CN114957845A - 一种轻质抗菌高弹eva发泡鞋底及其制备方法 - Google Patents

一种轻质抗菌高弹eva发泡鞋底及其制备方法 Download PDF

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CN114957845A
CN114957845A CN202210498493.0A CN202210498493A CN114957845A CN 114957845 A CN114957845 A CN 114957845A CN 202210498493 A CN202210498493 A CN 202210498493A CN 114957845 A CN114957845 A CN 114957845A
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foaming
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廖毅彬
卢鑫
庄东水
王育玲
丁思博
丁思恩
代雪玲
何清福
李兴勇
吴欢欢
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Shengtai Fujian Shoe Material Co ltd
Maotai Fujian Shoes Material Co Ltd
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Abstract

一种轻质抗菌高弹EVA发泡鞋底及其制备方法,EVA发泡鞋底包括以下原料:EVA、热塑性弹性体、溶聚丁苯橡胶、发泡剂、交联剂、促进剂、膨胀蛭石粉、云母粉、膨胀珍珠岩粉、载银介孔纳米二氧化硅、碳五石油树脂,本申请限定EVA、热塑性弹性体、溶聚丁苯橡胶相互混用,在性能上能做到互补,引入载银介孔纳米二氧化硅作为抗菌剂与其他原料配合,并加入碳五石油树脂增加各原料之间的相容性和粘接性,以提高制得的EVA发泡鞋底具备良好的抗菌性、回弹性及耐磨性。

