CN107722442A - A kind of EVA composition, foams and preparation method thereof - Google Patents

A kind of EVA composition, foams and preparation method thereof Download PDF

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Publication number
CN107722442A
CN107722442A CN201711080326.XA CN201711080326A CN107722442A CN 107722442 A CN107722442 A CN 107722442A CN 201711080326 A CN201711080326 A CN 201711080326A CN 107722442 A CN107722442 A CN 107722442A
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parts
foams
eva
agent
rubber
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陆芊芊
陆猷良
卓东贤
翟波
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FUJIAN JIAYI PLASTIC & RUBBER Co Ltd
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FUJIAN JIAYI PLASTIC & RUBBER Co Ltd
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    • 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
    • C08J9/06—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
    • C08J9/10—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • 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
    • C08J9/06—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
    • C08J9/06—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
    • C08J9/10—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/107—Nitroso compounds
    • 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
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • 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
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • 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
    • C08J2203/18—Binary blends of expanding 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
    • C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08J2309/02—Copolymers with acrylonitrile
    • 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
    • C08J2309/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08J2309/06—Copolymers with styrene
    • 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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • 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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2353/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2353/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
    • 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
    • C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2407/00—Characterised by the use of natural rubber
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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
    • C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—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
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene

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  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention discloses a kind of EVA composition, foams, by weight, including following component：0~20 part of 5~95 parts of EVAc, 0~70 part of EVAc reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, 0~95 part of rubber, 0~50 part of filler, 0~20 part of anti-wear agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, 0~7 part of assistant crosslinking agent, 2.0~6.0 parts of foamed promoter, 0~1.5 part of lubricant and toner.The invention also discloses a kind of preparation method of EVA composition, foams.The synthesis of the EVA composition, foams can significantly reduce processing charges, human cost and the freight needed for EVA productions, and be advantageous to the Basic Physical Properties that footwear material manufacturer neatly adjusts footwear material, have important application value and practical significance.

Description

A kind of EVA composition, foams and preparation method thereof
Technical field
The present invention relates to high polymer material foam field, and in particular to be a kind of EVA composition, foams and its preparation side Method.
Background technology
EVA, is ethane-acetic acid ethyenyl (vinyl acetate) ester copolymer, and it is by ethene (English name Ethylene) Prepared by being copolymerized with vinyl acetate (English name is Vinyl Acetate), English full name is Ethylene Vinyl Acetate, referred to as EVA, or E/VAC, wherein, the content of vinyl acetate is typically in 5%-40%.Because its is cheap, and And compared with polyethylene, because EVA introduces VAM in strand, so as to reduce crystallinity, improve soft Toughness, impact resistance, filler intermiscibility and heat sealing performance, thus it is widely used in footwear industry, building materials industry, case and bag industry and object for appreciation Have the fields such as industry.
At present, the EVA expanded materials applied to footwear material field mainly add elastomer, polyolefin, rubber, hair by EVA Prepared by being foamed after the auxiliary agents such as infusion, inserts, bridging agent, assistant crosslinking agent, foamed promoter and lubricant.However, for The functional characteristics such as lightweight, high-elastic, damping required by footwear material EVA midsoles, these auxiliary agents have often served conclusive.But It is that, for the EVA foaming midsoles using ejection formation, EVA and these auxiliary agents are often granulated, projected into by industrial quarters through disposable After type, EVA foaming midsoles are obtained, then have often resulted in the life of extra processing charges and human cost, especially EVA modified materials Business men, it can also bring extra freight.
The problems of technique is projected for current EVA foaming midsoles, exploitation one kind can not only significantly reduce EVA productions Required processing charges, human cost and freight, and be advantageous to the EVA hairs of footwear material manufacturer's flexible modulation Basic Physical Properties Foaming composition and preparation method thereof, there is important application value and practical significance.
The content of the invention
It is an object of the invention to provide a kind of EVA composition, foams and preparation method thereof, can significantly reduce EVA productions institute Processing charges, human cost and the freight needed, and be advantageous to the Basic Physical Properties that footwear material manufacturer neatly adjusts footwear material, have There are important application value and practical significance.
