CN108164882A - 一种防静电安全鞋及其制造方法 - Google Patents

一种防静电安全鞋及其制造方法 Download PDF

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CN108164882A
CN108164882A CN201810075278.3A CN201810075278A CN108164882A CN 108164882 A CN108164882 A CN 108164882A CN 201810075278 A CN201810075278 A CN 201810075278A CN 108164882 A CN108164882 A CN 108164882A
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杨绍鑫
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Wenzhou Xincai Hong Anti Technology Co Ltd
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Abstract

本发明公开了一种防静电安全鞋及其制造方法。该防静电安全鞋包括鞋底和鞋面,所述鞋底包括如下重量份的组分:PVC 60‑70份季铵盐组合物0.5‑1份碳纤维粉1‑3份吡啶盐3‑5份多元醇酯10‑15份稳定剂5‑10份润滑剂0.5‑1份发泡剂3‑5份填充剂5‑8份。本发明的有益效果为:该防静电安全鞋具有良好的抗静电性能。

Description

一种防静电安全鞋及其制造方法
技术领域
本发明涉及安全鞋,特别涉及一种防静电安全鞋及其制造方法。
背景技术
安全鞋一般指人们在不同工作场合中穿着以用于保护脚部和腿部免受可预见伤害的鞋类,广泛应用于建筑、化工、机械等行业。
公开号为CN104231492A的中国专利公开了一种抗静电的PVC鞋底材料及其制造方法。该PVC鞋底材料包括如下重量份的组分:PVC 55-65份、季铵盐型阳离子表面活性剂3-5份、碳纤维粉1-3份、增塑剂20-30份、发泡剂2-5份、白炭黑3-8份和填充剂5-10份。
但是,季铵盐型阳离子表面活性剂的耐热性较差,影响制品的抗静电性能,有待改进。
发明内容
本发明的目的是提供一种防静电安全鞋。该防静电安全鞋具有良好的抗静电性能。
本发明的上述技术目的是通过以下技术方案得以实现的:
一种防静电安全鞋,包括鞋底和鞋面,所述鞋底包括如下重量份的组分:
PVC 60-70份
季铵盐组合物 0.5-1份
碳纤维粉 1-3份
吡啶盐 3-5份
多元醇酯 10-15份
稳定剂 5-10份
润滑剂 0.5-1份
发泡剂 3-5份
填充剂 5-8份。
通过采用上述技术方案,季铵盐组合物的加入能提升PVC的抗静电性能,碳纤维粉的加入能够与季铵盐组合物进行协同作用,从而增强PVC的抗静电性能,减少季铵盐组合物的加入,从而减少因季铵盐组合物的加入而造成鞋底变软的问题。吡啶盐的加入能够减少季铵盐的耐热性较差而对抗静电性能的影响,多元醇酯除了能够防止聚氯乙烯降解之外,还能够使PVC的玻璃化温度降低,增加PVC的分子链段的活动性,从而减弱季铵盐的耐热性较差带来的不利影响。稳定剂能提升体系的稳定性能,润滑剂能够提升体系的润滑性能,发泡剂能够让制品进行发泡,降低制品重量,填充剂的加入能够增加体系强度。
本发明进一步设置为:所述季铵盐组合物包括聚乙烯基苄基三甲胺盐、十二烷基二甲基苄基氯化铵和C12-14-烷基二甲基乙基苄基氯化铵,所述聚乙烯基苄基三甲胺盐、十二烷基二甲基苄基氯化铵和C12-14-烷基二甲基乙基苄基氯化铵的混合重量比为1∶2-4∶2-4。
通过采用上述技术方案,聚乙烯基苄基三甲胺盐属于高分子季铵盐型化合物,十二烷基二甲基苄基氯化铵和C12-14-烷基二甲基乙基苄基氯化铵属于小分子季铵盐型化合物。高分子季铵盐型化合物会在PVC表面形成一层稠密的排列,由于高分子季铵盐型化合物在PVC表面浓度高于在PVC内部浓度而使得高分子季铵盐型化合物的亲水基朝向空气并在界面上定向排列而构成一个具导电能力的渗透网络,从而达到抗静电的作用。小分子季铵盐型化合物的结构中含有亲水基和亲油基,会从PVC内部迁移到PVC表面,亲水基极易通过氢键与空气中的水分结合而形成导电通道,使静电荷散逸而达到降低其表面电阻率的目的。利用高分子型季铵盐型化合物和小分子型季铵盐型化合物进行复配,从而增强抗静电性能,
本发明进一步设置为:所述吡啶盐为对甲苯磺酸吡啶盐。
本发明进一步设置为:所述多元醇酯为山梨醇酐单硬脂酸酯、硬脂酸甘露醇酯、季戊四醇硬脂酸酯中的一种。
通过采用上述技术方案,山梨醇酐单硬脂酸酯、硬脂酸甘露醇酯、季戊四醇硬脂酸酯均为硬脂酸酯。山梨醇酐单硬脂酸酯为奶白色至棕黄色的硬质蜡状固体,呈片状或块状,无异味。硬脂酸甘露醇酯为浅黄色片状物,具有乳化分散润湿性能。季戊四醇硬脂酸在高温下具有良好的热稳定性和低挥发性,良好的脱模和流动性能,能够提高制品热稳定性。
