CN103709664A - 一种玻纤增强的阻燃改性pet复合材料 - Google Patents

一种玻纤增强的阻燃改性pet复合材料 Download PDF

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CN103709664A
CN103709664A CN201210373095.2A CN201210373095A CN103709664A CN 103709664 A CN103709664 A CN 103709664A CN 201210373095 A CN201210373095 A CN 201210373095A CN 103709664 A CN103709664 A CN 103709664A
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Abstract

本发明公开了一种玻纤增强的阻燃改性PET复合材料，其组分按质量百分数配比为：PET30%～50%、玻璃纤维15%～30%、阻燃剂10%～25%、纳米蒙脱土10%～30%、偶联剂0.5%～1%、润滑剂0.5%～2%、成核剂0.5%～2%、抗氧剂0.1%～1%。本发明的有益效果是，本发明采用热分解温度大于300℃的阻燃剂应用于PET的阻燃改性，具有阻燃效果好、热稳定性佳和阻燃永久无分解和渗析现象等特性，纳米蒙脱土可以提高PET抗冲击、抗疲劳、耐热性、尺寸稳定性及气体阻隔性能等，从而起到增强PET综合物理性能的作用，同时改善PET加工性能，因此，本发明制备的PET复合材料具有综合性能优良、阻燃性能高、加工性好、成本低等特点。

