CN111253670A - 一种耐低温防水安全鞋 - Google Patents
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Abstract
本发明公开了一种耐低温防水安全鞋及其制备方法。所述鞋底材料由如下重量份数的原料制成:乙烯‑醋酸乙烯共聚物50‑60份,聚氯乙烯15‑20份,竹粉5‑15份,矿物填料5‑15份,偶联剂2‑6份,发泡剂3‑5份,交联剂0.3‑0.5份,氧化锌1‑2份。本发明制备的安全鞋,鞋底材料采用乙烯‑醋酸乙烯共聚物,聚氯乙烯和改性竹粉作为主料,改性竹粉增强了材料在低温下的冲击强度,辅料矿物填料采用高岭土和莱卡石组合,增强了材料的拉伸强度,使得制备的鞋底材料在低温下韧性增强,抗冲击,耐老化,使用寿命长。
Description
技术领域
本发明属于服装材料研发技术领域,具体涉及一种耐低温防水安全鞋及其制备方法。
背景技术
安全鞋是安全类鞋和防护类鞋的统称,一般指在不同工作场合穿用的具有保护脚部及腿部免受可预见的伤害的鞋类。在低温作业的场合,如冬季电缆维护,低温矿开采,除冰清雪等场合,安全鞋的鞋底受低温影响,常常出现冻裂,渗水等现象,造成人员冻伤或者受伤。
安全鞋鞋底材料是制备合格安全鞋的关键因素,目前制备鞋底的材料主要有EVA,EPDM,脲醛树脂,环氧树脂等材料及其复合,这些材料能减震、抗老化和易着色,广泛应用于运动鞋、拖鞋、凉鞋等鞋底发泡。但是,这些材料在低温下韧性差,容易开裂或者断裂。加入木粉可以增强材料在低温下的韧性,但是,其防水性能随之下降。美国专利NO,6929841公开了一种塑料复合材料产品,由热塑性聚合物和木材或天然纤维颗粒组成,小颗粒长度为0.2-2mm,大颗粒长度为2-6mm。木质或非木质的纤维颗粒在塑性基体中占50-70%。尽管木塑复合材料发挥了木粉的优势,但也存在一定的缺陷,例如木粉和塑料基体相容性很差、吸水性强、延展性不好、密度较大。
发明内容
本发明的目的在于提供一种耐低温防水安全鞋。
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物(EVA)50-60份,聚氯乙烯(PVC)15-20份,竹粉5-15份,矿物填料5-15份,偶联剂2-6份,发泡剂3-5份,交联剂0.3-0.5份,氧化锌1-2份。
所述偶联剂包括硅酸酯类、铁酸酯类、异氰酸酯类、丙烯酸酯类、酰胺类、硅烷类。
所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物。
所述发泡剂为发泡剂AC、发泡剂ACDC、发泡剂H、偶氮二甲酰胺中的一种或几种。
所述竹粉粒径大小为250-300目。
所述交联剂为交联剂DCP、3,4-二甲基-3,4-二苯基己烷、二烯丙基甲代烯丙基异氰酸酯、二羟甲基丙烷四(甲基)丙烯酸酯中的一种或几种。
所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在70-90℃条件下干燥,然后与偶联剂在80-90℃下于高混机中搅拌10-15min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在130-150℃,100-150rpm条件下熔融共混10-15min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至85-95℃,然后加入发泡剂,交联剂,氧化锌进行开炼拉片,切片制成片材;
(4)将片材放入模具中,在160-180℃,10-15MPa条件下模压发泡8-10min,然后泄压得到鞋底材料。
步骤(3)所述片材切至15mmx10mmx1.5mm。
本发明的有益效果:本发明制备的安全鞋,鞋底材料采用乙烯-醋酸乙烯共聚物,聚氯乙烯和改性竹粉作为主料,改性竹粉增强了材料在低温下的冲击强度,辅料矿物填料采用高岭土和莱卡石组合,增强了材料的拉伸强度,使得制备的鞋底材料在低温下韧性增强,抗冲击,耐老化,使用寿命长。
具体实施方式
为了便于理解本发明,下面将对本发明进行更全面的描述。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
实施例1
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,竹粉10份,矿物填料10份,偶联剂5份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为280目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
实施例2
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物52份,聚氯乙烯16份,竹粉6份,矿物填料7份,偶联剂3份,偶氮二甲酰胺3份,3,4-二甲基-3,4-二苯基己烷0.3份,氧化锌1份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为250目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在75℃条件下干燥,然后与偶联剂在80℃下于高混机中搅拌15min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在130℃,150rpm条件下熔融共混15min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至85℃,然后加入偶氮二甲酰胺,3,4-二甲基-3,4-二苯基己烷,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在160℃,15MPa条件下模压发泡8min,然后泄压得到鞋底材料。
实施例3
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物60份,聚氯乙烯20份,竹粉12份,矿物填料15份,偶联剂6份,发泡剂H 5份,二羟甲基丙烷四(甲基)丙烯酸酯0.5份,氧化锌2份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为290目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在88℃条件下干燥,然后与偶联剂在88℃下于高混机中搅拌10min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在145℃,140rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至95℃,然后加入发泡剂H,二羟甲基丙烷四(甲基)丙烯酸酯,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在180℃,15MPa条件下模压发泡10min,然后泄压得到鞋底材料。
实施例4
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,木粉10份,矿物填料10份,偶联剂5份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为280目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将木粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