Description

一种轻质抗菌高弹EVA发泡鞋底及其制备方法
技术领域
本发明属于EVA发泡鞋底制备领域,具体涉及一种轻质抗菌高弹EVA发泡鞋底的制备方法。
背景技术
EVA,即乙烯-乙酸乙烯共聚物,是由乙烯和乙酸乙烯共聚制得,被广泛用于发泡鞋料、功能性棚膜、包装膜、热熔胶、电线电缆及玩具等领域。EVA发泡鞋底材料,具有一定的缓冲作用,质地较为柔软,在零摄氏度以下,仍然可以保持其良好的可挠性;另外,在化学稳定性、抗老化性和抗臭氧强度上,均表现良好。但是现有的EVA发泡鞋底,在抗菌性能及整体重量上,稍显不足,有待进一步改进。
发明内容
本发明的目的是克服现有技术的缺点,提供一种轻质抗菌高弹EVA发泡鞋底,另一目的是提供一种制备上述EVA发泡鞋底的制备方法。
本发明采用如下技术方案:
一种轻质抗菌高弹EVA发泡鞋底,包括以下重量份的原料:
Figure BDA0003634231410000011
Figure BDA0003634231410000021
进一步的,所述促进剂为三烯丙基异氰脲酸酯、氧化锌、硬脂酸按质量比1:1.2-1.5:0.3-0.4的比例组成。
进一步的,所述发泡剂为发泡剂AC。
进一步的,所述交联剂为交联剂BIBP。
进一步的,所述热塑性弹性体为聚烯烃热塑性弹性体。
一种轻质抗菌高弹EVA发泡鞋底的制备方法,包括以下步骤:
步骤一,将除发泡剂、交联剂、促进剂以外的原料按所需重量份放入密炼机中,混合密炼,115-120℃排胶,得预混物;
步骤二,将步骤一制得的预混物在开炼机中混炼,并加入所需重量份的发泡剂、交联剂、促进剂,混料均匀片状出片,得EVA发泡片;
步骤三,将EVA发泡片裁成鞋底形状放入鞋模中发泡成型,得所述EVA发泡鞋底。
进一步的,步骤一中,密炼过程具体包括:先将EVA、热塑性弹性体、溶聚丁苯橡胶先放入密炼机中,混合密炼10-15min;再加入除发泡剂、交联剂、促进剂外的其他原料,混合密炼5-10min;然后整密炼温度到88℃,保持3min后一次翻料;待密炼温度升至95℃,二次翻料;待密炼温度升至101℃,三次翻料;待密炼温度升至109℃,四次翻料;待密炼温度升至115-120℃,五次翻料,再密炼1min,排胶,室温放置24h以上。
进一步的,步骤三中,发泡成型温度为152-168℃。
进一步的,步骤二中,EVA发泡片材在开炼机中至少打薄两次,以2-3mm的厚度出片。
由上述对本发明的描述可知,与现有技术相比,本发明的有益效果是:
第一,本申请限定EVA、热塑性弹性体、溶聚丁苯橡胶相互混用,在性能上能做到互补,引入载银介孔纳米二氧化硅作为抗菌剂与其他原料配合,并加入碳五石油树脂增加各原料之间的相容性和粘接性,以提高制得的EVA发泡鞋底具备良好的抗菌性、回弹性及耐磨性;
第二,引入膨胀蛭石粉、膨胀珍珠岩粉等多孔结构的材料与云母粉配合,在起到补强作用的同时,因为膨胀蛭石粉、膨胀珍珠岩粉本身的结构组成,可有效降低制得的EVA发泡鞋底的密度,达到轻质的效果;同时可以弥补因溶聚丁苯橡胶的加入,引起的收缩率大的问题,以稳定EVA发泡鞋底的的发泡尺寸;再者,引入的膨胀蛭石粉本身还具有一定的抗菌、抗病原体的作用,可与载银介孔纳米二氧化硅配合,以增强EVA发泡鞋底的抗菌性能;引入的云母粉还与溶聚丁苯橡胶配合,以提高制得的EVA发泡鞋底的的耐磨性;
第三,限定促进剂的组成,与发泡剂AC配合,使组合物的硫化速度与发泡速度大致同步,以获得孔眼小、均匀的闭孔结构,且形成的闭孔结构呈相互独立的状态,气泡与气泡之间不连通,以使制得的发泡鞋底获得较好的耐磨性能;同时,使得发泡后的溶聚丁苯橡胶具有优异的回弹性,以保证制得的发泡鞋底的整体力学性能。
具体实施方式
以下通过具体实施方式对本发明作进一步的描述。
一种轻质抗菌高弹EVA发泡鞋底,包括以下重量份的原料:
Figure BDA0003634231410000031
Figure BDA0003634231410000041
其中,促进剂为三烯丙基异氰脲酸酯、氧化锌、硬脂酸按质量比1:1.2-1.5:0.3-0.4的比例组成。
其制备方法,包括以下步骤:
步骤一,先将EVA、热塑性弹性体、溶聚丁苯橡胶先放入密炼机中,混合密炼10-15min;再加入除发泡剂、交联剂、促进剂外的其他原料,混合密炼5-10min;然后整密炼温度到88℃,保持3min后一次翻料;待密炼温度升至95℃,二次翻料;待密炼温度升至101℃,三次翻料;待密炼温度升至109℃,四次翻料;待密炼温度升至115-120℃,五次翻料,再密炼1min,排胶,室温放置24h以上;
步骤二,将步骤一制得的预混物在开炼机中混炼,并加入所需重量份的发泡剂、交联剂、促进剂,混料均匀片状出片,得EVA发泡片;
步骤三,将EVA发泡片裁成鞋底形状放入鞋模中发泡成型,得所述EVA发泡鞋底,发泡成型温度为152-168℃。
其中,步骤二中,EVA发泡片材在开炼机中至少打薄两次,以2-3mm的厚度出片。
实施例1
一种轻质抗菌高弹EVA发泡鞋底,包括以下重量份的原料:
Figure BDA0003634231410000051
