摘要
以蓖麻植物纤维为原料,以硅烷偶联剂KH-590对其进行表面修饰改性,并制备了不同植物纤维含量的PP/改性植物纤维复合材料。以硅烷偶联剂正辛基三乙氧基硅烷改性植物纤维和未改性植物纤维为参照,对复合材料性能进行分析,结果表明:在植物纤维含量大于30%时,复合材料形成了微交联结构。在植物纤维含量大于30%时,复合材料拥有更高的拉伸强度、弯曲强度和弯曲模量,并且热稳定性更高,但熔体流动性较差、断裂标称应变较低。
Castor plant fiber was modified by silane coupling agent KH-590,and the PP/modified plant fiber composites with different plant fiber content were prepared.Take the silane coupling agent n-octyltriethoxysilane modified plant fiber and unmodified plant fiber as a reference,the performance of the composites was analyzed.The results showed that when the content of plant fiber was more than 30%,the composites formed micro crosslinking structure.When the content of plant fiber was more than 30%,the composites had higher tensile strength,bending strength and bending modulus,and the thermal stability is higher,However,the melt fluidity is poor and the fracture nominal strain is lower.
作者
张玲
ZHANG Ling(Yantai Engineering&Technology College,Yantai 264006,China)
出处
《塑料科技》
CAS
北大核心
2021年第2期23-27,共5页
Plastics Science and Technology
关键词
植物纤维
聚丙烯
微交联结构
表面改性
Plant fiber
Polypropylene
Micro crosslinking structure
Surface modification
