CN105585767A - Porous rotationally-molded product and preparation method thereof - Google Patents
Porous rotationally-molded product and preparation method thereof Download PDFInfo
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- CN105585767A CN105585767A CN201510534460.7A CN201510534460A CN105585767A CN 105585767 A CN105585767 A CN 105585767A CN 201510534460 A CN201510534460 A CN 201510534460A CN 105585767 A CN105585767 A CN 105585767A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 59
- -1 polyethylene Polymers 0.000 claims abstract description 28
- 239000004698 Polyethylene Substances 0.000 claims abstract description 27
- 229920000573 polyethylene Polymers 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001175 rotational moulding Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 12
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 5
- 235000019253 formic acid Nutrition 0.000 claims description 5
- 238000010348 incorporation Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- 239000004323 potassium nitrate Substances 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 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 claims 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 235000015424 sodium Nutrition 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 238000004080 punching Methods 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 description 10
- 239000004033 plastic Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000010237 hybrid technique Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011017 operating method Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C08K3/16—Halogen-containing compounds
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1535—Five-membered rings
-
- 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
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
- C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
-
- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a porous rotationally-molded product and a preparation method thereof. The porous rotationally-molded product is prepared from, by mass, 50.0-99.5% of polyethylene powder and 0.5-50.0% of soluble powder. By means of the porous rotationally-molded product and the preparation method, the complex process of punching conducted through existing machines is avoided, the operation process is simplified, and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of plastic products, particularly a kind of porous rotomoulded articles and preparation method thereof.
Background technology
Rotation molding is a kind of plastic processing mode of utilizing the mould of rotation to process, and it was processedCheng Shi, drops into mould by plastic powders or slurry, and the mould after closure is rotated or shakes on equipmentPendulum heats mould outside by naked light or hot blast simultaneously, and plastic powders or slurry are being heatedUnder state in mould interior overturn, flow, temperature is progressively applied to mould inner surface after reaching softening point,Melting is also condensed, mould is put under natural environment or by the media such as water, mist, wind carry out cooling afterGoods are taken out in form removal.
The plastic products that use rotational molding technique processing, major part belongs to hollow container, be used for splendid attire water andVarious chemical solutions. Rotomoulded articles wall is closely knit, continuous, non-leakage plastic layer. At someField, buoyancy aid, the sight of blocking water plant as the preliminary filtration storage tank of water treatment procedure, the river course water surfaceThe cultivating trays of reward property plant etc., need rotomoulded articles to have a large amount of holes and come filtered water or other liquid.Can only meet by the post-processed method with mechanical punching at present the instructions for use of porous, existProblem: complex operation, production efficiency is low.
Summary of the invention
The object of the invention is to overcome prior art above shortcomings, a kind of porous rotational moulding is providedGoods provide its preparation method simultaneously, have avoided the complicated processes of existing use mechanical punching,Simplify operating procedure, improved production efficiency.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of porous rotomoulded articles, is mixed by the raw material components of following mass percent meter: polyethylene powderEnd 50.0-99.5%, soluble powder 0.5-50.0%.
The ratio of controlling polyethylene powders and soluble powder is very crucial. Inventor is through studying for a long period of timeFind, in the process of rotational moulding, in plastic powders, add the specific soluble powder of specified quantitative, logicalCross the improvement of technique, can produce two kinds of even plastic products of powder distribution, then plastic products are soakedEnter to a period of time in specific solution, by soluble powder stripping, just can directly produce porousThe rotomoulded articles of shape, thus the loaded down with trivial details mode that uses machine drilling to process avoided, improve and produced effectRate, has easy processing, and surface effect is good, the feature of good penetrability.
As preferably, described polyethylene powders bulk density is 0.250-0.500g/cm3, powder fluidity≤30s/100g, melt flow rate (MFR) (190 DEG C, 2.16Kg) is 1.0-20.0g/10min.
As preferably, the bulk density of described polyethylene powders is 0.300-0.400g/cm3, powder fluidity≤ 30s/100g, melt flow rate (MFR) (190 DEG C, 2.16Kg) is 3.0-7.0g/10min.
As preferably, the particle diameter distribution D98≤600 μ m of described polyethylene powders, D10 >=150 μ m.
Control the parameter of polyethylene powders as bulk density, powder fluidity, melt flow rate (MFR), grainThe effect that footpath distributes is mainly 1, uses the moulding smoothly of rotational moulding processing technology, and product defect is few; 2,With the requirement collocation of soluble powder, otherwise moulding smoothly.
As preferably, described soluble powder be and polyethylene inconsistent, can be dissolved in water, acid, alkali orIn organic solvent, form is spherical, needle-like, sheet or fibrous, and its fusing point >=250 DEG C, dissolveDegree >=2g/100g, the solid state powder of particle diameter distribution D98≤850 μ m.
As preferably, described soluble powder be and polyethylene inconsistent, can be dissolved in water formFor spherical, its fusing point >=300 DEG C, solubility >=10g/100g, particle diameter distribution D98≤850 μ m,The solid state powder of D10 >=150 μ m.
