CN108976602A - 一种适用于pp的仿大理石纹母粒 - Google Patents
一种适用于pp的仿大理石纹母粒 Download PDFInfo
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Abstract
本发明提供了一种适用于PP的仿大理石纹母粒,包括母粒,所述母粒包括以下重量份的组分:60‑80份PA6、5‑15份PP、3‑8份填充剂、2‑8份增韧剂、1‑5份颜料、1‑5份复合高分子蜡、0.3‑1份阻燃剂,所述复合高分子蜡由EVA蜡与乙烯基双硬脂酰胺按照1:1的重量比混合构成。本发明的仿大理石纹母粒,适用于PP塑料,以PA6作为载体树脂,PP塑料的熔点约为165℃,PA6的熔点约为230℃,利用PA6与PP熔点的不同,只需将本发明的仿大理石纹母粒与投入到螺杆挤出机与PP塑料共混,共混时PA6与PP的流动速率差别较大,母粒中的颜料随PA6的流动而在PP塑料中不规则分布,出料时即可得到具有仿大理石纹的PP塑料,纹路清晰、表面光泽好、不褪色、具有亮丽的外观效果。
Description
技术领域
本发明涉及色母粒领域,具体涉及一种适用于PP的仿大理石纹母粒。
背景技术
为了赋予塑料绚丽、彩色、多样化的外观,通常采用在塑料基材上进行喷漆、电镀、印刷油墨的方式来达到亮丽、美观的外观效果。但是利用喷漆、电镀、印刷油墨的方式存在流程复杂、成本高、污染环境、危害工人身体健康、难以回收利用等缺点,且制品表面涂层容易掉色、影响了制品的外观,不提倡使用。
为了改善以上问题,部分企业研发出了仿大理石纹、仿木纹塑料制品,仿大理石纹、仿木纹塑料的制备的机理是:制作特殊的色母粒,色母粒中的载体树脂与塑料原料具有不同的熔点,当色母粒与塑料原料投入到螺杆挤出机中共混挤出时,由于载体树脂与塑料原料的熔点不同,两种物质在挤出机螺筒中形成不同的流动速率,使得颜料随着载体树脂的流动而不规则分布,使塑料型材产生大理石纹、木纹效果。
专利号为CN201711364492的《一种适用于PVC的仿木纹母粒及其制备方法》,公开了一种适用于PVC的仿木纹母粒及其制备方法,该发明提供的母粒适用于制备仿木纹效果的PVC,利用PET与PVC的熔点不同的原理,母粒与PVC在挤出机螺筒中形成不同的流动速率,使得颜料随着PET的流动而产生木纹效果。由于PET的熔点约为260℃,PVC的熔点约为230℃,两者的熔点相差不大,两种物质在挤出机螺筒中流动速率差别不大,适合制作条状、具有层次感的仿木纹的纹路,而无法制作纹路分布不规律的仿大理石纹塑料。
聚丙烯(PP)是一种半结晶的热塑性塑料。由于其具有较高的耐冲击性,机械性质强韧,抗多种有机溶剂和酸碱腐蚀等优点,被广泛应用。仿大理石纹相对于仿木纹,仿大理石纹具有更清新、干净的外观效果,若在PP上增加仿大理石纹效果,对于PP来说,将具有更美观的外观效果。
发明内容
针对以上问题,本发明提供一种适用于PP的仿大理石纹母粒。
为实现上述目的,本发明通过以下技术方案来解决:
一种适用于PP的仿大理石纹母粒,包括母粒,所述母粒包括以下重量份的组分:60-80份PA6、5-15份PP、3-8份填充剂、2-8份增韧剂、1-5份颜料、1-5份复合高分子蜡、0.3-1份阻燃剂,所述复合高分子蜡由EVA蜡与乙烯基双硬脂酰胺按照1:1的重量比混合构成。
具体的,所述填充剂为高岭土、膨润土、硅藻土中的一种或几种的组合物。
具体的,所述增韧剂为POE。
具体的,所述颜料为酞菁红、酞菁蓝、酞菁绿、耐晒大红、大分子红、大分子黄、永固黄、永固紫、偶氮红中的一种或几种的组合物。
具体的,所述复合高分子蜡为超细微粉蜡,粒径为1-5μm。
具体的,所述阻燃剂为氢氧化镁、氢氧化铝、三氧化二锑中的一种或几种的组合物。
具体的,所述母粒中还添加有0.3-1份热稳定剂、2-5份润滑剂。
具体的,所述热稳定剂为硬脂酸钡、硬脂酸钙、硫醇甲基锡中的一种或几种的组合物。
具体的,所述润滑剂为硬脂酸丁脂、低分子量聚乙烯中的一种或两种的组合物。
本发明的有益效果是:
第一、本发明的仿大理石纹母粒,适用于PP塑料,以PA6作为载体树脂,PP塑料的熔点约为165℃,PA6的熔点约为230℃,利用PA6与PP熔点的不同,只需将本发明的仿大理石纹母粒与投入到螺杆挤出机与PP塑料共混,共混时PA6与PP的流动速率差别较大,母粒中的颜料随PA6的流动而在PP塑料中不规则分布,出料时即可得到具有仿大理石纹的PP塑料,纹路清晰、表面光泽好、不褪色、具有亮丽的外观效果;
第二、本发明的仿大理石纹母粒,加入了由EVA蜡与乙烯基双硬脂酰胺按照1:1的比例混合构成的复合高分子蜡,能够提高PP塑料的分散性,制成的具有仿大理石纹的PP塑料不发生分层现象,相容性好;
