CN103910926B - 一种高弹性eva鞋底材料及其制备方法 - Google Patents

一种高弹性eva鞋底材料及其制备方法 Download PDF

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CN103910926B
CN103910926B CN201410157637.1A CN201410157637A CN103910926B CN 103910926 B CN103910926 B CN 103910926B CN 201410157637 A CN201410157637 A CN 201410157637A CN 103910926 B CN103910926 B CN 103910926B
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葛胜超
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NANJING JIHUA NO.5302 GARMENTS AND OUTFITS CO., LTD.
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0846Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853Vinylacetate
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/02Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04Plastics, rubber or vulcanised fibre
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
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    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract

本发明公开了一种高弹性EVA鞋底材料及其制备方法,该材料包括如下组分:EVA7350?20~40份;EVA7470?30~50份;弹性体5~15份;POE?5~15份;填充剂5~15份;发泡剂1~5份;偶联剂0.2~0.6份;锌氧粉0.5~1.5份;硬脂酸0.1~0.5份以重量份计。其制备方法包括了密炼、开炼、造粒、冷却、发泡、二次发泡成型等步骤。本发明所述材料是以两种不同VA含量的EVA为底料加入各种添加剂和弹性体经过发泡制成的,可以大幅度提高鞋子的舒适度,弹性。

Description

一种高弹性EVA鞋底材料及其制备方法
技术领域
本发明涉及一种EVA(乙烯-醋酸乙烯共聚物)鞋底材料,尤其涉及一种高弹性EVA鞋底材料。
背景技术
目前人们对于鞋底材料尤其是运动鞋的鞋底材料的弹性和舒适性要求越来越高,而现有的弹性鞋底材料已经不能满足这方面的需求。
现有的鞋底材料大多是在EVA底料加入各类添加剂再经过发泡或者二次发泡制成,需要进一步改进。
发明内容
发明目的:本发明的目的在于针对现有技术的不足,提供一种舒适度高弹性强的高弹性EVA鞋底材料及其制备方法。
技术方案:本发明所述的高弹性EVA鞋子材料包括如下组分:
EVA735020~40份;
EVA747030~50份;
弹性体5~15份;
POE5~15份;
填充剂5~15份;
发泡剂1~5份;
偶联剂0.2~0.6份;
锌氧粉0.5~1.5份;
硬脂酸0.1~0.5份
以重量份计。
优选地,所述的高弹性EVA鞋底材料,包括如下组分:
EVA735030份;
EVA747040份;
弹性体10份;
POE10份;
填充剂10份;
发泡剂3份;
偶联剂0.4份;
锌氧粉1份;
硬脂酸0.3份。
本发明制备方法是将EVA7350、EVA7470、弹性体、POE、填充剂、发泡剂、偶联剂、锌氧粉、硬脂酸按照重量份配好送入密炼机密炼,温度控制在105℃~115℃,气压0.65~0.8kg,密炼时间10~14分钟,翻料6次;将密炼所得材料混合物送入开炼机开炼,开炼时温度控制80℃~90℃,15mm2次,3mm1次,1mm1次;造粒过程中,造粒机温度80℃~85℃,冷却水保持通畅;经过步骤③出料后冷却12小时再送入发泡机;将所得材料混合物送入发泡机发泡,发泡机台温度170℃~180℃,压力165~175kg,时间8~12分钟;最后再将材料混合物送入MD机,MD机台温度控制在180℃~190℃,压力90-110kg,加热400秒钟,冷却400秒钟后得到所述的高弹性EVA鞋底材料。
有益效果:本发明所述材料是以两种不同VA含量的EVA为底料加入各种添加剂和弹性体经过发泡制成的,可以大幅度提高鞋子的舒适度,弹性。
具体实施方式
下面对本发明技术方案进行详细说明,但是本发明的保护范围不局限于所述实施例。
本发明实施例中使用的原料均为市售产品,来源如下:EVA7350(东莞凯瑞塑胶原料有限公司产品18%VA含量);EVA7470(东莞凯瑞塑胶原料有限公司26%VA含量);弹性体(泉州远舰化工有限公司产品热塑性弹性体0005);POE(东莞市银洋塑胶贸易有限公司产品);填充剂(东莞市银洋塑胶贸易有限公司产品橡胶填充剂);发泡剂(上海杰余工贸有限公司产品EVA发泡剂);偶联剂(南京向前化工有限公司产品KH-570);锌氧粉(广州拓亿贸易有限公司产品间接法99.7%锌氧粉);硬脂酸(广州市天河区大观智业化工产品1801硬脂酸)。
实施例1:将以下重量份计的原料配好送入密炼机密炼:
EVA735020份;
EVA747030份;
弹性体5份;
POE5份;
填充剂5份;
发泡剂1份;
偶联剂0.2份;
锌氧粉0.5份;
硬脂酸0.1份,
密炼温度控制在105℃,气压0.65kg,密炼时间10分钟,翻料6次;将密炼所得材料混合物送入开炼机开炼,开炼时温度控制80℃,15mm2次,3mm1次,1mm1次;造粒过程中,造粒机温度80℃,冷却水保持通畅;经过步骤③出料后冷却12小时再送入发泡机;将所得材料混合物送入发泡机发泡,发泡机台温度170℃,压力165kg,时间8分钟;最后再将材料混合物送入MD机,MD机台温度控制在180℃,压力90kg,加热400秒钟,冷却400秒钟后得到所述的高弹性EVA鞋底材料。
实施例2:将以下重量份计的原料配好送入密炼机密炼:
EVA735040份;
EVA747050份;
弹性体15份;
POE15份;
填充剂15份;
发泡剂5份;
偶联剂0.6份;
锌氧粉1.5份;
硬脂酸0.5份,
密炼温度控制在115℃,气压0.8kg,密炼时间14分钟,翻料6次;将密炼所得材料混合物送入开炼机开炼,开炼时温度控制90℃,15mm2次,3mm1次,1mm1次;造粒过程中,造粒机温度85℃,冷却水保持通畅;经过步骤③出料后冷却12小时再送入发泡机;将所得材料混合物送入发泡机发泡,发泡机台温度180℃,压力175kg,时间12分钟;最后再将材料混合物送入MD机,MD机台温度控制在190℃,压力110kg,加热400秒钟,冷却400秒钟后得到所述的高弹性EVA鞋底材料。
实施例3:将以下重量份计的原料配好送入密炼机密炼:
EVA735030份;
EVA747040份;
弹性体10份;
POE10份;
填充剂10份;
发泡剂3份;
偶联剂0.4份;
锌氧粉1份;
硬脂酸0.3份,
密炼温度控制在110℃,气压0.8kg,密炼时间12分钟,翻料6次;将密炼所得材料混合物送入开炼机开炼,开炼时温度控制90℃,15mm2次,3mm1次,1mm1次;造粒过程中,造粒机温度82℃,冷却水保持通畅;经过步骤③出料后冷却12小时再送入发泡机;将所得材料混合物送入发泡机发泡,发泡机台温度175℃,压力170kg,时间10分钟;最后再将材料混合物送入MD机,MD机台温度控制在185℃,压力100kg,加热400秒钟,冷却400秒钟后得到所述的高弹性EVA鞋底材料。
本发明高弹性EVA鞋底材料与现有EVA鞋底性能比较结果见表1。
表1实施例1-3与现有EVA材料产品性能检测结果。
产品 抗拉强度(MPa) 扯断伸长率(%) 回弹率(%)
现有EVA材料 20 400 50
实施例1 24.5 630 58
实施例2 23 628 57
实施例3 25 650 61
如上所述,尽管参照特定的优选实施例已经表示和表述了本发明,但其不得解释为对本发明自身的限制。在不脱离所附权利要求定义的本发明的精神和范围前提下,可对其在形式上和细节上作出各种变化。

