CN114836975B - Composite fiber-based material for heat insulation of pipeline and preparation method thereof - Google Patents
Composite fiber-based material for heat insulation of pipeline and preparation method thereof Download PDFInfo
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- 239000000835 fiber Substances 0.000 title claims abstract description 78
- 239000000463 material Substances 0.000 title claims abstract description 56
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000009413 insulation Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title abstract description 23
- 239000004964 aerogel Substances 0.000 claims abstract description 97
- 238000000576 coating method Methods 0.000 claims abstract description 83
- 239000011248 coating agent Substances 0.000 claims abstract description 77
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 50
- 239000000725 suspension Substances 0.000 claims abstract description 28
- 239000006185 dispersion Substances 0.000 claims abstract description 25
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 20
- 239000004917 carbon fiber Substances 0.000 claims abstract description 20
- 238000000227 grinding Methods 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims abstract description 12
- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 11
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 10
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- 239000011521 glass Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 35
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 28
- 229920000178 Acrylic resin Polymers 0.000 claims description 20
- 239000004925 Acrylic resin Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
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- 239000000126 substance Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
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- 230000006872 improvement Effects 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 27
- 229910052814 silicon oxide Inorganic materials 0.000 description 26
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 239000011259 mixed solution Substances 0.000 description 8
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- 239000012774 insulation material Substances 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 3
- 235000019832 sodium triphosphate Nutrition 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
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- 238000003860 storage Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- -1 thermal bonding Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to a composite fiber-based material for pipeline heat insulation and a preparation method thereof, wherein the composite fiber-based material comprises a fiber base layer and SiO 2 Aerogel coating, siO 2 The aerogel coating is arranged on the upper surface and the lower surface of the fiber base layer; and, siO 2 Aerogel coating is formed by a coating containing SiO 2 The aerogel coating is formed by drying and curing, and comprises the following components in parts by weight: nano SiO 2 10-20 parts of aerogel suspension, 1-5 parts of ultrafine carbon fiber, 2-5 parts of aluminum powder, 2-5 parts of hollow glass beads, 30-40 parts of adhesive, 4-12 parts of dispersing agent and 2-5 parts of auxiliary agent. The invention uses SiO 2 Improvement of aerogel coating to improve nano SiO in composite fiber-based material 2 The dispersibility of the aerogel particles and the binding force of the aerogel coating and the fiber base layer are improved. Meanwhile, the invention provides a preparation method of the composite fiber-based material, which adopts a mode of combining high-speed shearing dispersion, ultrasonic dispersion and grinding dispersion, thereby further improving nano SiO 2 The dispersion uniformity of the aerogel particles is improved, and the particle size is thinned.
Description
Technical Field
The invention relates to the technical field of heat insulation materials, in particular to a composite fiber-based material for heat insulation of a pipeline and a preparation method thereof.
Background
Along with the continuous acceleration of industrialization town production in China, the energy consumption is also increased continuously, and energy conservation and emission reduction are becoming the urgent problems to be solved in various industries. In the fields of petroleum, chemical industry, metallurgy and the like, various parts and structures such as transmission pipelines, storage equipment, valves and the like are effectively insulated, so that the heat energy loss can be reduced, and the energy consumption is saved. Therefore, it is important to select a material that can efficiently insulate heat. At present, aiming at pipelines, oil storage tanks and other thermodynamic equipment, the common heat preservation materials mainly comprise inorganic materials, and mainly comprise rock wool, glass fiber, foam glass, aluminum silicate fiber, perlite and the like. However, inorganic fiber materials have poor thermal insulation properties in high temperature environments, and as the temperature increases, the thermal conductivity increases; and the pipe line equipment is easy to absorb moisture to corrode, and the pipe line equipment has the defects of high brittleness, poor wear resistance and the like, so that the wide application of the pipe line equipment in the field of high-temperature heat insulation is limited.
