CN103483685A - 超低收缩率pp/abs合金材料及其制备方法 - Google Patents

超低收缩率pp/abs合金材料及其制备方法 Download PDF

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CN103483685A
CN103483685A CN201310432874.XA CN201310432874A CN103483685A CN 103483685 A CN103483685 A CN 103483685A CN 201310432874 A CN201310432874 A CN 201310432874A CN 103483685 A CN103483685 A CN 103483685A
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abs
alloy material
abs alloy
resin
shrinking percentage
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徐东
赵咏
徐永
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Polymer Science Anhui New Material Co Ltd
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Abstract

本发明公开了一种超低收缩率PP/ABS合金材料及其制备方法，该种材料包括以下原材料，按重量份配制而成：PP树脂50-7、ABS树脂20-50、扩链剂2-10、相容剂：5-15、抗氧剂0.2-0.6、润滑剂0.3-1.0。按以上配方称取原料后在高速混合机中混合3-5分钟，将混好的原料置于平行双螺杆挤出机中经熔融挤、造粒，制得超低收缩率PP/ABS合金材料。本发明所得的超低收缩率PP/ABS合金材料可广泛应用于汽车及其他应用方面。

Description

超低收缩率PP/ABS合金材料及其制备方法
[技术领域]
本发明涉及一种超低收缩率PP/ABS合金材料，本发明还涉及该材料的制备方法。
[背景技术]
聚丙烯（PP）是五大通用塑料之一，密度0.90g/cm3，是现有树脂第二轻的高分子材料（仅大于聚甲基戊烯，密度0.85g/cm3）。因其具有性能好、比重小、易于成型加工等特点，而广泛应用于家电、汽车等方面中。
但PP的成型收缩率较大，力学强度较小等缺点，限制了PP材料的应用。PP高性能化是当前塑料工业优先发展的重点领域之一。本文用ABS来增强PP的强度并增加PP的尺寸的稳定性及降低材料的模收缩率。
由于ABS的强度较高，尺寸稳定性好，且重量较轻，用来与PP做合金在汽车上用来替代部分填充PP或者替代部分ABS。可达到汽车轻量化和缓解汽车的成本压力
[发明内容]
本发明要解决的技术问题是提供一种超低收缩率PP/ABS合金材料，此材料能够满足汽车轻量化和降低成本的要求。
为了解决上述技术问题，本发明采用的技术方案是，一种超低收缩率PP/ABS合金材料，含有PP树脂、ABS树脂、相容剂、扩链剂、抗氧剂、润滑剂以重量比配制而成，其组分为：
Figure BDA00003853456700021
其中，所述的PP树脂为高流动耐寒聚丙烯BH3820；ABS树脂为757K；相容剂为自制相容剂ABS-g-MAH；扩链剂SAG005；抗氧剂由亚磷酸酯类抗氧剂和受阻酚类抗氧剂复配而成；润滑剂是硬脂酸盐类或者酰胺类润滑剂。
以上所述的超低收缩率PP/ABS合金材料，所述的PP树脂是熔融指数在10.0-40.0g/10min之间。
以上所述的超低收缩率PP/ABS合金材料，所述的ABS树脂是熔融指数在15.0-30.0g/10min之间。
以上所述的超低收缩率PP/ABS合金材料，所述的相容剂为ABS-g-MAH能有效增加ABS和PP/ABS合金之间的相容性。
以上所述的超低收缩率PP/ABS合金材料，所述的扩链剂为SAG005能有效增大分子量，从而提升材料的综合性能。
以上所述的超低收缩率PP/ABS合金材料，所述的抗氧剂为亚磷酸酯类抗氧剂和受阻酚类抗氧剂按2:1复配而成。
所述的超低收缩率PP/ABS合金材料，所述的硬脂酸盐类润滑剂为硬脂酸锌或硬脂酸钙。
本发明一种超低收缩率PP/ABS合金材料，包括以下步骤：
⑴按基础配方称取原料；
⑵将PP树脂、ABS树脂、相容剂、扩链剂、抗氧剂、润滑剂、其他助剂在高速混合机中混合3-5分钟；
⑶将混好的物料置于双螺杆的加料桶中，，混合物料经平行双螺杆挤出机熔融挤出、造粒。
一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
[具体实施方式]
下面结合实施例，对本发明作进一步详细说明：
一种超低收缩率PP/ABS合金材料，可以包括以下原材料按重量份配制成。
Figure BDA00003853456700031
实例1
将PP树脂67.7，ABS树脂20，相容剂6，扩链剂5，抗氧剂0.5、润滑剂0.8，在高速混合机中混合3-5分钟，高速混合机转速为800转/分；然后将混好的原料置于平行双螺杆挤出机料筒中，经料筒下料至挤出机后熔融挤出、造粒，其挤出工艺为：一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
实例2
将PP树脂57.7，ABS树脂30，相容剂6，扩链剂5，抗氧剂0.5、润滑剂0.8，在高速混合机中混合3-5分钟，高速混合机转速为800转/分；然后将混好的原料置于平行双螺杆挤出机中，经熔融挤、造粒，一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
实例3
将PP树脂47.7，ABS树脂40，相容剂6，扩链剂5，抗氧剂0.5、润滑剂0.8，在高速混合机中混合3-5分钟，高速混合机转速为800转/分；然后将混好的原料置于平行双螺杆挤出机料筒中，经料筒下料至挤出机后熔融挤出、造粒，其挤出工艺为：一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
实例4
将PP树脂37.7，ABS树脂50，相容剂，扩链剂5，抗氧剂0.5、润滑剂0.8，在高速混合机中混合3-5分钟，高速混合机转速为800转/分；然后将混好的原料置于平行双螺杆挤出机料筒中，经料筒下料至挤出机后熔融挤出、造粒，其挤出工艺为：一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
实例5
将PP树脂63.7，ABS树脂20，相容剂10，扩链剂5，抗氧剂0.5、润滑剂0.8，在高速混合机中混合3-5分钟，高速混合机转速为800转/分；然后将混好的原料置于平行双螺杆挤出机料筒中，经料筒下料至挤出机后熔融挤出、造粒，其挤出工艺为：一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
实例6
将PP树脂65.7，ABS树脂20，相容剂10，扩链剂3，抗氧剂0.5、润滑剂0.8，在高速混合机中混合3-5分钟，高速混合机转速为800转/分；然后将混好的原料置于平行双螺杆挤出机料筒中，经料筒下料至挤出机后熔融挤出、造粒，其挤出工艺为：一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
将按上述方法完成造粒的粒子材料事先在80-90℃的烘箱下干燥2小时，然后将干燥好的粒子材料在注塑成型机上注塑出标准测试样条。
拉伸强度按ASTM D-638标准进行检验。试样类型为I型，样条尺寸（mm）：（176±2）（长）×（12.6±0.2）（端部宽度）×(3.05±0.2)（厚度），拉伸速度为50mm/min；
弯曲强度和弯曲模量按ASTM D-790标准进行检验。试样类型为试样尺寸（mm）：（128±2）×（12.67±0.2）×(3.11±0.2)，弯曲速度为20mm/min；
悬臂梁缺口冲击强度按ASTM D-256标准进行检验。试样类型为I型，试样尺寸（mm）：（63±2）×（12.45±0.2）×(3.1±0.2)；缺口类型为A类，缺口剩余厚度为1.9mm；
材料的综合性能通过测试所得的拉伸强度、断裂伸长率、弯曲强度、弯曲模量、IZOD缺口冲击强度、进行评判。
实例1-6的配方及各项性能测试结果见表（一）：
表㈠实例1-6的配方及材料物性表
用ABS可改善PP基材的性能：利用ABS材料本身强度高的原因，在相容剂的作用下达到增强PP的效果。
用ABS可改善材料的模收缩：由于ABS属于非结晶材料，有比较优异的尺寸稳定性，与PP共混能破坏PP基材的结晶并由于其较低的模收缩，从而达到去效果。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (9)

