CN111471239A - 一种汽车脚踏板专用金属质感长纤增强聚丙烯料及制备方法 - Google Patents
一种汽车脚踏板专用金属质感长纤增强聚丙烯料及制备方法 Download PDFInfo
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Abstract
本发明涉及一种汽车脚踏板专用金属质感长纤增强聚丙烯料,按质量份数由以下组分组成:聚丙烯50~70份;相容剂5~15份;金属粉1~2份;抗氧剂0.2~1份;抗UV剂0.3~1份;润滑剂0.5~1份;玻璃纤维20~30份;防玻纤外露剂0.5~1份。其制备方法是:按上述比例配比混合,并高速搅拌3~5分钟,得到混合物,再将该混合物加入双螺杆挤出机内,经熔融挤出,再进入玻璃纤维浸润模具,同时,玻璃纤维通过浸润模具加入,充分浸润后水冷,风冷,切粒而得。本发明所制得的材料具有金属质感效果,耐候性能好,高冲击性、高刚性等优良综合性能。
Description
[技术领域]
本发明涉及一种汽车脚踏板专用金属质感长纤增强聚丙烯料及其制备方法,属于高分子材料中工程塑料改性技术领域。
[背景技术]
近年来随着汽车工业的飞速发展,轻量化、品质化、节能环保、功能化等已成为当前汽车工业的主要目标。聚丙烯是一种综合性能优良的通用热塑性塑料,具有价格低廉,质量轻、耐溶性、易回收、无毒等特点,是最重要的汽车轻质材料,它可减轻汽车零部件约40%的质量,已广泛应用在汽车装饰件上。而功能化的聚丙烯材料在汽车上的运用也越来越多,如高耐热性、耐候性、高刚性和金属质感性也逐渐成为主流,现行汽车脚踏板材料使用的是传统LFT增强PP材料,外观视觉效果较差,为了满足市场差异化需求,往往在制作过程中,组装添加金属镶片或二次加工喷漆才能满足市场需求。基于市场反馈的情况,开发一种汽车脚踏板专用金属质感长纤增强聚丙烯料,可有效减少上游客户二次加工及组装工序,降低制作成本,减少喷漆过程中带来的环境污染。
[发明内容]
本发明的目的在于提供一种汽车脚踏板专用金属质感长纤增强聚丙烯料及其制备方法,其目的在于:在保持材料的刚性等力学性能下,赋予材料金属质感效果。
本发明的技术方案如下:
一种汽车脚踏板专用金属质感长纤增强聚丙烯料,按质量份数由以下组分组成:
其中,所述聚丙烯在230℃*2.16kg条件下,熔体流动速率为100~150g/10min,其拉伸强度≥30Mpa。
其中,所述相容剂为接枝马来酸酐聚丙烯,其接枝率为1~1.2%,熔指范围为110~140g/10min。
其中,所述金属粉为片状铝粉和银粉中的任意一种或其混合物,其粒径均为30~95um。
其中,所述抗氧剂为季戊四醇双亚磷酸酯二(2,4-二特丁基苯基)酯,亚磷酸酯三(2,4-二特丁基苯基)酯,四[β-(3,5-二叔丁基4-羟基苯基)丙酸]季戊四醇酯中的任意一种或两种以上的混合物。
其中,所述抗UV剂为LA-402AF、LA-36、V9900中的一种或两种以上复配使用。
其中,所述润滑剂为芥酸酰胺、E蜡、蒙旦蜡、聚乙烯蜡中的一种或两种以上的混合物。
其中,所述玻璃纤维为单丝直径17μm的LFT用无碱玻璃纤维直接无捻粗纱。
其中,所述防玻纤外露剂为硅酮粉、氧化锌母粒和硅烷偶联剂中的一种或几种。
本发明还公布了一种汽车脚踏板专用金属质感长纤增强聚丙烯料的制备方法,包括:
步骤一、按前面所述的质量份数的配方比例依次称取聚丙烯、相容剂、金属粉、抗氧剂、抗UV剂、润滑剂、玻璃纤维和防玻纤外露剂,将称取的各组分在高速搅拌机中高速搅拌3~5分钟,得到预混物;
步骤二、将步骤一得到的预混物通过双螺杆挤出机熔融挤出的聚合物,直接导入浸润装置,同时将玻璃纤维导入浸润装置,玻璃纤维在浸润装置中与聚合物浸润包覆后,从浸润装置的圆孔口径中导出,经过水冷却、风干、切粒,得聚丙烯复合材料;
其中,双螺杆挤出机的温度设置为:①区:175-180℃;②区:190-195℃;③区:190-195℃;④区:190-195℃;⑤区:190-200℃;⑥区:200-210℃;⑦区:210-220℃;⑧区:200-210℃;⑨区:200-210℃;螺杆转速控制在250~350r/min;浸润装置的加工温度为200-285℃,切粒的粒子长度为10~15mm。
本发明的有益效果是:1、本发明采用的金属粉,在保持材料的刚性等力学性能下,赋予材料金属质感效果,减少上游客户二次加工及组装工序,降低制作成本,减少喷漆过程中带来的环境污染;2、本发明采用的高效耐候剂,使材料具有强耐候性;3、通过对高熔指相容剂的加入,可以提高金属粉、玻璃纤维和树脂的相容性,以提高材料综合性能。