The object that the fusing point of control soluble powder, solubility, particle diameter distribute is: fusing point is low, is rollingMould in processing and can melt or soften, effect disappears, and solubility is little, and later stage stripping smoothly formsNot cavity, particle diameter will be arranged in pairs or groups with polyethylene powders, can not layering in rotational moulding process.
As preferably, described soluble powder is selected from sodium chloride, potassium chloride, calcium chloride, aluminum sulfate, sulfuric acidA kind of in copper, magnesium sulfate, sodium sulphate, sodium carbonate, sodium nitrate, potassium nitrate, phenolphthalein, starch orSeveral mixtures.
Select above-mentioned specific soluble powder, first incompatible with polyethylene, then in polyethyleneDisperse more evenly, good water solubility, easily soaks and removes.
A preparation method for porous rotomoulded articles, comprises the following steps:
(1) by polyethylene powders and soluble powder, on middling speed mixer, mix in proportion, mixTechnological parameter is: rotating speed 5-50rpm, incorporation time 3-20min;
(2) powder step (1) being mixed drops in mould, through rotational molding machine machine-shaping goods.
(3) the good goods of rotation molding are put into solvent and soak, soaking temperature 10-60 DEG C, soak time1-48h。
As preferably, step (2) rotational molding machine working process parameter is: oven temperature 190-300 DEG C, rotating speed3-20rpm, heat time 15-40min, cool time 20-40min.
As preferably, the described solvent of step (3) is water, ethanol or formic acid. Ethanol mass concentration 98%, firstAcid is anhydrous formic acid, analyzes pure level.
The invention has the beneficial effects as follows:
(1) porous rotomoulded articles of the present invention, processing technology is simple, has avoided existing use machinery to beatThe complicated processes in hole, has simplified operating procedure, has improved production efficiency.
(2) preparation method of the present invention is simple, without complex apparatus, easily realizes industrialization operation.
Detailed description of the invention
Below by specific embodiment, technical scheme of the present invention is described in further detail.
In the present invention, if not refer in particular to, raw material and the equipment etc. adopting all can be buied from market or thisField is commonly used. Method in following embodiment, if no special instructions, is the routine side of this areaMethod.
The raw material that the present invention uses is commercially available prod. Wherein polyethylene is direct from manufacturer buysUse. LLDPELL6201RQ, Thailand that the preferred trade mark of polyethylene powders is Exxon Mobil CorporationLLDPE735RUP, the LLDPE3204RUP of company of Siam of state. Wherein soluble powder is citySell SILVER REAGENT powder.
Polyethylene powders meets parameter: bulk density is 0.250-0.500g/cm3, powder fluidity≤30s/100g, melt flow rate (MFR) (190 DEG C, 2.16Kg) is 1.0-20.0g/10min. Particle diameter distributesD98≤600μm,D10≥150μm。
Soluble powder meets parameter:: and polyethylene is inconsistent, can be dissolved in water, form is ballShape, its fusing point >=300 DEG C, solubility >=10g/100g, particle diameter distribution D98≤850 μ m,The solid state powder of D10 >=150 μ m.
Embodiment 1
By the sodium chloride powder of 50.0% polyethylene powders (LLDPELL6201RQ) and 50.0%,On middling speed mixer, mix in proportion, hybrid technique parameter is: rotating speed 50rpm, and when mixingBetween 3min. The powder mixing is dropped in mould, through rotational molding machine machine-shaping goods, processing technologyParameter is: 190 DEG C of oven temperatures, rotating speed 20rpm, heat time 40min, cool time 40min.The good goods of rotation molding are put into water and soak, 23 DEG C of soaking temperatures, soak time 48h.
Embodiment 2
By the calcium chloride powder of 80.0% polyethylene powders (LLDPE3204RUP) and 20%, pressRatio is mixed on middling speed mixer, and hybrid technique parameter is: rotating speed 5rpm, incorporation time20min. The powder mixing is dropped in mould, through rotational molding machine machine-shaping goods, processing technology ginsengNumber is: 300 DEG C of oven temperatures, rotating speed 3rpm, heat time 15min, cool time 20min. WillThe goods that rotation molding is good are put into water and are soaked, 60 DEG C of soaking temperatures, soak time 1h.
Embodiment 3
By the phenolphthalein powder of 99.5% polyethylene powders (LLDPE735RUP) and 0.5%, by thanExample is mixed on middling speed mixer, and hybrid technique parameter is: rotating speed 30rpm, incorporation time15min. The powder mixing is dropped in mould, through rotational molding machine machine-shaping goods. Processing technology ginsengNumber is: 250 DEG C of oven temperatures, rotating speed 10rpm, heat time 30min, cool time 30min.The good goods of rotation molding are put into ethanol (mass concentration 98%) and soak, 23 DEG C of soaking temperatures,Soak time 24h.
