Effect of the matrix plasticization behavior on mechanical properties of PVC/ABS blends
Effect of the matrix plasticization behavior on mechanical properties of PVC/ABS blends
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基体塑化行为对PVC/ABS共混物机械性能的影响
DOI：
10.1515/polyeng-2015-0533
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发表时间：
2017-03
影响因子：
2
通讯作者：
Zhang Huixuan
中科院分区：
文献类型：
--
作者：
Liu Baijun;Wang Yinglin;Gao Yuan;Zhong Rui;Zhang Fucai;Zhang Mingyao;Zhang Huixuan
摘要采用乳液聚合法制备了丙烯腈-丁二烯-苯乙烯（ABS）接枝共聚物，对不同分子量的聚氯乙烯（PVC）树脂进行了改性。研究了PVC树脂分子量对PVC/ABS共混物动态力学性能的影响以及基体增塑行为对共混物冲击力学性能和形态结构的影响。PVC/ABS共混物的tan δ峰出现在DMA测得的相同温度下，表明PVC/ABS共混物的相容性与PVC的分子量无关。缺口悬臂梁冲击试验结果表明，当在165°C下研磨时，脆韧转变（BDT）所需的聚丁二烯（PB）橡胶的量与PVC的分子量一起增加。提高操作温度和添加增塑剂邻苯二甲酸二辛酯（DOP）可以改变基体的塑化程度和BDT。在165°C的研磨温度下，与在不存在DOP的情况下添加7.2重量%PB相比，当添加DOP时仅用3.6重量% PB达到BDT。用透射电子显微镜（TEM）研究了不同塑化程度的PVC/ABS共混物的形态结构，发现在165°C下球磨的PVC-1/ABS共混物比其它系列的PVC共混物有更大的未着色区。
Abstract Acrylonitrile-butadiene-styrene (ABS) grafted copolymer prepared by emulsion polymerization was used to modify different molecular weight poly (vinyl chloride) (PVC) resins. The effects of the molecular weight of the PVC resins on dynamic mechanical analyses (DMA) of PVC/ABS blends and matrix plasticizing behavior on the impact mechanical properties and the morphology were investigated. The tan δ peaks of PVC/ABS blends occurred at the same temperature obtained by DMA, indicating that miscibility of PVC/ABS blends was independent of the molecular weight of PVC. The notched Izod impact test results indicated that the amount of polybutadiene (PB) rubber needed for the brittle-ductile transition (BDT) increases together with the molecular weight of PVC when milled at 165°C. Increasing the operation temperature and adding the plasticizer dioctyl phthalate (DOP) could change the matrix plasticizing extent and the BDT. At a milling temperature of 165°C, the BDT was reached only with 3.6 wt% PB when DOP was added, in contrast to the addition of 7.2 wt% PB in the absence of DOP. The morphology of different plasticized degree of PVC/ABS blends was studied by transmission electron microscopy (TEM) showing that the PVC-1/ABS blends milled at 165°C showed a larger unstained area than the other series of PVC blends.
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影响因子：
19.6
作者：
E. Esmizadeh;G. Naderi;M. Ghoreishy;G. Bakhshandeh
通讯作者：
E. Esmizadeh;G. Naderi;M. Ghoreishy;G. Bakhshandeh
影响因子：
4.6
作者：
P. P. Gan-P.;D. R. Paul;A. Padwa
通讯作者：
P. P. Gan-P.;D. R. Paul;A. Padwa
影响因子：
3.2
作者：
Lee, JS;Chang, FC
通讯作者：
Chang, FC
影响因子：
3
作者：
A. Zamani;F. Abbasi;A. Agah
通讯作者：
A. Zamani;F. Abbasi;A. Agah
影响因子：
3
作者：
Gao, Guanghui;Zhou, Chao;Zhang, Huixuan
通讯作者：
Zhang, Huixuan