摘要
以高密度聚乙烯(PE–HD)为基体材料,剑麻纤维(SF)为增强填充材料,利用不同的偶联剂(硅烷偶联剂,钛酸酯偶联剂)改性SF,用熔融共混法制备一系列PE–HD/SF复合材料。采用扫描电子显微镜、广角X射线衍射仪、差示扫描量热仪、维卡软化仪及万能试验机等测试了复合材料的微观形貌、结晶性能、热及力学性能。结果表明,偶联剂改性的SF与PE–HD有着较好的界面结合,SF的添加使得PE–HD的结晶度下降,热变形温度提高;与未改性的SF相比,当硅烷偶联剂改性SF添加量为10%时,PE–HD基复合材料的拉伸强度、弯曲强度和冲击强度明显提高。
With high density polyethylene(PE–HD)as matrix material,sisal fiber(SF)and modified SF treated with couplingagents(silane coupling agent and titanate coupling agent)as the reinforced filler material,a series of PE–HD/SF compositeswere prepared by melt blending.Scanning electron microscope,wide angle X-ray diffraction,differential scanning calorimetry,Vicat softener and universal testing machine were used to test microstructure,thermal properties and mechanical properties of thecomposites.The results show that the interface bonding between modified SF and PE–HD become good,the crystallinity and heatdistortion temperature of PE–HD matrix decrease with the introduction of modified SF.Compared to untreated SF,when SF contentis10%,tensile strength,flexural strength and impact strength of the PE–HD-based composite improve clearly.
作者
朱艳
王忠
贾仕奎
陈立贵
付蕾
Zhu Yan;Wang Zhong;Jia Shikui;Chen Ligui;Fu Lei(School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China)
出处
《工程塑料应用》
CAS
CSCD
北大核心
2017年第9期7-12,共6页
Engineering Plastics Application
基金
陕西省自然科学基础研究计划项目(2017 JQ5071)
关键词
高密度聚乙烯
剑麻纤维
偶联剂
热性能
力学性能
high density polyethylene
sisal fiber
coupling agent
thermal properties
mechanical properties
作者简介
联系人：贾仕奎，博士，主要研究方向为聚合物基复合材料先进制备、微观结构及性能