对比例1
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,竹粉10份,矿物填料10份,偶联剂5份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为马来酸酐接枝聚丙烯;所述竹粉粒径大小为280目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
对比例2
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,竹粉10份,矿物填料10份,偶联剂5份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为3-辛酰基硫代-1-丙基三乙氧基硅烷;所述竹粉粒径大小为280目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
对比例3
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,矿物填料10份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述竹粉粒径大小为280目;所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将乙烯-醋酸乙烯共聚物,聚氯乙烯,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(2)将步骤(1)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(3)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
对比例4
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,竹粉10份,矿物填料10份,偶联剂5份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为280目;所述矿物填料为高岭土。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
对比例5
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,竹粉10份,矿物填料10份,偶联剂5份,发泡剂AC 4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为280目;所述矿物填料为莱卡石。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
对比例6
一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物55份,聚氯乙烯18份,竹粉10份,偶联剂5份,发泡剂AC4份,交联剂DCP 0.4份,氧化锌1.5份;所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物;所述竹粉粒径大小为280目。
上述耐低温防水安全鞋鞋底材料的制备方法,按照如下步骤进行:
(1)将竹粉在80℃条件下干燥,然后与偶联剂在85℃下于高混机中搅拌12min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉送入密炼机中,在140℃,120rpm条件下熔融共混12min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至90℃,然后加入发泡剂AC,交联剂DCP,氧化锌进行开炼拉片,切片制成片材,片材切至15mmx10mmx1.5mm;
(4)将片材放入模具中,在170℃,12MPa条件下模压发泡9min,然后泄压得到鞋底材料。
实验例1:低温冲击强度测试
低温冲击强度按GB/T1043.1-2008/ISO179-1-2010标准测试并制样,样品选自实施例1-4,及对比例1-3制备的鞋底材料,样品长度为80mm,宽为10mm,厚为4mm。样品需先在液氮中浸泡5min,然后迅速取出放入冲击试验机上测试,实验过程中每个样品从液氮中取出到摆锤下落的时间间隔不超过10s。测试结果见表1:
表1
注:*代表与实施例1比较P<0.05,#代表与对比例3相比P<0.05。
实验例2:拉伸性能测试
依照国标GB/T1040.1-2006做拉伸性能测试,将样品长为115mm、宽为10mm、厚度为4mm的哑铃型样条,样品选自实施例1-4,及对比例4-6制备的鞋底材料,在万能试验机上进行拉伸实验,拉伸速率为50mm/min,夹具间距为115mm,测得样品拉伸强度,见表2:
表2
注:*代表与实施例1比较P<0.05,#代表与对比例6相比P<0.05。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (9)
1.一种耐低温防水安全鞋,包括鞋底材料和鞋面材料,其特征在于,所述鞋底材料由如下重量份数的原料制成:乙烯-醋酸乙烯共聚物50-60份,聚氯乙烯15-20份,竹粉5-15份,矿物填料5-15份,偶联剂2-6份,发泡剂3-5份,交联剂0.3-0.5份,氧化锌1-2份。
2.根据权利要求1所述耐低温防水安全鞋,其特征在于,所述偶联剂包括硅酸酯类、铁酸酯类、异氰酸酯类、丙烯酸酯类、酰胺类、硅烷类。
3.根据权利要求1所述耐低温防水安全鞋,其特征在于,所述偶联剂为马来酸酐接枝聚丙烯和3-辛酰基硫代-1-丙基三乙氧基硅烷按照质量比1:2混合的混合物。
4.根据权利要求1所述耐低温防水安全鞋,其特征在于,所述发泡剂为发泡剂AC、发泡剂ACDC、发泡剂H、偶氮二甲酰胺中的一种或几种。
5.根据权利要求1-4中任一项所述耐低温防水安全鞋,其特征在于,所述竹粉粒径大小为250-300目。
6.根据权利要求1-5中任一项所述耐低温防水安全鞋,其特征在于,所述交联剂为交联剂DCP、3,4-二甲基-3,4-二苯基己烷、二烯丙基甲代烯丙基异氰酸酯、二羟甲基丙烷四(甲基)丙烯酸酯中的一种或几种。
7.根据权利要求1所述耐低温防水安全鞋,其特征在于,所述矿物填料为高岭土和莱卡石按照质量比2:1混合的混合物。
8.权利要求1-6中任一项所述耐低温防水安全鞋鞋底材料的制备方法,其特征在于,按照如下步骤进行:
(1)将竹粉在70-90℃条件下干燥,然后与偶联剂在80-90℃下于高混机中搅拌10-15min;
(2)将乙烯-醋酸乙烯共聚物,聚氯乙烯,步骤(1)制备的改性竹粉,矿物填料送入密炼机中,在130-150℃,100-150rpm条件下熔融共混10-15min;
(3)将步骤(2)制备的物料送入开炼机,将开炼机加热至85-95℃,然后加入发泡剂,交联剂,氧化锌进行开炼拉片,切片制成片材;
(4)将片材放入模具中,在160-180℃,10-15MPa条件下模压发泡8-10min,然后泄压得到鞋底材料。
9.权利要求8所述耐低温防水安全鞋鞋底材料的制备方法,其特征在于,步骤(3)所述片材切至15mmx10mmx1.5mm。
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