CN109181086A - 一种可生物基降解塑料鞋底材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种可生物基降解塑料鞋底材料及其制备方法,其配方由如下原料按重量份组成:EVA粒料80‑100份、高密度聚乙烯20‑30份、乙烯丙烯酸共聚物25‑35份、乙烯‑辛烯共聚物10‑30份、改性白杨木粉30‑40份、活化剂混合物5‑8份、滑石粉2‑4份、发泡剂2‑4份、交联剂3‑5份。本发明配方制得的鞋底具有良好的防潮隔水的效果,同时其具有良好的韧性、耐磨防滑性,且该塑料鞋底可降解,不会造成环境污染。
Description
技术领域
本发明涉及拖鞋的鞋底材料,具体是一种可生物基降解塑料鞋底材料及其制备方法。
背景技术
鞋底材料的种类很多,一般分为天然类鞋底材料和合成类鞋底材料两种。天然类底料包括天然底革、竹、木材等,合成类底料包括橡胶、塑料、橡塑合用材料、再生革、弹性硬纸板等。
生活中,EVA因无毒、质轻、防腐蚀、耐老化、高弹性及低成本等特点使其在鞋材行业中,有着重要地位。泡沫塑料度类高分子材料为石油化工产品,属于高聚物,因聚合度较大,分子间作用力强,高分子链难以断裂分解,从而导致已有的鞋材具有不可降解性,会污染环境。同时,石油是地球上不可再生资源,这使得石油产物具有不可再说性,且成本高。
发明内容
本发明提供了一种可生物基降解塑料鞋底材料及其制备方法,以解决上述技术问题。
一种可生物基降解塑料鞋底材料,由如下原料按重量份组成:EVA粒料80-100份、高密度聚乙烯20-30份、乙烯丙烯酸共聚物25-35份、乙烯-辛烯共聚物10-30份、改性白杨木粉30-40份、活化剂混合物5-8份、滑石粉2-4份、发泡剂2-4份、交联剂3-5份;
所述活化剂混合物是由氧化锌、硬脂酸、硬脂酸锌混合组成,各组分的质量比为:12:5:7。
优选的,所述发泡剂为偶氮二甲酰胺。
优选的,所述交联剂为过氧化二异丙苯。
优选的,所述改性白杨木粉的制备方法为:取白杨木粉置于鼓风干燥箱中,在90℃下干燥24h,然后将白杨木粉与钛酸酯偶联剂在80℃下于高混机中搅拌12min,钛酸酯偶联剂的含量为0-4%。
优选的,所取白杨木粉的粒径为80-325目。
一种可生物基降解塑料鞋底材料的制备方法,包括如下步骤:
(1)取料
按配方准确称取EVA粒料、高密度聚乙烯、乙烯丙烯酸共聚物、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉、发泡剂、交联剂备用;
(2)熔融共混
将EVA粒料、高密度聚乙烯、改性白杨木粉、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉物理搅拌均匀,使用转矩流变仪,在135℃和60rpm条件下熔融共混10min,然后重复以上过程至少5次,得到熔融混料;
(3)开炼
将熔融混料投入双棍开炼机的温度设置为80℃-90℃,温度达到后,加入发泡剂、交联剂进行开炼拉片,待开炼均匀后,将片材切至15x10x1.5大小;
(4)模压
将得到的片材放置于预先预热好的模具内,然后置于平板硫化仪上,在温度为170℃-175℃、模压为10MPa的条件下发泡840min,然后泄压得到发泡板材;
(5)烘干
将得到的发泡板材至于温度为100℃的烘箱中烘烤一段时间,即得到所述的鞋底材料。
优选的,所述步骤(5)的烘烤时间为20-30min。
本发明的有益效果:
本发明的有益效果是:本发明配方制得的鞋底具有良好的防潮隔水的效果,同时其具有良好的韧性、耐磨防滑性,且该塑料鞋底可降解,不会造成环境污染。通过改性白杨木粉,使得体系的粘度增加,从而降低了熔体流动速率,同时体系粘度的增加使得熔融相对发泡剂分解产生的气体抑制增强,使得泡孔变得较小,有利于力学强度的提高,降低发泡板材的弹性和柔软度。
具体实施方式
以下对本发明的实施例进行详细说明,但是本发明可以由权利要求限定和覆盖的多种不同方式实施。
以下通过具体实施例对本发明进行详细描述。
实施例1
