CN103525020A - 玻纤增强卤素阻燃耐高温pbt及其制备方法 - Google Patents

玻纤增强卤素阻燃耐高温pbt及其制备方法 Download PDF

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CN103525020A
CN103525020A CN201210221899.0A CN201210221899A CN103525020A CN 103525020 A CN103525020 A CN 103525020A CN 201210221899 A CN201210221899 A CN 201210221899A CN 103525020 A CN103525020 A CN 103525020A
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halogen flame
pbt
flame retardant
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殷海英
张正
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Qingdao Xinzhan Plastic Co Ltd
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Abstract

本发明公开了一种玻纤增强卤素阻燃耐高温PBT及其制备方法。本发明的玻纤增强卤素阻燃耐高温PBT，其组分按质量百分数配比为：PBT45%～60%、卤素阻燃剂5%～10%、三氧化二锑1%～10%、玻璃纤维20%～35%、抗氧剂0.1%～0.6%、润滑剂0.3%～1%、增韧剂2%～5%、偶联剂0.2%～1.5%。本发明的有益效果是，采用卤素阻燃剂和三氧化二锑协同共混，大大提升阻燃效能，玻璃纤维经过偶联剂处理能有效促进玻纤增强耐高温性能，采用抗氧剂、润滑剂和增韧剂共混使用，进一步提高产品的相容性、阻燃性、耐高温性和使用寿命；本发明的制备方法具有操作简易的优点。

