CN104861620A - 无卤阻燃增强pc/pbt合金及其制备方法 - Google Patents

无卤阻燃增强pc/pbt合金及其制备方法 Download PDF

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CN104861620A
CN104861620A CN201410685607.8A CN201410685607A CN104861620A CN 104861620 A CN104861620 A CN 104861620A CN 201410685607 A CN201410685607 A CN 201410685607A CN 104861620 A CN104861620 A CN 104861620A
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Abstract

本发明公开了一种无卤阻燃增强PC/PBT合金及其制备方法。本发明的无卤阻燃增强PC/PBT合金,其组分按质量百分数配比为:PC 30%~60%、PBT 20%~30%、相容剂1%~4%、亚磷酸三苯酯0.1%~1%、无卤阻燃母粒3%~12%、玻璃纤维8%~15%、增韧剂4%~8%、抗氧剂0.1%~0.5%、润滑剂0.1%~1%。本发明的有益效果是,本发明在具有PC的优异抗冲击性能和PBT的良好耐化学品性能的同时,还具有优异的抗冲击性和保持较高的力学强度,而且阻燃性能好,满足无卤、低烟、高效和UL94 V-0级的阻燃要求,从而大大提升了PC/PBT合金的应用效果和应用领域。

Description

无卤阻燃增强PC/PBT合金及其制备方法
技术领域
本发明涉及高分子材料技术领域,具体地说是一种无卤阻燃增强PC/PBT合金及其制备方法。
背景技术
PC/PBT(聚碳酸酯/聚对苯二甲酸丁二醇酯)合金材料具有高的耐热性、良好的冲击性能和优良的耐化学性等优点,目前已在许多领域中得到了广泛的应用。但未经改性的PC/PBT却存在相容性不好、阻燃性差的问题,这将大大地限制了其的应用范围。
发明内容
本发明的目的在于提供一种力学性能好、阻燃性能优异的无卤阻燃增强PC/PBT合金及其制备方法。
本发明解决其技术问题所采用的技术方案是:无卤阻燃增强PC/PBT合金,其组分按质量百分数配比为:PC 30%~60%、PBT 20%~30%、相容剂1%~4%、亚磷酸三苯酯0.1%~1%、无卤阻燃母粒3%~12%、玻璃纤维8%~15%、增韧剂4%~8%、抗氧剂0.1%~0.5%、润滑剂0.1%~1%。
所述PC为双酚A型芳香族聚碳酸酯,重均分子量为20000~30000g/mol。
所述PBT为聚对苯二甲酸丁二醇酯,其特征粘度为0.8~1.5dL/g。
所述相容剂为甲基丙烯酸缩水甘油酯-苯乙烯-丙烯腈三元共聚物GMA-St-AN,且甲基丙烯酸缩水甘油酯占1 wt%~5 wt%、丙烯腈占27 wt%~30 wt%。
所述无卤阻燃母粒是由PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%组成而制得的无卤阻燃母粒。
所述玻璃纤维为表面经过硅烷偶联剂改性处理、且直径在8~12μm、长度在3~6mm范围内的无碱玻璃纤维。
所述增韧剂为苯乙烯-丁二烯-苯乙烯嵌段共聚物SBS、甲基丙烯酸甲酯-丁二烯-苯乙烯三元共聚物MBS、甲基丙烯酸酯-丙烯酸酯共聚物ACR、热塑性聚酯弹性体TPEE、聚烯烃弹性体POE中的一种。
所述抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂1010或抗氧剂1076与抗氧剂168的复配物中的一种。
所述润滑剂为季戊四醇硬脂酸酯或改性乙撑双脂肪酸酰胺。
上述的无卤阻燃增强PC/PBT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,PBT在130℃~150℃下干燥3~4小时,待用;
(2)、制备无卤阻燃母粒:将按重量配比称取PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机中熔融挤出、冷却造粒并干燥后制得无卤无磷阻燃母粒,待用;
(3)、将按重量配比称取干燥的PC和PBT加入高速混合机中,同时按重量配比加入相容剂、亚磷酸三苯酯、增韧剂、抗氧剂、润滑剂,并按重量配比加入步骤(2)制得的无卤阻燃母粒,使一起搅拌3~15分钟,待充分混合均匀后出料;