In order to reach above-mentioned purpose, solution of the invention is：
A kind of EVA composition, foams, by weight, including following component：5~95 parts of vinyl-vinyl acetate copolymer, 0~70 part of vinyl-vinyl acetate copolymer reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, 0~95 part of rubber, fill out Fill 0~50 part of agent, 0~20 part of anti-wear agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, 0~7 part of assistant crosslinking agent, hair Steep 0~20 part of 2.0~6.0 parts of accelerator, 0~1.5 part of lubricant and toner.
Preferably, the vinyl-vinyl acetate copolymer is 25~70 parts, the vinyl-vinyl acetate copolymer Reworked material is 10~40 parts, and the polyolefin is 10~70 parts, and the elastomer is 20~60 parts, and the rubber is 20~70 Part, the filler is 20~40 parts, and the anti-wear agent is 0~10 part, and the bridging agent is 2.0~4.0 parts, the foaming agent For 2.5~4.5 parts, the assistant crosslinking agent is 0~5 part, and the foamed promoter is 2.5~5.0 parts, the lubricant is 0~ 1.0 parts, the toner is 0~10 part.
Preferably, the polyolefin is a kind of in low density polyethylene (LDPE), high density polyethylene (HDPE) or LLDPE Or several combination；The vinyl-vinyl acetate copolymer is ethane-acetic acid ethyenyl of the vinyl acetate content 1~50% One or more of combinations in copolymer.
The elastomer is the combination of one or both of ethylene octane copolymer, styrene series thermoplastic elastomer； The rubber be natural rubber, neoprene, brombutyl, nitrile rubber, EPM, ethylene propylene diene rubber, One or more of combination in butadiene rubber, butadiene-styrene rubber；The filler be talcum powder, barium sulfate, titanium dioxide, fritillaria, One or more of combination in kaolin, calcium carbonate, silicon powder or aerosil；The anti-wear agent be molecular weight 1~ 1000000 polysiloxanes；The bridging agent be cumyl peroxide, dual-tert-butyl peroxy isopropyl base benzene, 2,5- dimethyl -2, One or more of combination in 5- double (tert-butyl peroxide) hexane, peroxidating (2- ethylhexyls) carbonic acid tert-pentyl esters；The hair Infusion is combinations one or more of in azodicarbonamide, N, N '-dinitrosopentamethylene tetramine and sodium acid carbonate.
The assistant crosslinking agent is one or two kinds of in Triallyl isocyanurate and trimethylolpropane trimethacrylate Combination；The foamed promoter is the combination of one or both of zinc oxide and zinc carbonate；The lubricant be stearic acid, One or more of combination in stearate, Wax or plasticizer.
A kind of preparation method of EVA composition, foams, comprises the following steps：
(1) following component is weighed in parts by weight：5~95 parts of vinyl-vinyl acetate copolymer, ethane-acetic acid ethyenyl 0~70 part of ester copolymer reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, 0~95 part of rubber, 0~50 part of filler, 0~20 part of anti-wear agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, 0~7 part of assistant crosslinking agent, foamed promoter 2.0 0~20 part of~6.0 parts, 0~1.5 part of lubricant and toner；
(2) after the mentioned component weighed in step (1) is well mixed, through mixer mixing, after comminutor is granulated, obtain Obtain the EVA composition, foams.
The time of the mixing is 2~30 minutes；The temperature of the mixing is 90~140 degree.
After adopting the above technical scheme, a kind of EVA composition, foams of the present invention, have the advantages that：1) due to inciting somebody to action Determine that the auxiliary agent of the functional characteristic such as footwear material lightweight, high-elastic, compression makes composition, therefore, footwear material only needed in injection molding by EVA composition, foams of the present invention are again with EVA resin after high mixer is well mixed, you can with by ejaculator ejection formation, from And greatly reduce processing charges and human cost in footwear material production process；2) enterprise is modified for EVA, due to only needing to provide EVA composition, foams give footwear material manufacturer, and account for the quite big EVA resin of whole formula rate then can be by footwear material manufacturer voluntarily Stock, therefore, greatly reduces EVA modified materials caused expense in transportation, can save cost of transportation this point Outlet to EVA modified materials seems even more important；3) present invention employs appropriate EVA (vinyl-vinyl acetate copolymer) As the dispersible carrier of EVA composition, foams, so as to be favorably improved the small powders such as foaming agent, lubricant and bridging agent in client The compatibility that end is blended with EVA resin again, it is easier to obtain the EVA foaming products of stable performance.
