文献类型：期刊文献

中文题名：PP/MM复合材料的抗老化性能

英文题名：Anti-aging Properties of the PP / Modified Sericite Mica Composite Material

作者：段攀峰 刘先龙 白琪俊 伍玉娇

第一作者：段攀峰

机构：[1]贵州大学材料与冶金学院材料学;[2]贵州理工学院材料与冶金工程学院;[3]国家复合改性聚合物材料工程技术研究中心

第一机构：贵州大学材料与冶金学院材料学,贵州贵阳550025

年份：2017

卷号：45

期号：1

起止页码：32-35

中文期刊名：塑料工业

外文期刊名：China Plastics Industry

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

语种：中文

中文关键词：聚丙烯;改性绢云母;复合材料;抗老化;力学性能

外文关键词：Polypropylene ; Modified Sericite ; Composite Material ; Anti-aging; Mechanics Performance

摘要：将3,5-二-叔丁基-4-羟基苯基丙酸(AO)插层改性绢云母与聚丙烯(PP)共混挤出注塑制得PP/改性绢云母复合材料,通过老化试验箱进行人工老化实验,然后对不同老化时间材料力学性能、微观形貌及结晶性能进行表征,来研究不同含量AO对复合材料抗热氧老化过程中材料性能的影响。研究表明,AO的加入显著提升了材料的拉伸强度、弯曲强度和冲击强度,特别是在老化35 d后,试样弯曲强度不降反升,由25.1 MPa提高至34.0 MPa,同时改性绢云母的加入使复合材料的球晶完善度增加。
After modified sericite mica （MM） was produced with 3, 5-di-tert-butyl-4-hydroxyphenylpropionic acid （AO） as the intercalating agent, the polypropylene （PP）/MM composite material was prepared by extrusion blending method followed by injection. Through artificial aging experiments with aging test box, the mechanical properties, morphology and crystalline properties of the composite materials with different aging time were characterized to study the effects of AO content on the properties of the composites during aging. The results show that the addition of AO significantly improves the tensile and bending and impact strength; especially after aging for 30 days, the bending strength of the specimen do not fall but increases from 25.1 MPa to 34. 0 MPa, and the addition of the modified sericite makes the spherulite degree of the composite material increase.