CN108485021A - A kind of graphene/liquid crystal collaboration reinforced thermoplastics pipe and preparation method thereof - Google Patents
A kind of graphene/liquid crystal collaboration reinforced thermoplastics pipe and preparation method thereof Download PDFInfo
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- CN108485021A CN108485021A CN201810104944.1A CN201810104944A CN108485021A CN 108485021 A CN108485021 A CN 108485021A CN 201810104944 A CN201810104944 A CN 201810104944A CN 108485021 A CN108485021 A CN 108485021A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 46
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 26
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 23
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920000098 polyolefin Polymers 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 12
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 12
- 239000004974 Thermotropic liquid crystal Substances 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001259 photo etching Methods 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000000314 lubricant Substances 0.000 claims abstract description 5
- 239000011858 nanopowder Substances 0.000 claims abstract description 5
- -1 β-hydroxy ethoxy Chemical group 0.000 claims description 19
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 235000010290 biphenyl Nutrition 0.000 claims description 8
- 239000004305 biphenyl Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 6
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 6
- 239000001993 wax Substances 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000012286 potassium permanganate Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical class [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003963 antioxidant agent Substances 0.000 abstract description 2
- 230000003078 antioxidant effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004425 Makrolon Substances 0.000 description 1
- 229920000784 Nomex Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000004763 nomex Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of graphene/liquid crystal to cooperate with reinforced thermoplastics pipe and preparation method thereof.Graphene/liquid crystal collaboration reinforced thermoplastics pipe is grouped as by the group of following parts by weight：40 ~ 60 parts of high-density polyethylene resins, 30 ~ 40 parts of active nano-powders, 1 ~ 2 part of three-dimensional netted graphene oxide, 4 ~ 7 parts of thermotropic liquid crystals, 5 ~ 10 parts of maleic anhydride stem grafting polyolefins, 0.5 ~ 2 part of lubricant, 0.5 ~ 0.9 part of antioxidant 1010,0.3 ~ 0.5 part of MB218 uvioresistant photo etching.It is added in high-speed mixer and is uniformly mixed, then rotating speed is set as 30 rpm, temperature is set as being granulated in 200 DEG C of double screw extruder, the finally extrusion molding at 200 DEG C, obtain graphene/liquid crystal collaboration reinforced thermoplastics pipe.Preparation method of the present invention is simple, can be produced on the basis of not changing existing plastic tube production technology, easy to utilize, and the hoop tensile strength of graphene obtained/liquid crystal collaboration reinforced thermoplastics pipe and thermal coefficient are significantly improved compared with common plastics tube.
Description
Technical field
The invention belongs to plastic pipe technical fields more particularly to a kind of graphene/liquid crystal to cooperate with reinforced thermoplastics
Pipe and preparation method thereof.
Background technology
Graphene be it is a kind of by single layer of carbon atom it is tightly packed made of bi-dimensional cellular shape lattice structure, have big pi bond total
Yoke system, unique physical arrangement feature and excellent performance, these excellent properties make it in field of polymer-base composite material
Using very extensive, it is only necessary to which few additive amount can be obviously improved the performances such as electricity, mechanics and the calorifics of composite material.But
The preparation method of current graphene is made a general survey of, mostly there is the defects of low yield, of high cost, of poor quality, limits answering for graphene
With and research.Simultaneously as the Van der Waals force between graphene sheet layer is stronger, be easy to happen reunion, and with matrix poor compatibility,
Graphene is caused to be extremely difficult to fine dispersion in the base.Graphene is widely used in nylon-6, epoxy resin, and polyurethane gathers
Styrene, polymethyl methacrylate, in the polymeric matrixs such as makrolon, but due in polyolefin substrate medium viscosity height and low
Surface energy, it is difficult to disperse and rare research.Graphene how is improved to ask with the good interfacial interaction of polyolefin and dispersibility
Topic is the key application for solving graphene in polyolefin plastic pipes.
Liquid crystal is a kind of fluid state between isotropy liquid and each diversity solid.Thermotropic liquid crystal unit
With auto-orientation, self-reinforcing characteristic, the height-oriented of this liquid crystal unit there is obstruction to make phon scattering in basis material
With so as to improve the heat conductivility of polymer.Meanwhile macromolecule matrix material, in melt blending process, liquid crystal will
It is scattered in basis material with the structure type of fiber, liquid crystal fiber is prone to streamwise with prodigious draw ratio and takes
To playing the role of reinforcing agent and processing aid in the composite, heat conduction and the mechanical property of composite material can be increased substantially
Energy.