Embodiment
In order to which technical scheme is explained further, the present invention is explained in detail below by specific embodiment State.
A kind of EVA composition, foams, by weight, including following components：5~95 parts of vinyl-vinyl acetate copolymer, 0~70 part of vinyl-vinyl acetate copolymer reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, 0~95 part of rubber, fill out Fill 0~50 part of agent, 0~20 part of anti-wear agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, 0~7 part of assistant crosslinking agent, hair Steep 0~20 part of 2.0~6.0 parts of accelerator, 0~1.5 part of lubricant and toner.
Preferably, the vinyl-vinyl acetate copolymer is 25~70 parts, the vinyl-vinyl acetate copolymer Reworked material is 10~40 parts, and the polyolefin is 10~70 parts, and the elastomer is 20~60 parts, and the rubber is 20~70 Part, the filler is 20~40 parts, and the anti-wear agent is 0~10 part, and the bridging agent is 2.0~4.0 parts, the foaming agent For 2.5~4.5 parts, the assistant crosslinking agent is 0~5 part, and the foamed promoter is 2.5~5.0 parts, the lubricant is 0~ 1.0 parts, the toner is 0~10 part.
Preferably, the polyolefin is a kind of in low density polyethylene (LDPE), high density polyethylene (HDPE) or LLDPE Or several combination；The vinyl-vinyl acetate copolymer is ethane-acetic acid ethyenyl of the vinyl acetate content 1~50% One or more of combinations in copolymer.
Preferably, the elastomer is one or both of ethylene octane copolymer, styrene series thermoplastic elastomer Combination；The rubber is natural rubber, neoprene, brombutyl, nitrile rubber, EPM, ternary second One or more of combination in third rubber, butadiene rubber, butadiene-styrene rubber；The filler is talcum powder, barium sulfate, titanium dioxide One or more of combination in titanium, fritillaria, kaolin, calcium carbonate, silicon powder or aerosil；The anti-wear agent is molecule Measure the polysiloxanes 1~1,000,000；The bridging agent is cumyl peroxide, dual-tert-butyl peroxy isopropyl base benzene, 2,5- bis- One or more of combination in methyl -2,5- double (tert-butyl peroxide) hexane, peroxidating (2- ethylhexyls) carbonic acid tert-pentyl esters； The foaming agent is groups one or more of in azodicarbonamide, N, N '-dinitrosopentamethylene tetramine and sodium acid carbonate Close.
Preferably, the assistant crosslinking agent is a kind of in Triallyl isocyanurate and trimethylolpropane trimethacrylate Or two kinds of combination；The foamed promoter is the combination of one or both of zinc oxide and zinc carbonate；The lubricant is One or more of combination in stearic acid, stearate, Wax or plasticizer.
A kind of preparation method of EVA composition, foams, comprises the following steps：
(1) following components is weighed in parts by weight：5~95 parts of vinyl-vinyl acetate copolymer, ethane-acetic acid ethyenyl 0~70 part of ester copolymer reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, 0~95 part of rubber, 0~50 part of filler, 0~20 part of anti-wear agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, 0~7 part of assistant crosslinking agent, foamed promoter 2.0 0~20 part of~6.0 parts, 0~1.5 part of lubricant and toner；
(2) after the mentioned component weighed in step (1) is well mixed, through mixer mixing, after comminutor is granulated, obtain Obtain the EVA composition, foams.
The time of the mixing is 2~30 minutes；The temperature of the mixing is 90~140 degree.
Embodiment 1
1.EVA composition, foams
7 parts of vinyl-vinyl acetate copolymer, the vinyl-vinyl acetate copolymer reworked material 10 that EVA contents are 16% Part, 5 parts of LLDPE, 20 parts of POE, 10 parts of natural rubber, 10 parts of talcum powder, molecular weight 600,000 4 parts of silicone oil, 1.2 parts of dual-tert-butyl peroxy isopropyl base benzene, 2.0 parts of azodicarbonamide, Triallyl isocyanurate 1.3 Part, 1.8 parts of zinc oxide, 0.5 part of stearic acid and 3.0 parts of toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) will have been weighed in step 1) said components it is well mixed after, through the lower mixing 8 minutes of 120 degree of banbury, then through making After grain machine is granulated, the EVA composition, foams are obtained.
