CN103709619A - 玻纤阻燃微米碳酸钙增韧增强pbt复合材料 - Google Patents

玻纤阻燃微米碳酸钙增韧增强pbt复合材料 Download PDF

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CN103709619A
CN103709619A CN201210368751.XA CN201210368751A CN103709619A CN 103709619 A CN103709619 A CN 103709619A CN 201210368751 A CN201210368751 A CN 201210368751A CN 103709619 A CN103709619 A CN 103709619A
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calcium carbonate
retardant
pbt
micro
fire
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Qingdao Xinzhan Plastic Co Ltd
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B2009/125—Micropellets, microgranules, microparticles
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

本发明公开了一种玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其组分按质量百分数配比为：PBT50%～70%、玻璃纤维10%～20%、复配型阻燃剂6%～20%、微米碳酸钙5%～15%、表面处理剂0.1%～0.3%、抗氧剂0.1%～1%、润滑剂0.2%～1.5%、其他添加剂0～1%。本发明的有益效果是，在PBT中加入经表面处理的微米碳酸钙，可以大幅度提高材料的缺口冲击韧性的同时，提高其刚度和耐热性，而且加入适量的玻璃纤维、复配型阻燃剂和抗氧剂等，使保持较好的力学强度和具有阻燃效能高、加工性好、成本低等特点，可广泛应用在电子电气、汽车工业等领域。

