CN105175879A - High elasticity EVA material and preparation method thereof - Google Patents
High elasticity EVA material and preparation method thereof Download PDFInfo
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- CN105175879A CN105175879A CN201510565907.7A CN201510565907A CN105175879A CN 105175879 A CN105175879 A CN 105175879A CN 201510565907 A CN201510565907 A CN 201510565907A CN 105175879 A CN105175879 A CN 105175879A
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- eva
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- 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
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a high elasticity EVA material. The high elasticity EVA material is mainly prepared by mixing and foaming EVA, POE, EPDM, talcum powder, an odorless cross-linking agent, stearic acid, active zinc oxide and a foaming agent. The high elasticity EVA material comprises the following components in parts by weight: 20 to 40 parts of EVA, 10 to 20 parts of POE, 3 to 8 parts of EPDM, 10 to 20 parts of talcum powder, 0.2 to 0.5 parts of odorless cross-linking agent, 0.3 to 0.8 parts of stearate, 0.5 to 1 part of active zinc oxide and 1 to 5 parts of foaming agent. The preparation method of the high elasticity EVA material mainly comprises three steps of internal mixing, open mixing and oil pressing, and the EVA high elasticity material with the hardness of 15 to 20 degrees is finally obtained by virtue of foaming and vulcanization. The obtained EVA high elasticity sheet material is modified by utilizing rubber elastomer in a blending manner and has advantages of small hardness, high elasticity, good dimensional stability, good mechanical performance, long service life and the like.
Description
Technical field
The present invention relates to organic polymer material field, more specifically to a kind of snappiness EVA material and preparation method thereof.
Background technology
Ethylene-vinyl acetate copolymer is called for short EVA, and general vinyl acetate between to for plastic (VA) content is 5% ~ 40%.Compared with polyethylene, EVA owing to introducing Vinyl Acetate Monomer in molecular chain, thus reduce high-crystallinity, improve snappiness, shock resistance, filler intermiscibility and heat seal performance, be widely used in the fields such as foaming shoe material, functional greenhouse film, packing film, hot melt adhesive, electric wire and toy.The topmost Application Areas of Xie Caishi China EVA resin.In the EVA resin that footwear material uses, vinyl acetate content is generally 15% ~ 22%.Because the blended foaming product of EVA resin has the performances such as softness, good springiness, resistance to chemical attack, be therefore widely used in medium-to-high grade sneakers, climbing boot, slippers, the sole of sandals and interior material.The Shuande in China Guangdong, Zhong Shan, the Wenzhou in Jinjiang in Fujian, Quanzhou and Zhejiang is the major production base of China's footwear industry, consumes a large amount of EVA resin products every year.China's foaming shoe materials in 1999 and field of shock absorption consume EVA resin altogether and are about 150kt.
But at present, for the rubber plastic foam material of sole, there is following shortcoming: 1) than great, the sensation of dress is comparatively heavy more; 2) wear no resistance, work-ing life is shorter, is not suitable for some wear resistancies and requires high footwear; 3) poor flexibility, the situation comparatively hard on road surface or inapplicable to the occasion that aeroelastic requirements is higher.
Summary of the invention
The object of the invention is to provide that a kind of hardness is little, elasticity is high, good stability of the dimension, mechanical property are good, the EVA material of long service life and preparation method thereof.
The technical scheme that technical solution problem of the present invention adopts is: a kind of snappiness EVA material, described snappiness EVA material forms through mixing, foaming primarily of EVA, POE, EPDM, talcum powder, tasteless linking agent, stearic acid, active zinc flower, whipping agent, the content of described each component, is by weight:
Further, the content of described each component, is by weight:
Preferably, the content of described each component, is by weight: EVA30 part, POE15 part, EPDM5 part, talcum powder 15 parts, tasteless linking agent 0.3 part, stearic acid 0.5 part, active zinc flower 0.7 part, whipping agent 3 parts.
