CN104419180A - 一种玻纤增强无卤阻燃高韧性pc复合材料 - Google Patents

一种玻纤增强无卤阻燃高韧性pc复合材料 Download PDF

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CN104419180A
CN104419180A CN201310399299.8A CN201310399299A CN104419180A CN 104419180 A CN104419180 A CN 104419180A CN 201310399299 A CN201310399299 A CN 201310399299A CN 104419180 A CN104419180 A CN 104419180A
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Abstract

本发明公开了一种玻纤增强无卤阻燃高韧性PC复合材料,其组分按质量百分数配比为:PC60%~90%、玻璃纤维5%~20%、阻燃母粒2%~6%、抗冲击改性剂5%~10%、相容剂1%~3%、抗氧剂0.1%~0.5%、润滑剂0.1%~2%。本发明的有益效果是,本发明采用玻纤增强、阻燃母粒改性和抗冲击改性剂增韧,并添加适量其它助剂,使制得的PC复合材料具有强度高、力学性能优异,抗冲效率高、耐热性能好,阻燃效率高、添加量少且无卤环保、安全和达到UL94V-0级阻燃性能,而且加工性能好,流动性高,耐磨、耐温和耐腐蚀性能强,在电子电器、汽车、机械零部件、建筑材料、医疗器械、体育用品、光学仪器、包装等领域具有很好的应用前景。

Description

一种玻纤增强无卤阻燃高韧性PC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无卤阻燃高韧性PC复合材料。
背景技术
聚碳酸酯(PC)具有突出的冲击性能、透明性、尺寸稳定性,优良的力学性能和电性能,较高的玻璃化转变温度(140℃~150℃)、热变形温度(132℃~138℃),以及较宽的使用温度范围(-60℃~120℃)广泛应用于电子电气、建筑、包装、医疗器械、光学仪器、交通运输等领域。但它也存在一点缺点,如阻燃性不高(氧指数为21%~24%)、不能满足高阻燃性能的市场需求,加工性能差、容易应力开裂,耐缺口比较敏感,耐化学药品性差等。因此,对聚碳酸酯进行必要的功能改性是弥补其性能上的不足、实现高性能化、降低生产成本和拓宽应用领域的有效途径。
发明内容
本发明的目的在于提供一种玻纤增强无卤阻燃高韧性PC复合材料。
本发明解决其技术问题所采用的技术方案是:一种玻纤增强无卤阻燃高韧性PC复合材料,其组分按质量百分数配比为:PC 60%~90%、玻璃纤维5%~20%、阻燃母粒2%~6%、抗冲击改性剂5%~10%、相容剂1%~3%、抗氧剂0.1%~0.5%、润滑剂0.1%~2%。
所述的PC为双酚A型芳香族聚碳酸酯,重均分子量为18000~35000g/mol。
所述的玻璃纤维为表面经硅烷偶联剂处理过的无碱短切玻璃纤维,其直径为8~12μm,长度为3~6mm,长径比为7~9。
所述的阻燃母粒是由PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%组成而制得的阻燃母粒。
所述的抗冲击改性剂为聚丙烯酸正丁酯(PBA)为核、聚甲基丙烯酸甲酯(PMMA)为壳和壳层接枝甲基丙烯酸缩水甘油酯(GMA)的核壳型改性剂(PBA/PMMA-g-GMA)。
所述的相容剂为聚甲基丙烯酸甲酯接枝马来酸酐(PMMA-g-MAH)。
所述的抗氧剂为受阻酚类抗氧剂1010与亚磷酸酯类抗氧剂168按质量1:1比例的复配物。
所述的润滑剂为季戊四醇硬脂酸酯(PETS)。
上述的一种玻纤增强无卤阻燃高韧性PC复合材料的制备方法,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,待用;
(2)、制备阻燃母粒:按重量配比称取PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机熔融挤出、冷却切粒并干燥后制得阻燃母粒,待用;
(3)、按重量配比称取干燥的PC和其它各组成,加入高速混合机中,搅拌5~30分钟,使混合均匀后出料;
(4)、将步骤(3)的混合料加入双螺杆挤出机中,在260℃~290℃下经熔融混炼挤出、冷却造粒,即得成品。
本发明的有益效果是,与现有技术相比,本发明采用玻纤增强、阻燃母粒改性和抗冲击改性剂增韧,并添加适量其它助剂,使制得的PC复合材料具有强度高、力学性能优异,抗冲效率高、耐热性能好,阻燃效率高、添加量少且无卤环保、安全和达到UL94 V-0级阻燃性能,而且加工性能好,流动性高,耐磨、耐温和耐腐蚀性能强,在电子电器、汽车、机械零部件、建筑材料、医疗器械、体育用品、光学仪器、包装等领域具有很好的应用前景。
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:
一种玻纤增强无卤阻燃高韧性PC复合材料,其组分按质量百分数配比为:PC 70%、玻璃纤维15%、阻燃母粒4%、抗冲击改性剂8%、聚甲基丙烯酸甲酯接枝马来酸酐(PMMA-g-MAH)2%、受阻酚类抗氧剂1010与亚磷酸酯类抗氧剂168按质量1:1比例的复配物0.2%、季戊四醇硬脂酸酯(PETS)0.8%。其中,所述的PC为双酚A型芳香族聚碳酸酯,重均分子量为18000~35000g/mol;所述的玻璃纤维为表面经硅烷偶联剂处理过的无碱短切玻璃纤维,其直径为8~12μm,长度为3~6mm,长径比为7~9;所述的阻燃母粒是由PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%组成而制得的阻燃母粒;所述的抗冲击改性剂为聚丙烯酸正丁酯(PBA)为核、聚甲基丙烯酸甲酯(PMMA)为壳和壳层接枝甲基丙烯酸缩水甘油酯(GMA)的核壳型改性剂(PBA/PMMA-g-GMA)。
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,待用;(2)、制备阻燃母粒:按重量配比称取PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机熔融挤出、冷却切粒并干燥后制得阻燃母粒,待用;(3)、按重量配比称取干燥的PC和其它各组成,加入高速混合机中,搅拌5~30分钟,使混合均匀后出料;(4)、将步骤(3)的混合料加入双螺杆挤出机中,在260℃~290℃下经熔融混炼挤出、冷却造粒,即得成品。
实施例2:
一种玻纤增强无卤阻燃高韧性PC复合材料,其组分按质量百分数配比为:PC 80、玻璃纤维10%、阻燃母粒2%、抗冲击改性剂5%、聚甲基丙烯酸甲酯接枝马来酸酐(PMMA-g-MAH)1.5%、受阻酚类抗氧剂1010与亚磷酸酯类抗氧剂168按质量1:1比例的复配物0.3%、季戊四醇硬脂酸酯(PETS)1.2%。其中,所述的PC为双酚A型芳香族聚碳酸酯,重均分子量为18000~35000g/mol;所述的玻璃纤维为表面经硅烷偶联剂处理过的无碱短切玻璃纤维,其直径为8~12μm,长度为3~6mm,长径比为7~9;所述的阻燃母粒是由PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%组成而制得的阻燃母粒;所述的抗冲击改性剂为聚丙烯酸正丁酯(PBA)为核、聚甲基丙烯酸甲酯(PMMA)为壳和壳层接枝甲基丙烯酸缩水甘油酯(GMA)的核壳型改性剂(PBA/PMMA-g-GMA)。
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,待用;(2)、制备阻燃母粒:按重量配比称取PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机熔融挤出、冷却切粒并干燥后制得阻燃母粒,待用;(3)、按重量配比称取干燥的PC和其它各组成,加入高速混合机中,搅拌5~30分钟,使混合均匀后出料;(4)、将步骤(3)的混合料加入双螺杆挤出机中,在260℃~290℃下经熔融混炼挤出、冷却造粒,即得成品。

