CN116925474A - 一种低压缩变形的发泡鞋底发泡材料及其制备方法 - Google Patents

一种低压缩变形的发泡鞋底发泡材料及其制备方法 Download PDF

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CN116925474A
CN116925474A CN202310823645.4A CN202310823645A CN116925474A CN 116925474 A CN116925474 A CN 116925474A CN 202310823645 A CN202310823645 A CN 202310823645A CN 116925474 A CN116925474 A CN 116925474A
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葛胜超
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Nanjing East Asia High Tech Materials Co ltd
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Abstract

本发明涉及发泡鞋底制备技术领域,且公开了一种低压缩变形的发泡鞋底发泡材料及其制备方法,该低压缩变形的发泡鞋底发泡材料及其制备方法,包括100~200份组份A和100~200份组份B,所述组份A以质量份包括:溴化丁基橡胶75~100份,弹性体材料40~50份,改性橡胶材质5~25份,和氟橡胶3~5份,氯丁橡胶5~10份,烯烃嵌段共聚物15~20份,乙烯共聚物10~30,EVA20~30份,组份B以质量份包括:低温发泡剂1.4~1.6份,交联剂0.7~0.8份,氧化锌0.7份。该低压缩变形的发泡鞋底发泡材料及其制备方法,通过设置改性橡塑材料、滑石粉、耐磨剂、氧化锌、架桥剂、发泡剂、石墨烯和氟橡胶等为原料进行制得耐磨鞋底材料,可以在具有超软回弹性能的同时具有高耐磨性能,进而可以提高鞋底的使用寿命。