A preparation method for snappiness EVA material, described preparation method mainly comprises the steps:
(1) banburying: first the EVA in starting material, POE, EPDM, these four kinds of materials of talcum powder are thrown in and carry out banburying to Banbury mixer; When the temperature in Banbury mixer is increased to 112 ~ 116 DEG C, tasteless for remaining auxiliary agent linking agent, stearic acid, active zinc flower, whipping agent are thrown in Banbury mixer; Then continue banburying heat up, in temperature-rise period temperature often raise 5 DEG C just carry out stirring, cleaning dust; Until when temperature rises to about 135 DEG C, terminate banburying;
(2) refining is opened: put in mill by the material in above-mentioned steps (1) after Banbury mixer banburying to carry out out refining and break paint, original depth is about 3mm, and the temperature of mill controls at about 45 DEG C; Banburying material is broken enamel-cover through three and makes a call to three times, then specification slice on request, the slice thickness of EVA sheet is about 1mm;
(3) oil pressure: by above-mentioned steps (2) after the EVA sheet of film-discharging machine slice is weighed, proceed on the mould of oil press, the initial temperature of die of hydraulic machine is set to 170 DEG C; Start to foam, foamed time is 50 minutes, and during foaming, the die temperature of oil press controls between 170 ~ 175 DEG C; The high-elastic sheet material of EVA that hardness is 15 ~ 20 degree is finally obtained after foaming, sulfuration.
The invention has the beneficial effects as follows: the high-elastic sheet material of the EVA that the present invention obtains utilizes rubber elastomer blending and modifying that there is the advantages such as hardness is little, elasticity is high, good stability of the dimension, mechanical property are good, long service life; In addition, the linking agent that this product uses is tasteless linking agent, and the EVA shoe material that production obtains is tasteless nontoxic, meets the requirement of health, environmental protection.
Embodiment
Below in conjunction with embodiment, illustrate the present invention further, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
Embodiment 1
A kind of snappiness EVA material, described snappiness EVA material forms through mixing, foaming primarily of EVA, POE, EPDM, talcum powder, tasteless linking agent, stearic acid, active zinc flower, whipping agent, the content of described each component, is by weight: EVA20 part, POE10 part, EPDM3 part, talcum powder 10 parts, tasteless linking agent 0.2 part, stearic acid 0.3 part, active zinc flower 0.5 part, whipping agent 2 parts.
The preparation method of above-mentioned snappiness EVA material, mainly comprises the steps:
(1) banburying: first the EVA in starting material, POE, EPDM, these four kinds of materials of talcum powder are thrown in and carry out banburying to Banbury mixer; When the temperature in Banbury mixer is increased to 112 ~ 116 DEG C, tasteless for remaining auxiliary agent linking agent, stearic acid, active zinc flower, whipping agent are thrown in Banbury mixer; Then continue banburying heat up, in temperature-rise period temperature often raise 5 DEG C just carry out stirring, cleaning dust; Until when temperature rises to about 135 DEG C, terminate banburying;
(2) refining is opened: put in mill by the material in above-mentioned steps (1) after Banbury mixer banburying to carry out out refining and break paint, original depth is about 3mm, and the temperature of mill controls at about 45 DEG C; Banburying material is broken enamel-cover through three and makes a call to three times, then specification slice on request, the slice thickness of EVA sheet is about 1mm;
(3) oil pressure: by above-mentioned steps (2) after the EVA sheet of film-discharging machine slice is weighed, proceed on the mould of oil press, the initial temperature of die of hydraulic machine is set to 170 DEG C; Start to foam, foamed time is 50 minutes, and during foaming, the die temperature of oil press controls between 170 ~ 175 DEG C; The high-elastic sheet material of EVA that hardness is 15 ~ 20 degree is finally obtained after foaming, sulfuration.
Embodiment 2
A kind of snappiness EVA material, described snappiness EVA material forms through mixing, foaming primarily of EVA, POE, EPDM, talcum powder, tasteless linking agent, stearic acid, active zinc flower, whipping agent, the content of described each component, is by weight: EVA30 part, POE15 part, EPDM5 part, talcum powder 15 parts, tasteless linking agent 0.3 part, stearic acid 0.5 part, active zinc flower 0.7 part, whipping agent 3 parts.