The preparation of 3.EVA expanded materials
Can be according to customer demand, the ethylene-acetate second for being 16% by the EVA composition, foams of gained and 50 parts of EVA contents After enoate copolymer is well mixed, after being foamed outside the injection of EVA ejaculators, vulcanization, mould, EVA expanded materials are obtained.
Performance test is carried out to the EVA expanded materials obtained, its Rockwell hardness is 52 (Type C), density 0.24g/ cm3, tensile strength 2.3MPa, elongation at break 250%, compression it is askew be deformed into 30% and rebound degree be 47%, Ke Yiman The performance requirement of sufficient EVA expanded materials.
Embodiment 2
1.EVA composition, foams
70 parts of vinyl-vinyl acetate copolymer reworked material, 3 parts of low density polyethylene (LDPE), 4 parts of ethylene-butylene copolymer, chlorine 3 parts of buna, 2 parts of barium sulfate, 1.2 parts of cumyl peroxide, N, N ' -3 parts of dinitrosopentamethylene tetramine, zinc carbonate 2 0.5 part of part and zinc stearate.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the said components weighed in step 1 are well mixed, through the lower mixing 30 minutes of 90 degree of banbury, then through making After grain machine is granulated, the EVA composition, foams are obtained.
Embodiment 3
1.EVA composition, foams
The ethane-acetic acid ethyenyl that 30 parts of the vinyl-vinyl acetate copolymer that EVA contents are 1%, EVA contents are 50% 65 parts of ester copolymer, 2,5- dimethyl -2,5- double 1.2 parts of (tert-butyl peroxide) hexane, 2.1 parts of sodium acid carbonate and zinc oxide 2.0 part.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 2 minutes of 140 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 4
1.EVA composition, foams
25 parts of the vinyl-vinyl acetate copolymer, 15 parts of low density polyethylene (LDPE), high-density polyethylene that EVA contents are 16% 55 parts of alkene, 0.6 part of cumyl peroxide, 0.6 part of peroxidating (2- ethylhexyls) carbonic acid tert-pentyl ester, 1.3 parts of sodium acid carbonate, idol 1.0 parts of 0.8 part of nitrogen diformamide, 1.0 parts of zinc oxide and zinc carbonate.
The preparation method of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 5
1.EVA composition, foams
75 parts of the vinyl-vinyl acetate copolymer, 10 parts of ethylene octene block copolymer, benzene second that EVA contents are 16% 5 parts of the block copolymer SBS of alkene and butadiene, 0.6 part of cumyl peroxide, peroxidating (2- ethylhexyls) carbonic acid uncle penta 1.0 parts of 0.6 part of ester, 1.0 parts of sodium acid carbonate, 1.5 parts of azodicarbonamide, 1.0 parts of zinc oxide and zinc carbonate.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 6
1.EVA composition, foams
5 parts of the vinyl-vinyl acetate copolymer, 30 parts of ethylene propylene diene rubber, butadiene-styrene rubber 60 that EVA contents are 16% Part, 0.6 part of cumyl peroxide, 0.6 part of peroxidating (2- ethylhexyls) carbonic acid tert-pentyl ester, 2.0 parts of sodium acid carbonate, azo two 1.0 parts of 0.8 part of formamide, 1.0 parts of zinc oxide and zinc carbonate.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 7
1.EVA composition, foams
The block copolymerization of 20 parts of vinyl-vinyl acetate copolymer, hydrogenated styrene and butadiene that EVA contents are 50% 20 parts of thing SEBS, 10 parts of silicon powder, 20 parts of fritillaria, 10 parts of kaolin, 10 parts of calcium carbonate, 2.4 parts of cumyl peroxide, carbon Sour 4.0 parts of hydrogen sodium, 1.0 parts of Triallyl isocyanurate, 2.0 parts of trimethylolpropane trimethacrylate, 4.0 parts of zinc oxide, 5.8 parts of 0.8 part of paraffin and toner.