SiO 2 Aerogel is an amorphous SiO with air as main component 2 Is a basic skeleton, has the characteristics of low density, low thermal conductivity and the like, and is made of nano light porous material with a complex three-dimensional network structure 2 The aerogel has extremely low porosity, the pore diameter is generally nano-scale and smaller than the average free path of air molecules, and can effectively limit heat transfer generated by mutual collision of the air molecules, so that the aerogel can be used as a light and efficient heat insulation material. And, siO 2 Aerogel is also often added to inorganic fiber materials to make up for the deficiencies of inorganic fiber materials and to prepare new composite insulation materials. In the prior art, the fiber-based aerogel composite heat insulation material is generally prepared by methods of gel integral molding, coating, thermal bonding, chemical bonding, dipping and the like, wherein the coating method has simple process and low cost, is an efficient preparation method, but SiO exists 2 The problem that aerogel powder is unevenly dispersed and aerogel and fiber base material are difficult to combine needs to be solved.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned shortcomings and disadvantages of the prior art, the present invention provides a composite fiber-based material for pipe insulation and a method for preparing the same, by reacting SiO 2 Improvement of aerogel coating and further optimization of preparation method, nano SiO is improved 2 Dispersibility of aerogel particles and SiO 2 The binding force between the aerogel coating and the fiber base layer improves the overall heat insulation performance, wear resistance, toughness and other mechanical properties of the composite fiber base material.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
in a first aspect, the present invention provides a method forA composite fiber-based material for pipe insulation, wherein the composite fiber-based material comprises a fiber-based layer and SiO 2 Aerogel coating, siO 2 The aerogel coating is arranged on the upper surface and the lower surface of the fiber base layer;
and, siO 2 Aerogel coating is formed by a coating containing SiO 2 The aerogel coating is formed by drying and curing, and comprises the following components in parts by weight: nano SiO 2 10-20 parts of aerogel suspension, 1-5 parts of ultrafine carbon fiber, 2-5 parts of aluminum powder, 2-5 parts of hollow glass beads, 30-40 parts of adhesive, 4-12 parts of dispersing agent and 2-5 parts of auxiliary agent.
Wherein, nano SiO 2 The aerogel particles are prepared into a suspension, the nano particles can be more uniformly distributed in the suspension, and the nano SiO can be promoted in the subsequent coating preparation process 2 Aerogel particles are easier to disperse and more uniform in dispersion.
Preferably, nano SiO 2 The aerogel suspension is prepared from the following substances in parts by weight:
nano SiO 2 10-15 parts of aerogel, 2-3 parts of silane coupling agent, 3-5 parts of dispersing agent and 70-80 parts of deionized water.
Preferably, the silane coupling agent may be one of KH550, KH560 or KH 570.
Preferably, the dispersing agent can be one or more of sodium tripolyphosphate, sodium tetrapolyphosphate, sodium hexametaphosphate, sodium polyacrylate, ammonium polyacrylate and polymethacrylic acid.
Preferably, nano SiO 2 The aerogel particles are obtained by modifying the silane coupling agent. After the silane coupling agent is hydrolyzed, the silane coupling agent is combined with nano SiO 2 The silicon hydroxyl on the surface acts, one end of the silicon hydroxyl is reacted with nano SiO 2 The surface is connected, the other end can be combined with an organic solvent, so that the nano SiO modified by the silane coupling agent 2 The suspension prepared from the aerogel particles is easier to disperse in the organic solvent in the preparation process, so that aggregation is avoided, and the dispersion is more uniform.
In addition, the invention takes the ultrafine carbon fiber as SiO 2 Enhanced phases of aerogel coatings with high carbon fiberStrength, high modulus, corrosion resistance and high temperature resistance, and improves SiO 2 The mechanical property of the aerogel coating can further improve the wear resistance and corrosion resistance of the composite fiber-based material and the compressive strength. Meanwhile, the smaller the diameter of the fiber material, the lower the thermal conductivity thereof, and the ultrafine carbon fiber is generally smaller than 5 μm in diameter and has lower thermal conductivity than the ordinary carbon fiber, so the ultrafine carbon fiber is used for reinforcing SiO 2 The aerogel coating has good heat insulation performance while having mechanical properties.
Preferably, the very fine carbon fibers have a diameter of 500nm to 5. Mu.m.
Preferably, the composite fiber-based material comprises two or more fiber-based layers, the two or more fiber-based layers passing between the SiO 2 The aerogel coating is bonded.
Preferably, the fiber base layer is one of aluminum silicate fiber felt, rock wool and glass wool. More preferably, the fibrous base layer is a high silica glass cloth.
Preferably, the binder comprises an acrylic resin and an alkaline silica sol. The alkaline silica sol is a colloidal solution in which silica particles of different sizes are not present in water, and the pH is in the range of 9 to 10.