[具体实施方式]
为了更好地理解本发明,下面结合实施例进一步阐明本发明的内容,但本发明的内容不仅仅局限于下面的实施例。
本发明公布了一种汽车脚踏板专用金属质感长纤增强聚丙烯料,按质量份数由以下组分组成:
其中,所述聚丙烯在230℃*2.16kg条件下,熔体流动速率为100~150g/10min,其拉伸强度≥30Mpa。
其中,所述相容剂为接枝马来酸酐聚丙烯,其接枝率为1~1.2%,熔指范围为110~140g/10min。
其中,所述金属粉为片状铝粉和银粉中的任意一种或其混合物,其粒径均为30~95um。
其中,所述抗氧剂为季戊四醇双亚磷酸酯二(2,4-二特丁基苯基)酯,亚磷酸酯三(2,4-二特丁基苯基)酯,四[β-(3,5-二叔丁基4-羟基苯基)丙酸]季戊四醇酯中的任意一种或两种以上的混合物。
其中,所述抗UV剂为LA-402AF、LA-36、V9900中的一种或两种以上复配使用。
其中,所述润滑剂为芥酸酰胺、E蜡、蒙旦蜡、聚乙烯蜡中的一种或两种以上的混合物。
其中,所述玻璃纤维为单丝直径17μm的LFT用无碱玻璃纤维直接无捻粗纱。
其中,所述防玻纤外露剂为硅酮粉、氧化锌母粒和硅烷偶联剂中的一种或几种。
本发明还公布了一种汽车脚踏板专用金属质感长纤增强聚丙烯料的制备方法,包括:
步骤一、按前面所述的质量份数的配方比例依次称取聚丙烯、相容剂、金属粉、抗氧剂、抗UV剂、润滑剂、玻璃纤维和防玻纤外露剂,将称取的各组分在高速搅拌机中高速搅拌3~5分钟,得到预混物;
步骤二、将步骤一得到的预混物通过双螺杆挤出机熔融挤出的聚合物,直接导入浸润装置,同时将玻璃纤维导入浸润装置,玻璃纤维在浸润装置中与聚合物浸润包覆后,从浸润装置的圆孔口径中导出,经过水冷却、风干、切粒,得聚丙烯复合材料;
其中,双螺杆挤出机的温度设置为:①区:175-180℃;②区:190-195℃;③区:190-195℃;④区:190-195℃;⑤区:190-200℃;⑥区:200-210℃;⑦区:210-220℃;⑧区:200-210℃;⑨区:200-210℃;螺杆转速控制在250~350r/min;浸润装置的加工温度为200-285℃,切粒的粒子长度为10~15mm。
实施例1
汽车脚踏板专用金属质感长纤增强聚丙烯料的组分及各质量份数如下:
制作步骤为:
步骤一、按上述配方比例依次称取聚丙烯,相容剂,金属粉,抗氧剂,抗UV剂,润滑剂,玻璃纤维和防玻纤外露剂,将称取的各组分在高速搅拌机中高速搅拌3~5分钟,得到预混物;
步骤二、将步骤一得到的预混物通过双螺杆挤出机熔融挤出的聚合物,直接导入浸润装置,同时将玻璃纤维导入浸润装置,玻璃纤维在浸润装置中与聚合物浸润包覆后,从浸润装置的圆孔口径中导出,经过水冷却、风干、切粒,得聚丙烯复合材料;
其中,双螺杆挤出机的温度设置为:①区:175-180℃;②区:190-195℃;③区:190-195℃;④区:190-195℃;⑤区:190-200℃;⑥区:200-210℃;⑦区:210-220℃;⑧区:200-210℃;⑨区:200-210℃;螺杆转速控制在250~350r/min;浸润装置的加工温度为200-285℃,切粒的粒子长度为10~15mm。
制得的聚丙烯复合材料性能见表1的实施例编号1。
实施例2
汽车脚踏板专用金属质感长纤增强聚丙烯料的组分及各质量份数如下:
制作步骤为:
步骤一、按上述配方比例依次称取聚丙烯,相容剂,金属粉,抗氧剂,抗UV剂,润滑剂,玻璃纤维和防玻纤外露剂,将称取的各组分在高速搅拌机中高速搅拌3~5分钟,得到预混物;
步骤二、将步骤一得到的预混物通过双螺杆挤出机熔融挤出的聚合物,直接导入浸润装置,同时将玻璃纤维导入浸润装置,玻璃纤维在浸润装置中与聚合物浸润包覆后,从浸润装置的圆孔口径中导出,经过水冷却、风干、切粒,得聚丙烯复合材料;
其中,双螺杆挤出机的温度设置为:①区:175-180℃;②区:190-195℃;③区:190-195℃;④区:190-195℃;⑤区:190-200℃;⑥区:200-210℃;⑦区:210-220℃;⑧区:200-210℃;⑨区:200-210℃;螺杆转速控制在250~350r/min;浸润装置的加工温度为200-285℃,切粒的粒子长度为10~15mm。
制得的聚丙烯复合材料性能见表1的实施例编号2。
实施例3
汽车脚踏板专用金属质感长纤增强聚丙烯料的组分及各质量份数如下:
制作步骤为:
步骤一、按上述配方比例依次称取聚丙烯,相容剂,金属粉,抗氧剂,抗UV剂,润滑剂,玻璃纤维和防玻纤外露剂,将称取的各组分在高速搅拌机中高速搅拌3~5分钟,得到预混物;
