| 纳米CaCO_3对CPE/ACR共混增韧PVC力学性能的影响 |
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| 引用本文： | 冯鹏程,余剑英.纳米CaCO_3对CPE/ACR共混增韧PVC力学性能的影响[J].高分子材料科学与工程,2010(1):81-84. |
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| 作者姓名： | 冯鹏程 余剑英 |
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| 作者单位： | 武汉理工大学材料科学与工程学院; |
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| 基金项目： | 内蒙古交通厅科技攻关项目(NJ-2007-22) |
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| 摘 要： | 研究了纳米碳酸钙(CaCO_3)对氯化聚乙烯(CPE)/丙烯酸树脂(ACR)/聚氯乙烯(PVC)共混体系力学性能的影响,并通过动态机械热分析(DMA)和扫描电子显微镜(SEM)对共混体系的力学松弛行为、纳米CaCO_3在CPE/ACR/PVC共混体系中的分散状态及共混体系的断面形貌特征进行了表征。结果表明,纳米CaCO_3能够显著提高CPE/ACR/PVC共混体系的冲击性能,而不降低共混体系的强度。加入纳米CaCO_3后,共混体系的低温损耗(tanδ)峰强度显著增大,并且与冲击强度的变化具有很好的对应性。SEM观察发现,8 phr纳米CaCO_3可在CPE/ACR/PVC基体中形成纳米尺度的均匀分散,加入过多纳米CaCO_3则会出现明显的团聚。
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| 关 键 词： | 聚氯乙烯 纳米碳酸钙 氯化聚乙烯 核壳丙烯酸树脂 增韧 |
Effects of Nano-CaCO_3 on Mechanical Properties of PVC Toughened with CPE/ACR Blends |
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| FENG Peng-cheng,YU Jian-ying.Effects of Nano-CaCO_3 on Mechanical Properties of PVC Toughened with CPE/ACR Blends[J].Polymer Materials Science & Engineering,2010(1):81-84. |
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| Authors: | FENG Peng-cheng YU Jian-ying |
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| Affiliation: | School of Material Science and Engineering;Wuhan University of Technology;Wuhan 430070;China |
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| Abstract: | The effects of nanoscale calcium carbonate(nano-CaCO_3) on mechanical properties of chlorinated polyethylene(CPE)/acrylics(ACR)/poly(vinyl chloride)(PVC) blends were investigated.The mechanical relaxation behavior of the blends,the dispersed situation of nano-CaCO_3 in polyblends matrix and the fractured surface morphologies of the blends were characterized by dynamic mechanical analyzer(DMA) and scanning electron microscopy(SEM),respectively.The results show that the impact properties of the CPE/ACR/PVC bl... |
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| Keywords: | poly(vinyl chloride) nano-CaCO3 chlorinated polyethylene core-shell acrylics toughening |
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