The preparation method of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 8
1.EVA composition, foams
15 parts of the vinyl-vinyl acetate copolymer, 10 parts of neoprene, brombutyl 5 that EVA contents are 26% Part, 5 parts of nitrile rubber, 13 parts of calcium carbonate, 3.0 parts of aerosil, 2.4 parts of dual-tert-butyl peroxy isopropyl base benzene, bicarbonate 4.0 parts of sodium, 1.0 parts of Triallyl isocyanurate, 20 parts of the silicone oil that molecular weight is 1,000,000, trimethylolpropane tris acrylic acid 20 parts of 2.0 parts of ester, 3.8 parts of zinc oxide, 0.8 part of paraffin and toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 9
1.EVA composition, foams
7 parts of vinyl-vinyl acetate copolymer, the vinyl-vinyl acetate copolymer reworked material 40 that EVA contents are 26% 10 parts of the silicone oil, 2.0 parts of dual-tert-butyl peroxy isopropyl base benzene, sodium acid carbonate 2.5 that part, 25 parts of neoprene, molecular weight are 500,000 Part, 2.5 parts of zinc oxide, 1.0 parts of paraffin and 10 parts of toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 10
1.EVA composition, foams
3 parts of vinyl-vinyl acetate copolymer, the vinyl-vinyl acetate copolymer reworked material 20 that EVA contents are 26% Part, 60 parts of the block copolymer SBS of styrene and butadiene, 4.0 parts of cumyl peroxide, 4.5 parts of azodicarbonamide, 5 parts of 3.0 parts of zinc oxide, 0.5 part of paraffin and toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 11
1.EVA composition, foams
10 parts of the vinyl-vinyl acetate copolymer, 20 parts of POE, hydrogenation of benzene second that EVA contents are 50% 20 parts of 30 parts of Block copolymer SEBS, the talcum powder of alkene and butadiene, 5 parts of the silicone oil that molecular weight is 500,000, peroxidating diisopropyl 5.5 parts of 3.0 parts of benzene, 3.5 parts of azodicarbonamide, 2.5 parts of zinc oxide, 0.5 part of paraffin and toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 12
1.EVA composition, foams
15 parts of the vinyl-vinyl acetate copolymer, 70 parts of nitrile rubber, peroxidating (2- ethyl hexyls that EVA contents are 50% Base) 6.0 parts of 3.0 parts of carbonic acid tert-pentyl ester, 3.0 parts of azodicarbonamide, 2.5 parts of zinc oxide, 0.5 part of paraffin and toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 13
1.EVA composition, foams
29 parts of the vinyl-vinyl acetate copolymer, 40 parts of talcum powder, peroxidating (2- ethyl hexyls that EVA contents are 26% Base) 2.5 parts of carbonic acid tert-pentyl ester, 3.0 parts of azodicarbonamide, 5.0 parts of Triallyl isocyanurate, 5.0 parts of zinc oxide, paraffin 0.5 part and 15 parts of toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, and pass through After comminutor is granulated, the EVA composition, foams are obtained.
Embodiment 14
1.EVA composition, foams
20 parts of the vinyl-vinyl acetate copolymer, 10 parts of butadiene rubber, EPM 10 that EVA contents are 26% Part, 3.0 parts of talcum powder, 6.0 parts of dual-tert-butyl peroxy isopropyl base benzene, 5.0 parts of sodium acid carbonate, Triallyl isocyanurate 7.0 5 parts of part, 6.0 parts of zinc oxide, 1.5 parts of dioctyl phthalate (plasticizer) and toner.
The preparation of 2.EVA composition, foams
1) above-mentioned each component by weight, is weighed；
2) after the above-mentioned each component weighed in step 1 is well mixed, through the lower mixing 8 minutes of 120 degree of banbury, then pass through After comminutor is granulated, the EVA composition, foams are obtained.
Above-described embodiment and non-limiting product form of the invention and style, the ordinary skill people of any art The appropriate change or modification that member is done to it, it all should be regarded as not departing from the patent category of the present invention.

Claims (7)

  1. A kind of 1. EVA composition, foams, it is characterised in that：By weight, including following component：Ethylene-vinyl acetate c 5~95 parts of thing, 0~70 part of vinyl-vinyl acetate copolymer reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, rubber 0~95 part, 0~50 part of filler, 0~20 part of anti-wear agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, help crosslinking 0~20 part of 0~7 part of agent, 2.0~6.0 parts of foamed promoter, 0~1.5 part of lubricant and toner.
