CN1191299C - 空调室外机专用耐候抗静电聚丙烯树脂 - Google Patents

空调室外机专用耐候抗静电聚丙烯树脂 Download PDF

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CN1191299C
CN1191299C CN 00117198 CN00117198A CN1191299C CN 1191299 C CN1191299 C CN 1191299C CN 00117198 CN00117198 CN 00117198 CN 00117198 A CN00117198 A CN 00117198A CN 1191299 C CN1191299 C CN 1191299C
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polypropylene
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air conditioner
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CN1277237A (zh
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郝源增
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GUANGZHOU SUPER-DRAGON ENGINEERING PLASTICS CO., LTD.
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JUSAILONG ENGINEERING PLASTICS Co Ltd CONGHUA
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Abstract

一种空调室外机专用耐候抗静电聚丙烯树脂,其特征在于:组份的重量百分比为聚丙烯共聚物60~80%,聚丙烯均聚物5~20%,聚烯烃弹性体5~15%,无机填料5~28%,抗氧剂0.1~2%,光稳定剂0.1~2%,抗静电剂1~3%。本发明具有良好的热氧老化和光老化性能,经2000小时氙灯光照试验其颜色等级为3~4级,力学性能保持率在70%以上,表面电阻小于1010,适用于空调、沙滩椅等聚丙烯室外部件的制造。

Description

空调室外机专用耐候抗静电聚丙烯树脂
本发明涉及一种聚丙烯树脂,特别是一种空调室外机专用耐候抗静电聚丙烯树脂。
聚丙烯树脂是五大通用树脂之一,改性聚丙烯的种类也有许多种类型,用途也十分广泛。但聚丙烯的最大缺点是耐光老化性能差,在阳光短时间照射后其性能下降很多,因此限制了它在室外的应用,特别是对于要长期在露天放置的产品,更要经得起日晒、雨淋、严寒等不同气候条件的考验,显然改进了耐候性能的聚丙烯树脂可以大大拓展聚丙烯在户外的用途。对于空调机中的塑胶部件,在生产安装和使用过程中容易产生静电而影响外观,因此又需要塑胶材料有一定的抗静电效果。
本发明的目的在于提供一种具有耐候和抗静电性能,适合于空调室外机零部件使用的空调室外机专用耐候抗静电聚丙烯树脂。
本发明的目的可以通过以下措施来达到:一种空调室外机专用耐候抗静电聚丙烯树脂,其特征在于:组份的重量百分比为聚丙烯共聚物60~80%,聚丙烯均聚物5~20%,乙烯和己二烯的共聚物5~15%,滑石粉5~28%,抗氧剂0.1~2%,光稳定剂0.1~2%,抗静电剂1~3%。
本发明的目的还可以通过以下措施来达到:所述的聚丙烯共聚物为熔融指数在0.8~30g/10min之间的乙丙嵌段共聚物。所述的聚丙烯均聚物为熔融指数在0.8~30g/10min之间的均聚物。所述的抗氧剂为酚类抗氧剂1010和磷酸酯类抗氧剂168。所述的光稳定剂为受阻胺类光稳定剂、苯并***类光屏蔽剂。所述的抗静电剂为乙氧化胺、甘油-硬脂酸酯、脂肪族链烷醇酰胺。
聚丙烯共聚物即使在其玻璃化转变温度以下仍然有良好的抗冲击性能,遍布于半结晶态聚丙烯基体内的橡胶粒子能在界面上形成许多应力集中点引发局部形变,防止断裂扩展。选用的共聚聚丙烯中乙丙嵌段含量在12%为最佳。
聚丙烯均聚物有良好的刚性以利于部件的结构实用性,所选的均聚物为平均分子量在20~60万之间,分子量分布范围较宽为佳。
聚烯烃弹性体是一种由乙烯和长链单烯烃共聚得到的有类似于橡胶韧性的透明状颖粒,它和聚丙烯有良好的相容性,可以进一步改善聚丙烯的低温冲击性能。
无机填料的种类很多,包括碳酸钙、滑石粉、硫酸钡等,在体系中填加部分无机填料可以使材料有良好的刚性和增加尺寸的稳定性,降低制品收缩。
抗氧剂使聚丙烯在加工过程中有良好的加工稳定性,避免色泽、性能发生变化,尤其是在长期使用过程中和光稳定剂协同生效,提供良好的热氧老化性能。选用的抗氧剂种类包括主抗氧剂和辅抗氧剂,主抗氧剂可以选取用受阻酚类如1010,1076等,辅抗氧剂可以选用亚磷酸酯类如168,TNPP等。
光稳定剂可以保护聚丙烯的链段不受紫外线的破坏,大大改变聚丙烯的抗老化性能。光稳定剂可以选用受阻胺类如770,994等(944∶770∶1∶1),苯并***类如327,328等,对于黑色制品还可选用炭黑做光稳定剂。
抗静电剂的作用是通过加入到聚合物中,然后迁移到成品表面,通过与周围空气中的水分相互作用,形成导电层,以便于电荷分散,防止静电荷的积累。
本发明相比现有技术具有如下优点:具有良好的热氧老化和光老化性能,经2000小时氙灯光照试验其颜色等级为3~4级,力学性能保持率在70%以上,表面电阻小于1010,适用于空调、沙滩椅等聚丙烯室外部件的制造。
本发明下面将结合附图(实施例)作进一步详述:
实施例一
取60%聚丙烯共聚物、10%聚丙烯均聚物、10%聚烯烃弹性体、20%滑石粉(无机填料)混合,混合物经搅拌机混合后,用螺杆挤出机造粒(挤出温度为200~220℃,常压)。得到聚丙烯共混改性树脂。在500小时氙灯光照试验后颜色变化等级为粉化;在2000小时氙灯光照试验后颜色变化等级为粉化。
实施例二
取60%聚丙烯共聚物、10%聚丙烯均聚物、10%聚烯烃弹性体、19.8%滑石粉(无机填料)、0.2%的抗氧剂混合,用与实施例一相同的工艺,即得到聚丙烯共混改性树脂。在500小时氙灯光照试验后颜色变化等级为五级;在2000小时氙灯光照试验后颜色变化等级为粉化。
实施例三
取60%聚丙烯共聚物、10%聚丙烯均聚物、10%聚烯烃弹性体、19.3%滑石粉(无机填料)、0.2%的抗氧剂、0.5%光稳定剂混合,用与实施例一相同的工艺,即得到聚丙烯共混改性树脂。在500小时氙灯光照试验后颜色变化等级为二级;在2000小时氙灯光照试验后颜色变化等级为三级。
实施例四
取60%聚丙烯共聚物、10%聚丙烯均聚物、10%聚烯烃弹性体、19.1%滑石粉(无机填料)、0.2%的抗氧剂、0.5%光稳定剂混合,0.2%抗静电剂混合,用与实施例一相同的工艺,即得到聚丙烯共混改性树脂。在500小时氙灯光照试验后颜色变化等级为二级;在2000小时氙灯光照试验后颜色变化等级为四级。

