| 纳米CaCO_3/ACR复合物的制备及在PVC改性中的应用 |
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| 引用本文： | 佘庆彦,王美英,刘国栋,瞿雄伟.纳米CaCO_3/ACR复合物的制备及在PVC改性中的应用[J].高分子材料科学与工程,2005(6). |
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| 作者姓名： | 佘庆彦 王美英 刘国栋 瞿雄伟 |
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| 作者单位： | 河北工业大学化工学院高分子科学与工程研究所 天津300130 |
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| 基金项目： | 河北省自然科学基金资助项目(201006) |
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| 摘 要： | 采用种子乳液聚合法合成了具有核壳结构的纳米C aCO3/ACR复合胶乳。将其与PVC进行共混,考察了不同界面结构对复合材料力学性能的影响,并用TEM、SEM对复合粒子分散情况及共混物断面形态进行了考察。结果表明,纳米复合粒子在PVC基质中达到了纳米级分散;用钛酸酯处理的纳米C aCO3优于用硬脂酸处理的纳米C aCO3的改性效果;核层与壳层单体比、壳层单体比都存在最佳值。
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| 关 键 词： | 纳米复合粒子 界面作用 乳液聚合 聚氯乙烯增韧 |
PREPARATION OF NANO-CaCO_3/ACR COMPOSITE PARTICLE AND ITS APPLICATION IN TOUGHENING PVC MATRIX |
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| SHE Qing-yan,WANG Mei-ying,LIU Guo-dong,QU Xiong-wei.PREPARATION OF NANO-CaCO_3/ACR COMPOSITE PARTICLE AND ITS APPLICATION IN TOUGHENING PVC MATRIX[J].Polymer Materials Science & Engineering,2005(6). |
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| Authors: | SHE Qing-yan WANG Mei-ying LIU Guo-dong QU Xiong-wei |
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| Abstract: | The nano-CaCO_3/ACR latex particles with core-shell structure were synthesized through seeded emulsion polymerization successfully.Blends were prepared by mixing above nano compound particles with suspended PVC resin.The dispersion of nano compound particles in the PVC matrix and the morphology of the fracture surface were confirmed by TEM and SEM,respectively.The relationship between the interfacial structure and mechanical properties was investigated.The results show that the toughening effect of the nano-CaCO_3 particle treated with titanate on PVC matrix is better than that of particle with stearic acid due to its strong interfacial combination.Meanwhile,there are the optimum values for the ratios of BA/(MMA+St) and MMA/St in shell layer in order to obtain better toughening materials. |
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| Keywords: | nano compound particle interfacial action emulsion polymerization toughening PVC |
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