步骤二、将步骤一得到的预混物通过双螺杆挤出机熔融挤出的聚合物,直接导入浸润装置,同时将玻璃纤维导入浸润装置,玻璃纤维在浸润装置中与聚合物浸润包覆后,从浸润装置的圆孔口径中导出,经过水冷却、风干、切粒,得聚丙烯复合材料;
其中,双螺杆挤出机的温度设置为:①区:175-180℃;②区:190-195℃;③区:190-195℃;④区:190-195℃;⑤区:190-200℃;⑥区:200-210℃;⑦区:210-220℃;⑧区:200-210℃;⑨区:200-210℃;螺杆转速控制在250~350r/min;浸润装置的加工温度为200-285℃,切粒的粒子长度为10~15mm。
制得的聚丙烯复合材料性能见表1的实施例编号3。
表1汽车脚踏板专用金属质感长纤增强聚丙烯性能
通过表1可以看出,本发明具备如下优点:
1、本发明采用的金属粉,在保持材料的刚性等力学性能下,赋予材料金属质感效果,减少上游客户二次加工及组装工序,降低制作成本,减少喷漆过程中带来的环境污染;
2、本发明采用的高效耐候剂,使材料具有强耐候性;
3、通过对高熔指相容剂的加入,可以提高金属粉、玻璃纤维和树脂的相容性,以提高材料综合性能。
以上所述的本发明实施方式,并不构成对本发明保护范围的限定。任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的权利要求保护范围之内。
Claims (10)
2.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述聚丙烯在230℃*2.16kg条件下,熔体流动速率为100~150g/10min,其拉伸强度≥30Mpa。
3.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述相容剂为接枝马来酸酐聚丙烯,其接枝率为1~1.2%,熔指范围为110~140g/10min。
4.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述金属粉为片状铝粉和银粉中的任意一种或其混合物,其粒径均为30~95um。
5.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述抗氧剂为季戊四醇双亚磷酸酯二(2,4-二特丁基苯基)酯,亚磷酸酯三(2,4-二特丁基苯基)酯,四[β-(3,5-二叔丁基4-羟基苯基)丙酸]季戊四醇酯中的任意一种或两种以上的混合物。
6.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述抗UV剂为LA-402AF、LA-36、V9900中的一种或两种以上复配使用。
7.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述润滑剂为芥酸酰胺、E蜡、蒙旦蜡、聚乙烯蜡中的一种或两种以上的混合物。
8.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述玻璃纤维为单丝直径17μm的LFT用无碱玻璃纤维直接无捻粗纱。
9.根据权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料,其特征在于:所述防玻纤外露剂为硅酮粉、氧化锌母粒和硅烷偶联剂中的一种或几种。
10.一种如权利要求1所述的汽车脚踏板专用金属质感长纤增强聚丙烯料的制备方法,其特征在于,包括如下步骤:
步骤一、按权利要求1所述的配方比例依次称取聚丙烯,相容剂,金属粉,抗氧剂,抗UV剂,润滑剂,玻璃纤维和防玻纤外露剂,将称取的各组分在高速搅拌机中高速搅拌3~5分钟,得到预混物;
步骤二、将步骤一得到的预混物通过双螺杆挤出机熔融挤出的聚合物,直接导入浸润装置,同时将玻璃纤维导入浸润装置,玻璃纤维在浸润装置中与聚合物浸润包覆后,从浸润装置的圆孔口径中导出,经过水冷却、风干、切粒,得聚丙烯复合材料;
其中,双螺杆挤出机的温度设置为:①区:175-180℃;②区:190-195℃;③区:190-195℃;④区:190-195℃;⑤区:190-200℃;⑥区:200-210℃;⑦区:210-220℃;⑧区:200-210℃;⑨区:200-210℃;螺杆转速控制在250~350r/min;浸润装置的加工温度为200-285℃,切粒的粒子长度为10~15mm。
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