Description

玻纤增强卤素阻燃耐高温PBT及其制备方法
技术领域
本发明涉及一种PBT及其制备方法，具体地说是一种玻纤增强卤素阻燃耐高温PBT及其制备方法。
背景技术
聚对苯二甲酸丁二醇酯（PBT）是一种结晶型热塑性聚酯树脂，它不仅具有优良的物理机械性能，如机械强度高、耐疲劳性和尺寸稳定性好、蠕变小、耐老化性能优异，而且其电气性能也极为优异，如其体积电阻率和介电强度高、耐电弧性能优良、在潮湿高温环境下电性能稳定，所以是制造电子、电气零件的理想材料，而一般的电子、电气零件都具有不同程度的阻燃和耐高温要求，特别是用于电器外壳、接触器外壳的材料，对PBT的阻燃性能和耐高温性能提出了更高的要求。常见的PBT材料大多数都能达到阻燃效果，但对耐高温性能却普遍存在一定局限性，在耐高温环境条件下使用时将存在安全隐患。
发明内容
鉴于上述现有技术的不足，本发明提供一种阻燃效能好、耐750℃高温灼热丝试验的玻纤增强卤素阻燃耐高温PBT及其制备方法。
本发明解决其技术问题所采用的技术方案是：玻纤增强卤素阻燃耐高温PBT，其组分按质量百分数配比为：PBT 45%～60%、卤素阻燃剂5%～10%、三氧化二锑1%～10%、玻璃纤维20%～35%、抗氧剂0.1%～0.6%、润滑剂0.3%～1%、增韧剂2%～5%、偶联剂0.2%～1.5%。
所述的卤素阻燃剂为溴系阻燃剂或氯系阻燃剂。
所述的玻璃纤维为无碱玻璃纤维，直径在6～12μm。
所述的抗氧剂为受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物。
所述的润滑剂为聚乙烯蜡、TAS-2A、EVA蜡、AClyn低分子量离聚物、TAF、硬脂酸钙的一种或多种。
所述的增韧剂为甲基丙烯酸缩水甘油酯接枝POE、马来酸酐接枝POE、乙烯-丁基丙烯酸二元共聚物、乙烯-丙烯酸丁酯-缩水甘油酯三元共聚物、低密度聚乙烯或其互配物。
所述的偶联剂为硅烷类偶联剂。
上述一种玻纤增强卤素阻燃耐高温PBT的制备方法为：
（1）将上述各组分按比例配料；
（2）将PBT在120℃～140℃下干燥4～6小时，卤素阻燃剂、玻璃纤维100℃～120℃下干燥30～45min；
（3）将按照步骤（2）进行干燥处理后的PBT、卤素阻燃剂、玻璃纤维置于高速搅拌机内，同时将三氧化二锑、抗氧剂、润滑剂、增韧剂、偶联剂置于同一高速搅拌机内，通过高速搅拌机混合均匀；
（4）将上述混合料加入双螺杆挤出机中，调节螺杆转速为250～350rpm，双螺杆挤出机的各段螺杆温度从加料口到机头的温度分别为200℃、220℃、235℃、240℃、240℃、230℃、220℃、220℃、220℃、240℃，在双螺杆挤出机的输送和剪切作用下，充分熔融塑化、捏合混炼，经机头挤出、拉条、冷却、干燥，最后包装，即得玻纤增强卤素阻燃耐高温PBT。
本发明的有益效果是，采用卤素阻燃剂和三氧化二锑协同共混，大大提升阻燃效能，玻璃纤维经过偶联剂处理能有效促进玻纤增强耐高温性能，采用抗氧剂、润滑剂和增韧剂共混使用，进一步提高产品的相容性、阻燃性、耐高温性和使用寿命；本发明的制备方法具有操作简易的优点。
本发明所述的玻纤增强卤素阻燃耐高温PBT的产品测试样板，经过750℃高温灼热丝试验，测试样板未被点燃，其耐高温性能强，而且机械性能优异。
具体实施方式
下面结合具体实施例来进一步说明本发明的技术方案。
实施例1：
一种玻纤增强卤素阻燃耐高温PBT，其组分按质量百分数配比为：PBT 50%、溴系阻燃剂10%、三氧化二锑5%、无碱玻璃纤维30%、受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物0.5%、EVA蜡0.5%、甲基丙烯酸缩水甘油酯接枝POE 3%、硅烷类偶联剂1%。
制备方法：（1）将上述各组分按比例配料；（2）将PBT在120℃～140℃下干燥4～6小时，溴系阻燃剂、无碱玻璃纤维100℃～120℃下干燥30～45min；（3）将干燥处理后的PBT、溴系阻燃剂、无碱玻璃纤维置于高速搅拌机内，同时将三氧化二锑、受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物、EVA蜡、甲基丙烯酸缩水甘油酯接枝POE、硅烷类偶联剂置于同一高速搅拌机内，通过高速搅拌机混合均匀；（4）将上述混合料加入双螺杆挤出机中，调节螺杆转速为250～350rpm，双螺杆挤出机的各段螺杆温度从加料口到机头的温度分别为200℃、220℃、235℃、240℃、240℃、230℃、220℃、220℃、220℃、240℃，在双螺杆挤出机的输送和剪切作用下，充分熔融塑化、捏合混炼，经机头挤出、拉条、冷却、干燥，最后包装，即得玻纤增强卤素阻燃耐高温PBT。
实施例2：
一种玻纤增强卤素阻燃耐高温PBT，其组分按质量百分数配比为：PBT 45%、溴系阻燃剂10%、三氧化二锑5%、无碱玻璃纤维35%、受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物0.5%、TAS-2A 0.5%、低密度聚乙烯3%、硅烷类偶联剂1%。
制备方法：（1）将上述各组分按比例配料；（2）将PBT在120℃～140℃下干燥4～6小时，溴系阻燃剂、无碱玻璃纤维100℃～120℃下干燥30～45min；（3）将干燥处理后的PBT、溴系阻燃剂、无碱玻璃纤维置于高速搅拌机内，同时将三氧化二锑、受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物、TAS-2A、低密度聚乙烯、硅烷类偶联剂置于同一高速搅拌机内，通过高速搅拌机混合均匀；（4）将上述混合料加入双螺杆挤出机中，调节螺杆转速为250～350rpm，双螺杆挤出机的各段螺杆温度从加料口到机头的温度分别为200℃、220℃、235℃、240℃、240℃、230℃、220℃、220℃、220℃、240℃，在双螺杆挤出机的输送和剪切作用下，充分熔融塑化、捏合混炼，经机头挤出、拉条、冷却、干燥，最后包装，即得玻纤增强卤素阻燃耐高温PBT。
实施例3：
一种玻纤增强卤素阻燃耐高温PBT，其组分按质量百分数配比为：PBT 60%、氯系阻燃剂10%、三氧化二锑5%、无碱玻璃纤维20%、受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物0.5%、硬脂酸钙0.5%、乙烯-丙烯酸丁酯-缩水甘油酯三元共聚物3.5%、硅烷类偶联剂0.5%。
制备方法：（1）将上述各组分按比例配料；（2）将PBT在120℃～140℃下干燥4～6小时，氯系阻燃剂、无碱玻璃纤维100℃～120℃下干燥30～45min；（3）将干燥处理后的PBT、氯系阻燃剂、无碱玻璃纤维置于高速搅拌机内，同时将三氧化二锑、受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物、硬脂酸钙、乙烯-丙烯酸丁酯-缩水甘油酯三元共聚物、硅烷类偶联剂置于同一高速搅拌机内，通过高速搅拌机混合均匀；（4）将上述混合料加入双螺杆挤出机中，调节螺杆转速为250～350rpm，双螺杆挤出机的各段螺杆温度从加料口到机头的温度分别为200℃、220℃、235℃、240℃、240℃、230℃、220℃、220℃、220℃、240℃，在双螺杆挤出机的输送和剪切作用下，充分熔融塑化、捏合混炼，经机头挤出、拉条、冷却、干燥，最后包装，即得玻纤增强卤素阻燃耐高温PBT。