一种可生物基降解塑料鞋底材料的制备方法,包括如下步骤:
(1)取料
按配方准确称取EVA粒料80份、高密度聚乙烯20份、乙烯丙烯酸共聚物25份、乙烯-辛烯共聚物10份、改性白杨木粉30份、活化剂混合物5份、滑石粉2份、偶氮二甲酰胺发泡剂2份、过氧化二异丙苯交联剂3份备用;
其中,上述活化剂混合物是由氧化锌、硬脂酸、硬脂酸锌混合组成,各组分的质量比为:12:5:7。
上述改性白杨木粉的制备方法为:取粒径为80目的白杨木粉置于鼓风干燥箱中,在90℃下干燥24h,然后将白杨木粉与钛酸酯偶联剂在80℃下于高混机中搅拌12min,钛酸酯偶联剂的含量为0。
(2)熔融共混
将EVA粒料、高密度聚乙烯、改性白杨木粉、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉物理搅拌均匀,使用转矩流变仪,在135℃和60rpm条件下熔融共混10min,然后重复以上过程至少5次,得到熔融混料;
(3)开炼
将熔融混料投入双棍开炼机的温度设置为80℃-90℃,温度达到后,加入发泡剂、交联剂进行开炼拉片,待开炼均匀后,将片材切至15x10x1.5大小;
(4)模压
将得到的片材放置于预先预热好的模具内,然后置于平板硫化仪上,在温度为170℃、模压为10MPa的条件下发泡840min,然后泄压得到发泡板材;
(5)烘干
将得到的发泡板材至于温度为100℃的烘箱中烘烤20min,即得到所述的鞋底材料。
实施例2
一种可生物基降解塑料鞋底材料的制备方法,包括如下步骤:
(1)取料
按配方准确称取EVA粒料90份、高密度聚乙烯25份、乙烯丙烯酸共聚物30份、乙烯-辛烯共聚物20份、改性白杨木粉35份、活化剂混合物6.5份、滑石粉3份、偶氮二甲酰胺发泡剂3份、过氧化二异丙苯交联剂4份备用;
其中,上述活化剂混合物是由氧化锌、硬脂酸、硬脂酸锌混合组成,各组分的质量比为:12:5:7。
上述改性白杨木粉的制备方法为:取粒径为200目的白杨木粉置于鼓风干燥箱中,在90℃下干燥24h,然后将白杨木粉与钛酸酯偶联剂在80℃下于高混机中搅拌12min,钛酸酯偶联剂的含量为2%。
(2)熔融共混
将EVA粒料、高密度聚乙烯、改性白杨木粉、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉物理搅拌均匀,使用转矩流变仪,在135℃和60rpm条件下熔融共混10min,然后重复以上过程至少5次,得到熔融混料;
(3)开炼
将熔融混料投入双棍开炼机的温度设置为80℃-90℃,温度达到后,加入发泡剂、交联剂进行开炼拉片,待开炼均匀后,将片材切至15x10x1.5大小;
(4)模压
将得到的片材放置于预先预热好的模具内,然后置于平板硫化仪上,在温度为172.5℃、模压为10MPa的条件下发泡840min,然后泄压得到发泡板材;
(5)烘干
将得到的发泡板材至于温度为100℃的烘箱中烘烤25min,即得到所述的鞋底材料。
实施例3
一种可生物基降解塑料鞋底材料的制备方法,包括如下步骤:
(1)取料
按配方准确称取EVA粒料100份、高密度聚乙烯30份、乙烯丙烯酸共聚物35份、乙烯-辛烯共聚物30份、改性白杨木粉40份、活化剂混合物8份、滑石粉4份、偶氮二甲酰胺发泡剂4份、过氧化二异丙苯交联剂5份备用;
其中,上述活化剂混合物是由氧化锌、硬脂酸、硬脂酸锌混合组成,各组分的质量比为:12:5:7。
上述改性白杨木粉的制备方法为:取粒径为325目的白杨木粉置于鼓风干燥箱中,在90℃下干燥24h,然后将白杨木粉与钛酸酯偶联剂在80℃下于高混机中搅拌12min,钛酸酯偶联剂的含量为4%。
(2)熔融共混
将EVA粒料、高密度聚乙烯、改性白杨木粉、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉物理搅拌均匀,使用转矩流变仪,在135℃和60rpm条件下熔融共混10min,然后重复以上过程至少5次,得到熔融混料;
(3)开炼
将熔融混料投入双棍开炼机的温度设置为80℃-90℃,温度达到后,加入发泡剂、交联剂进行开炼拉片,待开炼均匀后,将片材切至15x10x1.5大小;