1.一种超低收缩率PP/ABS合金材料，其特征在于，含有PP树脂、防火剂、填充物、抗氧剂、润滑剂，以重量比配制而成，其组分为：
Figure FDA00003853456600011
其中，所述的PP树脂为高流动耐寒聚丙烯BH3820；ABS树脂为757K；相容剂为自制相容剂ABS-g-MAH；扩链剂SAG005；抗氧剂由亚磷酸酯类抗氧剂和受阻酚类抗氧剂复配而成；润滑剂是硬脂酸盐类或者酰胺类润滑剂。
2.根据权利要求1所述的超低收缩率PP/ABS合金材料，其特征在于，所述的PP树脂是熔融指数在10.0-40.0g/10min之间。
3.根据权利要求1所述的超低收缩率PP/ABS合金材料，其特征在于，所述的ABS树脂是熔融指数在15.0-30.0g/10min之间。
4.根据权利要求1所述的超低收缩率PP/ABS合金材料，其特征在于，所述的相容剂为ABS-g-MAH能有效增加ABS和PP/ABS合金之间的相容性。
5.根据权利要求1所述的超低收缩率PP/ABS合金材料，其特征在于，所述的扩链剂为SAG005能有效增大分子量，从而提升材料的综合性能。
6.根据权利要求1所述的超低收缩率PP/ABS合金材料，其特征在于，所述的抗氧剂为亚磷酸酯类抗氧剂和受阻酚类抗氧剂按2:1复配而成。
7.根据权利要求1所述的超低收缩率PP/ABS合金材料，其特征在于，所述的硬脂酸盐类润滑剂为硬脂酸锌或硬脂酸钙。
8.权利要求1所述的超低收缩率PP/ABS合金材料的制备方法，其特征在于，包括以下步骤：
⑴按基础配方称取原料；
⑵将PP树脂、ABS树脂、相容剂、扩链剂、抗氧剂、润滑剂、其他助剂在高速混合机中混合3-5分钟；
⑶将混好的物料置于双螺杆的加料桶中，然后将混好的原料置于平行双螺杆挤出机料筒中，经料筒下料至挤出机后熔融挤出、造粒。
9.根据权利要求9所述的用于制造超低收缩率PP/ABS合金材料的制备方法，其特征在于，其挤出工艺为：
一区170-190℃、二区210-230℃、三区210-230℃、四区200-220℃，螺杆转速250-350r/min,喂料频率20-25Hz，熔体压力3.0-4.0MPa，真空度-0.03--0.06MPa。
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