CN104987592A - Hydrophobic enhanced foamed polypropylene and polymer absorbent composite material and preparation method thereof - Google Patents

Hydrophobic enhanced foamed polypropylene and polymer absorbent composite material and preparation method thereof Download PDF

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CN104987592A
CN104987592A CN201510389617.1A CN201510389617A CN104987592A CN 104987592 A CN104987592 A CN 104987592A CN 201510389617 A CN201510389617 A CN 201510389617A CN 104987592 A CN104987592 A CN 104987592A
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parts
composite material
warming
hydrophobic
oil
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沈向洋
吴克
余志敏
蒋涌
吴杰
吴育兵
樊云
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ANHUI CHENGFANG NEW MATERIAL TECHNOLOGY Co Ltd
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ANHUI CHENGFANG NEW MATERIAL TECHNOLOGY Co Ltd
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    • 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
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    • C08L23/12—Polypropene
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    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/32—Materials not provided for elsewhere for absorbing liquids to remove pollution, e.g. oil, gasoline, fat
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1812—C12-(meth)acrylate, e.g. lauryl (meth)acrylate
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/06—CO2, N2 or noble gases
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/20—Ternary blends of expanding agents
    • C08J2203/204—Ternary blends of expanding agents of chemical foaming agent and physical blowing agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils
    • 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
    • C08L2207/066—LDPE (radical process)

Abstract

The invention discloses a hydrophobic enhanced foamed polypropylene and polymer absorbent composite material. The hydrophobic enhanced foamed polypropylene and polymer absorbent composite material is characterized by being compared, by weight, by the following raw materials of 95-98 parts of high-melt-strength polypropylene, 2-3 parts of low-density polyethylene, 2-3 parts of calcium carbonate, 2-3 parts of ammonium bicarbonate, 3-4 parts of sisal fibers, 0.5-0.6 part of vinyltriethoxysilane, appropriate deionized water, 4-5 parts of methylcellulose, 13-15 parts of butyl acrylate, 7.5-9 parts of dodecyl methacrylate, 0.08-0.1 part of N,N-methylene bisacrylamide, 0.5-0.6 part of azodiisobutyronitrile, 11-12.5 parts of ethyl acetate and 2-3 parts of bis(2-ethylhexyl) phosphate. According to the hydrophobic enhanced foamed polypropylene and polymer absorbent composite material and a preparation method thereof, the composite material is prepared by adopting a novel technology, the two advantages that resin is strong in oil-keeping performance and foamed polypropylene is high in oil-absorption times are merged together, the whole prepared product is better in oil absorbency, the preparation method is simple, the hydrophobic property is excellent, and the strength of the product is high.

