CN102732022A - 阻燃玻纤增强pa66/pa612合金组合物及其制备方法 - Google Patents

阻燃玻纤增强pa66/pa612合金组合物及其制备方法 Download PDF

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CN102732022A
CN102732022A CN2012102473918A CN201210247391A CN102732022A CN 102732022 A CN102732022 A CN 102732022A CN 2012102473918 A CN2012102473918 A CN 2012102473918A CN 201210247391 A CN201210247391 A CN 201210247391A CN 102732022 A CN102732022 A CN 102732022A
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flame
alloy composite
glass fibre
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strengthens
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郭建鹏
杨涛
孟成铭
陈晓东
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Shanghai Rizhisheng New Technology Development Co Ltd
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Abstract

本发明涉及一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法，所述合金组合物的组分以及各组分的重量百分比含量为：PA612 20～41％，PA66 20～41％，复配阻燃母粒0～15％，玻璃纤维20～40%，抗氧剂0.1～1％，润滑分散剂0.1～1％；所述合金组合物的制备方法包括如下步骤：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235～260℃，螺杆转数在30～40Hz。本发明的优点是具有高CTI值、低阻燃剂析出性，无卤环保，综合性能均衡，可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。

Description

阻燃玻纤增强PA66/PA612合金组合物及其制备方法
技术领域
本发明涉及一种合金组合物及其制备方法，尤其是涉及一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法。
背景技术
近年来，我国电子电气工业迅速发展，对高电绝缘阻燃增强工程塑料的需求日益增长，如低压真空接触器、断路器、漏电保护器、接插件、低压开关、薄壁电子电气元件等都需要用具有良好的综合力学性能、阻燃性能及电绝缘性能的工程塑料材料。在这一产品领域里，聚酰胺(PA)的用量最大。然而，由于阻燃剂的发展相对行业对材料日益提高的要求来说相对滞后，很多种阻燃剂加入到材料里会大大降低了材料的力学性能、电绝缘性能。例如，相比漏电起痕指数(CTI)从600V降到200V甚至更低，此外，随着欧盟RoHs和WEEE指令的实施，传统的溴系阻燃体系已不能满足此要求，同时某些阻燃剂的使用也会受到限制。随着技术的进步工程塑料国产化的进程也在加快。上海日之升新技术发展有限公司针对高CTI值、低阻燃剂析出性阻燃玻纤增强PA66/PA612合金组合物产品进行了深入的研究。所研制的高CTI值、低阻燃剂析出性、阻燃玻纤增强PA66/PA612合金组合物产品成功地替代了BASF等公司生产的同类产品，实现了该类产品的国产化，在被一些外资企业纳入原料国产化计划的同时，该材料也开始出口到欧美地区。
发明内容
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法。本发明的优点是具有高CTI值、低阻燃剂析出性，无卤环保，综合性能均衡，可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。
本发明的第一个目的通过以下技术方案来实现：
一种阻燃玻纤增强PA66/PA612合金组合物，所述合金组合物的组分以及各组分的重量百分比含量为：PA612 20～41％，PA66 20～41％，复配阻燃母粒0～15％，玻璃纤维20～40%，抗氧剂0.1～1％，润滑分散剂0.1～1％。
优选的，所述PA66为聚己内酰胺，所述聚己内酰胺的特性粘度为2.4dL/g。
优选的，所述复配阻燃母粒的组分及各组分的重量百分比含量为:除铁赤磷母粒50%；防迁移剂25%；高CTI助剂25%。
优选的，所述玻璃纤维为无碱玻璃纤维，其表面经硅烷偶联剂处理。
优选的，所述抗氧剂为受阻酚类抗氧剂。
优选的，所述润滑分散剂为硅酮。
优选的，所述PA612的特性粘度为2.4dL/g。
本发明的第二个目的通过以下技术方案实现：
一种制备所述阻燃玻纤增强PA66/PA612合金组合物的方法，所述方法包括以下步骤：按以下组分及其重量百分比含量称取各组分：PA612 20～41％，PA66 20～41％，复配阻燃母粒0～15％，玻璃纤维20～40%，抗氧剂0.1～1％，润滑分散剂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235～260℃，螺杆转数在30～40Hz。
与现有技术相比，本发明采用复配阻燃母粒体系，和传统的阻燃母粒相比，复配阻燃母粒体系有以下特点：1）综合力学性能更高；2)能将CTI从390V提高到660V；3）克服了普通红磷在一定条件下迁移的制品表面，然后红磷在氧气和水的作用下最终形成对金属制件有腐蚀性的磷系酸性物质的缺陷。加入的抗氧剂为一种受阻酚类抗氧剂可提高组合物在加工过程的抗氧化性能和使用过程中的抗老化性能；采用硅酮作为润滑剂，提高材料加工流动性，降低摩擦系数，提高滑爽性，在特定的加工条件下采用分散性较好，停留时间短，剪切稍弱的组合，防止阻燃剂分解，从而保证了材料的质量稳定。
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
本实施例涉及一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法；
所述合金组合物的各组分及其重量百分比含量如下：PA612 41％，PA66 20％，复配阻燃母粒9.9％，玻璃纤维28%，抗氧剂1.0％，润滑分散剂0.1％。
所述合金组合物的制备方法包括如下步骤：按以下组分及其重量百分比含量称取各组分：PA612 41％，PA66 20％，复配阻燃母粒9.9％，玻璃纤维28%，抗氧剂1.0％，润滑分散剂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235～260℃，螺杆转数在30Hz；双螺杆挤出机各段温度如表2所示。
所述复配阻燃母粒由三种组分混合而成，各组分的重量百分比含量为:除铁赤磷母粒50%；防迁移剂25%；高CTI助剂25%。
实施例2
本实施例涉及一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法；
所述合金组合物的各组分及其重量百分比含量如下：PA612 30％，PA66 34％，复配阻燃母粒15％，玻璃纤维20%，抗氧剂0.7％，润滑分散剂0.3％。
所述合金组合物的制备方法包括如下步骤：按以下组分及其重量百分比含量称取各组分：PA612 30％，PA66 34％，复配阻燃母粒15％，玻璃纤维20%，抗氧剂0.7％，润滑分散剂0.3％；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235～260℃，螺杆转数在33Hz；双螺杆挤出机各段温度如表2所示。
所述复配阻燃母粒由三种组分混合而成，各组分的重量百分比含量为:除铁赤磷母粒50%；防迁移剂25%；高CTI助剂25%。
实施例3
本实施例涉及一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法；
所述合金组合物的各组分及其重量百分比含量如下：PA612 20％，PA66 41％，复配阻燃母粒4％，玻璃纤维34%，抗氧剂0.3％，润滑分散剂0.7％。
所述合金组合物的制备方法包括如下步骤：按以下组分及其重量百分比含量称取各组分：PA612 20％，PA66 41％，复配阻燃母粒4％，玻璃纤维34%，抗氧剂0.3％，润滑分散剂0.7％；放入高混机中混合4分钟，出料，然后用双螺杆挤出机挤出造粒，加工温度在235～260℃，螺杆转数在36Hz；双螺杆挤出机各段温度如表2所示。
所述复配阻燃母粒由三种组分混合而成，各组分的重量百分比含量为:除铁赤磷母粒50%；防迁移剂25%；高CTI助剂25%。
实施例4
本实施例涉及一种阻燃玻纤增强PA66/PA612合金组合物及其制备方法；
所述合金组合物的各组分及其重量百分比含量如下：PA612 34％，PA66 24.9％，复配阻燃母粒0％，玻璃纤维40%，抗氧剂0.1％，润滑分散剂1.0％。
所述合金组合物的制备方法包括如下步骤：按以下组分及其重量百分比含量称取各组分：PA612 34％，PA66 24.9％，复配阻燃母粒0％，玻璃纤维40%，抗氧剂0.1％，润滑分散剂1.0％；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235～260℃，螺杆转数在40Hz；双螺杆挤出机各段温度如表2所示。
所述复配阻燃母粒由三种组分混合而成，各组分的重量百分比含量为:除铁赤磷母粒50%；防迁移剂25%；高CTI助剂25%。
对比例1～3
对比例1～3分别提供了一种合金组合物，合金组合物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；双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中合金组合物的组分及含量
Figure BDA00001894872400041
表2对比例1～3及实施例1～4中合金组合物制备方法中双螺杆挤出机各段温度
Figure BDA00001894872400042
实施效果
取对比例1～3及实施例1～4制得的合金组合物，采用ASTM标准进行性能测试对比；各项性能测试结果如表3所示；由表3可以看出本发明样品具有高CTI值、低阻燃剂析出性，无卤环保，综合性能均衡，可以广泛应用于接触器、漏电保护器、断路器外壳等电子电器领域的产品。
表3对比例1～3及实施例1～4中合金组合物性能测试结果（ASTM标准）
Figure BDA00001894872400051

