| 以PVC为外壳层的ACR抗冲改性剂的合成及其对PVC的增韧作用 |
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| 引用本文： | 任济民,张宁,包永忠,黄志明.以PVC为外壳层的ACR抗冲改性剂的合成及其对PVC的增韧作用[J].塑料工业,2011,39(2). |
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| 作者姓名： | 任济民 张宁 包永忠 黄志明 |
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| 作者单位： | 浙江大学化学工程与生物工程学系,化学工程国家重点实验室,浙江杭州310027 |
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| 基金项目： | 国家科技支撑计划项目课题资助 |
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| 摘 要： | 以聚丙烯酸丁酯(PBA)为内核,通过种子乳液聚合制备了分别以聚甲基丙烯酸甲酯(PMMA)、聚氯乙烯(PVC)、PMMA/PVC为壳层的纯丙烯酸酯(ACR)和PVC改性ACR乳液.扫描电镜观察发现,纯ACR乳胶粒子具有明显的核-壳结构,进一步包覆PVC后形成疏松外层.考察了不同结构ACR与PVC共混物的相态结构、抗冲性能和断面形貌,发现用PVC部分或完全替代PMMA壳层的改性ACR在PVC基体分散良好,具有与纯ACR相当的增韧PVC作用,冲击断面呈现典型的韧性断裂特征.
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| 关 键 词： | 乳液聚合 丙烯酸酯抗冲改性剂 聚氯乙烯 增韧 |
Synthesis of ACR Impact Modifier with PVC Shell and Its Toughening Efficiency on PVC |
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| REN Ji-min,ZHANG Ning,BAO Yong-zhong,HUANG Zhi-ming.Synthesis of ACR Impact Modifier with PVC Shell and Its Toughening Efficiency on PVC[J].China Plastics Industry,2011,39(2). |
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| Authors: | REN Ji-min ZHANG Ning BAO Yong-zhong HUANG Zhi-ming |
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| Affiliation: | REN Ji-min,ZHANG Ning,BAO Yong-zhong,HUANG Zhi-ming(Department of Chemical and Biological Engineering,State Key Laboratory of Chemical Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | With PBA as the internal core,PMMA,PVC,PMMA/PVC as shell,ACR and PVC modified ACR were synthesized through seeded emulsion polymerization.TEM photographs clearly showed that neat ACR latex particles exhibited two layers core-shell structure,and after coated by PVC exhibited loose out layer.The phase structure,impact property,and fracture surface of different ACR and PVC blends were studied.It was found that when part or all of the PMMA in the shell were replaced by PVC,the ACR still dispersed well,the modif... |
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| Keywords: | Emulsion Polymerization Acrylate Impact Modifier PVC Toughening |
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