CN103012924B - 一种高cti值、高gwit值阻燃玻纤增强hdpe/pa610合金材料 - Google Patents

一种高cti值、高gwit值阻燃玻纤增强hdpe/pa610合金材料 Download PDF

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CN103012924B
CN103012924B CN201210521078.9A CN201210521078A CN103012924B CN 103012924 B CN103012924 B CN 103012924B CN 201210521078 A CN201210521078 A CN 201210521078A CN 103012924 B CN103012924 B CN 103012924B
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郭建鹏
孔伟
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Shanghai Rizhisheng New Technology Development Co Ltd
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Abstract

本发明提供了一种高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料，所述合金材料的各组分及其重量百分比含量为：HDPE 23～41%，PA610 22～41%，复配型阻燃剂6～15%，三氧化二锑3～10%，玻璃纤维20～30%，相容剂2～9%，抗氧剂0.1～1%，氧化物0.1～1%；所述合金材料的制备方法包括以下步骤：按上述配比称取各组分，放入高混机中混合2～5分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在220～240℃，螺杆转数在30～40Hz。本发明具有高CTI值和高GWIT值，环保，综合性能均衡，可用于低压电子电容器外壳、负载断路开关、碳刷支架和塑壳断路器。

Description

一种高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料
技术领域
本发明涉及一种HDPE/PA610合金材料，具体地涉及一种高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料。
背景技术
尼龙（Nylon），中文名聚酰胺，英文名称Polyamide（简称PA），是分子主链上含有重复酰胺基团-[NHCO]-的热塑性树脂总称。其命名由合成单体具体的碳原子数而定，如：尼龙-6、66、1010、610。它结晶度高、熔点明显；表面硬度大、耐磨耗、摩擦系数小、有自润滑性和消音性。低温性能良好，有一定的耐热性（可以在100度以下使用）。无毒、无臭、不霉烂，有自熄性、耐候性好，但染色性差。相对密度较小，吸水性低于尼龙66（PA66）和尼龙6（PA6）《也就是所说的单6跟双6》，尺寸稳定性好，成型加工容易。机械强度近于PA66跟PA6。能耐强碱，比双6和单6更耐普通弱酸，但易溶于甲酸中。高密度聚乙烯（High DensityPolyethylene，简称为“HDPE”），是一种结晶度高、非极性的热塑性树脂。原态HDPE的外表呈乳白色，在微薄截面呈一定程度的半透明状。PE具有优良的耐大多数生活和工业用化学品的特性。某些种类的化学品会产生化学腐蚀，例如腐蚀性氧化剂（浓硝酸），芳香烃（二甲苯）和卤化烃（四氯化碳）。该聚合物不吸湿并具有好的防水蒸汽性，可用于包装用途。HDPE具有很好的电性能，特别是绝缘介电强度高，使其很适用于电线电缆。中到高分子量等级具有极好的抗冲击性，在常温甚至在-40F低温度下均如此。HDPE/PA610合金材料综合了两种材料的优点。21世纪电子电气通讯家电家电机电设备向高性能微型化发展，对阻燃HDPE/PA610合金材料的要求越来越高，同时，随着人类对环保的认识，绿色环保产品受到普遍关注。因此，阻燃HDPE/PA610合金材料发展方向是：高性能功能化阻燃HDPE/PA610合金材料成为主流；绿色环保型阻燃HDPE/PA610合金材料的品种与需求越来越多；阻燃HDPE/PA610合金材料的生产向多品种系列化方向发展；阻燃剂的使用多元化，复合型发展。一些传统的方式为(GF+十溴二苯乙烷+三氧化二锑)复配体系，(GF+溴化聚苯乙烯+三氧化二锑)复配体系，但是这些复配体系的CTI值（漏电起痕指数）和GWIT值（灼热丝温度）都不高，不适用于高要求的用电环境。
发明内容
本发明的目的是为了克服上述现有技术存在的缺陷而提供一种高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料及其制备方法，本发明的优点是具有高CTI值和高GWIT值，环保，综合性能均衡，可以广泛用于低压电子电容器外壳，负载断路开关，碳刷支架，塑壳断路器。
本发明的第一个目的是通过以下技术方案实现的，一种高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料，所述合金材料的各组分及其各组分的重量百分比含量为：HDPE 23～41%，PA610 22～41%，复配型阻燃剂6～15%，三氧化二锑3～10%，玻璃纤维20～30%，相容剂2～9%，抗氧剂0.1～1%，氧化物0.1～1%。
优选的，所述PA610的特性粘度为2.8dl/g。
优选的，所述复配型阻燃剂的组分及其各组分的重量百分比含量为：BPS 50%，次磷酸镁25%，滑石粉25%。
优选的，所述玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维。
优选的，所述相容剂为马来酸酐接枝HDPE。
优选的，所述抗氧剂为高分子量受阻酚类抗氧剂，进一步优选的，所述抗氧剂为抗氧剂1330。
优选的，所述氧化物为氧化铁。
本发明的另一个目的是通过以下技术方案实现的，一种制备上述高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料的方法，所述方法包括以下步骤：按如下重量百分比含量取各组分：HDPE 23～41%，PA610 22～41%，复配型阻燃剂6～15%，三氧化二锑3～10%，玻璃纤维20～30%，相容剂2～9%，抗氧剂0.1～1%，氧化物0.1～1%；放入高混机中混合2～5分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在220～240℃，螺杆转数在30～40Hz。