第三、还加入了增韧剂作为PP塑料的补强助剂,能够提高PP塑料的柔韧性。
具体实施方式
为了能进一步了解本发明的特征、技术手段以及所达到的具体目的、功能,下面结合具体实施方式对本发明作进一步的详细描述。
实施例1
一种适用于PP的仿大理石纹母粒,包括母粒,母粒包括以下重量份的组分:60份PA6、15份PP、5份高岭土、6份POE、1份大分子红、2份大分子黄、1份EVA蜡、1份乙烯基双硬脂酰胺、0.3份阻燃剂、0.3硬脂酸钡、2硬脂酸丁脂。
优选的,EVA蜡和乙烯基双硬脂酰胺均为超细微粉蜡,粒径为1-5μm。
优选的,阻燃剂为氢氧化镁、氢氧化铝按照1:1的重量比组成的组合物,以氢氧化镁、氢氧化铝复配的形式加入母粒中,氢氧化镁为镁系阻燃剂,氢氧化铝为铝系阻燃剂,本配方能同时兼容镁系阻燃剂和铝系阻燃剂,其阻燃效果相比传统的母粒,阻燃效果显著。
母粒的制备:
(1)将上述所有原料投入高速搅拌机中,在120℃下搅拌10分钟,冷却后继续搅拌10分钟,得到混合原料;
(2)将混合原料投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出条状料;
(3)将挤出的条状料再经水冷、风干、切粒后制得母粒。
仿大理石纹PP塑料的制备:
a、将母粒与PP原料共同投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出头处连接有成型模具,将挤出料送入模具中成型;
b、模具冷却,脱模后得到仿大理石纹PP塑料。
实施例2
一种适用于PP的仿大理石纹母粒,包括母粒,母粒包括以下重量份的组分:70份PA6、10份PP、5份填充剂、6份POE、1份酞菁红、2份酞菁蓝、1份EVA蜡、1份乙烯基双硬脂酰胺、0.3份氢氧化镁、0.3硬脂酸钡、2硬脂酸丁脂。
优选的,EVA蜡和乙烯基双硬脂酰胺均为超细微粉蜡,粒径为1-5μm。
优选的,填充剂为高岭土、膨润土按照1:2的重量比组成的组合物,以高岭土、膨润土复配的形式加入母粒中,能够提升母粒的分散性,同时提高母粒的黏结性、吸湿性。
母粒的制备:
(1)将上述所有原料投入高速搅拌机中,在120℃下搅拌10分钟,冷却后继续搅拌10分钟,得到混合原料;
(2)将混合原料投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出条状料;
(3)将挤出的条状料再经水冷、风干、切粒后制得母粒。
仿大理石纹PP塑料的制备:
a、将母粒与PP原料共同投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出头处连接有成型模具,将挤出料送入模具中成型;
b、模具冷却,脱模后得到仿大理石纹PP塑料。
实施例3
一种适用于PP的仿大理石纹母粒,包括母粒,母粒包括以下重量份的组分:80份PA6、5份PP、5份高岭土、6份POE、3份永固紫、1份EVA蜡、1份乙烯基双硬脂酰胺、0.3份氢氧化镁、0.3硬脂酸钡、2硬脂酸丁脂。
优选的,EVA蜡和乙烯基双硬脂酰胺均为超细微粉蜡,粒径为1-5μm。
母粒的制备:
(1)将上述所有原料投入高速搅拌机中,在120℃下搅拌10分钟,冷却后继续搅拌10分钟,得到混合原料;
(2)将混合原料投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出条状料;
(1)将挤出的条状料再经水冷、风干、切粒后制得母粒。
仿大理石纹PP塑料的制备:
a、将母粒与PP原料共同投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出头处连接有成型模具,将挤出料送入模具中成型;
b、模具冷却,脱模后得到仿大理石纹PP塑料。
实施例4
一种适用于PP的仿大理石纹母粒,包括母粒,母粒包括以下重量份的组分:60份PA6、15份PP、5份高岭土、4份POE、1份大分子红、1份大分子黄、1份酞菁绿、1份EVA蜡、1份乙烯基双硬脂酰胺、0.3份氢氧化镁、0.3硬脂酸钡、2硬脂酸丁脂。
优选的,EVA蜡和乙烯基双硬脂酰胺均为超细微粉蜡,粒径为1-5μm。
母粒的制备:
(1)将上述所有原料投入高速搅拌机中,在120℃下搅拌10分钟,冷却后继续搅拌10分钟,得到混合原料;
(2)将混合原料投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出条状料;
(3)将挤出的条状料再经水冷、风干、切粒后制得母粒。
仿大理石纹PP塑料的制备:
a、将母粒与PP原料共同投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出头处连接有成型模具,将挤出料送入模具中成型;
