| 浓乳液聚合方法制备聚丙烯酸酯/膨润土纳米复合材料 |
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| 引用本文： | 任申冬,杜中杰,张晨,项爱民.浓乳液聚合方法制备聚丙烯酸酯/膨润土纳米复合材料[J].高分子材料科学与工程,2005,21(2):77-80. |
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| 作者姓名： | 任申冬 杜中杰 张晨 项爱民 |
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| 作者单位： | 新型高分子材料的制备与加工北京市重点实验室,北京化工大学,北京,100029;新型高分子材料的制备与加工北京市重点实验室,北京化工大学,北京,100029;新型高分子材料的制备与加工北京市重点实验室,北京化工大学,北京,100029;新型高分子材料的制备与加工北京市重点实验室,北京化工大学,北京,100029 |
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| 摘 要： | 采用阳离子交换的方法将膨润土表面进行有机化预处理,X射线衍射的测定结果表明,膨润土的层间距由原来的1.5 nm增加到2.3 nm,并且层间距与预处理时间、温度和阳离子表面活性剂的浓度有密切关系.采用浓乳液聚合方法制备聚丙烯酸酯/膨润土纳米材料并用透射电镜对所得聚合产物进行了表征,发现聚合物中的膨润土片层分散均匀,且达到了纳米级尺寸.以所制备的聚丙烯酸酯/膨润土纳米材料为抗冲改性剂对聚氯乙烯进行抗冲改性,结果表明能极大地提高其抗冲性能.
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| 关 键 词： | 膨润土 浓乳液 纳米复合材料 |
| 文章编号： | 1000-7555(2005)02-0077-04 |
| 修稿时间： | 2003年7月16日 |
PREPARATION OF POLYACRYLATE/BENTONITE NANOCOMPOSITES BY CONCENTRATED EMULSION POLYMERIZATION |
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| REN Shen-dong,DU Zhong-jie,ZHANG Chen,XIANG Ai-min.PREPARATION OF POLYACRYLATE/BENTONITE NANOCOMPOSITES BY CONCENTRATED EMULSION POLYMERIZATION[J].Polymer Materials Science & Engineering,2005,21(2):77-80. |
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| Authors: | REN Shen-dong DU Zhong-jie ZHANG Chen XIANG Ai-min |
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| Affiliation: | REN Shen-dong,DU Zhong-jie,ZHANG Chen,XIANG Ai-min f Novel Polymer Material,Beijing University of Chemical Technology,Beijing 100029,China) |
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| Abstract: | Organobentonite was made by cation-exchange reaction of cetyl trimethyl ammoniun bromide (CTAB). Polyacrylate /bentonite nanocomposits were synthesized by concentrated emulsion polymerization. The results show that the bentonite interlayer distance increases from (1.5) nm to (2.3) nm, and the interlayer distance is affected by the ion-exchange reaction condition, such as time, temperature and concentration of CTAB. The bentonite in the nanocomposite is dispersed finely and the polymer chains intercalate into the organobentonite. The impact strength of PVC is improved largely by the polyacrylate/bentonite nanocomposites compared to the ACR impact modifier. |
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| Keywords: | bentonite concentrated emulsion nanocomposites |
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