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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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纳米sio2/聚丙烯酸酯组装杂化乳液的合成及表征
DOI: 10.3969/j.issn.1671-7627.2004.06.014, PP. 57-60
Keywords: 纳米sio2,聚丙烯酸酯,乳液聚合,杂化乳液
Abstract:
通过乳液聚合法成功合成了纳米sio2/聚丙烯酸酯杂化乳液.首先将纳米sio2经过表面官能团化处理,使其表面含有活性官能团,然后经过乳液聚合使丙烯酸酯单体在纳米sio2表面引发聚合,合成了具有核壳结构的纳米杂化乳液.采用透射电子显微镜(tem)对乳液的微观结构进行了表征,并对胶膜进行了机械力学性能测试和表面润湿性能测试.结果表明纳米sio2的表面官能团化处理改善了纳米粒子在乳液中的稳定性,当纳米sio2质量分数为0.2%时,杂化乳液胶膜的拉伸强度和断裂伸长率同时达到最大值.其表面润湿性与sio2质量分数有关,sio2质量分数为0.5%时其杂化乳胶膜的接触角最大,耐水性最好.
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