CN104693731A - 抗静电加纤增强增韧pc/pet共混合金 - Google Patents

抗静电加纤增强增韧pc/pet共混合金 Download PDF

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CN104693731A
CN104693731A CN201310650968.4A CN201310650968A CN104693731A CN 104693731 A CN104693731 A CN 104693731A CN 201310650968 A CN201310650968 A CN 201310650968A CN 104693731 A CN104693731 A CN 104693731A
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Abstract

本发明公开了一种抗静电加纤增强增韧PC/PET共混合金,其组分按质量百分数配比为:PC50%~70%、PET20%~30%、无碱玻璃纤维5%~15%、POE-g-GMA3%~8%、GMS1%~3%、SMA2%~5%、抗氧剂0.1%~0.5%、TAF0.1%~1.5%。本发明的有益效果是,与现有技术相比,本发明以GMS作为抗静电剂、无碱玻璃纤维作为增强剂、POE-g-GMA作为增韧剂、SMA作为增容剂,对PC/PET合金进行共混改性,使制得的共混合金体系具有优良的抗静电性能,而且强度高、抗冲击韧性好、加工流动性及热稳定优良,可广泛适用于电子电器、汽车、机械零部件、建筑材料等领域。

Description

抗静电加纤增强增韧PC/PET共混合金
技术领域
本发明涉及高分子材料技术领域,具体地说是一种抗静电加纤增强增韧PC/PET共混合金。
背景技术
PC/PET合金(聚碳酸酯/聚对苯二甲酸乙二醇酯)是一种综合性能较为理想的工程塑料,它具有PC、PET单组分不具备的优异性能,在很多场合均可使用。但由于PET是结晶聚合物,PC是非结晶聚合物,PC/PET属于典型的非晶/结晶共混体系,两者的相容性较差,从而导致PC、PET共混的韧性不好,强度不高;而且PC/PET本身的体积电阻较大,在生产和使用过程中容易产生静电积累,造成吸尘、电击,甚至产生火花后导致爆炸等恶性事故,给工业生产和日常生活带来麻烦。因此,对PC/PET合金在使用前进行增容、增韧、增强和抗静电改性是很有必要的,这对改善PC/PET性能和拓展应用范围也具有重要意义。
发明内容
本发明的目的在于提供一种抗静电加纤增强增韧PC/PET共混合金。
本发明解决其技术问题所采用的技术方案是:抗静电加纤增强增韧PC/PET共混合金,其组分按质量百分数配比为:PC 50%~70%、PET 20%~30%、无碱玻璃纤维5%~15%、POE-g-GMA 3%~8%、GMS 1%~3%、SMA 2%~5%、抗氧剂0.1%~0.5%、TAF 0.1%~1.5%。
所述的PC为双酚A型芳香族聚碳酸酯,重均分子量为20000~40000g/mol。
所述的PET为聚对苯二甲酸乙二醇酯,其特征粘度为0.6~0.9dL/g。
所述的无碱玻璃纤维为直径在8~15μm、长度为3~6mm、且表面经过硅烷偶联剂处理后的无碱玻璃纤维。
所述的POE-g-GMA为甲基丙烯酸缩水甘油酯接枝乙烯-辛烯共聚物。
所述的GMS为丙三醇单硬脂酸酯。
所述的SMA为苯乙烯接枝马来酸酐共聚物。
所述的抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂1010或抗氧剂1076与亚磷酸酯类抗氧剂168的复配物中的一种。
所述的TAF为改性乙撑双硬脂酰胺。
上述的抗静电加纤增强增韧PC/PET共混合金的制备方法,包括以下步骤:
(1)、将PC在鼓风干燥机中于110℃~130℃温度下干燥3~4小时,PET在130℃~150℃下干燥3~4小时,待用;
(2)、将按重量配比称取干燥的PET、GMS和TAF,分别加入高速混合机中,使一起搅拌2~10分钟后,出料加入双螺杆挤出机中,在230℃~280℃下熔融共混后挤出、冷却造粒,并干燥后制得PET抗静电母料,待用;
(3)、将按重量配比称取干燥的PC和步骤(2)制得的PET抗静电母料加入高速混合机中,同时加入按重量配比称取的POE-g-GMA、SMA、抗氧剂,使一起搅拌3~15分钟预混后,出料加入双螺杆挤出机的主喂料口,同时从双螺杆挤出机的侧喂料口加入将按重量配比称取的无碱玻璃纤维,控制加工温度在230℃~260℃,螺杆转速150~400r/min,经过双螺杆挤出机充分塑化共混后挤出、冷却造粒,即得本发明的抗静电加纤增强增韧PC/PET共混合金。
本发明的有益效果是,与现有技术相比,本发明以GMS作为抗静电剂、无碱玻璃纤维作为增强剂、POE-g-GMA作为增韧剂、SMA作为增容剂,对PC/PET合金进行共混改性,使制得的共混合金体系具有优良的抗静电性能,而且强度高、抗冲击韧性好、加工流动性及热稳定优良,可广泛适用于电子电器、汽车、机械零部件、建筑材料等领域。
具体实施方式
下面结合具体的优选实施例来进一步说明本发明的技术方案。
一种抗静电加纤增强增韧PC/PET共混合金,其组分按质量百分数配比为:PC 51%、PET 20%、无碱玻璃纤维15%、POE-g-GMA 6%、GMS 3%、SMA 4%、抗氧剂1076与亚磷酸酯类抗氧剂168的复配物0.3%、TAF 0.7%。其中,所述的PC为双酚A型芳香族聚碳酸酯,重均分子量为20000~40000g/mol;所述的PET为聚对苯二甲酸乙二醇酯,其特征粘度为0.6~0.9dL/g;所述的无碱玻璃纤维为直径在8~15μm、长度为3~6mm、且表面经过硅烷偶联剂处理后的无碱玻璃纤维;所述的POE-g-GMA为甲基丙烯酸缩水甘油酯接枝乙烯-辛烯共聚物;所述的GMS为丙三醇单硬脂酸酯;所述的SMA为苯乙烯接枝马来酸酐共聚物;所述的TAF为改性乙撑双硬脂酰胺。
制备方法:(1)、将PC在鼓风干燥机中于110℃~130℃温度下干燥3~4小时,PET在130℃~150℃下干燥3~4小时,待用;(2)、将按重量配比称取干燥的PET、GMS和TAF,分别加入高速混合机中,使一起搅拌2~10分钟后,出料加入双螺杆挤出机中,在230℃~280℃下熔融共混后挤出、冷却造粒,并干燥后制得PET抗静电母料,待用;(3)、将按重量配比称取干燥的PC和步骤(2)制得的PET抗静电母料加入高速混合机中,同时加入按重量配比称取的POE-g-GMA、SMA、抗氧剂1076与亚磷酸酯类抗氧剂168的复配物,使一起搅拌3~15分钟预混后,出料加入双螺杆挤出机的主喂料口,同时从双螺杆挤出机的侧喂料口加入将按重量配比称取的无碱玻璃纤维,控制加工温度在230℃~260℃,螺杆转速150~400r/min,经过双螺杆挤出机充分塑化共混后挤出、冷却造粒,即得本发明的抗静电加纤增强增韧PC/PET共混合金。