Claims (2)

1.一种高弹性EVA鞋底材料,其特征在于由如下组分构成:
EVA735020~40份;
EVA747030~50份;
弹性体5~15份;
POE5~15份;
填充剂5~15份;
发泡剂1~5份;
偶联剂0.2~0.6份;
锌氧粉0.5~1.5份;
硬脂酸0.1~0.5份;
以重量份计;
由以上组分制备高弹性EVA鞋底材料的方法,包括以下步骤:
①密炼:将各组分按重量份配好送入密炼机密炼,温度控制在105℃~115℃,气压0.65~0.8kg,密炼时间10~14分钟;
②开炼:将密炼所得材料混合物送入开炼机开炼,开炼时温度控制80℃~90℃,15mm2次,3mm1次,1mm1次;
③造粒:造粒机温度80℃~85℃,冷却水保持通畅;
④冷却:经过步骤③出料后冷却12小时再送入发泡机;
⑤发泡:将所得材料混合物送入发泡机发泡,发泡机台温度170℃~180℃,压力165~175kg,时间8~12分钟;
⑥二次发泡成型:MD机台温度控制在180℃~190℃,压力90-110kg,加热400秒钟,冷却400秒钟。
2.根据权利要求1所述的高弹性EVA鞋底材料,其特征在于由如下组分构成:
EVA735030份;
EVA747040份;
弹性体10份;
POE10份;
填充剂10份;
发泡剂3份;
偶联剂0.4份;
锌氧粉1份;
硬脂酸0.3份。
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CN105037902B (zh) * 2014-12-02 2017-09-29 广东国立科技股份有限公司 一种高弹耐磨eva及其制备方法和应用
CN104788741B (zh) * 2015-03-18 2017-01-25 南京东亚橡塑制品有限公司 一种天然胶和eva组合的复合鞋底及其制备工艺
CN105199215A (zh) * 2015-10-27 2015-12-30 特步(中国)有限公司 一种高回弹的动力巢中底材料
CN105400056A (zh) * 2015-11-18 2016-03-16 吴江市风尚鞋厂 一种橡塑微孔鞋材及其制备方法
CN107236183B (zh) * 2017-06-07 2018-03-27 界首市盛泽鞋业有限公司 一种耐温耐磨eva材料鞋底的制备方法
CN107118426A (zh) * 2017-06-12 2017-09-01 江苏天有贸易有限公司 Eva/橡胶共混物鞋底材配方及其制备方法
CN107434873A (zh) * 2017-07-03 2017-12-05 三六度(中国)有限公司 一种夜光中底用组合物及其应用
CN107522937A (zh) * 2017-09-28 2017-12-29 鹤山市亿田路鞋业有限公司 抗菌除臭的eva鞋底发泡材料及其制备方法
CN109096587A (zh) * 2018-06-29 2018-12-28 东莞市超伟复合材料制品有限公司 一种高分子气孔发泡材料及其生产工艺
CN109824967A (zh) * 2019-02-01 2019-05-31 东莞市明晖鞋材有限公司 一种耐磨弹性体鞋材配方
CN110423399A (zh) * 2019-07-25 2019-11-08 福建省莆田市双源鞋业有限公司 一种防臭鞋底及其加工方法

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