PMMA/ABS/UPR复合板废料改性聚丙烯的研究  

Studies of polypropylene modified by waste of PMMA/ABS/UPR multilayer plates

作　　者：曾一铮[1] 游长江[1] 李建雄[1] 贾德民[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《材料研究与应用》2010年第4期685-692,共8页Materials Research and Application

摘　　要：硅烷偶联剂处理的多层塑料复合板废料(WGFRP)与增容剂和改性蒙脱土(OMMT)并用后,通过与聚丙烯(PP)熔融共混,制备了PP/WGFRP/相容剂/OMMT复合材料.采用热重分析(TGA)、扫描电子显微镜(SEM)和测定力学性能,研究了WGFRP、增容剂和OMMT对复合材料的结构与性能的影响.结果表明,当用质量分数1%的硅烷偶联剂KH570处理的WGFRP(粒径0.150mm)为20份,相容剂为2份,复合材料的冲击强度比纯PP提高约113%,拉伸强度变化不大;加入双改性蒙脱土后力学性能和热稳定性进一步提高.SEM观察到PP/WGFRP/相容剂复合材料在断裂过程中发生塑性变形,其韧性较好,加入改性蒙脱土后,复合材料形态呈现出花瓣状,有利于提高力学性能.TGA结果表明,随着WGFRP和改性蒙脱土用量的增加,复合材料的热稳定性提高.The waste of PMMA/ABS/UPR multilayer plates （WGFRP） which was treated by silane coupling agents,compatibilizer,double-surface organo-modified montmorillonite（OMMT）,were used to modify polypropylene by melt compounding. The structure and properties of the composites were studied by thermogravimetric analyzer （TGA） and scanning electron microscope （SEM）. The results show that when WGFRP（100 mesh and modified by 1wt% KH570）was 20 phr,compatibilizer was 2 phr,the impact strength of the composites was 113% higher than pure PP,the tensile strength had a little change; The mechanical properties and thermal stability were further increased by adding OMMT. SEM reveals that the fracture surface of PP/KH570-WGFRP/compatibilizer composites had plastic deformation and better toughness,the morphology was improved by the addition of OMMT. TGA results suggest that thermal stability of PP increases with the increase amount of WGFRP and OMMT.

关 键 词：多层塑料复合板固体废料 聚丙烯 ABS 不饱和聚酯 改性蒙脱土 

分 类 号：X783.2[环境科学与工程—环境工程]