摘要
采用乳液聚合的方法合成了反应性核壳结构丙烯酸酯类抗冲击改性剂(m-ACR),使用双辊开炼机制备了聚氯乙烯(PVC)/椴木粉(WF)/m-ACR复合材料。通过力学性能测试和扫描电镜分析表明,m-ACR复合材料体系的力学性能得到提高,木粉与PVC界面结合性能得到改善,m-ACR的添加量为9 phr时,m-ACR体系的拉伸强度较未改性ACR体系的拉伸强度提高了8.74%;与ACR相比m-ACR增韧PVC效率略有降低,添加量为10 phr时冲击强度较PVC/WF体系提高了208%;动态力学分析表明,m-ACR加入后,复合材料体系的黏度增大,玻璃化温度增加。
The reactive acrylics impact modifier （m-ACR） with core-shell construction was synthesized by emulsion polymerization, and the polyvinyl chloride （PVC）/basswood flour （WF）/m-ACR composites were prepared by double roller mixing mill. The results from mechanical testing and scanning electron microscopy show that the mechanical properties of the PVC/WF/m-ACR composite system are improved because of the better interracial adhesion between wood flour and PVC. Compared to the unmodified ACR, m-ACR with 9 phr make the tensile strength of the PVC/WF/m-ACR composites increase by 8.74%. The toughening efficiency of m-ACR is slightly lower than that of ACR, while the impact strength of the PVC/WF! m-ACR composites with 10 phr m-ACR increases by 208% compared to PVC/WF. Dynamic mechanical analysis indicates that the glass transition temperature and viscosity of the composites are improved when m- ACR is added.
出处
《塑料工业》
CAS
CSCD
北大核心
2016年第5期35-38,83,共5页
China Plastics Industry
基金
国家自然科学基金项目(51173020)
吉林省科技厅项目(20140203016GX)
关键词
聚氯乙烯
木塑复合材料
木粉
丙烯酸酯类抗冲击改性剂
力学性能
Polyvingl Chloride
Wood plastic composites
Wood flour
Acrylics Impact Modifier
Mechanical Properties