Description

一种低压缩变形的发泡鞋底发泡材料及其制备方法
技术领域
本发明涉及发泡鞋底制备技术领域,具体为一种低压缩变形的发泡鞋底发泡材料及其制备方法。
背景技术
随着科技的不断发展与人们生活水平的不断提高,大家对于鞋制品的性能需求也在不断提升。鞋子作为一种保护人们的脚不受伤的工具,通常包括面料、里料、辅料以及底料(即鞋底材料)。其中,鞋底材料一般包括硬革、软革等天然底革,以及仿皮革、布、橡胶、塑料、橡塑合用材料、EVA、TPR、PHYLON、PU和弹性硬纸板等。EVA发泡材料由于密度低、弹性好、加工性能好等优点,广泛应用于鞋材领域,但也存在材料变形大、耐磨性能差等缺陷,而热塑性聚氨酯具有良好的机械性能、耐磨性、低温柔顺性以及黏合性等优点,恰好可与EVA形成性能互补优势,尤其适用于鞋底材料。聚氨酯由硬段和软段构成,分子链长短、单体种类、软硬段的比例等可变因素多,生产得到的热塑性聚氨酯牌号非常多,硬度范围非常宽,可以从50A到75D,其他撕裂强度、压缩变形等参数也相差巨大。
目前大多数的鞋底都是采用橡胶侧材质,但是,现有的鞋底材料在实际使用时存在以下不足:现有的鞋底材料耐磨性能并不是很好,当在一些石子路面上进行长时间行走时,进而可能会造成鞋底的底部磨损,进而会降低鞋子的使用寿命。
发明内容
本发明的目的在于提供一种低压缩变形的发泡鞋底发泡材料及其制备方法,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种低压缩变形的发泡鞋底发泡材料,包括100~200份组份A和100~200份组份B,所述组份A以质量份包括:溴化丁基橡胶75~100份,弹性体材料40~50份,改性橡胶材质5~25份,氯丁橡胶5~10份,烯烃嵌段共聚物15~20份,乙烯共聚物10~30,EVA20~30份,氟橡胶3~5份,所述组份B以质量份包括:低温发泡剂1.4~1.6份,交联剂0.7~0.8份,氧化锌0.7份,硬脂酸0.8份,流动剂0.6份,滑石粉12份,耐磨剂2~3份,架桥剂2~5份,发泡剂3~5,石墨烯1~3份,通过EVA、氯丁橡胶等共混,突破了只有低熔点聚氨酯才能用作EVA发泡改性材料的限制,而且本发明利用氯丁橡胶改善材料的气密性、结晶性材料增强泡孔壁的强度。
优选的,所述弹性体材料由热塑性聚烯烃40份。
优选的,所述热塑性聚烯烃室温的压缩歪值为15%以下。
优选的,所述低温发泡剂的分解温度为180℃以下。
优选的,所述改性橡塑材料按照重量份包括以下原料:丁腈橡胶5~6份、氟橡胶1~3份、乙丙橡胶2~5份、增塑剂6~8份、聚四氢呋喃醚二醇1~2份、聚丙二烯硅氧烷5~7份、聚异戊二烯6~10份、石墨烯1~3份、铜离子粉1~2份、空心陶瓷微球0.1~0.5份,通过设置化丁基橡胶,其还具有良好的耐化学腐蚀和耐老化性能,进而可以提高鞋底的使用寿命,通过热塑性聚烯烃改善发泡材料的压缩变形,再添加氯丁橡胶改性材料,进一步提高鞋底的压缩变形性能,基于此,同等压缩形变性能的发泡鞋底,本发明的发泡鞋底可以更薄,鞋底更轻量化,更佳环保。
优选的,所述发泡剂为水和偶氮二异丁腈按体积比为1:2~4组成的混合物,通过设置改性橡塑材料、滑石粉、耐磨剂、氧化锌、架桥剂、发泡剂、石墨烯等为原料进行制得耐磨鞋底材料,可以在具有超软回弹性能的同时具有高耐磨性能,进而可以提高鞋底的使用寿命。
一种低压缩变形的发泡鞋底发泡材料制备方法,制备步骤如下:
S1、将规定好重量的溴化丁基橡胶,弹性体材料,改性橡胶材质,氯丁橡胶,烯烃嵌段共聚物,乙烯共聚物,EVA,加入到混合机中,混合15min~30min,进而得到混合原料一;
S2、将规定好重量的低温发泡剂,交联剂,氧化锌,硬脂酸,流动剂,滑石粉,耐磨剂,架桥剂,发泡剂和石墨烯加入到混合中,通过混合15min~30min,进而可以得到混合原料二;
S3、将混合好的混合原料一和混合好的混合原料二,加入到混合机中,进行再次混合,混合30min~60min时,进而可以将混合机中的原料进行排出,进而可以得到混合原料三;
S4、将混合好的原料三可以加入到挤出机中,进而可以进行熔融挤出,其中进料温度为70~80℃,出料温度不高于130℃,挤出螺杆转速40~50Hz,喂料螺杆转速30~40Hz。
S5、当挤出机将原料三进行挤出时,可以将原料放入到冷却室对原料进行冷却处理,当原料冷却结束后,进而可以对冷却后的原料进行剪切,对原料进行等份切割;
S6、当将原料剪切好后,进而通过造粒机,进行造粒作业,对加工好的原料进行排出,使造粒好的原料排到筛网机内,进而可以对加工好的原料进行筛选;
S7、将筛选好的原料,进而可以进行成型作业,成型包括模压发泡成型和射出发泡成型两种工艺。
优选的,所述弹性体材料,改性橡胶材质,氯丁橡胶,烯烃嵌段共聚物重量比为8:1:1:3。
优选的,所述冷却室提供的温度为0℃到10℃。
优选的,所述原料在成型过程中,模压成型温度165~180℃,射出温度85~95℃。
与现有技术相比,本发明提供了一种低压缩变形的发泡鞋底发泡材料及其制备方法,具备以下有益效果:
1、该低压缩变形的发泡鞋底发泡材料及其制备方法,通过设置改性橡塑材料、滑石粉、耐磨剂、氧化锌、架桥剂、发泡剂、石墨烯等为原料进行制得耐磨鞋底材料,可以在具有超软回弹性能的同时具有高耐磨性能,进而可以提高鞋底的使用寿命。