Claims (8)

1.一种玻纤增强卤素阻燃耐高温PBT，其特征在于，其组分按质量百分数配比为：PBT 45%～60%、卤素阻燃剂5%～10%、三氧化二锑1%～10%、玻璃纤维20%～35%、抗氧剂0.1%～0.6%、润滑剂0.3%～1%、增韧剂2%～5%、偶联剂0.2%～1.5%。
2.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT，其特征在于，所述的卤素阻燃剂为溴系阻燃剂或氯系阻燃剂。
3.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT，其特征在于，所述的玻璃纤维为无碱玻璃纤维，直径在6～12μm。
4.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT，其特征在于，所述的抗氧剂为受阻酚抗氧剂KY-1076与亚磷酸酯抗氧剂JC-242的复配物。
5.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT，其特征在于，所述的润滑剂为聚乙烯蜡、TAS-2A、EVA蜡、AClyn低分子量离聚物、TAF、硬脂酸钙的一种或多种。
6.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT，其特征在于，所述的增韧剂为甲基丙烯酸缩水甘油酯接枝POE、马来酸酐接枝POE、乙烯-丁基丙烯酸二元共聚物、乙烯-丙烯酸丁酯-缩水甘油酯三元共聚物、低密度聚乙烯或其互配物。
7.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT，其特征在于，所述的偶联剂为硅烷类偶联剂。
8.根据权利要求1所述的玻纤增强卤素阻燃耐高温PBT的制备方法，其特征在于，包括以下步骤：
（1）将上述各组分按比例配料；
（2）将PBT在120℃～140℃下干燥4～6小时，卤素阻燃剂、玻璃纤维100℃～120℃下干燥30～45min；
（3）将按照步骤（2）进行干燥处理后的PBT、卤素阻燃剂、玻璃纤维置于高速搅拌机内，同时将三氧化二锑、抗氧剂、润滑剂、增韧剂、偶联剂置于同一高速搅拌机内，通过高速搅拌机混合均匀；
（4）将上述混合料加入双螺杆挤出机中，调节螺杆转速为250～350rpm，双螺杆挤出机的各段螺杆温度从加料口到机头的温度分别为200℃、220℃、235℃、240℃、240℃、230℃、220℃、220℃、220℃、240℃，在双螺杆挤出机的输送和剪切作用下，充分熔融塑化、捏合混炼，经机头挤出、拉条、冷却、干燥，最后包装，即得玻纤增强卤素阻燃耐高温PBT。
CN201210221899.0A 2012-07-02 2012-07-02 玻纤增强卤素阻燃耐高温pbt及其制备方法 Pending CN103525020A (zh)

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WO2018036803A1 (en) * 2016-08-25 2018-03-01 Sabic Global Technologies B.V. Polymer composition comprising poly(butylene terephthalate)
CN108329662A (zh) * 2017-12-26 2018-07-27 金发科技股份有限公司 一种阻燃增强pbt组合物及其制备方法
CN111961318A (zh) * 2020-08-20 2020-11-20 珠海格力绿色再生资源有限公司 一种增强型pbt树脂组合物及其制备方法和析出检测方法

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WO2018036803A1 (en) * 2016-08-25 2018-03-01 Sabic Global Technologies B.V. Polymer composition comprising poly(butylene terephthalate)
CN109642045A (zh) * 2016-08-25 2019-04-16 Sabic环球技术有限责任公司 包含聚对苯二甲酸丁二醇酯的聚合物组合物
US10844216B2 (en) 2016-08-25 2020-11-24 Sabic Global Technologies B.V. Polymer composition comprising poly(butylene terephthalate)
CN109642045B (zh) * 2016-08-25 2021-08-17 Sabic环球技术有限责任公司 包含聚对苯二甲酸丁二醇酯的聚合物组合物
CN108329662A (zh) * 2017-12-26 2018-07-27 金发科技股份有限公司 一种阻燃增强pbt组合物及其制备方法
CN108329662B (zh) * 2017-12-26 2021-05-04 金发科技股份有限公司 一种阻燃增强pbt组合物及其制备方法
CN111961318A (zh) * 2020-08-20 2020-11-20 珠海格力绿色再生资源有限公司 一种增强型pbt树脂组合物及其制备方法和析出检测方法
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