Description

一种玻纤增强的阻燃改性PET复合材料
技术领域
本发明涉及高分子材料技术领域，具体地说是一种玻纤增强的阻燃改性PET复合材料。
背景技术
聚对苯二甲酸乙二醇酯（PET）具有强度高、弹性模量大、耐磨性好、化学稳定性较优良等诸多良好的性能，因此在纺织品中占有相当大的比重，同时PET又是性能优良用途广泛的工程塑料。但是，PET材料易燃烧，其极限氧指数只有22％左右，不能满足一些领域对阻燃性能的要求，所以对其进行阻燃显得非常必要；另外，纯PET材料的力学性能、耐热性和冲击性能较差，而且还存在结晶速率慢、成型加工困难等缺陷。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种高阻燃、高强度、高耐热性能、低成本和尺寸稳定性好的玻纤增强的阻燃改性PET复合材料。
本发明解决其技术问题所采用的技术方案是：一种玻纤增强的阻燃改性PET复合材料，其组分按质量百分数配比为：PET 30%～50%、玻璃纤维15%～30%、阻燃剂10%～25%、纳米蒙脱土10%～30%、偶联剂0.5%～1%、润滑剂0.5%～2%、成核剂0.5%～2%、抗氧剂0.1%～1%。
所述的PET为聚对苯二甲酸乙二醇酯，相对密度1.35～1.4。
所述的玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维。
所述的阻燃剂为热分解温度大于300℃的十溴二苯醚（DBDPO）、四溴双酚A双羟乙基醚（TBA-EO）、聚苯基膦酸二苯砜酯齐聚物、聚对二苯砜苯基磷酸酯、3-苯基膦酸丙羧酸、羧酸烷基膦酸、2-羧乙基苯基次膦酸中的一种。
所述的纳米蒙脱土的平均粒径为20nm～100nm。
所述的偶联剂为硅烷偶联剂、钛酸酯偶联剂、铝酸酯偶联剂、铝钛复合偶联剂中的一种。
所述的润滑剂为季戊四醇硬脂酸酯、OP蜡、TAS-2A、乙撑双硬脂酸酰胺中的一种。
所述的成核剂为滑石粉、高岭土、氢氧化铝、羧酸钠、苯甲酸钠中的一种。
所述的抗氧剂为受阻酚抗氧剂1010或1076与亚磷酸酯类抗氧剂168的复配物。
上述的一种玻纤增强的阻燃改性PET复合材料的制备方法，包括以下步骤：
（1）将PET在130℃～150℃下干燥3～4小时，阻燃剂在80℃～85℃下干燥30～45分钟；
（2）按重量配比称取干燥处理后的PET和阻燃剂，经混合均匀后，再加入按重量配比称取的纳米蒙脱土、偶联剂、润滑剂、成核剂和抗氧剂，然后一起加入高速混合机中充分混合5～15分钟；
（3）再将上述混合均匀的物料加入双螺杆挤出机的主喂料口，按重量配比称取的表面经硅烷偶联剂处理过的玻璃纤维从双螺杆挤出机的侧喂料口加入，并将加工温度控制在270℃～290℃，通过双螺杆挤出机的挤出物料经冷却、风干、切粒、干燥后即得本发明的一种玻纤增强的阻燃改性PET复合材料。
本发明的有益效果是，本发明采用热分解温度大于300℃的阻燃剂应用于PET的阻燃改性，具有阻燃效果好、热稳定性佳和阻燃永久无分解和渗析现象等特性，纳米蒙脱土可以提高PET抗冲击、抗疲劳、耐热性、尺寸稳定性及气体阻隔性能等，从而起到增强PET综合物理性能的作用，同时改善PET加工性能，因此，本发明制备的PET复合材料具有综合性能优良、阻燃性能高、加工性好、成本低等特点。
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：
一种玻纤增强的阻燃改性PET复合材料，其组分按质量百分数配比为：PET 40%、表面经硅烷偶联剂处理的无碱玻璃纤维20%、十溴二苯醚（DBDPO）16%、纳米蒙脱土20%、硅烷偶联剂0.8%、季戊四醇硬脂酸酯1.2%、滑石粉1.5%、受阻酚抗氧剂1010与亚磷酸酯类抗氧剂168的复配物0.5%，其中，所述的纳米蒙脱土的平均粒径为20nm～100nm。
制备方法：（1）将PET在130℃～150℃下干燥3～4小时，十溴二苯醚（DBDPO）在80℃～85℃下干燥30～45分钟；（2）按重量配比称取干燥处理后的PET和十溴二苯醚（DBDPO），经混合均匀后，再加入按重量配比称取的纳米蒙脱土、硅烷偶联剂、季戊四醇硬脂酸酯、滑石粉和受阻酚抗氧剂1010与亚磷酸酯类抗氧剂168的复配物，然后一起加入高速混合机中充分混合5～15分钟；（3）再将上述混合均匀的物料加入双螺杆挤出机的主喂料口，按重量配比称取的表面经硅烷偶联剂处理过的无碱玻璃纤维从双螺杆挤出机的侧喂料口加入，并将加工温度控制在270℃～290℃，通过双螺杆挤出机的挤出物料经冷却、风干、切粒、干燥后即得本发明的一种玻纤增强的阻燃改性PET复合材料。
实施例2：
一种玻纤增强的阻燃改性PET复合材料，其组分按质量百分数配比为：PET 30%、表面经硅烷偶联剂处理的无碱玻璃纤维30%、四溴双酚A双羟乙基醚（TBA-EO）15%、纳米蒙脱土20%、钛酸酯偶联剂1%、季戊四醇硬脂酸酯2%、高岭土1.5%、受阻酚抗氧剂1010与亚磷酸酯类抗氧剂168的复配物0.5%，其中，所述的纳米蒙脱土的平均粒径为20nm～100nm。
制备方法：（1）将PET在130℃～150℃下干燥3～4小时，四溴双酚A双羟乙基醚（TBA-EO）在80℃～85℃下干燥30～45分钟；（2）按重量配比称取干燥处理后的PET和四溴双酚A双羟乙基醚（TBA-EO），经混合均匀后，再加入按重量配比称取的纳米蒙脱土、钛酸酯偶联剂、季戊四醇硬脂酸酯、高岭土和受阻酚抗氧剂1010与亚磷酸酯类抗氧剂168的复配物，然后一起加入高速混合机中充分混合5～15分钟；（3）再将上述混合均匀的物料加入双螺杆挤出机的主喂料口，按重量配比称取的表面经硅烷偶联剂处理过的无碱玻璃纤维从双螺杆挤出机的侧喂料口加入，并将加工温度控制在270℃～290℃，通过双螺杆挤出机的挤出物料经冷却、风干、切粒、干燥后即得本发明的一种玻纤增强的阻燃改性PET复合材料。
实施例3：
一种玻纤增强的阻燃改性PET复合材料，其组分按质量百分数配比为：PET 50%、表面经硅烷偶联剂处理的无碱玻璃纤维15%、2-羧乙基苯基次膦酸20%、纳米蒙脱土12%、铝钛复合偶联剂0.5%、乙撑双硬脂酸酰胺1%、氢氧化铝1%、受阻酚抗氧剂1076与亚磷酸酯类抗氧剂168的复配物0.5%，其中，所述的纳米蒙脱土的平均粒径为20nm～100nm。
制备方法：（1）将PET在130℃～150℃下干燥3～4小时，2-羧乙基苯基次膦酸在80℃～85℃下干燥30～45分钟；（2）按重量配比称取干燥处理后的PET和2-羧乙基苯基次膦酸，经混合均匀后，再加入按重量配比称取的纳米蒙脱土、铝钛复合偶联剂、乙撑双硬脂酸酰胺、氢氧化铝和受阻酚抗氧剂1076与亚磷酸酯类抗氧剂168的复配物，然后一起加入高速混合机中充分混合5～15分钟；（3）再将上述混合均匀的物料加入双螺杆挤出机的主喂料口，按重量配比称取的表面经硅烷偶联剂处理过的无碱玻璃纤维从双螺杆挤出机的侧喂料口加入，并将加工温度控制在270℃～290℃，通过双螺杆挤出机的挤出物料经冷却、风干、切粒、干燥后即得本发明的一种玻纤增强的阻燃改性PET复合材料。