Description

玻纤阻燃微米碳酸钙增韧增强PBT复合材料
技术领域
本发明涉及一种高分子材料，具体地说是一种玻纤阻燃微米碳酸钙增韧增强PBT复合材料。
背景技术
聚对苯二甲酸丁二醇酯（PBT）是一种结晶型线形饱和聚酯树脂，并在许多领域获得了广泛应用。然而，由于纯PBT材料的阻燃性差、缺口冲击强度低、脆性大和韧性不足，从而限制了PBT作为高分子结构材料在某些领域中的应用。
发明内容
本发明的目的在于，提供一种显著提高缺口冲击韧性、力学模量、耐热性和阻燃性能的玻纤阻燃微米碳酸钙增韧增强PBT复合材料。
本发明解决其技术问题所采用的技术方案是：玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其组分按质量百分数配比为：PBT 50%～70%、玻璃纤维10%～20%、复配型阻燃剂6%～20%、微米碳酸钙5%～15%、表面处理剂0.1%～0.3%、抗氧剂0.1%～1%、润滑剂0.2%～1.5%、其他添加剂0～1%。
所述的PBT为聚对苯二甲酸丁二醇酯，其特性黏度为0.85～1.2dl/g。
所述的玻璃纤维为无碱短玻璃纤维，其表面经硅烷偶联剂处理。
所述的复配型阻燃剂为聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%三者混合的复配物。
所述的微米碳酸钙的平均粒径在1～10μm之间。
所述的表面处理剂为脂肪酸、硬脂酸钙、硬脂酸钠、硬脂酸镁、铝酸酯和烷基酸盐中的一种。
所述的抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂1010或抗氧剂1076与抗氧剂168的复配物、抗氧剂1010或抗氧剂1076与抗氧剂JC-242的复配物中的一种。
所述的润滑剂为聚硅氧烷、PE蜡、EVA蜡、乙撑双硬酯酰胺中的一种或几种的混合物。
所述的其他添加剂为光稳定剂及色料。
上述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料的制备方法，包括以下步骤：
（1）按重量配比称取聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%，使混合均匀，制得复配型阻燃剂，然后在80℃～85℃下干燥30～45分钟，待用；
（2）将微米碳酸钙与表面处理剂按重量配比称取后，加入超声振荡发生器或高速混合机中，在100℃～120℃温度下搅拌20～100分钟，使均匀分散，然后冷却至低于40℃出料，待用；
（3）将PBT在120℃～130℃下干燥4～6小时，含水率控制在0.03%以下，待用；
（4）按重量配比称取干燥处理后的PBT、复配型阻燃剂、抗氧剂、润滑剂和其他添加剂，加入高速混合机，同时将步骤（2）的经过表面处理剂处理过的微米碳酸钙加入高速混合机，使一起充分混合5～10分钟；
（5）再将步骤（4）的混合物投入双螺杆挤出机的主喂料口，将按重量配比称取的经过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，控制螺杆转速在120～600转/分钟，机筒温度在180℃～250℃，经双螺杆挤出机挤出造粒，即得玻纤阻燃微米碳酸钙增韧增强PBT复合材料。
本发明的有益效果是，在PBT中加入经表面处理的微米碳酸钙，可以大幅度提高材料的缺口冲击韧性的同时，提高其刚度和耐热性，而且加入适量的玻璃纤维、复配型阻燃剂和抗氧剂等，使保持较好的力学强度和具有阻燃效能高、加工性好、成本低等特点，可广泛应用在电子电气、汽车工业等领域。
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：
一种玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其组分按质量百分数配比为：PBT 60%、无碱短玻璃纤维15%、复配型阻燃剂12%、微米碳酸钙10%、硬脂酸钙0.2%、抗氧剂1010 1%、聚硅氧烷1.2%、其他添加剂0.6%，其中，PBT的特性黏度为0.85～1.2dl/g，微米碳酸钙的平均粒径在1～10μm之间，无碱短玻璃纤维的表面经硅烷偶联剂处理，复配型阻燃剂是聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%三者混合的复配物，其他添加剂为光稳定剂及色料。
制备方法：（1）按重量配比称取聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%，使混合均匀，制得复配型阻燃剂，然后在80℃～85℃下干燥30～45分钟，待用；（2）将微米碳酸钙与硬脂酸钙按重量配比称取后，加入超声振荡发生器或高速混合机中，在100℃～120℃温度下搅拌20～100分钟，使均匀分散，然后冷却至低于40℃出料，待用；（3）将PBT在120℃～130℃下干燥4～6小时，含水率控制在0.03%以下，待用；（4）按重量配比称取干燥处理后的PBT、复配型阻燃剂、抗氧剂1010、聚硅氧烷和其他添加剂，加入高速混合机，同时将步骤（2）的经过硬脂酸钙处理过的微米碳酸钙加入高速混合机，使一起充分混合5～10分钟；（5）再将步骤（4）的混合物投入双螺杆挤出机的主喂料口，将按重量配比称取的经过硅烷偶联剂处理过的无碱短玻璃纤维从双螺杆挤出机的侧喂料口加入，控制螺杆转速在120～600转/分钟，机筒温度在180℃～250℃，经双螺杆挤出机挤出造粒，即得玻纤阻燃微米碳酸钙增韧增强PBT复合材料。
实施例2：
一种玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其组分按质量百分数配比为：PBT 50%、无碱短玻璃纤维20%、复配型阻燃剂20%、微米碳酸钙8%、脂肪酸0.1%、抗氧剂1010与抗氧剂168的复配物0.5%、乙撑双硬酯酰1%、其他添加剂0.4%，其中，PBT的特性黏度为0.85～1.2dl/g，微米碳酸钙的平均粒径在1～10μm之间，无碱短玻璃纤维的表面经硅烷偶联剂处理，复配型阻燃剂是聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%三者混合的复配物，其他添加剂为光稳定剂及色料。
制备方法：（1）按重量配比称取聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%，使混合均匀，制得复配型阻燃剂，然后在80℃～85℃下干燥30～45分钟，待用；（2）将微米碳酸钙与脂肪酸按重量配比称取后，加入超声振荡发生器或高速混合机中，在100℃～120℃温度下搅拌20～100分钟，使均匀分散，然后冷却至低于40℃出料，待用；（3）将PBT在120℃～130℃下干燥4～6小时，含水率控制在0.03%以下，待用；（4）按重量配比称取干燥处理后的PBT、复配型阻燃剂、抗氧剂1010与抗氧剂168的复配物、乙撑双硬酯酰和其他添加剂，加入高速混合机，同时将步骤（2）的经过脂肪酸处理过的微米碳酸钙加入高速混合机，使一起充分混合5～10分钟；（5）再将步骤（4）的混合物投入双螺杆挤出机的主喂料口，将按重量配比称取的经过硅烷偶联剂处理过的无碱短玻璃纤维从双螺杆挤出机的侧喂料口加入，控制螺杆转速在120～600转/分钟，机筒温度在180℃～250℃，经双螺杆挤出机挤出造粒，即得玻纤阻燃微米碳酸钙增韧增强PBT复合材料。
实施例3：
一种玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其组分按质量百分数配比为：PBT 70%、无碱短玻璃纤维10%、复配型阻燃剂9%、微米碳酸钙10%、硬脂酸镁0.1%、抗氧剂1076与抗氧剂JC-242的复配物0.4%、EVA蜡0.5%，其中，PBT的特性黏度为0.85～1.2dl/g，微米碳酸钙的平均粒径在1～10μm之间，无碱短玻璃纤维的表面经硅烷偶联剂处理，复配型阻燃剂是聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%三者混合的复配物。
制备方法：（1）按重量配比称取聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%，使混合均匀，制得复配型阻燃剂，然后在80℃～85℃下干燥30～45分钟，待用；（2）将微米碳酸钙与硬脂酸镁按重量配比称取后，加入超声振荡发生器或高速混合机中，在100℃～120℃温度下搅拌20～100分钟，使均匀分散，然后冷却至低于40℃出料，待用；（3）将PBT在120℃～130℃下干燥4～6小时，含水率控制在0.03%以下，待用；（4）按重量配比称取干燥处理后的PBT、复配型阻燃剂、抗氧剂1076与抗氧剂JC-242的复配物和EVA蜡，加入高速混合机，同时将步骤（2）的经过硬脂酸镁处理过的微米碳酸钙加入高速混合机，使一起充分混合5～10分钟；（5）再将步骤（4）的混合物投入双螺杆挤出机的主喂料口，将按重量配比称取的经过硅烷偶联剂处理过的无碱短玻璃纤维从双螺杆挤出机的侧喂料口加入，控制螺杆转速在120～600转/分钟，机筒温度在180℃～250℃，经双螺杆挤出机挤出造粒，即得玻纤阻燃微米碳酸钙增韧增强PBT复合材料。