  2. A kind of 2. EVA composition, foams according to claim 1, it is characterised in that：The ethylene-vinyl acetate c Thing is 25~70 parts, and the vinyl-vinyl acetate copolymer reworked material is 10~40 parts, and the polyolefin is 10~70 parts, The elastomer be 20~60 parts, the rubber be 20~70 parts, the filler be 20~40 parts, the anti-wear agent be 0~ 10 parts, the bridging agent is 2.0~4.0 parts, and the foaming agent is 2.5~4.5 parts, and the assistant crosslinking agent is 0~5 part, described Foamed promoter is 2.5~5.0 parts, and the lubricant is 0~1.0 part, and the toner is 0~10 part.
  3. A kind of 3. EVA composition, foams according to claim 1, it is characterised in that：The polyolefin is low density polyethylene One or more of combination in alkene, high density polyethylene (HDPE) or LLDPE；The vinyl-vinyl acetate copolymer The one or more of combinations for being vinyl acetate content in 1~50% ethene-vinyl acetate copolymer.
  4. A kind of 4. EVA composition, foams according to claim 1, it is characterised in that：The elastomer is TPO bullet The combination of one or both of property body, styrene series thermoplastic elastomer；The rubber is natural rubber, neoprene, bromine Change one or more of in butyl rubber, nitrile rubber, EPM, ethylene propylene diene rubber, butadiene rubber, butadiene-styrene rubber Combination；The filler is talcum powder, barium sulfate, titanium dioxide, fritillaria, kaolin, calcium carbonate, silicon powder or gas phase titanium dioxide One or more of combination in silicon；The anti-wear agent is polysiloxanes of the molecular weight 1~1,000,000；The bridging agent is peroxide Change diisopropylbenzene (DIPB), dual-tert-butyl peroxy isopropyl base benzene, 2,5- dimethyl -2,5- double (tert-butyl peroxide) hexane, peroxidating (2- Ethylhexyl) combination one or more of in carbonic acid tert-pentyl ester；The foaming agent is azodicarbonamide, N, N '-dinitroso One or more of combination in pentamethylene tetramine and sodium acid carbonate.
  5. A kind of 5. EVA composition, foams according to claim 1, it is characterised in that：The assistant crosslinking agent is triallyl One or two kinds of combination in isocyanuric acid ester and trimethylolpropane trimethacrylate；The foamed promoter be zinc oxide and The combination of one or both of zinc carbonate；The lubricant is a kind of in stearic acid, stearate, Wax or plasticizer Or several combination.
  6. 6. prepare a kind of preparation method of EVA composition, foams as claimed in claim 1, it is characterised in that：Including following step Suddenly：
    (1) following component is weighed in parts by weight：5~95 parts of vinyl-vinyl acetate copolymer, ethane-acetic acid ethyenyl ester are common It is 0~70 part of polymers reworked material, 0~95 part of polyolefin, 0~95 part of elastomer, 0~95 part of rubber, 0~50 part of filler, wear-resisting 0~20 part of agent, 1.2~6.0 parts of bridging agent, 2.0~5.0 parts of foaming agent, 0~7 part of assistant crosslinking agent, foamed promoter 2.0~6.0 0~20 part of part, 0~1.5 part of lubricant and toner；
    (2) after the mentioned component weighed in step (1) is well mixed, through mixer mixing, after comminutor is granulated, institute is obtained State EVA composition, foams.
  7. A kind of 7. preparation method of EVA composition, foams according to claim 6, it is characterised in that：The mixing when Between be 2~30 minutes；The temperature of the mixing is 90~140 degree.