Preferably, the mass ratio of the acrylic resin to the alkaline silica sol is 1:3-4. More preferably, the mass ratio of the acrylic resin to the alkaline silica sol is 1:3.
The adhesive is prepared by compounding acrylic resin and alkaline silica sol, on one hand, the alkaline silica sol has a large amount of water and hydroxyl groups, and is easy to disperse in the aqueous acrylic resin, when water evaporates, colloid particles are firmly adhered to the surface of an object by utilizing silica bonding, and the adhesive effect of a coating and a fiber base layer is improved; at the same time, siO in the paint 2 The components of aerogel and alkaline silica sol are SiO 2 Thus SiO in the coating 2 Aerogel can also form silica-bonded bonds with colloid particles in alkaline silica sol to enhance SiO 2 The bonding strength of the aerogel on the surface of the fiber base material; on the other hand, the alkaline silica sol provides a large number of hydroxyl groups and siloxane bonds with higher heat resistanceThe silica sol can be used as a reinforcing agent of acrylic resin to improve SiO 2 Thermal performance, toughness, compressive strength of aerogel coatings. In addition, aluminum powder can also combine with silicon oxygen bond to form Al-Si-O network structure, thus leading to nano SiO 2 The aerogel particles are incorporated into the reticulated framework structure to achieve uniform distribution, further improving strength. Meanwhile, aluminum powder has higher reflectivity to infrared rays, and the aluminum powder is used as a reflective heat-insulating pigment and filler to improve the heat-insulating effect of the coating.
Preferably, the auxiliary agents include wetting agents, defoamers, wetting leveling agents, film forming aids.
In a second aspect, the present invention provides a method for preparing a composite fiber-based material, wherein the method specifically comprises the steps of:
s1, nano SiO 2 Mixing aerogel, a silane coupling agent, a dispersing agent and deionized water according to a proportion, and then placing the mixture into a high-shear mixing dispersing machine to carry out high-speed shearing dispersion, and obtaining SiO after uniform dispersion 2 An aerogel suspension;
s2, adding superfine carbon fiber, aluminum powder, hollow glass beads, adhesive, dispersing agent and auxiliary agent into the SiO obtained in the step S1 according to the proportion 2 After the aerogel suspension is put into an ultrasonic dispersing machine for ultrasonic dispersion, and then put into a grinding machine for grinding dispersion, and the SiO is obtained after uniform dispersion 2 An aerogel coating;
s3, adopting a coater to carry out the SiO obtained in the step S2 2 The aerogel coating is coated on the upper surface and the lower surface of the fiber base layer, and the composite fiber base material is obtained after heating and drying.
The invention adopts a multi-layer dispersion scheme combining high-speed shearing dispersion, ultrasonic dispersion and grinding dispersion, and the high-speed shearing dispersion utilizes shearing force to break and split agglomerated nano particles so as to disperse the agglomerated nano particles in a medium to obtain suspension; mixing the prepared suspension with other materials, and further dispersing the agglomerated nano particles by utilizing huge impact force and microjet generated by ultrasonic waves; finally, grinding and dispersing are combined, the grain diameter is further refined, and finally, siO with uniform grain diameter and uniform distribution is obtained 2 Aerogel coating。
Preferably, in the step S1, the rotation speed of the high-speed shearing dispersion is 1800-2000r/min, and the time is 10-20min.
Preferably, in step S2, the time of ultrasonic dispersion is 20-30min.
Preferably, in step S2, the grinding dispersion speed is 2000-4000r/min, and the time is 1-2h. More preferably, the milling time is 2 hours.
(III) beneficial effects
The invention provides a composite fiber-based material for pipeline heat insulation and a preparation method thereof, wherein a coating method is adopted to coat SiO on the surface of a fiber base layer 2 Aerogel coating by coating SiO 2 Improvements in aerogel coatings to improve SiO in conventional coating processes 2 The aerogel is unevenly distributed and the bonding of the coating to the fibrous base layer is difficult.
The invention modifies the nanometer SiO modified by the silane coupling agent 2 The aerogel particle gum is mixed with other fillers in the form of suspension, so that the nano SiO is improved 2 The dispersibility of the aerogel particles combines three dispersion modes of high-speed shearing dispersion, ultrasonic dispersion and grinding dispersion, so that the uniformity of particle dispersion is further improved, and the particle size is refined.