Claims (10)

1.一种玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，其组分按质量百分数配比为：PBT 50%～70%、玻璃纤维10%～20%、复配型阻燃剂6%～20%、微米碳酸钙5%～15%、表面处理剂0.1%～0.3%、抗氧剂0.1%～1%、润滑剂0.2%～1.5%、其他添加剂0～1%。
2.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的PBT为聚对苯二甲酸丁二醇酯，其特性黏度为0.85～1.2dl/g。
3.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的玻璃纤维为无碱短玻璃纤维，其表面经硅烷偶联剂处理。
4.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的复配型阻燃剂为聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%三者混合的复配物。
5.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的微米碳酸钙的平均粒径在1～10μm之间。
6.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的表面处理剂为脂肪酸、硬脂酸钙、硬脂酸钠、硬脂酸镁、铝酸酯和烷基酸盐中的一种。
7.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的抗氧剂为抗氧剂1010、抗氧剂1076、抗氧剂1010或抗氧剂1076与抗氧剂168的复配物、抗氧剂1010或抗氧剂1076与抗氧剂JC-242的复配物中的一种。
8.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的润滑剂为聚硅氧烷、PE蜡、EVA蜡、乙撑双硬酯酰胺中的一种或几种的混合物。
9.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料，其特征在于，所述的其他添加剂为光稳定剂及色料。
10.根据权利要求1所述的玻纤阻燃微米碳酸钙增韧增强PBT复合材料的制备方法，其特征在于，包括以下步骤：
（1）按重量配比称取聚2，6-二溴亚苯基醚（PBO）50wt%、聚磷酸密胺盐（MPP）25wt%和滑石粉25wt%，使混合均匀，制得复配型阻燃剂，然后在80℃～85℃下干燥30～45分钟，待用；
（2）将微米碳酸钙与表面处理剂按重量配比称取后，加入超声振荡发生器或高速混合机中，在100℃～120℃温度下搅拌20～100分钟，使均匀分散，然后冷却至低于40℃出料，待用；
（3）将PBT在120℃～130℃下干燥4～6小时，含水率控制在0.03%以下，待用；
（4）按重量配比称取干燥处理后的PBT、复配型阻燃剂、抗氧剂、润滑剂和其他添加剂，加入高速混合机，同时将步骤（2）的经过表面处理剂处理过的微米碳酸钙加入高速混合机，使一起充分混合5～10分钟；
（5）再将步骤（4）的混合物投入双螺杆挤出机的主喂料口，将按重量配比称取的经过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，控制螺杆转速在120～600转/分钟，机筒温度在180℃～250℃，经双螺杆挤出机挤出造粒，即得玻纤阻燃微米碳酸钙增韧增强PBT复合材料。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105885363A (zh) * 2016-07-04 2016-08-24 蚌埠市正园电子科技有限公司 一种具有环氧树脂粘结性的微米碳酸钙改性pbt材料及其制备方法
CN112266489A (zh) * 2020-07-27 2021-01-26 苏州市新广益电子有限公司 一种环保节能pbt薄膜生产工艺
CN112280254A (zh) * 2020-07-27 2021-01-29 苏州市新广益电子有限公司 一种环保pbt家装膜及应用该膜生产的胶带

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105885363A (zh) * 2016-07-04 2016-08-24 蚌埠市正园电子科技有限公司 一种具有环氧树脂粘结性的微米碳酸钙改性pbt材料及其制备方法
CN112266489A (zh) * 2020-07-27 2021-01-26 苏州市新广益电子有限公司 一种环保节能pbt薄膜生产工艺
CN112280254A (zh) * 2020-07-27 2021-01-29 苏州市新广益电子有限公司 一种环保pbt家装膜及应用该膜生产的胶带
CN112266489B (zh) * 2020-07-27 2023-05-05 苏州市新广益电子股份有限公司 一种环保节能pbt薄膜生产工艺
CN112280254B (zh) * 2020-07-27 2023-06-02 苏州市新广益电子股份有限公司 一种环保pbt家装膜及应用该膜生产的胶带

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