与现有技术相比，本发明具有如下的有益效果：本发明采用新型阻燃复配体系，和传统的阻燃体系相比，在阻燃剂百分比含量相同的情况下，新型复配体系能使材料的灼热丝提高50到100℃，能够通过850℃灼热丝；同时，玻璃纤维的加入也使材料的灼热丝明显地提高，加入相容剂改善了材料的冲击性能；抗氧剂为一种受阻酚类抗氧剂，可提高合金材料在加工过程的抗氧化性能和使用过程中的抗老化性能；采用氧化铁作为提高CTI助剂，提高了材料加工流动性，降低了摩擦系数，提高了滑爽性，在特定的加工条件下采用分散性好、停留时间短、剪切弱的组合，防止阻燃剂分解，从而保证了材料的质量稳定。本发明的优点是具有高CTI值和高GWIT值，环保，综合性能均衡，可以广泛用于低压电子电容器外壳，负载断路开关，碳刷支架，塑壳断路器。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明，但不以任何形式限制本发明。应当指出的是，对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。
实施例1
本实施例涉及一种高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料及其制备方法。
所述合金材料的各组分及其各组分的重量百分比含量为：HDPE 41%，PA610 22%，复配型阻燃剂6%，三氧化二锑8.8%，玻璃纤维20%，马来酸酐接枝HDPE 2%，抗氧剂(1330)0.1%，氧化铁0.1%。
所述合金材料的制备方法包括以下步骤：按以下组分及其重量百分比含量称取各组分：HDPE 41%，PA610 22%，复配型阻燃剂6%，三氧化二锑8.8%，玻璃纤维20%，马来酸酐接枝HDPE 2%，抗氧剂(1330)0.1%，氧化铁0.1%；放入高混机中混合2分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在240℃，螺杆转数在30Hz；螺杆挤出机各段温度如表2所示。
所述复配型阻燃剂由三种组分混合而成，各组分的重量百分比含量为：BPS 50%，次磷酸镁25%，滑石粉25%。
实施例2
本实施例涉及一种高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料及其制备方法。
所述合金材料的各组分及其各组分的重量百分比含量为：HDPE 23%，PA610 41%，复配型阻燃剂7%，三氧化二锑3%，玻璃纤维21%，马来酸酐接枝HDPE 3%，抗氧剂(1330)1%，氧化铁1%。
所述合金材料的制备方法包括以下步骤：按以下组分及其重量百分比含量称取各组分：HDPE 23%，PA610 41%，复配型阻燃剂7%，三氧化二锑3%，玻璃纤维21%，马来酸酐接枝HDPE 3%，抗氧剂(1330)1%，氧化铁1%；放入高混机中混合5分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在230℃，螺杆转数在40Hz。
所述复配型阻燃剂由三种组分混合而成，各组分的重量百分比含量为：BPS 50%，次磷酸镁25%，滑石粉25%。
所述玻璃纤维为无碱玻璃纤维，将玻璃纤维加入硅烷偶联剂中，使其表面经硅烷偶联剂处理。
实施例3
本实施例涉及一种高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料及其制备方法。
所述合金材料的各组分及其各组分的重量百分比含量为：HDPE 25%，PA610 25%，复配型阻燃剂8%，三氧化二锑5%，玻璃纤维30%，马来酸酐接枝HDPE 6%，抗氧剂（1330）0.5%，氧化铁0.5%。
所述合金材料的制备方法包括以下步骤：按以下组分及其重量百分比含量称取各组分：HDPE 25%，PA610 25%，复配型阻燃剂8%，三氧化二锑5%，玻璃纤维30%，马来酸酐接枝HDPE 6%，抗氧剂（1330）0.5%，氧化铁0.5%；放入高混机中混合3分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在240℃，螺杆转数在35Hz。
所述复配型阻燃剂由三种组分混合而成，各组分的重量百分比含量为：BPS 50%，次磷酸镁25%，滑石粉25%。
实施例4
本实施例涉及一种高CTI值、高GWIT值环保阻燃玻纤增强HDPE/PA610合金材料及其制备方法。
所述合金材料的各组分及其各组分的重量百分比含量为：HDPE 23%，PA610 22%，复配型阻燃剂15%，三氧化二锑10%，玻璃纤维20%，马来酸酐接枝HDPE 9%，抗氧剂（1330）0.4%，氧化铁0.6%。
所述合金材料的制备方法包括以下步骤：按以下组分及其重量百分比含量称取各组分：HDPE 23%，PA610 22%，复配型阻燃剂15%，三氧化二锑10%，玻璃纤维20%，马来酸酐接枝HDPE 9%，抗氧剂（1330）0.4%，氧化铁0.6%；放入高混机中混合3分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在220℃，螺杆转数在38Hz。
所述复配型阻燃剂由三种组分混合而成，各组分的重量百分比含量为：BPS 50%，次磷酸镁25%，滑石粉25%。
对比例1～3
对比例1～3分别提供了一种合金材料，合金材料的组分及各组分的重量百分比含量如表1所示，制备方法同实施例1；螺杆挤出机各段温度如表2所示。
表1对比例1～3及实施例1～4中的合金材料的组分及含量
表2对比例1～3及实施例1～4中的合金材料制备方法中螺杆挤出机各段温度
实施效果
取对比例1～3及实施例1～4制得的合金材料，采用ASTM标准进行性能测试对比，各项性能测试对比如表3所示，由表3可以看出本发明制备的样品具有高GWIT值和高CTI值，环保，综合性能均衡，广泛用于低压电子电容器外壳，负载断路开关，碳刷支架，塑壳断路器。
表3对比例1～3及实施例1～4中合金材料性能测试结果（ASTM标准）
以上对本发明的具体实施例进行了描述。需要理解的是，本发明并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变形或修改，这并不影响本发明的实质内容。