The high-temperature adhesive is obtained by compounding the acrylic resin and the alkaline silica sol, and the alkaline silica sol can be used as a reinforcing agent of the acrylic resin to increase SiO (silicon oxide) 2 The toughness and the tensile strength of the aerogel coating make up the defect of high brittleness of the inorganic fiber material, and improve the overall toughness and the tensile strength of the composite fiber-based material; meanwhile, the alkaline silica sol contains a large amount of hydroxyl groups, so that the film forming material formed by the silica sol and the acrylic resin has higher strength and adhesive force, the adhesive force between the coating and the fiber base layer is improved, and the SiO is formed 2 The aerogel coating can be better bonded to the fibrous base layer.
Further, the SiO of the present invention 2 The superfine carbon fiber added in the aerogel coating utilizes the characteristics of high strength, high modulus, corrosion resistance and high temperature resistance of the superfine carbon fiber, improves the mechanical property and the heat insulation property of the coating, and further improves the composite fiber base materialThe wear resistance, compressive strength and other mechanical properties of the material.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments for better explaining the present invention. It should be understood, however, that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the embodiment of the invention, unless specified, the equipment and the method used are all conventional equipment and methods in the field, and all the used chemical reagents can be purchased from various chemical reagent sales companies, for example, alkaline silica sol is purchased from Shandong Asahi Kabushiki Kaisha, and has the particle size of 10-20nm and the solid content of 30-40%; the superfine carbon fiber is from Beijing De island gold technology Co., ltd, diameter of 2 μm, length of 10-20 μm.
Example 1
The embodiment provides a preparation method of a composite fiber-based material for heat insulation of a pipeline, which specifically comprises the following steps:
(1) Preparation of SiO 2 Aerogel suspension: firstly, 10 parts by weight of nano SiO 2 The aerogel particles are dissolved in deionized water, 2 parts of KH570 and 3 parts of sodium tripolyphosphate are added while stirring, and the mixture is placed in a high-shear mixing dispersing machine for high-speed shearing and dispersing, wherein the rotating speed is 2000r/min, and the time is 10min.
(2) Preparation of SiO 2 Aerogel coating: siO prepared by the steps 2 The aerogel suspension is 20 weight parts, 4 parts of superfine carbon fiber, 3 parts of aluminum powder, 2 parts of hollow glass beads, 40 parts of adhesive (wherein, 10 parts of acrylic resin, 30 parts of alkaline silica sol), 10 parts of dispersing agent and 5 parts of auxiliary agent are added into the SiO 2 And (3) in the aerogel suspension, placing the mixed solution in an ultrasonic dispersing machine for ultrasonic dispersion for 20min, and then placing the mixed solution in a grinding machine for grinding and dispersing at the rotating speed of 4000r/min for 2h.
(3) Preparing a composite fiber base material: the preparation method of the catalyst in the last stepSiO of (2) 2 The aerogel coating is coated on the surface of high silica glass fiber cloth in a double-sided coating mode by a coating machine, the thickness of the coating is 0.2mm, after the upper surface is coated, the coating is pre-dried for 10min at 90 ℃, then the coating is carried out on the lower surface, the pre-dried for 10min at 90 ℃, and finally the drying is carried out for 30min at 200 ℃ to obtain the composite fiber-based material.
Example 2
This example provides a method for preparing a composite fiber-based material for pipe insulation, differing from example 1 in SiO 2 Content of binder acrylic resin and alkaline silica sol in aerogel coating:
(1) Preparation of SiO 2 Aerogel suspension: firstly, 10 parts by weight of nano SiO 2 The aerogel particles are dissolved in deionized water, 2 parts of KH570 and 3 parts of sodium tripolyphosphate are added while stirring, and the mixture is placed in a high-shear mixing dispersing machine for high-speed shearing and dispersing, wherein the rotating speed is 2000r/min, and the time is 10min.
(2) Preparation of SiO 2 Aerogel coating: siO prepared by the steps 2 The aerogel suspension is 20 weight parts, 4 parts of superfine carbon fiber, 3 parts of aluminum powder, 2 parts of hollow glass beads, 40 parts of adhesive (wherein, 7 parts of acrylic resin, 33 parts of alkaline silica sol), 10 parts of dispersing agent and 5 parts of auxiliary agent are added into the SiO 2 And (3) in the aerogel suspension, placing the mixed solution in an ultrasonic dispersing machine for ultrasonic dispersion for 20min, and then placing the mixed solution in a grinding machine for grinding and dispersing at the rotating speed of 4000r/min for 2h.