其中,促进剂为三烯丙基异氰脲酸酯、氧化锌、硬脂酸按质量比1:1.2:0.4的比例组成。
其制备方法,包括以下步骤:
步骤一,先将EVA、热塑性弹性体、溶聚丁苯橡胶先放入密炼机中,混合密炼10min;再加入除发泡剂、交联剂、促进剂外的其他原料,混合密炼10min;然后整密炼温度到88℃,保持3min后一次翻料;待密炼温度升至95℃,二次翻料;待密炼温度升至101℃,三次翻料;待密炼温度升至109℃,四次翻料;待密炼温度升至115℃,五次翻料,再密炼1min,排胶,室温放置24h以上;
步骤二,将步骤一制得的预混物在开炼机中混炼,并加入所需重量份的发泡剂、交联剂、促进剂,混料均匀片状出片,得EVA发泡片;
步骤三,将EVA发泡片裁成鞋底形状放入鞋模中发泡成型,得所述EVA发泡鞋底,发泡成型温度为152℃。
其中,步骤二中,EVA发泡片材在开炼机中至少打薄两次,以2mm的厚度出片。
实施例2
一种轻质抗菌高弹EVA发泡鞋底,包括以下重量份的原料:
Figure BDA0003634231410000061
其中,促进剂为三烯丙基异氰脲酸酯、氧化锌、硬脂酸按质量比1:1.5:0.3的比例组成。
其制备方法,包括以下步骤:
步骤一,先将EVA、热塑性弹性体、溶聚丁苯橡胶先放入密炼机中,混合密炼15min;再加入除发泡剂、交联剂、促进剂外的其他原料,混合密炼5min;然后整密炼温度到88℃,保持3min后一次翻料;待密炼温度升至95℃,二次翻料;待密炼温度升至101℃,三次翻料;待密炼温度升至109℃,四次翻料;待密炼温度升至120℃,五次翻料,再密炼1min,排胶,室温放置24h以上;
步骤二,将步骤一制得的预混物在开炼机中混炼,并加入所需重量份的发泡剂、交联剂、促进剂,混料均匀片状出片,得EVA发泡片;
步骤三,将EVA发泡片裁成鞋底形状放入鞋模中发泡成型,得所述EVA发泡鞋底,发泡成型温度为168℃。
其中,步骤二中,EVA发泡片材在开炼机中至少打薄两次,以3mm的厚度出片。
实施例3
一种轻质抗菌高弹EVA发泡鞋底,包括以下重量份的原料:
Figure BDA0003634231410000071
Figure BDA0003634231410000081
其中,促进剂为三烯丙基异氰脲酸酯、氧化锌、硬脂酸按质量比1:1.3:0.35的比例组成。
其制备方法,包括以下步骤:
步骤一,先将EVA、热塑性弹性体、溶聚丁苯橡胶先放入密炼机中,混合密炼12min;再加入除发泡剂、交联剂、促进剂外的其他原料,混合密炼7min;然后整密炼温度到88℃,保持3min后一次翻料;待密炼温度升至95℃,二次翻料;待密炼温度升至101℃,三次翻料;待密炼温度升至109℃,四次翻料;待密炼温度升至118℃,五次翻料,再密炼1min,排胶,室温放置24h以上;
步骤二,将步骤一制得的预混物在开炼机中混炼,并加入所需重量份的发泡剂、交联剂、促进剂,混料均匀片状出片,得EVA发泡片;
步骤三,将EVA发泡片裁成鞋底形状放入鞋模中发泡成型,得所述EVA发泡鞋底,发泡成型温度为159℃。
其中,步骤二中,EVA发泡片材在开炼机中至少打薄两次,以2mm的厚度出片。
对比例1
其原料组成及制备方法与实施例3基本一致,其区别在于:膨胀蛭石粉、云母粉、膨胀珍珠岩粉等量替换为滑石粉。
对比例2
其原料组成与制备方法与实施例3基本一致,其区别在于:膨胀蛭石粉、膨胀珍珠岩粉等量替换为滑石粉。
对比例3
其原料组成与制备方法与实施例3基本一致,其区别在于:云母粉等量替换为滑石粉。
对比例4
其原料组成与制备方法与实施例3基本一致,其区别在于:促进剂为氧化锌、硬脂酸按质量比1.3:0.35的比例组成。
将实施例1-3制备的EVA发泡鞋底与对比例1-4制备的EVA橡胶发泡鞋底经测试,获得如下数据:其中,回弹率测试采用GT-7042-RE型冲击弹性试验机,DIN耐磨按照GB/T 9867测试。
表1各实施例测试数据表
Figure BDA0003634231410000091
Figure BDA0003634231410000101
通过上述表格可知,本申请制备的EVA发泡橡胶鞋底具备良好的抗菌性、回弹性及耐磨性,其中限定EVA、热塑性弹性体、溶聚丁苯橡胶相互混用,在性能上能做到互补,引入载银介孔纳米二氧化硅作为抗菌剂与其他原料配合,并加入碳五石油树脂增加各原料之间的相容性和粘接性,以提高制得的EVA发泡鞋底;并且引入膨胀蛭石粉、膨胀珍珠岩粉等多孔结构的材料与云母粉配合,在起到补强作用的同时,因为膨胀蛭石粉、膨胀珍珠岩粉本身的结构组成,可有效降低制得的EVA发泡鞋底的密度,达到轻质的效果;同时可以弥补因溶聚丁苯橡胶的加入,引起的收缩率大的问题,以稳定EVA发泡鞋底的的发泡尺寸;再者,引入的膨胀蛭石粉本身还具有一定的抗菌、抗病原体的作用,可与载银介孔纳米二氧化硅配合,以增强EVA发泡鞋底的抗菌性能;引入的云母粉还与溶聚丁苯橡胶配合,以提高制得的EVA发泡鞋底的的耐磨性。
以上所述,仅为本发明的较佳实施例而已,故不能以此限定本发明实施的范围,即依本发明申请专利范围及说明书内容所作的等效变化与修饰,皆应仍属本发明专利涵盖的范围内。

