CN109181303A - 纤维增强高填充聚苯硫醚复合材料及其制备方法 - Google Patents
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Abstract
本发明涉及一种纤维增强高填充聚苯硫醚复合材料及其制备方法,属于复合材料技术领域。解决了现有技术中纤维改性的聚苯硫醚综合性能降低的技术问题。本发明的复合材料,由100重量份聚苯硫醚、10‑15重量份聚氨酯、2‑4重量份二月桂酸二正丁基锡、2‑4重量份铝酸钙、2‑4重量份硅灰石、2‑4重量份玄武岩纤维、4‑8重量份间位芳酞胺纤维、1‑3重量份碳化硅晶须、4‑5.5重量份硅酮、3‑5重量份十二烷基苯磺酸钠、15‑20重量份聚乙烯蜡、3‑5重量份超细碳酸钙、0.5‑2重量份抗氧剂、2‑4重量份偶联剂和3‑5重量份增容剂组成。该复合材料既具备优异的抗冲击性,又能兼顾综合性能,热变形温度、机械强度良好。
Description
技术领域
本发明属于复合材料技术领域,具体涉及一种纤维增强高填充聚苯硫醚复合材料及其制备方法。
背景技术
聚苯硫醚全称为聚苯基硫醚,是分子主链中带有苯硫基的热塑性树脂。具有优良的耐高温,耐腐蚀、耐辐射、阻燃性、均衡的物理机械性能、极好的尺寸稳定性和优异的电性能,热变形温度(1.8MPa,未退火,3.20mm)为93.0℃,拉伸模量为2500MPa,弯曲模量为3300MPa,悬壁梁缺口冲击强度(23℃)为29J/m。因此在汽车制造、电子电气、化工、仪器仪表和航天工业等方面具有广泛的应用。
但由于PPS主链上大量的苯环增加了高分子链的刚性,其韧性变差,因而在应用中受到了一定的限制。现有技术中,通常采用纤维材料改善其韧性,但添加纤维后,复合材料的密度增大、流动性较差,表面粗糙度增加,因而损坏PPS其他优越的性能,如大幅度降低PPS材料的热变形温度、机械强度等。
发明内容
本发明的目的是解决现有技术中纤维改性的聚苯硫醚综合性能降低的技术问题,提供一种纤维增强高填充聚苯硫醚复合材料及其制备方法。
本发明解决上述技术问题采取的技术方案如下。
本发明提供的纤维增强高填充聚苯硫醚复合材料,组成及重量份为:
优选的是,所述聚苯硫醚的重均分子量为40000-600000。
优选的是,所述抗氧剂为抗氧剂1010、抗氧剂1098、抗氧剂168中一种或多种。
优选的是,所述的偶联剂为硅烷偶联剂、钛酸酯偶联剂、铝酸酯偶联剂中的一种或多种的混合物。
更优选的是,所述偶联剂为γ-氨丙基三乙氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三乙氧基硅烷、异丙基三硬酯酸钛酸酯、双(二辛氧基焦磷酸酯基)乙撑钛酸酯中的一种或几种的混合物。
优选的是,所述增容剂为马来酸酐接枝线性低密度聚乙烯、马来酸酐接枝苯二烯-乙烯-丁烯-苯乙烯嵌段共聚物、脂肪酸、硬脂酸钙、硬脂酸锌、硅酮粉中的一种或几种。
本发明还提供上述纤维增强高填充聚苯硫醚复合材料的制备方法,步骤如下:
步骤一、按组成及配比,将聚苯硫醚、聚氨酯、二月桂酸二正丁基锡、铝酸钙、硅灰石、玄武岩纤维、间位芳酞胺纤维、碳化硅晶须、硅酮、十二烷基苯磺酸钠、聚乙烯蜡、超细碳酸钙、抗氧剂、偶联剂和增容剂加入高速配料搅拌机中,混合均匀,得到预混料;
步骤二、将预混料加入挤出机中,挤出造粒,得到纤维增强高填充聚苯硫醚复合材料。
优选的是,挤出加工温度为290-330℃。
与现有技术性比,本发明的有益效果为:
本发明提供的纤维增强高填充聚苯硫醚复合材料既具备优异的抗冲击性,又能兼顾综合性能,热变形温度、机械强度良好,经实验检测,该复合材料的拉伸强度为870-1020MPa,弯曲强度为820-970MPa,悬臂梁缺口抗冲击强度为190KJ/m2,热变形温度为207℃以上。
具体实施方式
为了进一步理解本发明,下面结合实施例对本发明优选实施方案进行描述,但是应当理解,这些描述只是为进一步说明本发明的特征和优点,而不是对本发明权利要求的限制。
实施例1
纤维增强高填充复合材料,由100重量份聚苯硫醚、10重量份聚氨酯、2重量份二月桂酸二正丁基锡、2重量份铝酸钙、2重量份硅灰石、2重量份玄武岩纤维、4重量份间位芳酞胺纤维、1重量份碳化硅晶须、4重量份硅酮、3重量份十二烷基苯磺酸钠、15重量份聚乙烯蜡、3重量份超细碳酸钙、0.5重量份抗氧剂1010、2重量份偶联剂γ-氨丙基三乙氧基硅烷和3重量份增容剂硬脂酸锌。
上述纤维增强高填充聚苯硫醚复合材料的制备方法,步骤如下:
步骤一、按组成及配比,将聚苯硫醚、聚氨酯、二月桂酸二正丁基锡、铝酸钙、硅灰石、玄武岩纤维、间位芳酞胺纤维、碳化硅晶须、硅酮、十二烷基苯磺酸钠、聚乙烯蜡、超细碳酸钙、抗氧剂、偶联剂和增容剂加入高速配料搅拌机中,混合均匀,得到预混料;