本发明进一步设置为:所述稳定剂包括二碱式亚磷酸铅、三碱式硫酸铅和硬脂酸钡,所述二碱式亚磷酸铅、三碱式硫酸铅和硬脂酸钡的混合重量比为1-2∶1-2∶1。
通过采用上述技术方案,二碱式亚磷酸铅和三碱式硫酸铅均属于铅盐类复合稳定剂,再配合硬脂酸钡从而具有良好的稳定性能。
本发明进一步设置为:所述润滑剂为石蜡、聚乙烯蜡和氧化聚乙烯蜡中的一种。
通过采用上述技术方案,石蜡为碳原子数为18-30的烃类混合物,主要组分为直链烷烃。聚乙烯蜡具有优良的耐寒性、耐热性、耐化学性和耐磨性,可以增加产品的光泽和加工性能。氧化聚乙烯蜡带有一定量的羰基和羟基,与PVC和填充剂的相容性能够得到显著改善。
本发明进一步设置为:所述发泡剂为偶氮二甲酰胺。
本发明进一步设置为:所述填充剂为碳酸钙、滑石粉和硅灰石中的一种。
通过采用上述技术方案,碳酸钙能够在PVC中起到骨架作用,对塑料制品尺寸的稳定有巨大作用。碳酸钙能够增加PVC的硬度和伸长率。滑石粉能够显著提高PVC的刚性和耐蠕变性、硬度和耐表面划伤性、耐热性和热变形温度,能够促进PVC流动,提高加工性能。硅灰石具有低吸水性、热稳定性和传导性、化学惰性,能够提高PVC的硬度、弯曲强度,同时提升导电性能。
本发明另一发明目的在于提供一种防静电安全鞋的制造方法,包括如下步骤:
步骤1:按照重量份,称取PVC 60-70份、季铵盐组合物0.5-1份、碳纤维粉1-3份、吡啶盐3-5份、多元醇酯10-15份、稳定剂5-10份、润滑剂0.5-1份、发泡剂3-5份、填充剂5-8份,将各组分进行混炼,得到混合均匀的混合物;
步骤2:将混合物加入挤出机,挤出得到粒料;
步骤3:将粒料加入注塑机,注塑成型得到鞋底;
步骤4:将帆布依次经过缝纫、胶粘、裁剪的方法与鞋底结合,制得安全鞋。
通过采用上述技术方案,先将PVC、季铵盐组合物、碳纤维粉、吡啶盐、多元醇酯、稳定剂、润滑剂、发泡剂和填充剂进行充分混合,使进入挤出机的混合物制备得到的粒料的各组分也能够充分混合。
综上所述,本发明具有以下有益效果:
1、碳纤维粉的加入能够与季铵盐组合物进行协同作用,从而增强PVC的抗静电性能,减少季铵盐组合物的加入,从而减少因季铵盐组合物的加入而造成鞋底变软的问题;
2、吡啶盐的加入能够减少季铵盐的耐热性较差而对抗静电性能的影响;
3、多元醇酯除了能够防止聚氯乙烯降解之外,还能够使PVC的玻璃化温度降低,增加PVC的分子链段的活动性,从而减弱季铵盐的耐热性较差带来的不利影响。
具体实施方式
实施例1-5用于说明本发明防静电安全鞋的鞋底组分和防静电安全鞋的制备方法。
实施例1-5中防静电安全鞋的鞋底组分见表1。
表1、防静电安全鞋的鞋底组分表
注:单位“份”指重量份;
季铵盐组合物包括聚乙烯基苄基三甲胺盐、十二烷基二甲基苄基氯化铵和C12-14-烷基二甲基乙基苄基氯化铵;
稳定剂包括二碱式亚磷酸铅、三碱式硫酸铅和硬脂酸钡。
以下详细说明实施例1中防静电安全鞋的制备方法,实施例2-5中防静电安全鞋的制备方法同实施例1。防静电安全鞋的制备方法具体包括如下步骤:
步骤1:按照重量份,称取PVC、季铵盐组合物、碳纤维粉、吡啶盐、多元醇酯、稳定剂、润滑剂、发泡剂、填充剂,将各组分进行混炼,得到混合均匀的混合物;
步骤2:将混合物加入挤出机,挤出得到粒料;
步骤3:将粒料加入注塑机,注塑成型得到鞋底;
步骤4:将帆布依次经过缝纫、胶粘、裁剪的方法与鞋底结合,制得安全鞋。
对比例1
将帆布依次经过缝纫、胶粘、裁剪的方法与公开号为CN104231492A的中国专利的实施例6的鞋底进行结合,制得的防静电安全鞋作为对比例1。
防静电试验
参照GB/T21148-2007对实施例1-5和对比例1的防静电安全鞋进行测试并进行记录。
表2、实施例1-5和对比例1中防静电安全鞋的防静电试验记录表
注:RH30%表示处于干燥条件,RH85%表示处于潮湿条件。
从表2可知,实施例1-5在干燥条件和潮湿条件的体积电阻均在100kΩ-1000MΩ之间。相比于对比例1,实施例1-5更靠近100kΩ,由此表明本发明相比于对比例1具有更优异的防静电性能。
本发明具有更优异的防静电性能的原因为:吡啶盐的加入能够减少季铵盐的耐热性较差而对抗静电性能的影响;多元醇酯除了能够防止聚氯乙烯降解之外,还能够使PVC的玻璃化温度降低,增加PVC的分子链段的活动性,从而减弱季铵盐的耐热性较差带来的不利影响。
硬度试验
参照GB/T 3903.4-2008《鞋类通用试验方法硬度》对实施例1-5和对比例1的防静电安全鞋的鞋底进行测试并进行记录。
表3、实施例1-5和对比例1中防静电安全鞋的鞋底硬度试验记录表
硬度/邵氏A
实施例1 66
实施例2 68
实施例3 70
实施例4 67
实施例5 65
对比例1 59
从表3可知,实施例1-5的硬度均高于对比例1。本发明具有更优异的硬度原因为:季铵盐组合物采用高分子季铵盐型化合物和小分子季铵盐型化合物进行复配得到,增强季铵盐组合物的抗静电性能,降低季铵盐组合物的用量,从而减少对鞋底硬度的影响。
本具体实施例仅仅是对本发明的解释,其并不是对本发明的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本发明的权利要求范围内都受到专利法的保护。

