| ACR/纳米SiO2复合粒子的合成及其对PVC的增韧作用 |
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| 引用本文： | 戚栋明,包永忠,黄志明,翁志学.ACR/纳米SiO2复合粒子的合成及其对PVC的增韧作用[J].聚氯乙烯,2006(4):6-9. |
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| 作者姓名： | 戚栋明 包永忠 黄志明 翁志学 |
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| 作者单位： | 浙江大学聚合反应工程国家重点实验室,浙江,杭州,310027 |
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| 摘 要： | 研究了细乳液聚合制备ACR/纳米SiO2复合粒子及其对PVC的增韧作用。对丙烯酸酯单体中的纳米SiO2粒子进行偶联改性,提高了ACR对纳米粒子的包覆率和接枝率,复合粒子与PVC共混后纳米SiO2粒子在PVC基体中的分散性好。复合粒子对PVC的增韧效果明显优于纳米SiO2粒子和未改性ACR共聚物,复合粒子的用量较少时,就可明显提高PVC的冲击强度。
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| 关 键 词： | PVC ACR 纳米SiO2 接枝 增韧 |
| 文章编号： | 1009-7937(2006)04-0006-04 |
| 修稿时间： | 2006年2月14日 |
Synthesis of ACR/nanometer SiO2 composite particles and their tonghening effect on PVC |
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| QI Dong-ming,BAO Yong-zhong,HUANG Zhi-ming,WENG Zhi-xue.Synthesis of ACR/nanometer SiO2 composite particles and their tonghening effect on PVC[J].Polyvinyl Chloride,2006(4):6-9. |
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| Authors: | QI Dong-ming BAO Yong-zhong HUANG Zhi-ming WENG Zhi-xue |
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| Abstract: | The preparation of ACR/nanometer SiO_2 composite particles by microemulsion polymerization and their toughening effect on PVC were studied.After the nanometer SiO_2 particles dispersed in acrylate monomers were coupling modified,the encapsulating rate and grafting rate of ACR onto nanometer particles increased,and the nanometer SiO_2 particles well dispersed in PVC matrix after blending the composite particles with PVC.The toughening effect of composite particles on PVC was much better than that of nanometer SiO_2 particles and that of unmodified ACR copolymer.The impact strength of PVC was significantly improved when a smaller amount of composite particles were added. |
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| Keywords: | PVC ACR nanometer SiO_2 grafting toughening |
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