| 硅溶胶/含氟聚丙烯酸酯复合乳液的制备与表征 |
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| 引用本文： | 王丽,黄明富,徐祖顺,易昌凤. 硅溶胶/含氟聚丙烯酸酯复合乳液的制备与表征[J]. 合成树脂及塑料, 2012, 29(1): 24-27,70 |
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| 作者姓名： | 王丽 黄明富 徐祖顺 易昌凤 |
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| 作者单位： | 1. 湖北大学材料科学与工程学院,湖北省武汉市,430062
2. 湖北大学材料科学与工程学院,湖北省武汉市430062;湖北大学功能材料绿色制备与应用省部共建教育部重点实验室,湖北省武汉市430062 |
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| 基金项目： | 湖北省科技厅创新群体基金 |
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| 摘 要： | 采用经典的St(o)ber法在常温下制备纳米级硅溶胶,用3-(甲基丙烯酰氧)丙基三甲氧基硅烷对其改性.在阴离子乳化剂和非离子乳化剂共同存在下,通过乳液聚合制备了硅溶胶/含氟聚丙烯酸酯复合乳液.表征了乳胶粒形貌,测试了共聚物组成及性能、乳液稳定性和乳胶膜性能.结果表明:乳胶粒有明显的核壳结构,乳液有良好的储存稳定性、稀释稳定性、高温和低温稳定性；硅溶胶/含氟聚丙烯酸酯复合乳胶膜吸水率达12.50％,对水的接触角为93 5°；复合物的热稳定性高于普通聚丙烯酸酯共聚物和含氟聚丙烯酸酯共聚物.
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| 关 键 词： | 硅溶胶 含氟聚丙烯酸酯 复合乳液 核壳结构 稳定性 接触角 |
Preparation and characterization of silica sol/fluoroacrylate nanocomposite emulsion |
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| Wang Li , Huang Mingfu , Xu Zushun , Yi Changfeng. Preparation and characterization of silica sol/fluoroacrylate nanocomposite emulsion[J]. China Synthetic Resin and Plastics, 2012, 29(1): 24-27,70 |
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| Authors: | Wang Li Huang Mingfu Xu Zushun Yi Changfeng |
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| Affiliation: | 1,2(1.Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials,Wuhan 430062,China;2.College of Materials Science and Engineering,Hubei University,Wuhan 430062,China) |
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| Abstract: | Nanoscale silica sol was made at ambient temperature by St ber method and modified with 3-(trimethoxysilyl)propylmethacrylate(KH-570).The silica sol/fluoroacrylate nanocomposite emulsion was prepared by emulsion polymerization in the co-presence of an anionic and a nonionic emulsifier.The morphology of latex particles was characterized.The composition and properties of the copolymer,the stability of the emulsion and the performance of the emulsion film were tested.The results show that the nanocomposite particles have distinct core-shell structure;the emulsion has good stabilities of storage,dilution,heat-resistant and cold-resistance;the film made of the nanocomposite has water absorption of 12.50% and water contact angle of 93.5°;the nanocomposite′s thermal stability is superior to that of general polyacrylate copolymer and fluorinated polyacrylate copolymer. |
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| Keywords: | silica sol fluoroacrylate nanocomposite emulsion core-shell structure stability contact angle |
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