Description

A kind of hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material and preparation method thereof
Technical field
The present invention relates to Material Field, particularly a kind of hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material and preparation method thereof.
Background technology
Oil has " black gold ", the title of " economic blood ", is widely used in the every field of national economy.Fast development along with China's economy and the increase to energy demand, its range of application is also expanded in continuation, and consumption also increases increasingly.In crude oil production, processing, transport, refining and use procedure, owing to being subject to the restriction of state of the art and treatment technology, a large amount of waste water containing oily substance, waste residue are inevitably discharged in water body, cause great destruction to the marine eco-environment and freshwater environment.Oil spilling in water, oil stain not only reduce the quality of ocean and fresh water environment, affect the circulation of food chain, destroy the eubiosis, also threaten the health of the mankind, and will address these problems, just in the urgent need to developing efficient, durable, clean oil absorption material.
Oil absorption material mainly can be divided into three major types, i.e. inorganic oil absorption material, organic synthesis oil absorption material and organic natural oil absorption material.Expanded polypropylene foam is a kind of high crystallization composite material of performance brilliance, compared with other TPO, polypropylene has higher rigidity, excellent mechanical property, good thermotolerance and chemical stability are the excellent materials for industrial uses such as filtering separation, not only recyclable recycling, and can natural degradation, can not white pollution be caused, thus be called as " green " foam.Polypropylene foam, due to its good mechanical property, excellent resistance toheat and the character being beneficial to environment protection, is the foam materials of new generation after traditional polystyrene foam, polyurethane foam and polyethylene, has a wide range of applications.But this material is as sorbing material, have some shortcomings, such as there is gravity, to protect oily rate lower, after absorbing, extruding is leaked again, and due to vesicular structure, specific surface area is large, the volatility of absorbed high volatile volatile liquid cannot be suppressed, undesirable etc. to poisonous explosive chemical treatments effect.Methyl acrylic ester high oil absorbing resin is one of the study hotspot in oil absorption material field in recent years, methyl acrylic ester high oil absorbing resin is the function that Van der Waals force by producing between the oleophilic group in molecular chain and oil molecule realizes oil suction, oil product difficult drop-off after resin material oil suction, protect oily rate high, the advantage of oil-absorbing resin with expanded polypropylene foam combines by imagination, propose in expandable polypropylene resin process, polyacrylic resin to be cross-linked wherein, in order to improve material Oil keeping energy, novel material has just possessed the two-fold advantage of physical adsorption and chemical absorption.
Summary of the invention
The object of this invention is to provide a kind of hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material.The present invention coordinates physical blowing with calcium carbonate, bicarbonate of ammonia for chemical foaming agent, by a series of technique, macromolecule resin is evenly distributed on the hole wall of expanded polypropylene, add the sisal fibers with vinyltriethoxysilane modification, the hydrophobicity of product, intensity etc. can be improved, make oil suction fast, oil suction multiplying power is high, protect the high enhancement type novel material of oily rate.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material, be made up of the raw material of following weight part: high melt strength, propylene 95-98, Low Density Polyethylene 2-3, calcium carbonate 2-3, bicarbonate of ammonia 2-3, sisal fibers 3-4, vinyltriethoxysilane 0.5-0.6, deionized water are appropriate, methylcellulose gum 4-5, butyl acrylate 13-15, lauryl methacrylate 7.5-9, N, N ,-methylene-bisacrylamide 0.08-0.1, Diisopropyl azodicarboxylate 0.5-0.6, ethyl acetate 11-12.5, di (isooctyl) phosphate 2-3;
The hydrophobic enhancement type expanded polypropylene of one of the present invention and polymeric absorbent matrix material, be made up of following concrete steps:
(1) methylcellulose gum is added in the deionized water of 30 times amount, be heated to while stirring dissolve completely, after being cooled to room temperature, add ethyl acetate, N, N slowly successively under nitrogen protection ,-methylene-bisacrylamide, Diisopropyl azodicarboxylate, butyl acrylate, lauryl methacrylate, di (isooctyl) phosphate, controlling stirring velocity is 1000 revs/min, then 40 DEG C are slowly warming up to, stirring reaction is after 10 minutes, continue to be warming up to 70 DEG C, stirring reaction is after 20 minutes, continue to be warming up to 80 DEG C, with the speed stirring reaction 1 hour of 400 revs/min, obtain microspheres with solid, reaction system is down to room temperature, the microspheres with solid obtained is filtered, with 80 DEG C of deionized water wash 3 times, the finally dry subtree lipoid microsphere that namely secures satisfactory grades for 24 hours at 50 DEG C;
(2) sisal fibers is ground into 100 order powder, then by the deionized water of powder and 5 times amount, vinyltriethoxysilane puts into ball mill, be warming up to 80 DEG C, ball milling 2 hours, cooling leaves standstill, taking precipitate, baking oven is put into after repeatedly cleaning with distilled water, rear and calcium carbonate is dried under the condition of 80 DEG C, bicarbonate of ammonia continues to put into ball mill, take out after 15-20 minute with the temperature ball milling of 60-70 DEG C, jointly put into high-speed mixer with Low Density Polyethylene to mix, then foaming modification particle is obtained by forcing machine extruding pelletization, controlling forcing machine extrusion temperature is 100-120 DEG C, screw speed is 300-400 rev/min,