Claims (5)

1.一种高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料，其特征在于，所述合金材料的各组分及其各组分的重量百分比含量为：HDPE 23～41％，PA61022～41％，复配型阻燃剂6～15％，三氧化二锑3～10％，玻璃纤维20～30％，相容剂2～9％，抗氧剂0.1～1％，氧化物0.1～1％；所述PA610的特性粘度为2.8dl/g；所述复配型阻燃剂的组分及其各组分的重量百分比含量为：BPS 50％，次磷酸镁25％，滑石粉25％；所述相容剂为马来酸酐接枝HDPE；所述氧化物为氧化铁。
2.如权利要求1所述的高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料，其特征在于，所述玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维。
3.如权利要求1所述的高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料，其特征在于，所述抗氧剂为高分子量受阻酚类抗氧剂。
4.如权利要求3所述的高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料，其特征在于，所述抗氧剂为抗氧剂1330。
5.一种制备如权利要求1所述的高CTI值、高GWIT值阻燃玻纤增强HDPE/PA610合金材料的方法，其特征在于，所述方法包括以下步骤：按如下重量百分比含量取各组分：HDPE 23～41％，PA61022～41％，复配型阻燃剂6～15％，三氧化二锑3～10％，玻璃纤维20～30％，相容剂2～9％，抗氧剂0.1～1％，氧化物0.1～1％；放入高混机中混合2～5分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在220～240℃，螺杆转数在30～40Hz。
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