Claims (8)

1.一种阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述合金组合物的组分以及各组分的重量百分比含量为：PA612 20～41％，PA66 20～41％，复配阻燃母粒0～15％，玻璃纤维20～40%，抗氧剂0.1～1％，润滑分散剂0.1～1％。
2.根据权利要求1所述的阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述PA66为聚己内酰胺，所述聚己内酰胺的特性粘度为2.4dL/g。
3.根据权利要求1所述的阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述复配阻燃母粒的组分及各组分的重量百分比含量为:除铁赤磷母粒50%；防迁移剂25%；高CTI助剂25%。
4.根据权利要求1所述的阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述玻璃纤维为无碱玻璃纤维，其表面经硅烷偶联剂处理。
5.根据权利要求1所述的阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述抗氧剂为受阻酚类抗氧剂。
6.根据权利要求1所述的阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述润滑分散剂为硅酮。
7.根据权利要求1至6任一项所述的阻燃玻纤增强PA66/PA612合金组合物，其特征在于，所述PA612的特性粘度为2.4dL/g。
8.一种制备权利要求1所述的阻燃玻纤增强PA66/PA612合金组合物的方法，其特征在于，所述方法包括以下步骤：按以下组分及其重量百分比含量称取各组分：PA61220～41％，PA66 20～41％，复配阻燃母粒0～15％，玻璃纤维20～40%，抗氧剂0.1～1％，润滑分散剂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235～260℃，螺杆转数在30～40Hz。
CN2012102473918A 2012-07-17 2012-07-17 阻燃玻纤增强pa66/pa612合金组合物及其制备方法 Pending CN102732022A (zh)

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WO2022110666A1 (zh) * 2020-11-25 2022-06-02 金发科技股份有限公司 一种红磷阻燃聚酰胺组合物及其制备方法和应用

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CN102558839A (zh) * 2011-12-21 2012-07-11 上海普利特复合材料股份有限公司 一种低气味抗静电红磷阻燃热塑性组合物及其制备方法

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CN102558839A (zh) * 2011-12-21 2012-07-11 上海普利特复合材料股份有限公司 一种低气味抗静电红磷阻燃热塑性组合物及其制备方法

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* Cited by examiner, † Cited by third party
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WO2022110666A1 (zh) * 2020-11-25 2022-06-02 金发科技股份有限公司 一种红磷阻燃聚酰胺组合物及其制备方法和应用

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