副教授 博士生导师 硕士生导师
性别: 男
毕业院校: 大连理工大学
学位: 博士
所在单位: 化工学院
学科: 高分子材料. 高分子化学与物理. 功能材料化学与化工
办公地点: 西部校区化工实验楼A303
联系方式: 办公室电话:84986101,13610963135
电子邮箱: zhangchq@dlut.edu.cn
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论文类型: 期刊论文
发表时间: 2022-06-29
发表刊物: 大连理工大学学报
卷号: 51
期号: 4
页面范围: 479-485
ISSN号: 1000-8608
摘要: The poly(acrylonitrile-butadiene-styrene)(ABS)resins were synthesized
via bulk polymerization method using nickel catalyzed high-cis
polybutadiene rubber(Ni-9004),lithium catalyzed low-cis polybutadiene
rubber(Li-700A)and their composite rubbers as modifiers.The influences
of reaction time and content of composite rubber on the polymerization
reaction,grafting parameters and microstructures of ABS were
investigated.And the morphologies and mechanical properties of resins
under different incorporation ratio of composite rubbers were also
researched.It is shown that the grafting degree of Ni-9004 gradually
increases and its grafting efficiency and volume fraction of rubber
phase gradually decrease with the reaction time.Besides,an obvious phase
inversion occurs in the polymerization process and the final ABS resin
presents a typical core-shell structure.And its morphology can be
distinctly improved when combined with Li-700A.Furthermore,the lower
amount of composite rubber is beneficial to grafting and occlusion,which
shows a positive reinforcement value;an augmented particle size and a
negative value are obtained while composite rubber amount
increases.Performance measurements show that the toughening effect of
Li-700A can be significantly enhanced by incorporating Ni-9004.When its
incorporation content reaches 75%,the notched Izod impact strength of
ABS resin is improved by at least 150%,while there is no loss of the
tensile strength.
备注: 新增回溯数据