(3) put in the hopper of Bitruder after polymer resin microspheres mixing high melt strength, propylene, foaming modification particle and step (1) obtained, extruding machine starts screw rod knob after being warming up to 180-200 DEG C, plastify mixing 120-150 minute, carry out first time foaming; After cylindrical shell interruption mixture has melted plasticizing evenly, carbon dioxide (add-on being controlled carbonic acid gas by flowrate control valve is 10% of melting materials capable quality) is injected under 10-15MPa condition, keep after 40-50 minute, then be down to normal pressure, then foam; By the melt extrusion plastified, the temperature controlling extruder head is 200-210 DEG C, can obtain sidewall and be covered with microporous foam pipe, can prepare the particle of expanded polypropylene and macromolecule resin compound after air natural cooling with special dicing machine pelletizing.
The invention has the beneficial effects as follows: first the present invention prepares polymer resin microspheres, then by a series of technique by the sisal fibers of surface hydrophobicity process with activation after calcium carbonate, bicarbonate of ammonia etc. carry out composite, polypropylene, polymer resin microspheres puts into extruding machine fusing plasticizing jointly, pass through chemical foaming, pass into the physical blowings such as carbonic acid gas, modified active process is carried out to whipping agent, reduce the decomposition temperature of whipping agent, do not affect gas forming amount simultaneously, form uniform foam cell, constitutionally stable matrix material, there is larger specific surface area, improve absorption property.
The present invention adopts the technique of innovation to make matrix material, not only having merged resin Oil keeping can strong, the large advantage of expanded polypropylene oil suction multiplying power two, and the Total Product oil absorptiveness made is better, preparation method is simple, hydrophobic performance is excellent, product strength is high, is widely used in oil leakage, water pollution control, oily water separation and the field such as hazardous chemical protection and emergency processing, has applied range, the features such as absorption rate is fast, convenient to use.
Specific embodiments
Below by specific examples, the present invention is described in detail.
A kind of hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material, be made up of the raw material of following weight part (kilogram): high melt strength, propylene 95, Low Density Polyethylene 2, calcium carbonate 2, bicarbonate of ammonia 2, sisal fibers 3, vinyltriethoxysilane 0.5, deionized water are appropriate, methylcellulose gum 4, butyl acrylate 13, lauryl methacrylate 7.5, N, N ,-methylene-bisacrylamide 0.08, Diisopropyl azodicarboxylate 0.5, ethyl acetate 11, di (isooctyl) phosphate 2;
The hydrophobic enhancement type expanded polypropylene of one of the present invention and polymeric absorbent matrix material, be made up of following concrete steps:
(1) methylcellulose gum is added in the deionized water of 30 times amount, be heated to while stirring dissolve completely, after being cooled to room temperature, add ethyl acetate, N, N slowly successively under nitrogen protection ,-methylene-bisacrylamide, Diisopropyl azodicarboxylate, butyl acrylate, lauryl methacrylate, di (isooctyl) phosphate, controlling stirring velocity is 1000 revs/min, then 40 DEG C are slowly warming up to, stirring reaction is after 10 minutes, continue to be warming up to 70 DEG C, stirring reaction is after 20 minutes, continue to be warming up to 80 DEG C, with the speed stirring reaction 1 hour of 400 revs/min, obtain microspheres with solid, reaction system is down to room temperature, the microspheres with solid obtained is filtered, with 80 DEG C of deionized water wash 3 times, the finally dry subtree lipoid microsphere that namely secures satisfactory grades for 24 hours at 50 DEG C;
(2) sisal fibers is ground into 100 order powder, then by the deionized water of powder and 5 times amount, vinyltriethoxysilane puts into ball mill, be warming up to 80 DEG C, ball milling 2 hours, cooling leaves standstill, taking precipitate, baking oven is put into after repeatedly cleaning with distilled water, rear and calcium carbonate is dried under the condition of 80 DEG C, bicarbonate of ammonia continues to put into ball mill, take out after 15 minutes with the temperature ball milling of 60-70 DEG C, jointly put into high-speed mixer with Low Density Polyethylene to mix, then foaming modification particle is obtained by forcing machine extruding pelletization, controlling forcing machine extrusion temperature is 100-120 DEG C, screw speed is 300 revs/min,
(3) put in the hopper of Bitruder after polymer resin microspheres mixing high melt strength, propylene, foaming modification particle and step (1) obtained, extruding machine starts screw rod knob after being warming up to 180-200 DEG C, plastify mixing 120 minutes, carry out first time foaming; After cylindrical shell interruption mixture has melted plasticizing evenly, under 10MPa condition, inject carbon dioxide (add-on being controlled carbonic acid gas by flowrate control valve is 10% of melting materials capable quality), keep after 40 minutes, then be down to normal pressure, then foam; By the melt extrusion plastified, the temperature controlling extruder head is 200-210 DEG C, can obtain sidewall and be covered with microporous foam pipe, can prepare the particle of expanded polypropylene and macromolecule resin compound after air natural cooling with special dicing machine pelletizing.
Detect matrix material of the present invention, result is specific absorption (0# diesel oil) 91.3%, specific absorption (trichloroethane) 90.1%; Protect oily rate (0# diesel oil) 84.9%, protect oily rate (trichloroethane) 83.2%, be far longer than inspecting standard.