CN201711080326.XA 2017-11-06 2017-11-06 A kind of EVA composition, foams and preparation method thereof Pending CN107722442A (en)

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Cited By (24)

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Publication number Priority date Publication date Assignee Title
CN108503960A (en) * 2018-04-11 2018-09-07 东莞市福斯特橡塑科技有限公司 A kind of ethylene-vinyl acetate Special wear-resistant agent masterbatch particles and its production technology
CN108503945A (en) * 2018-04-24 2018-09-07 万家鑫（福建）皮塑鞋材有限公司 A kind of highway and freeway guardrail expanded material and preparation method thereof
CN108559170A (en) * 2018-05-11 2018-09-21 芜湖风雪橡胶有限公司 Eva shoe material masterbatch and preparation method thereof
CN108841070A (en) * 2018-05-17 2018-11-20 泉州师范学院 A kind of EVA composition, foam and preparation method thereof
CN108858953A (en) * 2018-06-11 2018-11-23 泉州师范学院 A kind of radio frequency foaming method of EVA material
CN108948506A (en) * 2018-06-28 2018-12-07 东莞兆阳兴业塑胶制品有限公司 A kind of rubber plastic foam material and preparation method thereof being easily punched
CN109132137A (en) * 2018-10-19 2019-01-04 扬中市华龙橡塑电器有限公司 A kind of EVA tool box lining
CN109337182A (en) * 2018-08-30 2019-02-15 福建豪威节能科技发展有限公司 A kind of lightweight high-elastic wear-resistant rubber and plastic crosslinked of the EVA containing regeneration
CN109438821A (en) * 2018-09-28 2019-03-08 陆芊芊 A kind of high thermal conductivity graphene modified EVA foamed material and preparation method thereof
CN109555292A (en) * 2018-10-30 2019-04-02 常州浩瀚万康纳米材料有限公司 A kind of improvement floor crashing sound insulation cushion blocking and preparation method thereof
CN109988356A (en) * 2019-04-09 2019-07-09 黎明职业大学 A kind of multifunctional composite powder body modified EVA composite foam material and preparation method thereof
CN110092978A (en) * 2019-05-23 2019-08-06 福建五持恒科技发展有限公司 Graphene regenerates EVA foamed shoe-pad and preparation method thereof
CN110372950A (en) * 2019-07-24 2019-10-25 温州市宜和鞋材有限公司 A kind of antibacterial and mouldproof footwear material and preparation method of shoe pads
CN110577696A (en) * 2019-09-19 2019-12-17 泉州师范学院 High-wear-resistance EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN110591214A (en) * 2019-09-19 2019-12-20 泉州师范学院 Fluorine-containing organic montmorillonite modified EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN110669278A (en) * 2019-11-17 2020-01-10 斯莱达医疗用品（惠州）有限公司 Pipe for effectively reducing condensate water of breathing pipeline
CN110982166A (en) * 2019-12-21 2020-04-10 惠安煜龙鞋业有限公司 High-elasticity wear-resistant EVA (ethylene-vinyl acetate copolymer) foamed shoe material and preparation method thereof
CN112105689A (en) * 2018-04-16 2020-12-18 布拉斯科有限公司 Bio-based elastomeric EVA compositions, and articles and methods thereof
CN112239575A (en) * 2020-10-09 2021-01-19 东莞铧冠橡塑制品有限公司 Sponge rubber and preparation method and application thereof
WO2021048634A1 (en) * 2019-09-11 2021-03-18 Braskem S.A. Very soft eva foam and methods thereof
CN113024938A (en) * 2021-04-01 2021-06-25 石家庄启宏新材料制品有限公司 Flame-retardant foam material and preparation method thereof
CN113214559A (en) * 2021-03-09 2021-08-06 福州友星生物科技有限公司 Mildew-proof antibacterial EVA foaming material and production process thereof
CN115449147A (en) * 2022-09-22 2022-12-09 青岛昶捷科技有限公司 Ultra-light foaming material and preparation method thereof
CN117050419A (en) * 2023-09-22 2023-11-14 饭田（佛山）橡塑有限公司 Resin foaming sound-proof material, preparation method and application

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CN1626574A (en) * 2003-12-08 2005-06-15 厦门市同安德阳鞋业有限公司 Fragrance CVA foaming material in use for shoemaking and preparing technique
CN104893225A (en) * 2015-06-25 2015-09-09 安踏（中国）有限公司 Foam composite formula for soles

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Publication number Priority date Publication date Assignee Title