Embodiment 4
By the starch powder of 75.0% polyethylene powders (LLDPE735RUP) and 25.0%, by thanExample is mixed on middling speed mixer, and hybrid technique parameter is: rotating speed 40rpm, incorporation time10min. The powder mixing is dropped in mould, through rotational molding machine machine-shaping goods. Processing technology ginsengNumber is: 220 DEG C of oven temperatures, rotating speed 7rpm, heat time 30min, cool time 40min. WillThe goods that rotation molding is good are put in formic acid (anhydrous formic acid, analyzes pure level, commercially available) and are soaked, and soak10 DEG C of temperature, soak time 48h.
Porous rotomoulded articles of the present invention, processing technology is simple, has avoided existing use mechanical punchingComplicated processes, has simplified operating procedure, has improved production efficiency, and preparation method is simple, without complexityEquipment, easily realizes industrialization operation. The present invention is for the preparation of cavernous rotational moulding plastic products, as mistakeWater filtering tank, culturing disk, buoyancy aid etc.
Above-described embodiment is preferably scheme of one of the present invention, not the present invention is appointedWhat pro forma restriction also has other under the prerequisite that does not exceed the technical scheme that claim recordsVariant and remodeling.
Claims (10)
1. a porous rotomoulded articles, is characterized in that, is mixed by the raw material components of following mass percent meterMake: polyethylene powders 50.0-99.5%, soluble powder 0.5-50.0%.
2. a kind of porous rotomoulded articles according to claim 1, is characterized in that: described polyethylene powderEnd bulk density is 0.250-0.500g/cm3, powder fluidity≤30s/100g, melt flow rate (MFR) is1.0-20.0g/10min。
3. a kind of porous rotomoulded articles according to claim 2, is characterized in that: described polyethylene powderThe bulk density at end is 0.300-0.400g/cm3, powder fluidity≤30s/100g, melt flow rate (MFR)For 3.0-7.0g/10min.
4. according to a kind of porous rotomoulded articles described in claim 1 or 2 or 4, it is characterized in that: described inThe particle diameter distribution D98≤600 μ m of polyethylene powders, D10 >=150 μ m.
5. a kind of porous rotomoulded articles according to claim 1, is characterized in that: described soluble powderEnd is inconsistent with polyethylene, can be dissolved in water, acid, alkali or organic solvent, and form is ballShape, needle-like, sheet or fibrous, its fusing point >=250 DEG C, solubility >=2g/100g, particle diameter distributesThe solid state powder of D98≤850 μ m.
6. a kind of porous rotomoulded articles according to claim 5, is characterized in that: described soluble powderEnd is inconsistent with polyethylene, can be dissolved in water, and form is spherical, its fusing point >=300 DEG C,Solubility >=10g/100g, particle diameter distribution D98≤850 μ m, the solid state powder of D10 >=150 μ m.
7. a kind of porous rotomoulded articles according to claim 1, is characterized in that: described soluble powderEnd is selected from sodium chloride, potassium chloride, calcium chloride, aluminum sulfate, copper sulphate, magnesium sulfate, sodium sulphate, carbonThe mixture of one or more in acid sodium, sodium nitrate, potassium nitrate, phenolphthalein, starch.
8. the preparation method of a kind of porous rotomoulded articles as claimed in claim 1, is characterized in that, comprisesFollowing steps:
(1) by polyethylene powders and soluble powder, on middling speed mixer, mix in proportion, mixTechnological parameter is: rotating speed 5-50rpm, incorporation time 3-20min;
(2) powder step (1) being mixed drops in mould, through rotational molding machine machine-shaping goods;
(3) the good goods of rotation molding are put into solvent and soak, soaking temperature 10-60 DEG C, soak time1-48h。
9. preparation method according to claim 8, is characterized in that: the processing of step (2) rotational molding machineTechnological parameter is: oven temperature 190-300 DEG C, and rotating speed 3-20rpm, heat time 15-40min is coldBut time 20-40min.
10. preparation method according to claim 8, is characterized in that: the described solvent of step (3) isWater, ethanol or formic acid.
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Cited By (5)
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CN106609502A (en) * | 2016-12-21 | 2017-05-03 | 浙江瑞堂塑料科技有限公司 | Plastic car stopping device with stone-like effect |
CN108473714A (en) * | 2015-10-09 | 2018-08-31 | 惠普发展公司,有限责任合伙企业 | Particle mixture |
CN109535614A (en) * | 2018-12-18 | 2019-03-29 | 上海三爱富新材料科技有限公司 | The preparation method of fiber reinforcement porous fluoropolymer polymer |
CN111253669A (en) * | 2019-12-23 | 2020-06-09 | 浙江瑞堂塑料科技股份有限公司 | Rotational molding product with nano-structure surface and manufacturing process thereof |
CN116655994A (en) * | 2023-05-22 | 2023-08-29 | 罗摩材料(深圳)有限公司 | Porous polyethylene device and preparation method thereof |
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CN106609502A (en) * | 2016-12-21 | 2017-05-03 | 浙江瑞堂塑料科技有限公司 | Plastic car stopping device with stone-like effect |
CN109535614A (en) * | 2018-12-18 | 2019-03-29 | 上海三爱富新材料科技有限公司 | The preparation method of fiber reinforcement porous fluoropolymer polymer |
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Application publication date: 20160518 |