双单体接枝聚丙烯/聚烯烃弹性体增容聚丙烯/硅灰石/β成核剂复合材料  

Polypropylene/Wollastonite/β-Nucleating Agent Composites UsingDual Monomers Grafted Polypropylene/Polyolefin Elastomer as Compatibilizer

作　　者：祝宝东[1] 赵庚 刘金月[2] 王鉴[1] Baodong Zhu;Geng Zhao;Jinyue Liu;JianWang(College of Chemistry and Chemical Engineering,Northeast Petroleum University;Computer and Information Technology College,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学化学化工学院 [2]东北石油大学计算机与信息技术学院,黑龙江大庆163318

出　　处：《高分子材料科学与工程》2023年第3期57-62,70,共7页Polymer Materials Science & Engineering

基　　金：东北石油大学校引导基金(035/15071202006)。

摘　　要：以丙烯酸-2-羟乙酯/马来酸酐接枝聚丙烯(PP)/聚烯烃弹性体共聚物(PPHM)为相容剂,通过熔融挤出制备了β成核聚丙烯/硅灰石复合材料。考察了PPHM含量对复合材料结构和性能的影响。红外光谱、扫描电镜和X射线衍射结果表明,PPHM与硅灰石表面形成了强相互作用,使复合体系的相容性得到提高,并对PP的结晶产生了明显影响。含50%(质量分数)PPHM的复合材料的缺口冲击强度达到(18.4±1.3)kJ/m~2,约为纯PP的3倍,而拉伸强度仅降低了20.3%,实现了韧性和强度之间的相对平衡;此外,复合材料的熔体强度和热稳定性优于纯PP。Theβ-nucleated polypropylene(PP)/wollastonite composites were prepared via melt-extrusion using polypropylene/polyolefin elastomer-g-2-hydroxyethyl acrylate/maleic anhydride(PPHM)as compatibilizer.The effects of PPHM content on the structure and properties of the composites were investigated.The infrared spectroscopy,scanning electron microscopy and X-ray diffraction results show that the PPHM forms a strong interaction at the surface of wollastonite,which improves the compatibility of the composite system and has a significant impact on the crystallization of PP.The notched impact strength of the composite with 50%PPHM reaches(18.4±1.3)kJ/m2,which is about 3 times that of pure PP,while the tensile strength is only reduced by 20.3%,achieving a relative balance between toughness and strength.Furthermore,the melt strength and thermal stabilities of the composites are better than those of neat PP.

关 键 词：聚丙烯 聚烯烃弹性体 硅灰石 Β成核剂 增容剂 

分 类 号：TB332[一般工业技术—材料科学与工程]