2、该低压缩变形的发泡鞋底发泡材料及其制备方法,通过EVA、氯丁橡胶等共混,突破了只有低熔点聚氨酯才能用作EVA发泡改性材料的限制,而且本发明利用氯丁橡胶改善材料的气密性、结晶性材料增强泡孔壁的强度,有效改善泡孔的稳定性。
3、该低压缩变形的发泡鞋底发泡材料及其制备方法,通过设置化丁基橡胶,其还具有良好的耐化学腐蚀和耐老化性能,进而可以提高鞋底的使用寿命,通过热塑性聚烯烃改善发泡材料的压缩变形,再添加氯丁橡胶改性材料,进一步提高鞋底的压缩变形性能,基于此,同等压缩形变性能的发泡鞋底,本发明的发泡鞋底可以更薄,鞋底更轻量化,更佳环保。
具体实施方式
下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明提供一种技术方案:一种低压缩变形的发泡鞋底发泡材料,包括100~200份组份A和100~200份组份B,组份A以质量份包括:溴化丁基橡胶75~100份,弹性体材料40~50份,弹性体材料由热塑性聚烯烃40份,热塑性聚烯烃室温的压缩歪值为15%以下,通过热塑性聚烯烃改善发泡材料的压缩变形,再添加氯丁橡胶改性材料,进一步提高鞋底的压缩变形性能,改性橡胶材质5~25份,氯丁橡胶5~10份,通过改性橡胶材质和氯丁橡胶,进一步提高鞋底的压缩变形性能,烯烃嵌段共聚物15~20份,烯烃嵌段共聚物有着很多独一无二的特性,氟橡胶3~5份,通过设置氟橡胶具有良好的耐磨性,弹性与耐高温性平衡的改进,具有较高的结晶温度,加工时能快速成型,无论室温下还是高温下,都具有更好的弹性恢复和压缩形变,耐磨性得到提高,乙烯共聚物10~30,通过乙烯共聚物,可以起到良好的保温性和耐水性,设置EVA20~30份,EVA由于在分子链中引入了醋酸乙烯单体,从而降低了高结晶度,提高了柔韧性、抗冲击性、填料相溶性和热密封性能,被广泛应用于发泡鞋料,组份B以质量份包括:低温发泡剂1.4~1.6份,交联剂0.7~0.8份,交联剂主要用在高分子材料(橡胶与热固性树脂)中。因为高分子材料的分子结构就像一条条长的线,没交联时强度低,易拉断,且没有弹性,交联剂的作用就是在线型的分子之间产生化学键,使线型分子相互连在一起,形成网状结构,这样提高橡胶的强度和弹性,橡胶中用的交联剂主要是硫磺,另外要加促进剂,氧化锌0.7份,硬脂酸0.8份,流动剂0.6份,通过设置流动剂,塑料成型加工中,通过相应的化学物理作用,大幅度提高各种塑料的熔指,增加塑料的加工流动性,改善塑料产品的表面光泽度,滑石粉1~2份,通过设置滑石粉具有很好的具有润滑性和耐火性,耐磨剂2~3份,通过设置耐磨剂可以起到耐磨的效果,架桥剂2~5份,发泡剂3~5,低温发泡剂的分解温度为180℃以下,石墨烯1~3份,通过设置改性橡塑材料、滑石粉、耐磨剂、氧化锌、架桥剂、发泡剂、石墨烯等为原料进行制得耐磨鞋底材料,可以在具有超软回弹性能的同时具有高耐磨性能,进而可以提高鞋底的使用寿命。
上述改性橡塑材料按照重量份包括以下原料:丁腈橡胶5~6份、腈橡胶是由丁二烯和丙烯腈经乳液聚合法制得的,丁腈橡胶主要采用低温乳液聚合法生产,耐油性极好,耐磨性较高,耐热性较好,粘接力强,氟橡胶1~3份、通过设置氟橡胶具有很好的耐腐蚀性,乙丙橡胶2~5份、增塑剂6~8份、聚四氢呋喃醚二醇1~2份、聚丙二烯硅氧烷5~7份、聚异戊二烯6~10份、石墨烯1~3份、铜离子粉1~2份、空心陶瓷微球0.1~0.5份,发泡剂为水和偶氮二异丁腈按体积比为1:2~4组成的混合物,弹性体材料,改性橡胶材质,氯丁橡胶,烯烃嵌段共聚物重量比为8:1:1:3。
一种低压缩变形的发泡鞋底发泡材料制备方法,制备步骤如下:
S1、将规定好重量的溴化丁基橡胶,弹性体材料,改性橡胶材质,氯丁橡胶,烯烃嵌段共聚物,乙烯共聚物,EVA,加入到混合机中,通过启动混合机,进而可以使混合机内的搅拌叶进行顺时针进行旋转,混合15min~30min,进而得到混合原料一;
S2、将规定好重量的低温发泡剂,交联剂,氧化锌,硬脂酸,流动剂,滑石粉,耐磨剂,架桥剂,发泡剂和石墨烯加入到混合机中,通过搅拌叶混合15min~30min,进而可以得到混合原料二;
S3、将混合好的混合原料一和混合好的混合原料二,同时加入到混合机中,启动混合机,进行再次混合,混合30min~60min时,进而可以将混合机中的原料进行排出,进而可以得到混合原料三;
S4、将混合好的原料三可以加入到挤出机中,进而可以进行熔融挤出,其中进料温度为70~80℃,出料温度不高于130℃,挤出螺杆转速40~50Hz,喂料螺杆转速30~40Hz。
S5、当挤出机将原料三进行挤出时,可以将原料放入到冷却室对原料进行冷却处理,冷却室提供的温度为0℃到10℃,冷却30min后,当原料冷却结束后,进而可以对冷却后的原料进行剪切,对原料进行等份切割;
S6、当将原料剪切好后,进而通过造粒机,进行造粒作业,对加工好的原料进行排出,使造粒好的原料排到筛网机内,进而可以对加工好的原料进行筛选;
S7、将筛选好的原料,进而可以进行成型作业,成型包括模压发泡成型和射出发泡成型两种工艺,原料在成型过程中,模压成型温度165~180℃,射出温度85~95℃。
上文一般性的对本发明做了详尽的描述,但在本发明基础上,可以对之做一些修改或改进,这对于技术领域的一般技术人员是显而易见的。因此,在不脱离本发明思想精神的修改或改进,均在本发明的保护范围之内。

