CN109651705A - 一种新型耐刮擦母粒及其制备方法 - Google Patents
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Abstract
本发明涉及一种新型耐刮擦母粒及其制备方法,按重量份由以下组分组成:PP为70份‑90份;LDPE为5份‑10份;硅酮粉为12份‑16份;不锈钢纤维为16份‑20份;偶联剂为0.1份‑0.3份;润滑剂为0.1份‑0.5份。本发明提供的耐刮擦母粒,不但提升了聚烯烃复合材料的耐刮擦性能,而且提高了聚烯烃复合材料的物理性能。
Description
技术领域
本发明属于高分子材料技术领域,特别是指一种新型耐刮擦母粒及其制备方法。
背景技术
耐刮擦性能是指基材受到外力作用时,对外力的抵抗能力和形变吸收能力,当这种抵抗能力小,且这种形变吸收不能恢复到原来状态时,基材表面就被破坏,产生划痕。耐刮擦性能是仪表板、汽车内外装饰件、耐用品和塑料外壳等的重要性能之一。
本发明创新制得一种新型耐刮擦母粒及其制备方法,改善现在聚烯烃的耐刮擦性能以及物理性能,这种耐刮擦母粒至今尚未见于报道,这对于扩展耐候母粒的应用具有非常重要的现实意义。
发明内容
本发明的目的是提供一种新型耐刮擦母粒及其制备方法,以解决现有技术用它制得的聚烯烃复合材料耐刮擦性能以及物理性能均不高的问题。
本发明是通过以下技术方案实现的:
一种新型耐刮擦母粒,按重量份由以下组分组成:
所述不锈钢纤维的单丝直径为6-10μm。
所述偶联剂为钛酸酯偶联剂AC-201。
所述润滑剂为乙撑双硬脂酸酰胺。
上述任一项所述的耐刮擦母粒的制备方法,包括以下步骤:
(1)称取70份-90份的PP,5份-10份的LDPE、12份-16份的硅酮粉、16份-20份的不锈钢纤维、0.1份-0.3份的偶联剂及0.1份-0.5份的润滑剂;
(2)将上述物料放入高速搅拌机内,在30-40℃运行2-4h;
(3)将步骤(2)所得的混合料加入到挤出机中,挤出造粒,即得到耐刮擦母粒。
步骤(2)中的高速搅拌机的转速为200-280r/min。
步骤(3)中的挤出机包括顺次排布的六个温度区,一区温度160~180℃,二区温度200~230℃,三区温度200~230℃,四区温度200~230℃,五区温度200~230℃,六区温度200~230℃,机头温度200~230℃;螺杆转速180~260r/min。
本发明的有益效果是:
本发明提供的耐刮擦母粒,不但提升了聚烯烃复合材料的耐刮擦性能,而且提高了聚烯烃复合材料的物理性能。
具体实施方式
以下通过实施例来详细说明本发明的技术方案,以下的实施例仅是示例性的,仅能用来解释和说明本发明的技术方案,而不能解释为是对本发明技术方案的限制。
实施例1
(1)称取70份的PP,5份的LDPE、12份硅酮粉、16份不锈钢纤维、0.1份AC-201及0.1份EBS。
(2)将物料放入高速搅拌机内,在30℃运行2h。
(3)将步骤(2)所得的混合料加入到挤出机中,挤出造粒,即得到耐刮擦母粒P1。
其中步骤(2)中的高速搅拌机的转速为200r/min,步骤(3)中的挤出机包括顺次排布的六个温度区,一区温度160℃,二区温度200℃,三区温度200℃,四区温度200℃,五区温度200℃,六区温度200℃,机头温度200℃;螺杆转速180r/min。
实施例2
(1)称取90份的PP,10份的LDPE、16份硅酮粉、20份不锈钢纤维、0.3份AC-201及0.5份EBS。
(2)将物料放入高速搅拌机内,在40℃运行4h。
(3)将步骤(2)所得的混合料加入到挤出机中,挤出造粒,即得到耐刮擦母粒P2。
其中步骤(2)中的高速搅拌机的转速为280r/min,步骤(3)中的挤出机包括顺次排布的六个温度区,一区温度180℃,二区温度230℃,三区温度230℃,四区温度230℃,五区温度230℃,六区温度230℃,机头温度230℃;螺杆转速260r/min。
实施例3
(1)称取80份的PP,8份的LDPE、14份硅酮粉、18份不锈钢纤维、0.2份AC-201及0.3份EBS。
(2)将物料放入高速搅拌机内,在35℃运行3h。
(3)将步骤(2)所得的混合料加入到挤出机中,挤出造粒,即得到耐刮擦母粒P3。
优选地,步骤(2)中的高速搅拌机的转速为240r/min。
步骤(3)中的挤出机包括顺次排布的六个温度区,一区温度170℃,二区温度215℃,三区温度215℃,四区温度215℃,五区温度215℃,六区温度215℃,机头温度215℃;螺杆转速220r/min。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变形,本发明的范围由所附权利要求极其等同限定。
Claims (7)
1.一种新型耐刮擦母粒,其特征在于,按重量份由以下组分组成:
2.根据权利要求1所述的新型耐刮擦母粒,其特征在于,所述不锈钢纤维的单丝直径为6-10μm。
3.根据权利要求1所述的新型耐刮擦母粒,其特征在于,所述偶联剂为钛酸酯偶联剂AC-201。
4.根据权利要求1所述的新型耐刮擦母粒,其特征在于,所述润滑剂为乙撑双硬脂酸酰胺。
5.上述权利要求1至4中任一项所述的耐刮擦母粒的制备方法,其特征在于,包括以下步骤:
(1)称取70份-90份的PP,5份-10份LDPE、12份-16份的硅酮粉、16份-20份的不锈钢纤维、0.1份-0.3份的偶联剂及0.1份-0.5份的润滑剂;
(2)将上述物料放入高速搅拌机内,在30-40℃运行2-4h;
(3)将步骤(2)所得的混合料加入到挤出机中,挤出造粒,即得到耐刮擦母粒。
6.根据权利要求5所述的耐刮擦母粒的制备方法,其特征在于,步骤(2)中的高速搅拌机的转速为200-280r/min。
7.根据权利要求5所述的耐刮擦母粒的制备方法,其特征在于,步骤(3)中的挤出机包括顺次排布的六个温度区,一区温度160~180℃,二区温度200~230℃,三区温度200~230℃,四区温度200~230℃,五区温度200~230℃,六区温度200~230℃,机头温度200~230℃;螺杆转速180~260r/min。
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