甲基纤维素对PP/EVA/GF浮纤现象及性能的影响
Effect of methyl cellulose on floating fiber phenomenon and properties of PP/EVA/GF composites
张李 1夏英 1王书唯1
作者信息
- 1. 大连工业大学纺织与材料工程学院,辽宁 大连 116034
- 折叠
摘要
将甲基纤维素(MC)填充于聚丙烯/乙烯-醋酸乙烯酯共聚物/玻璃纤维(PP/EVA/GF)复合体系制备了 PP/EVA/GF/MC.研究了 MC对PP/EVA/GF的力学性能、微观结构、结晶性能和流动性能的影响.结果表明,在MC用量2份的情况下,PP/EVA/GF/MC表现出优异的力学性能,其拉伸强度为20.20 MPa,弯曲强度为38.79 MPa,分别比PP/EVA/GF提高了 12.97％和56.28％.加入MC能有效改善PP/EVA/GF的浮纤现象,制品表面玻纤数目明显减少.PP/EVA/GF/MC结晶度为35.72％,比PP/EVA/GF结晶度提高了 4.97％.剪切速率低于100 s-1时,PP/EVA/GF/MC黏度低于PP/EVA/GF,表明MC能提升PP/EVA/GF的流动性.
Abstract
PP/EVA/GF/MC composites were prepared by filling methyl cellulose(MC)in polypropylene/ethylene vinyl acetate copolymer/glass fiber(PP/EVA/GF)composite system.The effects of MC on the mechanical properties,microstructure,crystalline properties and flow properties of PP/EVA/GF composites were investigated.The results showed that at the addition of 2 parts of MC,PP/EVA/GF/MC exhibited excellent mechanical properties,with a tensile strength of 20.20 MPa and a bending strength of 38.79 MPa,which were 12.97％and 56.28％higher than PP/EVA/GF,respectively.The floating fiber phenomenon of PP/EVA/GF could be effectively improved by adding MC,and the number of glass fiber on the surface of the products was obviously reduced.The crystallinity of PP/EVA/GF/MC is 35.72％,which is 4.97％higher than that of PP/EVA/GF.When the shear rate is below 100 s-1,the viscosity of PP/EVA/GF/MC is lower than that of PP/EVA/GF,indicating that the fluidity of PP/EVA/GF could be improved by MC.
关键词
甲基纤维素/聚丙烯/乙烯-醋酸乙烯酯共聚物/玻璃纤维/浮纤改善Key words
methyl cellulose/polypropylene/ethylene vinyl acetate copolymer/glass fiber/floating fiber improvement引用本文复制引用
基金项目
辽宁省教育厅科学研究经费项目(面上项目)(LJKZ0513)
辽宁省"兴辽英才计划"项目(XLYC1906017)
辽宁省教育厅青年科技人才项目(J2019046)
出版年
2024
国家科技期刊平台
NSTL
万方数据