Claims (10)

1.一种低压缩变形的发泡鞋底发泡材料,包括100~200份组份A和100~200份组份B,其特征在于:所述组份A以质量份包括:溴化丁基橡胶75~100份,弹性体材料40~50份,改性橡胶材质5~25份,氯丁橡胶5~10份,烯烃嵌段共聚物15~20份,乙烯共聚物10~30,EVA20~30份,氟橡胶3~5份,所述组份B以质量份包括:低温发泡剂1.4~1.6份,交联剂0.7~0.8份,氧化锌0.7份,硬脂酸0.8份,流动剂0.6份,滑石粉12份,耐磨剂2~3份,架桥剂2~5份,发泡剂3~5,石墨烯1~3份。
2.根据权利要求1所述的一种低压缩变形的发泡鞋底发泡材料,其特征在于:所述弹性体材料由热塑性聚烯烃40份。
3.根据权利要求2所述的一种低压缩变形的发泡鞋底发泡材料,其特征在于:所述热塑性聚烯烃室温的压缩歪值为15%以下。
4.根据权利要求1所述的一种低压缩变形的发泡鞋底发泡材料,其特征在于:所述低温发泡剂的分解温度为180℃以下。
5.根据权利要求1所述的一种低压缩变形的发泡鞋底发泡材料,其特征在于:所述改性橡塑材料按照重量份包括以下原料:丁腈橡胶5~6份、氟橡胶1~3份、乙丙橡胶2~5份、增塑剂6~8份、聚四氢呋喃醚二醇1~2份、聚丙二烯硅氧烷5~7份、聚异戊二烯6~10份、石墨烯1~3份、铜离子粉1~2份、空心陶瓷微球0.1~0.5份。
6.根据权利要求1所述的一种低压缩变形的发泡鞋底发泡材料,其特征在于:所述发泡剂为水和偶氮二异丁腈按体积比为1:2~4组成的混合物。
7.一种低压缩变形的发泡鞋底发泡材料制备方法,其特征在于:制备步骤如下:
S1、将规定好重量的溴化丁基橡胶,弹性体材料,改性橡胶材质,氯丁橡胶,烯烃嵌段共聚物,乙烯共聚物,EVA,氟橡胶加入到混合机中,混合15min~30min,进而得到混合原料一;
S2、将规定好重量的低温发泡剂,交联剂,氧化锌,硬脂酸,流动剂,滑石粉,耐磨剂,架桥剂,发泡剂和石墨烯加入到混合中,通过混合15min~30min,进而可以得到混合原料二;
S3、将混合好的混合原料一和混合好的混合原料二,加入到混合机中,进行再次混合,混合30min~60min时,进而可以将混合机中的原料进行排出,进而可以得到混合原料三;
S4、将混合好的原料三可以加入到挤出机中,进而可以进行熔融挤出,其中进料温度为70~80℃,出料温度不高于130℃,挤出螺杆转速40~50Hz,喂料螺杆转速30~40Hz。
S5、当挤出机将原料三进行挤出时,可以将原料放入到冷却室对原料进行冷却处理,当原料冷却结束后,进而可以对冷却后的原料进行剪切,对原料进行等份切割;
S6、当将原料剪切好后,进而通过造粒机,进行造粒作业,对加工好的原料进行排出,使造粒好的原料排到筛网机内,进而可以对加工好的原料进行筛选;
S7、将筛选好的原料,进而可以进行成型作业,成型包括模压发泡成型和射出发泡成型两种工艺。
8.根据权利要求7所述的一种低压缩变形的发泡鞋底发泡材料制备方法,其特征在于:所述弹性体材料,改性橡胶材质,氯丁橡胶,烯烃嵌段共聚物重量比为8:1:1:3。
9.根据权利要求7所述的一种低压缩变形的发泡鞋底发泡材料制备方法,其特征在于:所述冷却室提供的温度为0℃到10℃。
10.根据权利要求7所述的一种低压缩变形的发泡鞋底发泡材料制备方法,其特征在于:所述原料在成型过程中,模压成型温度165~180℃,射出温度85~95℃。
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CN106589908A (zh) * 2016-11-22 2017-04-26 茂泰(福建)鞋材有限公司 一种低压缩变形的发泡鞋底及其制备方法
CN113121910A (zh) * 2021-04-30 2021-07-16 康群伟 一种耐磨鞋底材料及其制备方法

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CN106589908A (zh) * 2016-11-22 2017-04-26 茂泰(福建)鞋材有限公司 一种低压缩变形的发泡鞋底及其制备方法
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