Claims (8)

1.一种玻纤增强无卤阻燃高韧性PC复合材料,其特征在于,其组分按质量百分数配比为:PC 60%~90%、玻璃纤维5%~20%、阻燃母粒2%~6%、抗冲击改性剂5%~10%、相容剂1%~3%、抗氧剂0.1%~0.5%、润滑剂0.1%~2%。
2.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC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过的无碱短切玻璃纤维,其直径为8~12μm,长度为3~6mm,长径比为7~9。
3.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC复合材料,其特征在于,所述的阻燃母粒是由PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%组成而制得的阻燃母粒。
4.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC复合材料,其特征在于,所述的抗冲击改性剂为聚丙烯酸正丁酯(PBA)为核、聚甲基丙烯酸甲酯(PMMA)为壳和壳层接枝甲基丙烯酸缩水甘油酯(GMA)的核壳型改性剂(PBA/PMMA-g-GMA)。
5.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC复合材料,其特征在于,所述的相容剂为聚甲基丙烯酸甲酯接枝马来酸酐(PMMA-g-MAH)。
6.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC复合材料,其特征在于,所述的抗氧剂为受阻酚类抗氧剂1010与亚磷酸酯类抗氧剂168按质量1:1比例的复配物。
7.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC复合材料,其特征在于,所述的润滑剂为季戊四醇硬脂酸酯(PETS)。
8.根据权利要求1所述的一种玻纤增强无卤阻燃高韧性PC复合材料的制备方法,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,待用;
(2)、制备阻燃母粒:按重量配比称取PC 30wt%、聚二甲基硅氧烷(PDMS)60wt%、全氟丁基磺酸钾(PPFBS)5wt%和季戊四醇硬脂酸酯(PETS)5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机熔融挤出、冷却切粒并干燥后制得阻燃母粒,待用;
(3)、按重量配比称取干燥的PC和其它各组成,加入高速混合机中,搅拌5~30分钟,使混合均匀后出料;
(4)、将步骤(3)的混合料加入双螺杆挤出机中,在260℃~290℃下经熔融混炼挤出、冷却造粒,即得成品。
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