CN104479212A - 一种复合发泡材料注射中底及其制造方法 - Google Patents
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Abstract
本发明公开了一种复合注射发泡橡胶中底材料及其制造方法,按重量比,其原料包括:EVAC1(VA26-28%):25-35份,EVAC2(VA40%):5-15份,OBCS:25-35份,POE:25-35份;耐磨剂:3-5份,纳米碳酸钙:2-4份,ZNO:0.8-1.0份,硬脂酸锌:0.7-0.8份,R-103:1-2份,著色剂:5-10份,硬脂酸:0.4-0.5份,DCP:1.1-1.2份,AC:0.8-0.85份。本发明材料可直接用EVA注射工艺。
Description
技术领域
本发明涉及一种鞋制造领域,具体涉及新型高分子复合发泡材料注射中底及制造方法。
背景技术
鞋底的构造相当复杂,就广义而言,可包括外底、中底与鞋跟等所有构成底部的材料。球鞋中底中,PHYLON中底和EVA中底最常见。现在鞋子中底用的最多的是PHYLON中底,PHYLON最大的特点就是轻便,弹性好,具有很好的缓震性能,PHYLON被称作二次发泡。EVA中底也很轻,但是缓震性能和弹性方面远远的比不上PHYLON中底,造价也比PHYLON要低很多,EVA中底被称为一次发泡。
目前市场发泡橡胶材料只能用专用橡胶注射机注射,专用注射机价格昂贵,工艺复杂。
发明内容
本发明的目的在于提供一种新型高分子复合发泡材料注射发泡橡胶大底及制造方法,以解决现有技术中存在的上述问题。
本发明提供的技术方案如下:
一种复合发泡材料注射发泡橡胶大底,按重量比,其原料包括:
在较佳的实施例中,一种复合发泡材料注射中底按重量比,其原料包括:
在另一较佳的实施例中,一种复合发泡材料注射中底,按重量比,其原料包括:
在再一较佳的实施例中,一种复合发泡材料注射中底,按重量比,其原料包括:
其中,EVAc 1(VA26-28%)为乙烯-醋酸乙烯共聚物,VA为醋酸乙烯含量,优选杜邦EVA265;
EVAc 2(VA40%)优选采用杜邦EVA 40W,
OBCS为聚烯烃嵌段式共聚物,优选杜邦Infuse 9107;
POE为乙烯丁烯共聚物,优选杜邦ENGAGE 7467;
耐磨剂优选为迈图公司MT-5400,
R-103为杜邦的二氧化钛,
著色剂为EVA色粒,优选清丰/色真/万泰等公司生产。
AC为偶氮发泡剂,优选海虹AC6000H。
前述的复合发泡材料注射中底的制造方法,包括如下步骤:第一步:备料,将称好的主材EVAC、OBCS、POE、填充材料,摧化剂、著色剂、润滑剂按比例投放密炼机混炼6-8分钟,温度升温至95-100度时加入交联剂和发泡剂,混炼1-2分钟,温度110度出料投入开炼机,先翻厚一次厚度3-4mm(调整开炼机两个滚轮间的间距,使物料出来的厚度为1-1.5mm,此为束薄,调整到3-4mm,使物料出来的厚度为3-4mm,此为翻厚),再束薄二次,厚度1-1.5mm,再翻厚一次,厚度3-4mm,再投入单螺杆挤出造粒机,造粒机模头温度80度,炮管温度75度,粒径2.5-3mm,造好的粒料需室温静置2小时以上,
第二步:粒料干燥,将静置好的颗粒放入干燥桶内干燥1小时以上,干燥温度45-50度,
第三步:粒料由注射机自动抽入射枪按设定好的重量注射,射枪温度:80、82、84、88±3度(同一支射枪分为4段,每段设定不同的温度这些温度),射速23、25、25、25、23%(同一支射枪中的活塞分为5步连续不间断的推进),射压90-95%,模具温度:175±3度,硫化时间300±20秒,定型烘箱温度:90、80、70、60、50±5度(5节烘箱连接为一组,逐步降温,每一节约6分钟左右),定型时间30分钟以上。
本发明材料特点如下:
1.质地与普通橡胶极度相似,可与普通橡胶媲美,
2.目前市场发泡橡胶材料只能用专用橡胶注射机注射,专用注射机价格昂贵,工艺复杂,而本材料直接用EVA注射工艺即可,可用普通EVA注射机进行注射,注射发泡倍率1.15-1.20%。
3.比重轻,比重0.50-0.60g/cc;市场发泡橡胶比重只能控制在0.80-0.90g/cc。
4.DIN耐磨120m3以下,
5.抓地力强,有较好的止滑性能,
6.著色性佳,可调制各种颜色
7.市场发泡橡胶只能单双注射,本发明模具可开制一模多双;
具体实施方式
实施例1
一种复合发泡材料注射中底,按重量比,其原料包括:
第一步:将称好的主材(EVAC、OBCS、POE)、填充材料,摧化剂、著色剂、润滑剂按比例投放密炼机混炼7分钟,温度升温至100度时加入交联剂和发泡剂,混炼2分钟,温度110度出料投入开炼机,先翻厚一次厚度4mm,再束薄二次,厚度1.5mm,再翻厚一次,厚度4mm,再投入单螺杆挤出造粒机,造粒机模头温度80度,炮管温度75度,粒径3mm,造好的粒料需室温静置3小时,
第二步:粒料干燥,将静置好的颗粒放入干燥桶内干燥2小时,干燥温度50度,