The preparation method of above-mentioned snappiness EVA material is with embodiment 1.
Embodiment 3
A kind of snappiness EVA material, described snappiness EVA material forms through mixing, foaming primarily of EVA, POE, EPDM, talcum powder, tasteless linking agent, stearic acid, active zinc flower, whipping agent, the content of described each component, is by weight: EVA40 part, POE20 part, EPDM8 part, talcum powder 20 parts, tasteless linking agent 0.5 part, stearic acid 0.8 part, active zinc flower 1 part, whipping agent 5 parts.
The preparation method of above-mentioned snappiness EVA material is with embodiment 1.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; person of ordinary skill in the field should understand; any improvement in the present invention; to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention; all belong to category of the present invention, scope of patent protection of the present invention should be defined by the claims.
Claims (4)
1. a snappiness EVA material, it is characterized in that, described snappiness EVA material forms through mixing, foaming primarily of EVA, POE, EPDM, talcum powder, tasteless linking agent, stearic acid, active zinc flower, whipping agent, and the content of described each component, is by weight:
2. a kind of snappiness EVA material according to claim 1, is characterized in that, the content of described each component, is by weight:
3. a kind of snappiness EVA material according to claim 2, it is characterized in that, the content of described each component, is by weight: EVA30 part, POE15 part, EPDM5 part, talcum powder 15 parts, tasteless linking agent 0.3 part, stearic acid 0.5 part, active zinc flower 0.7 part, whipping agent 3 parts.
4. a preparation method for snappiness EVA material as claimed in any of claims 1 to 3, is characterized in that, described preparation method mainly comprises the steps:
(1) banburying: first the EVA in starting material, POE, EPDM, these four kinds of materials of talcum powder are thrown in and carry out banburying to Banbury mixer; When the temperature in Banbury mixer is increased to 112 ~ 116 DEG C, tasteless for remaining auxiliary agent linking agent, stearic acid, active zinc flower, whipping agent are thrown in Banbury mixer; Then continue banburying heat up, in temperature-rise period temperature often raise 5 DEG C just carry out stirring, cleaning dust; Until when temperature rises to about 135 DEG C, terminate banburying;
(2) refining is opened: put in mill by the material in above-mentioned steps (1) after Banbury mixer banburying to carry out out refining and break paint, original depth is about 3mm, and the temperature of mill controls at about 45 DEG C; Banburying material is broken enamel-cover through three and makes a call to three times, then specification slice on request, the slice thickness of EVA sheet is about 1mm;
(3) oil pressure: by above-mentioned steps (2) after the EVA sheet of film-discharging machine slice is weighed, proceed on the mould of oil press, the initial temperature of die of hydraulic machine is set to 170 DEG C; Start to foam, foamed time is 50 minutes, and during foaming, the die temperature of oil press controls between 170 ~ 175 DEG C; The high-elastic sheet material of EVA that hardness is 15 ~ 20 degree is finally obtained after foaming, sulfuration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510565907.7A CN105175879A (en) | 2015-08-21 | 2015-08-21 | High elasticity EVA material and preparation method thereof |
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| CN201510565907.7A CN105175879A (en) | 2015-08-21 | 2015-08-21 | High elasticity EVA material and preparation method thereof |