Claims (9)

1.一种轻质抗菌高弹EVA发泡鞋底,其特征在于:包括以下重量份的原料:
Figure FDA0003634231400000011
2.根据权利要求1所述的一种轻质抗菌高弹EVA发泡鞋底,其特征在于:所述促进剂为三烯丙基异氰脲酸酯、氧化锌、硬脂酸按质量比1:1.2-1.5:0.3-0.4的比例组成。
3.根据权利要求1所述的一种轻质抗菌高弹EVA发泡鞋底,其特征在于:所述发泡剂为发泡剂AC。
4.根据权利要求1所述的一种轻质抗菌高弹EVA发泡鞋底,其特征在于:所述交联剂为交联剂BIBP。
5.根据权利要求1所述的一种轻质抗菌高弹EVA发泡鞋底,其特征在于:所述热塑性弹性体为聚烯烃热塑性弹性体。
6.一种轻质抗菌高弹EVA发泡鞋底的制备方法,其特征在于:包括以下步骤:
步骤一,将除发泡剂、交联剂、促进剂以外的原料按所需重量份放入密炼机中,混合密炼,115-120℃排胶,得预混物;
步骤二,将步骤一制得的预混物在开炼机中混炼,并加入所需重量份的发泡剂、交联剂、促进剂,混料均匀片状出片,得EVA发泡片;
步骤三,将EVA发泡片裁成鞋底形状放入鞋模中发泡成型,得所述EVA发泡鞋底。
7.根据权利要求6所述的一种轻质抗菌高弹EVA发泡鞋底的制备方法,其特征在于:步骤一中,密炼过程具体包括:先将EVA、热塑性弹性体、溶聚丁苯橡胶先放入密炼机中,混合密炼10-15min;再加入除发泡剂、交联剂、促进剂外的其他原料,混合密炼5-10min;然后整密炼温度到88℃,保持3min后一次翻料;待密炼温度升至95℃,二次翻料;待密炼温度升至101℃,三次翻料;待密炼温度升至109℃,四次翻料;待密炼温度升至115-120℃,五次翻料,再密炼1min,排胶,室温放置24h以上。
8.根据权利要求6所述的一种轻质抗菌高弹EVA发泡鞋底的制备方法,其特征在于:步骤三中,发泡成型温度为152-168℃。
9.根据权利要求6所述的一种轻质抗菌高弹EVA发泡鞋底的制备方法,其特征在于:步骤二中,EVA发泡片材在开炼机中至少打薄两次,以2-3mm的厚度出片。
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CN111793270A (zh) * 2020-07-30 2020-10-20 厦门翔矽新材料有限公司 一种鞋材用止滑剂颗粒及其制备方法
CN114316339A (zh) * 2021-12-07 2022-04-12 茂泰(福建)鞋材有限公司 一种抗菌eva发泡鞋底及其制备方法

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CN114316339A (zh) * 2021-12-07 2022-04-12 茂泰(福建)鞋材有限公司 一种抗菌eva发泡鞋底及其制备方法

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