(4)模压
将得到的片材放置于预先预热好的模具内,然后置于平板硫化仪上,在温度为175℃、模压为10MPa的条件下发泡840min,然后泄压得到发泡板材;
(5)烘干
将得到的发泡板材至于温度为100℃的烘箱中烘烤30min,即得到所述的鞋底材料。
以上所述的本发明实施方式,并不构成对本发明保护范围的限定,任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的权利要求保护范围之内。
Claims (7)
1.一种可生物基降解塑料鞋底材料,其特征在于,由如下原料按重量份组成:EVA粒料80-100份、高密度聚乙烯20-30份、乙烯丙烯酸共聚物25-35份、乙烯-辛烯共聚物10-30份、改性白杨木粉30-40份、活化剂混合物5-8份、滑石粉2-4份、发泡剂2-4份、交联剂3-5份;
所述活化剂混合物是由氧化锌、硬脂酸、硬脂酸锌混合组成,各组分的质量比为:12:5:7。
2.根据权利要求1所述的可生物基降解塑料鞋底材料,其特征在于,所述发泡剂为偶氮二甲酰胺。
3.根据权利要求1所述的可生物基降解塑料鞋底材料,其特征在于,所述交联剂为过氧化二异丙苯。
4.根据权利要求1所述的可生物基降解塑料鞋底材料,其特征在于,所述改性白杨木粉的制备方法为:取白杨木粉置于鼓风干燥箱中,在90℃下干燥24h,然后将白杨木粉与钛酸酯偶联剂在80℃下于高混机中搅拌12min,钛酸酯偶联剂的含量为0-4%。
5.根据权利要求4所述的可生物基降解塑料鞋底材料,其特征在于,所取白杨木粉的粒径为80-325目。
6.一种可生物基降解塑料鞋底材料的制备方法,其特征在于,包括如下步骤:
(1)取料
按配方准确称取EVA粒料、高密度聚乙烯、乙烯丙烯酸共聚物、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉、发泡剂、交联剂备用;
(2)熔融共混
将EVA粒料、高密度聚乙烯、改性白杨木粉、乙烯-辛烯共聚物、改性白杨木粉、活化剂混合物、滑石粉物理搅拌均匀,使用转矩流变仪,在135℃和60rpm条件下熔融共混10min,然后重复以上过程至少5次,得到熔融混料;
(3)开炼
将熔融混料投入双棍开炼机的温度设置为80℃-90℃,温度达到后,加入发泡剂、交联剂进行开炼拉片,待开炼均匀后,将片材切至15x10x1.5大小;
(4)模压
将得到的片材放置于预先预热好的模具内,然后置于平板硫化仪上,在温度为170℃-175℃、模压为10MPa的条件下发泡840min,然后泄压得到发泡板材;
(5)烘干
将得到的发泡板材至于温度为100℃的烘箱中烘烤一段时间,即得到所述的鞋底材料。
7.根据权利要求1所述的可生物基降解塑料鞋底材料,其特征在于,所述步骤(5)的烘烤时间为20-30min。
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CN114145537A (zh) * | 2021-12-03 | 2022-03-08 | 福建中裕新材料技术有限公司 | 一种可降解生物基鞋用材料及其制备方法 |
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CN113980433A (zh) * | 2021-11-26 | 2022-01-28 | 泉州市宏创鞋材科技有限公司 | 一种可降解发泡鞋底及其制备方法 |
CN114145537A (zh) * | 2021-12-03 | 2022-03-08 | 福建中裕新材料技术有限公司 | 一种可降解生物基鞋用材料及其制备方法 |
CN114145537B (zh) * | 2021-12-03 | 2023-08-18 | 福建中裕新材料技术有限公司 | 一种可降解生物基鞋用材料及其制备方法 |
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