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| CN105175879A true CN105175879A (en) | 2015-12-23 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524359A (en) * | 2016-01-21 | 2016-04-27 | 苏州市景荣科技有限公司 | Wear-resistant and heat-resistant EPDM (ethylene-propylene-diene monomer) sole material and preparation method thereof |
| CN105542295A (en) * | 2016-01-20 | 2016-05-04 | 苏州市景荣科技有限公司 | Antibacterial and anti-inflammation EVA shoe material and preparation method thereof |
| CN105802005A (en) * | 2016-06-06 | 2016-07-27 | 苏州锦腾电子科技有限公司 | High-elasticity environment-friendly plastic material and preparation method thereof |
| CN107434874A (en) * | 2017-08-31 | 2017-12-05 | 成都卡美奇鞋业有限公司 | Sole material with high-wearing feature |
| CN108485052A (en) * | 2018-04-28 | 2018-09-04 | 浙江隆源高分子科技有限公司 | A kind of EVA foams and preparation method |
| CN108997661A (en) * | 2018-09-20 | 2018-12-14 | 安踏（中国）有限公司 | A kind of sport footwear high rebound foamed material, preparation method and its application |
| CN109824969A (en) * | 2019-02-12 | 2019-05-31 | 广东浮动全球智能科技有限公司 | A kind of multifunctional integrated foaming life jacket and its processing unit (plant) and processing method |
| CN109824972A (en) * | 2019-03-08 | 2019-05-31 | 安踏（中国）有限公司 | Bottom material and preparation method thereof in a kind of environment-friendly foaming |
| CN110408115A (en) * | 2019-07-25 | 2019-11-05 | 莆田星昌鞋业有限公司 | The high-elastic resistance to wrinkle sole of one kind and its processing method |
| CN110498974A (en) * | 2019-08-08 | 2019-11-26 | 许纯青 | A kind of light and soft bullet novel rubber plastic composite material |
| CN113265099A (en) * | 2021-05-19 | 2021-08-17 | 软慕新材料科技(苏州)有限公司 | Method for preparing foamed shoe material by blending cork powder with EVA |
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| CN101805475A (en) * | 2010-04-26 | 2010-08-18 | 泰亚鞋业股份有限公司 | Formula of soles of PU-simulated foaming sneakers through injection and manufacturing method |
| CN103289179A (en) * | 2013-06-18 | 2013-09-11 | 新侨伟（福建）鞋服有限公司 | High-elasticity sneaker air cushion sole and production method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542295A (en) * | 2016-01-20 | 2016-05-04 | 苏州市景荣科技有限公司 | Antibacterial and anti-inflammation EVA shoe material and preparation method thereof |
| CN105524359A (en) * | 2016-01-21 | 2016-04-27 | 苏州市景荣科技有限公司 | Wear-resistant and heat-resistant EPDM (ethylene-propylene-diene monomer) sole material and preparation method thereof |
| CN105524359B (en) * | 2016-01-21 | 2018-01-16 | 苏州市景荣科技有限公司 | A kind of EPDM material for sole of shoe of antiwear heat resisting and preparation method thereof |
| CN105802005A (en) * | 2016-06-06 | 2016-07-27 | 苏州锦腾电子科技有限公司 | High-elasticity environment-friendly plastic material and preparation method thereof |
| CN107434874A (en) * | 2017-08-31 | 2017-12-05 | 成都卡美奇鞋业有限公司 | Sole material with high-wearing feature |
| CN108485052A (en) * | 2018-04-28 | 2018-09-04 | 浙江隆源高分子科技有限公司 | A kind of EVA foams and preparation method |
| CN108997661A (en) * | 2018-09-20 | 2018-12-14 | 安踏（中国）有限公司 | A kind of sport footwear high rebound foamed material, preparation method and its application |
| CN109824969A (en) * | 2019-02-12 | 2019-05-31 | 广东浮动全球智能科技有限公司 | A kind of multifunctional integrated foaming life jacket and its processing unit (plant) and processing method |
| CN109824972A (en) * | 2019-03-08 | 2019-05-31 | 安踏（中国）有限公司 | Bottom material and preparation method thereof in a kind of environment-friendly foaming |
| CN110408115A (en) * | 2019-07-25 | 2019-11-05 | 莆田星昌鞋业有限公司 | The high-elastic resistance to wrinkle sole of one kind and its processing method |
| CN110498974A (en) * | 2019-08-08 | 2019-11-26 | 许纯青 | A kind of light and soft bullet novel rubber plastic composite material |
| CN113265099A (en) * | 2021-05-19 | 2021-08-17 | 软慕新材料科技(苏州)有限公司 | Method for preparing foamed shoe material by blending cork powder with EVA |
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Application publication date: 20151223 |