CN108503960A (en) * 2018-04-11 2018-09-07 东莞市福斯特橡塑科技有限公司 A kind of ethylene-vinyl acetate Special wear-resistant agent masterbatch particles and its production technology
CN112105689A (en) * 2018-04-16 2020-12-18 布拉斯科有限公司 Bio-based elastomeric EVA compositions, and articles and methods thereof
CN108503945A (en) * 2018-04-24 2018-09-07 万家鑫（福建）皮塑鞋材有限公司 A kind of highway and freeway guardrail expanded material and preparation method thereof
CN108559170A (en) * 2018-05-11 2018-09-21 芜湖风雪橡胶有限公司 Eva shoe material masterbatch and preparation method thereof
CN108841070A (en) * 2018-05-17 2018-11-20 泉州师范学院 A kind of EVA composition, foam and preparation method thereof
CN108858953A (en) * 2018-06-11 2018-11-23 泉州师范学院 A kind of radio frequency foaming method of EVA material
CN108948506A (en) * 2018-06-28 2018-12-07 东莞兆阳兴业塑胶制品有限公司 A kind of rubber plastic foam material and preparation method thereof being easily punched
CN109337182A (en) * 2018-08-30 2019-02-15 福建豪威节能科技发展有限公司 A kind of lightweight high-elastic wear-resistant rubber and plastic crosslinked of the EVA containing regeneration
CN109438821A (en) * 2018-09-28 2019-03-08 陆芊芊 A kind of high thermal conductivity graphene modified EVA foamed material and preparation method thereof
CN109438821B (en) * 2018-09-28 2021-06-01 陆芊芊 High-thermal-conductivity graphene modified EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN109132137A (en) * 2018-10-19 2019-01-04 扬中市华龙橡塑电器有限公司 A kind of EVA tool box lining
CN109555292A (en) * 2018-10-30 2019-04-02 常州浩瀚万康纳米材料有限公司 A kind of improvement floor crashing sound insulation cushion blocking and preparation method thereof
CN109988356A (en) * 2019-04-09 2019-07-09 黎明职业大学 A kind of multifunctional composite powder body modified EVA composite foam material and preparation method thereof
CN110092978A (en) * 2019-05-23 2019-08-06 福建五持恒科技发展有限公司 Graphene regenerates EVA foamed shoe-pad and preparation method thereof
CN110372950A (en) * 2019-07-24 2019-10-25 温州市宜和鞋材有限公司 A kind of antibacterial and mouldproof footwear material and preparation method of shoe pads
US11780979B2 (en) 2019-09-11 2023-10-10 Braskem S.A. Very soft EVA foam and methods thereof
WO2021048634A1 (en) * 2019-09-11 2021-03-18 Braskem S.A. Very soft eva foam and methods thereof
CN110591214A (en) * 2019-09-19 2019-12-20 泉州师范学院 Fluorine-containing organic montmorillonite modified EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN110591214B (en) * 2019-09-19 2022-03-11 泉州师范学院 Fluorine-containing organic montmorillonite modified EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN110577696B (en) * 2019-09-19 2022-03-15 泉州师范学院 High-wear-resistance EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN110577696A (en) * 2019-09-19 2019-12-17 泉州师范学院 High-wear-resistance EVA (ethylene-vinyl acetate) foam material and preparation method thereof
CN110669278A (en) * 2019-11-17 2020-01-10 斯莱达医疗用品（惠州）有限公司 Pipe for effectively reducing condensate water of breathing pipeline
CN110982166A (en) * 2019-12-21 2020-04-10 惠安煜龙鞋业有限公司 High-elasticity wear-resistant EVA (ethylene-vinyl acetate copolymer) foamed shoe material and preparation method thereof
CN112239575A (en) * 2020-10-09 2021-01-19 东莞铧冠橡塑制品有限公司 Sponge rubber and preparation method and application thereof
CN113214559A (en) * 2021-03-09 2021-08-06 福州友星生物科技有限公司 Mildew-proof antibacterial EVA foaming material and production process thereof
CN113024938A (en) * 2021-04-01 2021-06-25 石家庄启宏新材料制品有限公司 Flame-retardant foam material and preparation method thereof
CN115449147A (en) * 2022-09-22 2022-12-09 青岛昶捷科技有限公司 Ultra-light foaming material and preparation method thereof
CN115449147B (en) * 2022-09-22 2023-08-22 青岛昶捷科技有限公司 Ultralight foaming material and preparation method thereof
CN117050419A (en) * 2023-09-22 2023-11-14 饭田（佛山）橡塑有限公司 Resin foaming sound-proof material, preparation method and application
CN117050419B (en) * 2023-09-22 2024-02-20 饭田（佛山）橡塑有限公司 Resin foaming sound-proof material, preparation method and application

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Application publication date: 20180223