(3) Preparing a composite fiber base material: the SiO prepared in the previous step is treated 2 The aerogel coating is coated on the surface of high silica glass fiber cloth in a double-sided coating mode by a coating machine, the thickness of the coating is 0.2mm, after the upper surface is coated, the coating is pre-dried for 10min at 90 ℃, then the coating is carried out on the lower surface, the pre-dried for 10min at 90 ℃, and finally the drying is carried out for 30min at 200 ℃ to obtain the composite fiber-based material.
Comparative example 1
In this example, the conditions were changed based on example 1, and only the contents of the acrylic resin and the alkaline silica sol in the adhesive in step (2) were changed: the adhesive in the step (2) was changed to 20 parts of acrylic resin, 20 parts of alkaline silica sol, and the other conditions were unchanged.
Comparative example 2
In this example, the conditions were changed on the basis of example 1, and only the binder in step (2) was changed to an acrylic resin, 40 parts by weight, and the other conditions were unchanged.
Example 3
The embodiment provides a preparation method of a composite fiber-based material for heat insulation of a pipeline, which specifically comprises the following steps:
(1) Preparation of SiO 2 Aerogel suspension: 15 parts by weight of nano SiO is firstly added 2 The aerogel particles are dissolved in deionized water, 3 parts of KH560 and 5 parts of sodium polyacrylate are added while stirring, and the mixture is placed in a high-shear mixing dispersing machine for high-speed shearing and dispersing, wherein the rotating speed is 1900r/min, and the time is 15min.
(2) Preparation of SiO 2 Aerogel coating: siO prepared by the steps 2 The aerogel suspension is 20 weight parts, 2 parts of superfine carbon fiber, 5 parts of aluminum powder, 5 parts of hollow glass beads, 35 parts of adhesive (wherein, 8 parts of acrylic resin, 27 parts of alkaline silica sol), 10 parts of dispersing agent and 5 parts of auxiliary agent are added into the SiO 2 And (3) in the aerogel suspension, placing the mixed solution in an ultrasonic dispersing machine for ultrasonic dispersion for 30min, and then placing the mixed solution in a grinding machine for grinding and dispersing at the rotating speed of 3500r/min for 2h.
(3) Preparing a composite fiber base material: the SiO prepared in the previous step is treated 2 The aerogel coating is coated on the surface of high silica glass fiber cloth in a double-sided coating mode by a coating machine, the thickness of the coating is 0.2mm, after the upper surface is coated, the coating is pre-dried for 10min at 90 ℃, then the coating is carried out on the lower surface, the pre-dried for 10min at 90 ℃, and finally the drying is carried out for 30min at 200 ℃ to obtain the composite fiber-based material.
Comparative example 3
In this example, the modification of the silane coupling agent-modified nano SiO was directly carried out by changing the conditions based on example 3, omitting the step of preparing the suspension in step (1) 2 Aerogel slurry was mixed with other coating components, the rest of the procedure was the same as in example 2。
Example 4
The embodiment provides a preparation method of a composite fiber-based material for heat insulation of a pipeline, wherein in the step (1) and the step (2), the same as that in the embodiment 1, and in the step (3), two layers of high silica glass fiber cloth are adopted as fiber base materials:
(3) Preparing a composite fiber base material: the SiO prepared in the previous step is treated 2 The aerogel coating is coated on the upper surface of the first layer of high silica glass fiber cloth by a coating machine, the thickness of the coating is 0.15mm, after the upper surface is coated, the second layer of high silica glass fiber is arranged on the coating surface, the second layer of high silica glass fiber is pre-dried for 20min at the temperature of 100 ℃ to form a double-layer fiber base layer, the outer surface of the double-layer fiber base layer is coated on two sides, the thickness of the coating is 0.15mm, after the upper surface and the lower surface are coated, the upper surface and the lower surface are respectively pre-dried for 10min at the temperature of 90 ℃, and finally the composite fiber base material is obtained by drying for 30min at the temperature of 200 ℃.
