桑琳

个人信息Personal Information

副研究员

博士生导师

硕士生导师

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:材料科学与工程学院

学科:车辆工程. 材料学. 高分子材料. 材料加工工程

办公地点:汽车学院东山实验室
A303

电子邮箱:sanglin@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

Mechanical Properties and Nonisothermal Crystallization of Polyamide 6/Carbon Fiber Composites Toughened by Maleated Elastomers

点击次数:

论文类型:期刊论文

第一作者:Li, Yi

通讯作者:Wei, ZY (reprint author), Dalian Univ Technol, Sch Automot Engn, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

合写作者:Xu, Jinting,Wei, Zhiyong,Xu, Yuqiang,Song, Ping,Chen, Guangyi,Sang, Lin,Chang, Ying,Liang, Jicai

发表时间:2014-11-01

发表刊物:POLYMER COMPOSITES

收录刊物:SCIE、EI、Scopus

卷号:35

期号:11

页面范围:2170-2179

ISSN号:0272-8397

摘要:Polyamide 6/carbon fiber (PA6/CF) composites toughened with maleated elastomers were prepared by melt blending using twin-screw extruder followed by injection molding. Three kinds of maleated elastomers, maleic anhydride (MAH)-grafted ethylene-vinyl acetate copolymer (EVA-g-MAH), MAH-grafted ethylene-propylene-diene terpolymer (EPDM-g-MAH), and MAH-grafted hydrogenated styrene-butadiene-styrene (SEBS-g-MAH), were used to toughen the PA6/CF composites. The mechanical properties, morphology, nonisothermal crystallization, and subsequent melting behavior of PA6 hybrid composites were investigated. Mechanical tests indicated that incorporation of elastomers improved the impact properties of CF-reinforced PA composites accompanied with loss of tensile strength and modulus. It was observed from scanning electron microscope photographs that modification with maleated elastomers improved the interfacial adhesion between the CFs and PA6 matrix. Nonisothermal crystallization behavior showed that three kinds of elastomers had negative effect on crystallization and retarded crystallization of PA6. Kissinger's analysis illustrated that addition of CF slightly increased the crystallization activation energy of PA6, whereas incorporation of elastomers reversed it compared with pure PA6. Furthermore, a slight decrease in crystallinity and melting peak of the composites after incorporation of elastomers was observed compared with pure PA6. Polarizing optical microscope results showed that the transcrystallinity phenomenon seemed to be also affected when the matrix was added by the elastomers. (C) 2014 Society of Plastics Engineers