Claims (9)

1.一种玻纤增强的阻燃改性PET复合材料，其特征在于，其组分按质量百分数配比为：PET 30%～50%、玻璃纤维15%～30%、阻燃剂10%～25%、纳米蒙脱土10%～30%、偶联剂0.5%～1%、润滑剂0.5%～2%、成核剂0.5%～2%、抗氧剂0.1%～1%。
2.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的玻璃纤维为表面经硅烷偶联剂处理的无碱玻璃纤维。
3.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的阻燃剂为热分解温度大于300℃的十溴二苯醚（DBDPO）、四溴双酚A双羟乙基醚（TBA-EO）、聚苯基膦酸二苯砜酯齐聚物、聚对二苯砜苯基磷酸酯、3-苯基膦酸丙羧酸、羧酸烷基膦酸、2-羧乙基苯基次膦酸中的一种。
4.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的纳米蒙脱土的平均粒径为20nm～100nm。
5.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的偶联剂为硅烷偶联剂、钛酸酯偶联剂、铝酸酯偶联剂、铝钛复合偶联剂中的一种。
6.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的润滑剂为季戊四醇硬脂酸酯、OP蜡、TAS-2A、乙撑双硬脂酸酰胺中的一种。
7.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的成核剂为滑石粉、高岭土、氢氧化铝、羧酸钠、苯甲酸钠中的一种。
8.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料，其特征在于，所述的抗氧剂为受阻酚抗氧剂1010或1076与亚磷酸酯类抗氧剂168的复配物。
9.根据权利要求1所述的一种玻纤增强的阻燃改性PET复合材料的制备方法，其特征在于，包括以下步骤：
（1）将PET在130℃～150℃下干燥3～4小时，阻燃剂在80℃～85℃下干燥30～45分钟；
（2）按重量配比称取干燥处理后的PET和阻燃剂，经混合均匀后，再加入按重量配比称取的纳米蒙脱土、偶联剂、润滑剂、成核剂和抗氧剂，然后一起加入高速混合机中充分混合5～15分钟；
（3）再将上述混合均匀的物料加入双螺杆挤出机的主喂料口，按重量配比称取的表面经硅烷偶联剂处理过的玻璃纤维从双螺杆挤出机的侧喂料口加入，并将加工温度控制在270℃～290℃，通过双螺杆挤出机的挤出物料经冷却、风干、切粒、干燥后即得一种玻纤增强的阻燃改性PET复合材料。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104072929A (zh) * 2014-07-17 2014-10-01 王森贤 一种蒙脱土填充pet材料及其制备方法
CN107177175A (zh) * 2017-06-29 2017-09-19 铜陵市永创变压器电子有限公司 一种晶振外壳用改性玻璃纤维‑氢氧化镁填充的阻燃型导热塑及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104072929A (zh) * 2014-07-17 2014-10-01 王森贤 一种蒙脱土填充pet材料及其制备方法
CN107177175A (zh) * 2017-06-29 2017-09-19 铜陵市永创变压器电子有限公司 一种晶振外壳用改性玻璃纤维‑氢氧化镁填充的阻燃型导热塑及其制备方法

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