Example 5
The embodiment provides a preparation method of a composite fiber-based material for heat insulation of a pipeline, which specifically comprises the following steps:
(1) Preparation of SiO 2 Aerogel suspension: 15 parts by weight of nano SiO is firstly added 2 The aerogel particles are dissolved in deionized water, 2 parts of KH560 and 5 parts of sodium polyacrylate are added while stirring, and the mixture is placed in a high-shear mixing dispersing machine for high-shear dispersing at a rotating speed of 1900r/min for 20min.
(2) Preparation of SiO 2 Aerogel coating: siO prepared by the steps 2 The aerogel suspension is 20 weight parts, 4 parts of superfine carbon fiber, 2 parts of aluminum powder, 4 parts of hollow glass beads, 30 parts of adhesive (wherein, 10 parts of acrylic resin, 20 parts of alkaline silica sol), 10 parts of dispersing agent and 5 parts of auxiliary agent are added into the SiO 2 And (3) in the aerogel suspension, placing the mixed solution in an ultrasonic dispersing machine for ultrasonic dispersion for 25min, and then placing the mixed solution in a grinding machine for grinding and dispersing at the rotating speed of 4000r/min for 1.5h.
(3) Preparing a composite fiber base material: the SiO prepared in the previous step is treated 2 The aerogel coating adopts a coating machine and a double-sided coating mode and is coated onThe surface of the high silica glass fiber cloth is coated with the coating with the thickness of 0.15mm, the upper surface is pre-dried for 10min at the temperature of 90 ℃, the lower surface is coated, the pre-dried for 10min at the temperature of 90 ℃, and finally the composite fiber-based material is obtained after the drying for 30min at the temperature of 200 ℃.
Comparative example 4
In this example, the conditions were changed on the basis of example 5, and the ultrafine carbon fibers in step (2) were replaced with the same amount of aluminum silicate staple fibers, with the other conditions being unchanged.
Comparative example 5
In this example, the conditions were changed based on example 5, and the coating composition in step (2) was not added with aluminum powder, and the other conditions were unchanged.
Three test pieces 5cm by 5cm in area were taken from different positions on the fiber-based materials prepared in the above examples and comparative examples, and the thermal conductivity, compressive strength, tensile strength, and peel strength (ISO 24345 standard) of the test pieces were tested, and the average value of the three test pieces was determined, and the statistical results are shown in the following table:
as can be seen from the above-mentioned measured data, according to the comparison of examples 1 and 2 and comparative examples 1 and 2, when the high-temperature binder does not contain an alkali silica sol or the acrylic resin is excessively contained and the silica sol content is excessively small, i.e., the amount thereof is not within the optimum range of the present invention, the thermal conductivity, compressive strength, tensile strength and peel strength of the obtained composite fiber material are reduced because the silica sol is not contained or the silica sol content is small, siO is contained in a small amount 2 The film forming capability of the aerogel coating is reduced, siO 2 The binding force between the aerogel coating and the fiber base layer is weakened.
As can be seen from a comparison of example 3 and comparative example 3, when modified nano SiO is directly used 2 The coating obtained by mixing aerogel particles with other fillers is used for preparing composite fiber base materials, and the performances of the composite fiber base materials are due to nano SiO 2 Aerogel particles are dividedThe cloth is not uniform enough and descends to some extent. From comparative examples 4 and 5, it can be seen that the addition of the fine carbon fibers and aluminum powder in the coating layer can significantly improve the mechanical properties of the composite fiber-based material.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. A composite fiber-based material for heat insulation of a pipe, characterized in that the composite fiber-based material comprises a fiber-based layer and SiO 2 Aerogel coating, said SiO 2 The aerogel coating is arranged on the upper surface and the lower surface of the fiber base layer; the composite fiber-based material comprises two or more fiber base layers, wherein the SiO is arranged between the two or more fiber base layers 2 Bonding the aerogel coating; the fiber base layer is high silica glass fiber cloth;
the SiO is 2 Aerogel coating is formed by a coating containing SiO 2 The aerogel coating is formed by drying and curing, and comprises the following components in parts by weight: nano SiO 2 10-20 parts of aerogel suspension, 1-5 parts of ultrafine carbon fibers, 2-5 parts of aluminum powder, 2-5 parts of hollow glass beads, 30-40 parts of adhesive, 4-12 parts of dispersing agent and 2-5 parts of auxiliary agent;
the adhesive comprises acrylic resin and alkaline silica sol, wherein the mass ratio of the acrylic resin to the alkaline silica sol is 1:3; the diameter of the superfine carbon fiber is 500nm-5 mu m;
the nano SiO 2 The aerogel suspension is prepared from the following substances in parts by weight:
nano SiO 2 10-15 parts of aerogel, 2-3 parts of silane coupling agent, 3-5 parts of dispersing agent and 70-80 parts of deionized water.