b、模具冷却,脱模后得到仿大理石纹PP塑料。
实施例5
一种适用于PP的仿大理石纹母粒,包括母粒,母粒包括以下重量份的组分:60份PA6、15份PP、5份高岭土、2份POE、1份酞菁绿、2份永固紫、1份EVA蜡、1份乙烯基双硬脂酰胺、0.3份氢氧化镁、0.3硬脂酸钡、2硬脂酸丁脂。
优选的,EVA蜡和乙烯基双硬脂酰胺均为超细微粉蜡,粒径为1-5μm。
仿大理石纹母粒的制备:
(1)将上述所有原料投入高速搅拌机中,在120℃下搅拌10分钟,冷却后继续搅拌10分钟,得到混合原料;
(2)将混合原料投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出条状料;
(3)将挤出的条状料再经水冷、风干、切粒后制得母粒。
仿大理石纹PP塑料的制备:
a、将母粒与PP原料共同投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出头处连接有成型模具,将挤出料送入模具中成型;
b、模具冷却,脱模后得到仿大理石纹PP塑料。
对比例1
普通市售色母粒,其组成包括86.6份PP、1份大分子红、2份大分子黄。
普通PP塑料的制备:
c、将普通市售色母粒与PP原料共同投入双螺杆挤出机中熔融,双螺杆挤出机的温度从进料口到挤出头逐渐从180℃上升到240℃,挤出头处连接有成型模具,将挤出料送入模具中成型;
d、模具冷却,脱模后得到普通PP塑料。
性能检测:
将上述实施例1-5得到的仿大理石纹PP塑料、对比例1得到的普通PP塑料分别进行性能测试,得到的结果记录如下表1。
表1测试结果
由上述表1的数据看出,实施例1-5使用本发明的母粒与PP原料混熔挤出,能够得到外观良好的仿大理石纹PP塑料,而对比例1使用普通市售色母粒与PP原料混熔挤出,得到的普通PP塑料并无仿大理石纹效果;
对比实施例1-3,提高PA6的用量,弯曲强度与断裂伸长率均有所提高,说明PA6加入PP原料中,也可作为增强塑料使用,提高了PP塑料的韧性,另外,对比实施例1、实施例4、实施例5,提高POE的用量,弯曲强度与断裂伸长率均有所提高,说明POE也能提高了PP塑料的韧性。
以上所述实施例仅表达了本发明的5种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (9)
1.一种适用于PP的仿大理石纹母粒,包括母粒,其特征在于,所述母粒包括以下重量份的组分:60-80份PA6、5-15份PP、3-8份填充剂、2-8份增韧剂、1-5份颜料、1-5份复合高分子蜡、0.3-1份阻燃剂,所述复合高分子蜡由EVA蜡与乙烯基双硬脂酰胺按照1:1的重量比混合构成。
2.根据权利要求1所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述填充剂为高岭土、膨润土、硅藻土中的一种或几种的组合物。
3.根据权利要求1所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述增韧剂为POE。
4.根据权利要求1所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述颜料为酞菁红、酞菁蓝、酞菁绿、耐晒大红、大分子红、大分子黄、永固黄、永固紫、偶氮红中的一种或几种的组合物。
5.根据权利要求1所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述复合高分子蜡为超细微粉蜡,粒径为1-5μm。
6.根据权利要求1所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述阻燃剂为氢氧化镁、氢氧化铝、三氧化二锑中的一种或几种的组合物。
7.根据权利要求1所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述母粒中还添加有0.3-1份热稳定剂、2-5份润滑剂。
8.根据权利要求7所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述热稳定剂为硬脂酸钡、硬脂酸钙、硫醇甲基锡中的一种或几种的组合物。
9.根据权利要求7所述的一种适用于PP的仿大理石纹母粒,其特征在于,所述润滑剂为硬脂酸丁脂、低分子量聚乙烯中的一种或两种的组合物。
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Application publication date: 20181211 |