Claims (3)

1.一种抗静电加纤增强增韧PC/PET共混合金,其特征在于,其组分按质量百分数配比为:PC 50%~70%、PET 20%~30%、无碱玻璃纤维5%~15%、POE-g-GMA 3%~8%、GMS 1%~3%、SMA 2%~5%、抗氧剂0.1%~0.5%、TAF 0.1%~1.5%。
2.根据权利要求1所述的抗静电加纤增强增韧PC/PET共混合金,其特征在于,所述的无碱玻璃纤维为直径在8~15μm、长度为3~6mm、且表面经过硅烷偶联剂处理后的无碱玻璃纤维。
3.根据权利要求1所述的抗静电加纤增强增韧PC/PET共混合金的制备方法,其特征在于,包括以下步骤:
(1)、将PC在鼓风干燥机中于110℃~130℃温度下干燥3~4小时,PET在130℃~150℃下干燥3~4小时,待用;
(2)、将按重量配比称取干燥的PET、GMS和TAF,分别加入高速混合机中,使一起搅拌2~10分钟后,出料加入双螺杆挤出机中,在230℃~280℃下熔融共混后挤出、冷却造粒,并干燥后制得PET抗静电母料,待用;
(3)、将按重量配比称取干燥的PC和步骤(2)制得的PET抗静电母料加入高速混合机中,同时加入按重量配比称取的POE-g-GMA、SMA、抗氧剂,使一起搅拌3~15分钟预混后,出料加入双螺杆挤出机的主喂料口,同时从双螺杆挤出机的侧喂料口加入将按重量配比称取的无碱玻璃纤维,控制加工温度在230℃~260℃,螺杆转速150~400r/min,经过双螺杆挤出机充分塑化共混后挤出、冷却造粒,即得本发明的抗静电加纤增强增韧PC/PET共混合金。
CN201310650968.4A 2013-12-08 2013-12-08 抗静电加纤增强增韧pc/pet共混合金 Pending CN104693731A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104927336A (zh) * 2015-07-15 2015-09-23 上海锦湖日丽塑料有限公司 一种耐湿热老化、高pu泡沫结合强度pc/sma材料

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104927336A (zh) * 2015-07-15 2015-09-23 上海锦湖日丽塑料有限公司 一种耐湿热老化、高pu泡沫结合强度pc/sma材料
CN104927336B (zh) * 2015-07-15 2016-08-17 上海锦湖日丽塑料有限公司 一种耐湿热老化、高pu泡沫结合强度pc/sma材料

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