Claims (9)

1.一种防静电安全鞋,包括鞋底和鞋面,其特征是:所述鞋底包括如下重量份的组分:
PVC 60-70份
季铵盐组合物0.5-1份
碳纤维粉1-3份
吡啶盐3-5份
多元醇酯10-15份
稳定剂5-10份
润滑剂0.5-1份
发泡剂3-5份
填充剂5-8份。
2.根据权利要求1所述的一种防静电安全鞋,其特征是:所述季铵盐组合物包括聚乙烯基苄基三甲胺盐、十二烷基二甲基苄基氯化铵和C12-14-烷基二甲基乙基苄基氯化铵,所述聚乙烯基苄基三甲胺盐、十二烷基二甲基苄基氯化铵和C12-14-烷基二甲基乙基苄基氯化铵的混合重量比为1:2-4:2-4。
3.根据权利要求1所述的一种防静电安全鞋,其特征是:所述吡啶盐为对甲苯磺酸吡啶盐。
4.根据权利要求1所述的一种防静电安全鞋,其特征是:所述多元醇酯为山梨醇酐单硬脂酸酯、硬脂酸甘露醇酯、季戊四醇硬脂酸酯中的一种。
5.根据权利要求1所述的一种防静电安全鞋,其特征是:所述稳定剂包括二碱式亚磷酸铅、三碱式硫酸铅和硬脂酸钡,所述二碱式亚磷酸铅、三碱式硫酸铅和硬脂酸钡的混合重量比为1-2:1-2:1。
6.根据权利要求1所述的一种防静电安全鞋,其特征是:所述润滑剂为石蜡、聚乙烯蜡和氧化聚乙烯蜡中的一种。
7.根据权利要求1所述的一种防静电安全鞋,其特征是:所述发泡剂为偶氮二甲酰胺。
8.根据权利要求1所述的一种防静电安全鞋,其特征是:所述填充剂为碳酸钙、滑石粉和硅灰石中的一种。
9.一种防静电安全鞋的制造方法,其特征是:包括如下步骤:
步骤1:按照重量份,称取PVC 60-70份、季铵盐组合物0.5-1份、碳纤维粉1-3份、吡啶盐3-5份、多元醇酯10-15份、稳定剂5-10份、润滑剂0.5-1份、发泡剂3-5份、填充剂5-8份,将各组分进行混炼,得到混合均匀的混合物;
步骤2:将混合物加入挤出机,挤出得到粒料;
步骤3:将粒料加入注塑机,注塑成型得到鞋底;
步骤4:将帆布依次经过缝纫、胶粘、裁剪的方法与鞋底结合,制得安全鞋。
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