Claims (5)

1、一种空调室外机专用耐候抗静电聚丙烯树脂,其特征在于:组份的重量百分比为聚丙烯共聚物60~80%,聚丙烯均聚物5~20%,乙烯和己二烯的共聚物5~15%,滑石粉5~28%,抗氧剂0.1~2%,光稳定剂0.1~2%,抗静电剂1~3%,聚丙烯共聚物为熔融指数在0.8~30g/10min之间的乙丙嵌段共聚物。
2、根据权利要求1所述的树脂,其特征在于:所述的聚丙烯均聚物为熔融指数在0.8~30g/10min之间的均聚物。
3、根据权利要求1所述的树脂,其特征在于:所述的抗氧剂为酚类抗氧剂1010和磷酸酯类抗氧剂168。
4、根据权利要求1所述的树脂,其特征在于:所述的光稳定剂为受阻胺类光稳定剂、苯并***类光屏蔽剂。
5、根据权利要求1所述的树脂,其特征在于:所述的抗静电剂为乙氧化胺、甘油-硬脂酸酯、脂肪族链烷醇酰胺。
CN 00117198 2000-06-22 2000-06-22 空调室外机专用耐候抗静电聚丙烯树脂 Expired - Lifetime CN1191299C (zh)

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US7259198B2 (en) * 2002-07-18 2007-08-21 Exxonmobil Chemical Patents Inc. Ultraviolet radiation stabilized polyolefins
CN101045805B (zh) * 2007-04-17 2010-08-04 广州市合诚化学有限公司 中空成型用填充聚丙烯树脂组合物及其制备方法
CN101481479B (zh) * 2009-02-09 2011-10-26 松下家电研究开发(杭州)有限公司 一种聚丙烯改性材料及其生产方法
CN101691435B (zh) * 2009-03-07 2011-11-30 从化市聚赛龙工程塑料有限公司 一种低voc高性能汽车内饰件专用pp复合材料及其制备方法
CN102993553A (zh) * 2011-09-14 2013-03-27 比亚迪股份有限公司 一种气味母粒及其制备方法
CN104403199A (zh) * 2014-12-05 2015-03-11 南京聚隆科技股份有限公司 一种挤出级高填充聚丙烯复合材料及其制备方法
CN107400326A (zh) * 2017-08-24 2017-11-28 张阳 一种医疗普通空调外机壳体复合材料及其制备方法
CN108365288A (zh) * 2018-01-25 2018-08-03 界首市天隆塑业科技有限公司 废旧电瓶外壳改性增强再生工艺
CN109401069A (zh) * 2018-08-23 2019-03-01 青岛国恩科技股份有限公司 空调室外机用高强度高冲击耐候聚丙烯材料及其制备方法
CN114539677A (zh) * 2021-12-31 2022-05-27 安徽星贝达新材料科技有限公司 一种光稳定剂复合材料及其制备方法

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