Claims (2)

1. a hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material, it is characterized in that, be made up of the raw material of following weight part: high melt strength, propylene 95-98, Low Density Polyethylene 2-3, calcium carbonate 2-3, bicarbonate of ammonia 2-3, sisal fibers 3-4, vinyltriethoxysilane 0.5-0.6, deionized water are appropriate, methylcellulose gum 4-5, butyl acrylate 13-15, lauryl methacrylate 7.5-9, N, N ,-methylene-bisacrylamide 0.08-0.1, Diisopropyl azodicarboxylate 0.5-0.6, ethyl acetate 11-12.5, di (isooctyl) phosphate 2-3.
2. a kind of hydrophobic enhancement type expanded polypropylene and polymeric absorbent matrix material according to claim 1, is characterized in that, be made up of following concrete steps:
(1) methylcellulose gum is added in the deionized water of 30 times amount, be heated to while stirring dissolve completely, after being cooled to room temperature, add ethyl acetate, N, N slowly successively under nitrogen protection ,-methylene-bisacrylamide, Diisopropyl azodicarboxylate, butyl acrylate, lauryl methacrylate, di (isooctyl) phosphate, controlling stirring velocity is 1000 revs/min, then 40 DEG C are slowly warming up to, stirring reaction is after 10 minutes, continue to be warming up to 70 DEG C, stirring reaction is after 20 minutes, continue to be warming up to 80 DEG C, with the speed stirring reaction 1 hour of 400 revs/min, obtain microspheres with solid, reaction system is down to room temperature, the microspheres with solid obtained is filtered, with 80 DEG C of deionized water wash 3 times, the finally dry subtree lipoid microsphere that namely secures satisfactory grades for 24 hours at 50 DEG C;
(2) sisal fibers is ground into 100 order powder, then by the deionized water of powder and 5 times amount, vinyltriethoxysilane puts into ball mill, be warming up to 80 DEG C, ball milling 2 hours, cooling leaves standstill, taking precipitate, baking oven is put into after repeatedly cleaning with distilled water, rear and calcium carbonate is dried under the condition of 80 DEG C, bicarbonate of ammonia continues to put into ball mill, take out after 15-20 minute with the temperature ball milling of 60-70 DEG C, jointly put into high-speed mixer with Low Density Polyethylene to mix, then foaming modification particle is obtained by forcing machine extruding pelletization, controlling forcing machine extrusion temperature is 100-120 DEG C, screw speed is 300-400 rev/min,
(3) put in the hopper of Bitruder after polymer resin microspheres mixing high melt strength, propylene, foaming modification particle and step (1) obtained, extruding machine starts screw rod knob after being warming up to 180-200 DEG C, plastify mixing 120-150 minute, carry out first time foaming; After cylindrical shell interruption mixture has melted plasticizing evenly, carbon dioxide (add-on being controlled carbonic acid gas by flowrate control valve is 10% of melting materials capable quality) is injected under 10-15MPa condition, keep after 40-50 minute, then be down to normal pressure, then foam; By the melt extrusion plastified, the temperature controlling extruder head is 200-210 DEG C, can obtain sidewall and be covered with microporous foam pipe, can prepare the particle of expanded polypropylene and macromolecule resin compound after air natural cooling with special dicing machine pelletizing.
CN201510389617.1A 2015-07-06 2015-07-06 Hydrophobic enhanced foamed polypropylene and polymer absorbent composite material and preparation method thereof Pending CN104987592A (en)

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CN108479731A (en) * 2018-04-23 2018-09-04 杭州鼎好新材料有限公司 A kind of absorption heavy metal ion porous polyethylene ball and preparation method thereof
CN113393963A (en) * 2021-06-29 2021-09-14 晶锋集团股份有限公司 Multi-core flame-retardant crosslinked polyethylene cable material and preparation method thereof
CN114316341A (en) * 2021-12-31 2022-04-12 中科贝思达（厦门）环保科技股份有限公司 Fiber foam material for oil adsorption and preparation method thereof

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CN108479731A (en) * 2018-04-23 2018-09-04 杭州鼎好新材料有限公司 A kind of absorption heavy metal ion porous polyethylene ball and preparation method thereof
CN113393963A (en) * 2021-06-29 2021-09-14 晶锋集团股份有限公司 Multi-core flame-retardant crosslinked polyethylene cable material and preparation method thereof
CN114316341A (en) * 2021-12-31 2022-04-12 中科贝思达（厦门）环保科技股份有限公司 Fiber foam material for oil adsorption and preparation method thereof

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Application publication date: 20151021