In work China Democratic National Construction Association field, metallic conduit is since there are perishable, easy fouling, service life is short, not foldable, installation
The shortcomings of difficult, is gradually replaced by various Polyolefin plastic pipes such as PPR/PE/PVC pipes.Compared with metal pipe material, polyolefin plastics
Pipe has many advantages, such as that light, corrosion-resistant, specific strength is high, long lifespan, is widely used in building water supply and drainage, heating pipe system, center
The fields such as air-conditioning system, chemical engineering piping systems.But these Polyolefin plastic pipes are used due to bearing under pressure is not high enough and high temperature
Service life shorter reason, is restricted to having in high temperature and pressure long-life and thermal conductivity demand field.For this problem, state
The interior report modified to Polyolefin plastic pipe enhancing there are many document patent.Such as " graphene enhances the patent of invention of Liu Zhi light
Thermal conductivity compound polyolefin tubing "（Application number：201610148355.4）, it was recently reported that Nomex modified graphene and polyethylene
It is compound, three-layer composite pipe material is prepared through techniques such as mixing, plasticizing, extrusions.These polyolefin pipes can be 95 in temperature
DEG C, under conditions of more than 1.6MPa, service life reaches 50 years or more pressure.Utility model patent " the enhancing heat of a Tang Yun men of virtue and ability
Thermoplastic plastic tubing "（Application number：200620074020.4）, it was recently reported that nano-material modified high density polyethylene (HDPE) and complex polyester
Fiber composite is squeezed into the reinforced thermoplastics tubing with three-decker.The plastic pipe has impact resistance, high pressure resistant
The high feature of property, tube wall also have Fouling resistant.The invention of Tao Si equalitys " a kind of polyolefin heat conduction tubing that high resistant oxygen is high-strength and its
Preparation method "（Application number：20151056370.0）, it was recently reported that it is grafted with high density polyethylene (HDPE), graphene sheet layer, maleic anhydride
Polyethylene compatilizer, antioxidant mixing, are molded through twin-screw extrusion and prepare the excellent polyvinyl piping materials of high heat conduction barrier property.Institute
The tubing thermal coefficient of preparation is 0.87w/mK, hoop tensile strength 69.5MPa, and oxygen permeability coefficient is at 25 DEG C
0.096g·mm2/(L·MPa)。
Patent of the present invention cooperates with enhancing using three-dimensional netted graphene oxide and thermotropic liquid crystal, utilizes thermotropic liquid crystal
Liquid crystal fine fibrilation is formed in process and is easily orientated characteristic, is acted synergistically by the bridging of liquid crystal fine fibrilation and graphene net,
Prepare the plastic tube for having effects that enhance thermoplasticity.
Invention content
The object of the present invention is to provide a kind of graphene/liquid crystal to cooperate with reinforced thermoplastics pipe and preparation method thereof.
The graphene of the present invention/liquid crystal cooperates with reinforced thermoplastics pipe, is grouped as by the group of following parts by weight：
40 ~ 60 parts of high-density polyethylene resins, 30 ~ 40 parts of active nano-powders, 1 ~ 2 part of three-dimensional netted graphene oxide, 4 ~ 7 parts
Thermotropic liquid crystal, 5 ~ 10 parts of maleic anhydride stem grafting polyolefins, 0.5 ~ 2 part of lubricant, 0.5 ~ 0.9 part of antioxidant 1010 and 0.3 ~
0.5 part of MB218 uvioresistant photo etching.
Prepare above-mentioned graphene/liquid crystal collaboration reinforced thermoplastics pipe the specific steps are：
Weigh each component by above-mentioned parts by weight, be added in high-speed mixer and be uniformly mixed, then rotating speed be set as 30 rpm,
Temperature is set as being granulated in 200 DEG C of double screw extruder, the finally extrusion molding at 200 DEG C, obtains graphene/liquid crystal association
With reinforced thermoplastics pipe.
The active nano-powder is nano-calcium carbonate, nano silicon dioxide, nano aluminium oxide or nano-titanium dioxide.