(4)、将步骤(3)的混合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按重量配比称取的玻璃纤维,通过双螺杆挤出机熔融混炼1~2分钟,螺杆转速控制在150~600r/min,加工温度在210℃~260℃范围,然后挤出造粒,即得本发明的无卤阻燃增强PC/PBT合金。
本发明的有益效果是,本发明在具有PC的优异抗冲击性能和PBT的良好耐化学品性能的同时,还具有优异的抗冲击性和保持较高的力学强度,而且阻燃性能好,满足无卤、低烟、高效和UL94 V-0级的阻燃要求,从而大大提升了PC/PBT合金的应用效果和应用领域。
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。
实施例1:
一种无卤阻燃增强PC/PBT合金,其组分按质量百分数配比为:PC 41%、PBT 20%、相容剂2.5%、亚磷酸三苯酯0.5%、无卤阻燃母粒12%、玻璃纤维15%、MBS 8%、抗氧剂1010 0.2%、改性乙撑双脂肪酸酰胺0.8%,所述PC的重均分子量为20000~30000g/mol,所述PBT的特征粘度为0.8~1.5dL/g;所述相容剂为甲基丙烯酸缩水甘油酯-苯乙烯-丙烯腈三元共聚物GMA-St-AN,且甲基丙烯酸缩水甘油酯占1 wt%~5 wt%、丙烯腈占27 wt%~30 wt%;所述无卤阻燃母粒是由PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%组成而制得的无卤阻燃母粒;所述玻璃纤维为表面经过硅烷偶联剂改性处理、且直径在8~12μm、长度在3~6mm范围内的无碱玻璃纤维。
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,PBT在130℃~150℃下干燥3~4小时,待用;(2)、制备无卤阻燃母粒:将按重量配比称取PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机中熔融挤出、冷却造粒并干燥后制得无卤无磷阻燃母粒,待用;(3)、将按重量配比称取干燥的PC和PBT加入高速混合机中,同时按重量配比加入相容剂、亚磷酸三苯酯、MBS、抗氧剂1010、改性乙撑双脂肪酸酰胺,并按重量配比加入步骤(2)制得的无卤阻燃母粒,使一起搅拌3~15分钟,待充分混合均匀后出料;(4)、将步骤(3)的混合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按重量配比称取的玻璃纤维,通过双螺杆挤出机熔融混炼1~2分钟,螺杆转速控制在150~600r/min,加工温度在210℃~260℃范围,然后挤出造粒,即得本发明的无卤阻燃增强PC/PBT合金。
实施例2:
一种无卤阻燃增强PC/PBT合金,其组分按质量百分数配比为:PC 42%、PBT 30%、相容剂4%、亚磷酸三苯酯1%、无卤阻燃母粒8%、玻璃纤维8%、TPEE 6%、抗氧剂1076与抗氧剂168的复配物0.2%、改性乙撑双脂肪酸酰胺0.8%,所述PC的重均分子量为20000~30000g/mol,所述PBT的特征粘度为0.8~1.5dL/g;所述相容剂为甲基丙烯酸缩水甘油酯-苯乙烯-丙烯腈三元共聚物GMA-St-AN,且甲基丙烯酸缩水甘油酯占1 wt%~5 wt%、丙烯腈占27 wt%~30 wt%;所述无卤阻燃母粒是由PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%组成而制得的无卤阻燃母粒;所述玻璃纤维为表面经过硅烷偶联剂改性处理、且直径在8~12μm、长度在3~6mm范围内的无碱玻璃纤维。
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,PBT在130℃~150℃下干燥3~4小时,待用;(2)、制备无卤阻燃母粒:将按重量配比称取PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机中熔融挤出、冷却造粒并干燥后制得无卤无磷阻燃母粒,待用;(3)、将按重量配比称取干燥的PC和PBT加入高速混合机中,同时按重量配比加入相容剂、亚磷酸三苯酯、TPEE、抗氧剂1076与抗氧剂168的复配物、改性乙撑双脂肪酸酰胺,并按重量配比加入步骤(2)制得的无卤阻燃母粒,使一起搅拌3~15分钟,待充分混合均匀后出料;(4)、将步骤(3)的混合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按重量配比称取的玻璃纤维,通过双螺杆挤出机熔融混炼1~2分钟,螺杆转速控制在150~600r/min,加工温度在210℃~260℃范围,然后挤出造粒,即得本发明的无卤阻燃增强PC/PBT合金。

Claims (8)