步骤二、将预混料加入挤出机中,挤出造粒,得到纤维增强高填充聚苯硫醚复合材料。
实施例2
纤维增强高填充复合材料,由100重量份聚苯硫醚、15重量份聚氨酯、4重量份二月桂酸二正丁基锡、4重量份铝酸钙、4重量份硅灰石、4重量份玄武岩纤维、8重量份间位芳酞胺纤维、3重量份碳化硅晶须、5.5重量份硅酮、5重量份十二烷基苯磺酸钠、20重量份聚乙烯蜡、5重量份超细碳酸钙、2重量份抗氧剂1010、4重量份偶联剂γ-氨丙基三乙氧基硅烷和5重量份增容剂硬脂酸锌。
上述纤维增强高填充聚苯硫醚复合材料的制备方法,步骤如下:
步骤一、按组成及配比,将聚苯硫醚、聚氨酯、二月桂酸二正丁基锡、铝酸钙、硅灰石、玄武岩纤维、间位芳酞胺纤维、碳化硅晶须、硅酮、十二烷基苯磺酸钠、聚乙烯蜡、超细碳酸钙、抗氧剂、偶联剂和增容剂加入高速配料搅拌机中,混合均匀,得到预混料;
步骤二、将预混料加入挤出机中,挤出造粒,得到纤维增强高填充聚苯硫醚复合材料。
实施例3
纤维增强高填充复合材料,由100重量份聚苯硫醚、12重量份聚氨酯、3重量份二月桂酸二正丁基锡、3重量份铝酸钙、3重量份硅灰石、3重量份玄武岩纤维、7重量份间位芳酞胺纤维、2重量份碳化硅晶须、5重量份硅酮、4重量份十二烷基苯磺酸钠、18重量份聚乙烯蜡、4重量份超细碳酸钙、1重量份抗氧剂1010、3重量份偶联剂γ-氨丙基三乙氧基硅烷和4重量份增容剂硬脂酸锌。
上述纤维增强高填充聚苯硫醚复合材料的制备方法,步骤如下:
步骤一、按组成及配比,将聚苯硫醚、聚氨酯、二月桂酸二正丁基锡、铝酸钙、硅灰石、玄武岩纤维、间位芳酞胺纤维、碳化硅晶须、硅酮、十二烷基苯磺酸钠、聚乙烯蜡、超细碳酸钙、抗氧剂、偶联剂和增容剂加入高速配料搅拌机中,混合均匀,得到预混料;
步骤二、将预混料加入挤出机中,挤出造粒,得到纤维增强高填充聚苯硫醚复合材料。
对实施例1-3的聚苯硫醚复合材料进行性能表征,采用GB/T16419-1996检测弯曲性能,GB/T16421-1996检测拉伸性能,采用ASTM D256检测抗冲击强度,依据ASTM D648检测热变形温度,检测结果如表1所示。
表1实施例1-3的聚苯硫醚复合材料进行性能表征
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的,本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下,在其它实施例中实现。因此,本发明将不会被限制于本文所示的这些实施例,而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。
Claims (8)
1.纤维增强高填充聚苯硫醚复合材料,其特征在于,组成及重量份为:
2.根据权利要求1所述的纤维增强高填充聚苯硫醚复合材料,其特征在于,所述聚苯硫醚的重均分子量为40000-600000。
3.根据权利要求1所述的纤维增强高填充聚苯硫醚复合材料,其特征在于,所述抗氧剂为抗氧剂1010、抗氧剂1098、抗氧剂168中一种或多种。
4.根据权利要求1所述的纤维增强高填充聚苯硫醚复合材料,其特征在于,所述的偶联剂为硅烷偶联剂、钛酸酯偶联剂、铝酸酯偶联剂中的一种或多种的混合物。
5.根据权利要求4所述的纤维增强高填充聚苯硫醚复合材料,其特征在于,所述偶联剂为γ-氨丙基三乙氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅烷、N-(β-氨乙基)-γ-氨丙基三乙氧基硅烷、异丙基三硬酯酸钛酸酯、双(二辛氧基焦磷酸酯基)乙撑钛酸酯中的一种或几种的混合物。
6.根据权利要求1所述的纤维增强高填充聚苯硫醚复合材料,其特征在于,所述增容剂为马来酸酐接枝线性低密度聚乙烯、马来酸酐接枝苯二烯-乙烯-丁烯-苯乙烯嵌段共聚物、脂肪酸、硬脂酸钙、硬脂酸锌、硅酮粉中的一种或几种。
7.权利要求1-6任何一项所述的纤维增强高填充聚苯硫醚复合材料的制备方法,其特征在于,步骤如下:
步骤一、按组成及配比,将聚苯硫醚、聚氨酯、二月桂酸二正丁基锡、铝酸钙、硅灰石、玄武岩纤维、间位芳酞胺纤维、碳化硅晶须、硅酮、十二烷基苯磺酸钠、聚乙烯蜡、超细碳酸钙、抗氧剂、偶联剂和增容剂加入高速配料搅拌机中,混合均匀,得到预混料;
步骤二、将预混料加入挤出机中,挤出造粒,得到纤维增强高填充聚苯硫醚复合材料。
8.根据权利要求7所述的纤维增强高填充聚苯硫醚复合材料的制备方法,其特征在于,挤出加工温度为290-330℃。
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胡隆伟等: "《紧固件材料手册》", 31 December 2014, 中国宇航出版社 * |
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