The three-dimensional netted graphene oxide is prepared according to the following steps：
Squamaceous expanded graphite is aoxidized using Hummers methods are improved, the 80 mL concentrated sulfuric acids are packed into the beaker of 800 mL
In, 10 g potassium peroxydisulfates and 10 g phosphorus pentoxides are added under stiring, after being completely dissolved, are warming up to 90 DEG C, slowly add
Enter 3 g expanded graphites, be stirred to react 5 h, 10 g potassium permanganate are then slowly added under water bath condition, is warming up to 35 DEG C instead
After answering 2 h, 600 mL deionized waters are slow added into, 7 h are persistently stirred, it is 30% that 60mL concentration of volume percent, which is then added,
Hydrogen peroxide until mixture be in glassy yellow, standing so that graphite oxide is precipitated, outwell upper liquid, be with mass percent concentration
10% hydrochloric acid solution cleans 4 ~ 5 times, after ultrasonic wave removes 0.5 h, graphene oxide water solution is obtained, by the graphene oxide
Aqueous solution is placed in Rotary Evaporators and is poured into culture dish after concentration, dry in freeze drier that three-dimensional netted oxidation stone is made
Black alkene.
The thermotropic liquid crystal is 4,4 '-two (β-hydroxy ethoxy) biphenyl or 4,4 '-two (β-hydroxyl hexyloxy) biphenyl.
The maleic anhydride stem grafting polyolefin is maleic anhydride grafted polyethylene or maleic anhydride inoculated polypropylene.
The lubricant is polyethylene wax, ethylene bis stearamide, stearic acid or paraffin.
Compared with the prior art, the present invention has the following advantages：
(1) preparation method of the invention is simple, can be produced on the basis of not changing existing plastic tube production technology, convenient for promoting
Using.
(2) hoop tensile strength of graphene of the invention/liquid crystal collaboration reinforced thermoplastics pipe and thermal coefficient compared with
Common plastics tube is significantly improved, and can solve the problems, such as that existing plastic tube intensity low heat conductivity is poor.
Specific implementation mode
In order to enable those skilled in the art to be further understood that the feature and technology contents of the present invention, below with embodiment
It is described further, but protection domain is not limited by this.Primary raw material used in following embodiment：Three-dimensional netted graphite oxide
Alkene（It makes by oneself in laboratory）, 4,4 '-two (β-hydroxy ethoxy) biphenyl（It makes by oneself in laboratory）, 4,4 '-two (β-hydroxyl hexyloxy) connection
Benzene（It makes by oneself in laboratory）, high density polyethylene (HDPE)（Technical grade）, nano-calcium carbonate（Technical grade）, nano silicon dioxide（Technical grade）,
Nano aluminium oxide（Technical grade）, maleic anhydride grafted polyethylene（Technical grade）, polyethylene wax（Technical grade）, antioxidant 1010（Work
Industry grade）, MB218 uvioresistant photo etchings（Technical grade）.
Embodiment 1：
（1）Each component is weighed according to following parts by weight：58 parts of high-density polyethylene resin, 30 parts of active nano-calcium carbonate, three
Tie up 1 part of netted graphene oxide, 4,4 '-two (β-hydroxyl hexyloxy) 4 parts of biphenyl, 6 parts of maleic anhydride grafted polyethylene, polyethylene
0.3 part of 1 part of wax, 0.5 part of antioxidant 1010 and MB218 uvioresistants photo etching.
（2）By step（1）The component weighed is added in high-speed mixer and is uniformly mixed, and is then set as 30 in rotating speed
Rpm, temperature are set as being granulated in 200 DEG C of double screw extruder, and the finally extrusion molding at 200 DEG C obtains graphene/liquid
Crystalline substance collaboration reinforced thermoplastics pipe.
Graphene made from the present embodiment/liquid crystal cooperates with reinforced thermoplastics pipe, hoop tensile strength 22.5
MPa, thermal coefficient 0.38W/mK.
Embodiment 2：
（1）Each component is weighed according to following parts by weight：60 parts of high-density polyethylene resin, 30 parts of nano silicon dioxide, three-dimensional
1 part of netted graphene oxide, 4,4 '-two (β-hydroxyl hexyloxy) 4 parts of biphenyl, 6 parts of maleic anhydride grafted polyethylene, polyethylene wax
0.3 part of 1 part, 0.5 part of antioxidant 1010 and MB218 uvioresistants photo etching.
（2）By step（1）The component weighed is added in high-speed mixer and is uniformly mixed, and is then set as 30 in rotating speed
Rpm, temperature are set as being granulated in 200 DEG C of double screw extruder, and the finally extrusion molding at 200 DEG C obtains graphene/liquid
Crystalline substance collaboration reinforced thermoplastics pipe.
Graphene made from the present embodiment/liquid crystal cooperates with reinforced thermoplastics pipe, hoop tensile strength 23.4
MPa, thermal coefficient 0.37W/mK.