1.一种无卤阻燃增强PC/PBT合金,其特征在于,其组分按质量百分数配比为:PC 30%~60%、PBT 20%~30%、相容剂1%~4%、亚磷酸三苯酯0.1%~1%、无卤阻燃母粒3%~12%、玻璃纤维8%~15%、增韧剂4%~8%、抗氧剂0.1%~0.5%、润滑剂0.1%~1%。
2.根据权利要求1所述的无卤阻燃增强PC/PBT合金,其特征在于,所述相容剂为甲基丙烯酸缩水甘油酯-苯乙烯-丙烯腈三元共聚物GMA-St-AN,且甲基丙烯酸缩水甘油酯占1 wt%~5 wt%、丙烯腈占27 wt%~30 wt%。
3.根据权利要求1所述的无卤阻燃增强PC/PBT合金,其特征在于,所述无卤阻燃母粒是由PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%组成而制得的无卤阻燃母粒。
4.根据权利要求1所述的无卤阻燃增强PC/PBT合金,其特征在于,所述玻璃纤维为表面经过硅烷偶联剂改性处理、且直径在8~12μm、长度在3~6mm范围内的无碱玻璃纤维。
5.根据权利要求1所述的无卤阻燃增强PC/PBT合金,其特征在于,所述增韧剂为苯乙烯-丁二烯-苯乙烯嵌段共聚物SBS、甲基丙烯酸甲酯-丁二烯-苯乙烯三元共聚物MBS、甲基丙烯酸酯-丙烯酸酯共聚物ACR、热塑性聚酯弹性体TPEE、聚烯烃弹性体POE中的一种。
6.根据权利要求1所述的无卤阻燃增强PC/PBT合金,其特征在于,所述抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂1010或抗氧剂1076与抗氧剂168的复配物中的一种。
7.根据权利要求1所述的无卤阻燃增强PC/PBT合金,其特征在于,所述润滑剂为季戊四醇硬脂酸酯或改性乙撑双脂肪酸酰胺。
8.根据权利要求1所述的无卤阻燃增强PC/PBT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,PBT在130℃~150℃下干燥3~4小时,待用;
(2)、制备无卤阻燃母粒:将按重量配比称取PBT树脂30wt%、聚二甲基硅氧烷60wt%、苯磺酰基苯磺酸钾2wt%、聚四氟乙烯3wt%和季戊四醇硬脂酸酯5wt%,加入高速混合器中搅拌均匀后,出料加入双螺杆挤出机中熔融挤出、冷却造粒并干燥后制得无卤无磷阻燃母粒,待用;
(3)、将按重量配比称取干燥的PC和PBT加入高速混合机中,同时按重量配比加入相容剂、亚磷酸三苯酯、增韧剂、抗氧剂、润滑剂,并按重量配比加入步骤(2)制得的无卤阻燃母粒,使一起搅拌3~15分钟,待充分混合均匀后出料;
(4)、将步骤(3)的混合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按重量配比称取的玻璃纤维,通过双螺杆挤出机熔融混炼1~2分钟,螺杆转速控制在150~600r/min,加工温度在210℃~260℃范围,然后挤出造粒,即得本发明的无卤阻燃增强PC/PBT合金。
CN201410685607.8A 2014-11-25 2014-11-25 无卤阻燃增强pc/pbt合金及其制备方法 Pending CN104861620A (zh)

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CN109161180A (zh) * 2018-08-02 2019-01-08 广东顺德顺炎新材料股份有限公司 高表观性能玻纤增强pc/pbt合金汽车雨刮器材料及制备
CN109867922A (zh) * 2018-12-28 2019-06-11 聚石化学(苏州)有限公司 一种与环氧树脂粘接性优异的无卤阻燃增强pbt复合材料及其制备方法
JP2019210397A (ja) * 2018-06-06 2019-12-12 三菱エンジニアリングプラスチックス株式会社 高濃度リン系難燃剤マスターバッチ、ポリカーボネート樹脂組成物、及びマスターバッチの製造方法

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JP2019210397A (ja) * 2018-06-06 2019-12-12 三菱エンジニアリングプラスチックス株式会社 高濃度リン系難燃剤マスターバッチ、ポリカーボネート樹脂組成物、及びマスターバッチの製造方法
JP7060452B2 (ja) 2018-06-06 2022-04-26 三菱エンジニアリングプラスチックス株式会社 高濃度リン系難燃剤マスターバッチ、ポリカーボネート樹脂組成物、及びマスターバッチの製造方法
CN109161180A (zh) * 2018-08-02 2019-01-08 广东顺德顺炎新材料股份有限公司 高表观性能玻纤增强pc/pbt合金汽车雨刮器材料及制备
CN109161180B (zh) * 2018-08-02 2020-11-20 广东顺德顺炎新材料股份有限公司 高表观性能玻纤增强pc/pbt合金汽车雨刮器材料及制备
CN109867922A (zh) * 2018-12-28 2019-06-11 聚石化学(苏州)有限公司 一种与环氧树脂粘接性优异的无卤阻燃增强pbt复合材料及其制备方法

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