第三步:粒料由注射机自动抽入射枪按设定好的重量注射,射枪温度:80、82、84、88±3度,射速23、25、25、25、23%,射压90-95%,模具温度:175±3度,硫化时间300±20秒,定型烘箱温度:90、80、70、60、50±5度,定型时间30分钟以上。
实施例2
一种复合发泡材料注射中底,按重量比,其原料包括:
制备方法参照实施例1
实施例3
一种复合发泡材料注射中底,按重量比,其原料包括:
制备方法参照实施例1
实施例1的产品性能见下表:
检测项目 | 结果 |
硬度℃ | 55 |
拉力强度MPa | 5.8 |
延伸率% | 385% |
撕裂强度kg/cm | 7.2 |
比重g/cc | 0.52 |
耐磨 | 103 |
Claims (5)
1.一种复合发泡材料注射中底,按重量比,其原料包括:
2.一种复合发泡材料注射中底按重量比,其原料包括:
3.一种复合发泡材料注射中底,按重量比,其原料包括:
4.一种复合发泡材料注射中底,按重量比,其原料包括:
5.如权利要求1至4任一项所述的复合发泡材料注射中底的制造方法,包括如下步骤:
第一步:将称好的主材EVAC、OBCS、POE、填充材料,催化剂、著色剂、润滑剂按比例投放密炼机混炼6-8分钟,温度升温至95-100度时加入交联剂和发泡剂,混炼1-2分钟,温度105-115度出料投入开炼机,先翻厚一次,厚度3-4mm,再束薄二次,每次厚度1-1.5mm,再翻厚一次,厚度3-4mm,再投入单螺杆挤出造粒机,造粒机模头温度75-85度,炮管温度70-80度,粒径2.5-3mm,造好的粒料室温静置2小时以上,
第二步:将静置好的颗粒放入干燥桶内干燥1小时以上,干燥温度45-50度,
第三步:粒料由注射机自动抽入射枪按设定好的重量注射,该射枪分为4段,每段设定不同的温度,四段的温度分别为:80、82、84、88±3度,同一支射枪中的活塞分为5步连续不间断的推进,射速分别为23、25、25、25、23%,射压90-95%,模具温度:175±3度,硫化时间300±20秒,5节烘箱连接为一组,逐步降温,定型烘箱温度:90、80、70、60、50±5度,每一节5-7分钟。
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CN105086497A (zh) * | 2015-09-10 | 2015-11-25 | 温岭市东亚塑胶有限公司 | 制作柔软高弹耐磨发泡鞋底的颗粒材料及其生产工艺 |
CN105585769A (zh) * | 2016-03-14 | 2016-05-18 | 福建省长立网络科技有限公司 | 一种高耐磨弹性发泡橡胶材料及其制备方法 |
CN106947151A (zh) * | 2017-01-18 | 2017-07-14 | 泉州嘉泰鞋业有限公司 | 一种复合发泡材料注射高反弹抗衰竭中底及其制造方法 |
CN107746482A (zh) * | 2017-01-18 | 2018-03-02 | 泉州嘉泰鞋业有限公司 | 橡胶微发泡注射大底及其制造方法 |
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 |
CN111320833A (zh) * | 2018-12-13 | 2020-06-23 | 泉州嘉泰鞋业有限公司 | 一种新型高分子复合发泡材料注射耐磨止滑中底及其制造方法 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105086497A (zh) * | 2015-09-10 | 2015-11-25 | 温岭市东亚塑胶有限公司 | 制作柔软高弹耐磨发泡鞋底的颗粒材料及其生产工艺 |
CN105585769A (zh) * | 2016-03-14 | 2016-05-18 | 福建省长立网络科技有限公司 | 一种高耐磨弹性发泡橡胶材料及其制备方法 |
CN106947151A (zh) * | 2017-01-18 | 2017-07-14 | 泉州嘉泰鞋业有限公司 | 一种复合发泡材料注射高反弹抗衰竭中底及其制造方法 |
CN107746482A (zh) * | 2017-01-18 | 2018-03-02 | 泉州嘉泰鞋业有限公司 | 橡胶微发泡注射大底及其制造方法 |
CN106947151B (zh) * | 2017-01-18 | 2018-08-10 | 泉州嘉泰鞋业有限公司 | 一种复合发泡材料注射高反弹抗衰竭中底及其制造方法 |
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 |
CN111320833A (zh) * | 2018-12-13 | 2020-06-23 | 泉州嘉泰鞋业有限公司 | 一种新型高分子复合发泡材料注射耐磨止滑中底及其制造方法 |
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