2. A method of preparing the composite fiber-based material of claim 1, comprising the steps of:
s1, nano SiO 2 Mixing aerogel, a silane coupling agent, a dispersing agent and deionized water according to a proportion, and then placing the mixture into a high-shear mixing dispersing machine to carry out high-speed shearing dispersion, and obtaining SiO after uniform dispersion 2 An aerogel suspension;
s2, adding the superfine carbon fiber, aluminum powder, hollow glass beads, an adhesive, a dispersing agent and an auxiliary agent into the SiO obtained in the step S1 according to the proportion 2 After the aerogel suspension is put into an ultrasonic dispersing machine for ultrasonic dispersion, and then put into a grinding machine for grinding dispersion, and the SiO is obtained after uniform dispersion 2 An aerogel coating;
s3, adopting a coater to carry out the SiO obtained in the step S2 2 The aerogel coating is coated on the upper surface of the first fiber base layer, the second fiber base layer is placed on the coating layer, the second fiber base layer is pre-dried to form a double-layer fiber base layer, the outer surface of the double-layer fiber base layer is coated on two sides, and the composite fiber base material is obtained after heating and drying.
3. The method of producing a composite fiber-based material according to claim 2, wherein in step S1, the high-speed shearing dispersion is performed at a rotational speed of 1800 to 2000r/min for 10 to 20min.
4. The method of preparing a composite fiber-based material according to claim 2, wherein in step S2, the ultrasonic dispersion time is 20 to 30 minutes.
5. The method of producing a composite fiber-based material according to claim 2, wherein in step S2, the rotational speed of the grinding dispersion is 2000-4000r/min for 1-2 hours.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152029A (en) * | 2014-08-29 | 2014-11-19 | 中钢集团洛阳耐火材料研究院有限公司 | High-temperature-resistant nanometer hole heat-preserving paint and preparation method thereof |
| CN104231917A (en) * | 2014-10-13 | 2014-12-24 | 北京国泰瑞华精藻硅特种材料有限公司 | Nanometer high temperature resistant thermal insulation and prevention coating |
| CN106007635A (en) * | 2015-03-24 | 2016-10-12 | 金承黎 | Aerogel composite material with surface subjected to dust-free treatment and preparation method |
| CN109913007A (en) * | 2019-04-02 | 2019-06-21 | 北京新时代寰宇科技发展有限公司 | Water-soluble SiO2The preparation method and applications of aeroge exterior wall reflective thermal insulation coating |
| CN110713737A (en) * | 2019-09-27 | 2020-01-21 | 蓝天豚绿色建筑新材料(湘阴)有限公司 | Fireproof and heat-insulating inorganic mineral coating for buildings and preparation method thereof |
Family Cites Families (1)
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152029A (en) * | 2014-08-29 | 2014-11-19 | 中钢集团洛阳耐火材料研究院有限公司 | High-temperature-resistant nanometer hole heat-preserving paint and preparation method thereof |
| CN104231917A (en) * | 2014-10-13 | 2014-12-24 | 北京国泰瑞华精藻硅特种材料有限公司 | Nanometer high temperature resistant thermal insulation and prevention coating |
| CN106007635A (en) * | 2015-03-24 | 2016-10-12 | 金承黎 | Aerogel composite material with surface subjected to dust-free treatment and preparation method |
| CN109913007A (en) * | 2019-04-02 | 2019-06-21 | 北京新时代寰宇科技发展有限公司 | Water-soluble SiO2The preparation method and applications of aeroge exterior wall reflective thermal insulation coating |
| CN110713737A (en) * | 2019-09-27 | 2020-01-21 | 蓝天豚绿色建筑新材料(湘阴)有限公司 | Fireproof and heat-insulating inorganic mineral coating for buildings and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 基于气凝胶保温涂料的复合保温结构研究及应用;荣雁;;涂料工业(01);全文 * |
| 硅气凝胶/空心玻璃微珠保温涂料的研制;李建涛;韩兵正;;涂料工业(07);全文 * |
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