Embodiment 3：
（1）Each component is weighed according to following parts by weight：60 parts of high-density polyethylene resin, 30 parts of nano-aluminium oxide, three
Tie up 1 part of netted graphene oxide, 4,4 '-two 4 parts of (β-hydroxy ethoxy) biphenyl, 6 parts of maleic anhydride grafted polyethylene, polyethylene
0.3 part of 1.2 parts of wax, 0.5 part of antioxidant 1010 and MB218 uvioresistants photo etching.
（2）By step（1）The component weighed is added in high-speed mixer and is uniformly mixed, and is then set as 30 in rotating speed
It is granulated in rpm, the double screw extruder that temperature is 200 DEG C, the finally extrusion molding at 200 DEG C, obtains graphene/liquid crystal association
With reinforced thermoplastics pipe.
Graphene made from the present embodiment/liquid crystal cooperates with reinforced thermoplastics pipe, hoop tensile strength 23.8
MPa, thermal coefficient 0.46W/mK.
Claims (2)
1. a kind of graphene/liquid crystal cooperates with reinforced thermoplastics pipe, it is characterised in that the graphene/liquid crystal collaboration enhancing thermoplastic
Property plastic tube is grouped as by the group of following parts by weight：
40 ~ 60 parts of high-density polyethylene resins, 30 ~ 40 parts of active nano-powders, 1 ~ 2 part of three-dimensional netted graphene oxide, 4 ~ 7 parts
Thermotropic liquid crystal, 5 ~ 10 parts of maleic anhydride stem grafting polyolefins, 0.3 ~ 1 part of lubricant, 0.5 ~ 0.9 part of antioxidant 1010 and 0.3 ~
0.5 part of MB218 uvioresistant photo etching；
The active nano-powder is nano-calcium carbonate, nano silicon dioxide, nano aluminium oxide or nano-titanium dioxide；
The three-dimensional netted graphene oxide is prepared according to the following steps：Using improvement Hummers methods to squamaceous expanded graphite
It is aoxidized, the 80 mL concentrated sulfuric acids is fitted into the beaker of 800 mL, 10 g potassium peroxydisulfates and 10 g five oxidations are added under stiring
Two phosphorus are warming up to 90 DEG C after being completely dissolved, and are slowly added to 3 g expanded graphites, 5 h are stirred to react, then in water bath condition
Under be slowly added to 10 g potassium permanganate, after being warming up to 35 DEG C of 2 h of reaction, be slow added into 600 mL deionized waters, it is lasting to stir
7 h, the hydrogen peroxide that then addition 60mL concentration of volume percent is 30% are in glassy yellow until mixture, and standing makes graphite oxide
Precipitation, outwells upper liquid, and the hydrochloric acid solution for being 10% with mass percent concentration cleans 4 ~ 5 times, after ultrasonic wave removes 0.5 h, obtains
To graphene oxide water solution, which is placed in Rotary Evaporators after concentrating and is poured into culture dish,
It is dry in freeze drier that three-dimensional netted graphene oxide is made；
The thermotropic liquid crystal is 4,4 '-two (β-hydroxy ethoxy) biphenyl or 4,4 '-two (β-hydroxyl hexyloxy) biphenyl；
The maleic anhydride stem grafting polyolefin is maleic anhydride grafted polyethylene or maleic anhydride inoculated polypropylene；
The lubricant is polyethylene wax, ethylene bis stearamide, stearic acid or paraffin.
2. a kind of preparation method of graphene as described in claim 1/liquid crystal collaboration reinforced thermoplastics pipe, it is characterised in that
The specific steps are：
All components are added in high-speed mixer and are uniformly mixed, then rotating speed is set as 30 rpm, temperature is set as 200 DEG C
Double screw extruder in be granulated, the finally extrusion molding at 200 DEG C obtains the collaboration enhancing thermoplasticity modeling of graphene/liquid crystal
Expects pipe.
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| CN113561444A (en) * | 2021-06-21 | 2021-10-29 | 安徽杰蓝特新材料有限公司 | High-strength wear-resistant PE gas pipe and processing method thereof |
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Effective date of registration: 20221228 Address after: 433000 Central Section of Xianpeng Avenue, Pengchang Town, Xiantao City, Hubei Province Patentee after: HUBEI HUIFENG PLASTIC PIPE Co.,Ltd. Address before: 541004 the Guangxi Zhuang Autonomous Region Guilin City Seven Star District Building Road No. 12 Patentee before: GUILIN University OF TECHNOLOGY |
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Denomination of invention: A graphene/liquid crystal synergistically enhanced thermoplastic tube and its preparation method Granted publication date: 20190723 Pledgee: Bank of China Limited Xiantao branch Pledgor: HUBEI HUIFENG PLASTIC PIPE Co.,Ltd. Registration number: Y2024980029753 |