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化工新型材料  2019, Vol. 47 Issue (6): 88-92    
  新材料与新技术 本期目录 | 过刊浏览 | 高级检索 |
原位聚合法制备纳米SiO2/PTFE改性丙烯酸酯复合乳液研究
陈静1, 杨建军1*, 付立兵2, 吴庆云1, 吴明元1, 张建安1, 王雷2, 丁朝阳2
1.安徽大学化学化工学院与安徽省绿色高分子重点实验室,合肥230601;
2.安徽华辰造纸网股份有限公司,芜湖241009
Preparation and property of SiO2/PTFE modified acrylate composite emulsion by in-situ polymerization
Chen Jing1, Yang Jianjun1, Fu Libing2, Wu Qingyun1, Wu Mingyuan1Zhang Jian'an1, Wang Lei2, Ding Chaoyang2
1.School of Chemistry and Chemical Engineering of Anhui University & Key Laboratory of Environment-friendly Polymer Materials of Anhui Province,Hefei 230601;
2.Anhui Huachen Paper-Makeing Net Co.,Ltd.,Wuhu 241009
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摘要 以三羟甲基丙烷三丙烯酸酯(TMPTA)、甲基丙烯酸甲酯(MMA)、苯乙烯(St)、丙烯酸正丁酯(BA)、2-甲基-2-丙烯酸十三烷基酯(TDMA)、硅酸乙酯(TEOS)和γ-甲基丙烯酰氧丙基三甲氧基硅烷(MPS)为反应单体,聚四氟乙烯(PTFE)分散液作种子,通过原位聚合法和种子乳液法制备出纳米SiO2、PTFE协同改性的丙烯酸酯(SiO2/PTFE/PA)复合乳液。利用傅里叶变换红外光谱仪、透射电子显微镜、扫描电子显微镜、热重分析仪和接触角/界面张力测量仪对复合乳液的结构与性能进行了表征和测试。结果表明:当PTFE占体系中丙烯酸酯类单体总质量16%、纳米SiO2用量为2.4%(质量分数)时,复合乳液平均粒径为151nm,胶膜表面水接触角为112.3°,吸水率为3.8%;在热失重5%和10%条件下,纳米SiO2/PTFE/PA胶膜热分解温度分别为347.7℃和375.5℃,相比改性丙烯酸酯胶膜热分解温度分别提高了59.6℃和27.7℃,疏水性和耐热性均有显著提高。
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陈静
杨建军
付立兵
吴庆云
吴明元
张建安
王雷
丁朝阳
关键词:  原位聚合法  聚四氟乙烯  疏水性  耐热性    
Abstract: The nano-SiO2/PTFE modified acrylate emulsion was prepared by in-situ polymerization and seed emulsion polymerization with trihydroxymethylpropyl trimethylacrylate(TMPTA),methyl methacrylate(MMA),styrene(St),butyl acrylate(BA),tridecyl methacrylate(TDMA),ethyl silicate(TEOS) and γ-methacryloxypropyltrimethoxysilane(MPS) as monomer,and PTFE dispersion liquid as seeds.The structure and properties of polymers were characterized and tested by FT-IR,TEM,SEM,TG and water contact angle measurement.The results showed that when the amount of PTFE dispersion was 16% and nano-SiO2 content was 2.4%,the average particle size of emulsion was 151nm and the surface water film contact angle was 112.3°,the water absorption rate was 3.8%,the characteristic decomposition temperature at 5% and 10% weight loss were 347.7℃ and 375.5℃,compared with the pure acrylate decomposition temperature increased by 59.6° and 27.7° respectively.The hydrophobic resistance and heat resistance were significant to improve.
Key words:  in-situ polymerization    polytetrafluoroethylene    hydrophobicity    heat resistance
收稿日期:  2018-01-31                出版日期:  2019-06-20      发布日期:  2019-07-05      期的出版日期:  2019-06-20
基金资助: 安徽省2017年度科技计划重点项目(1704a0902018);安徽省高校自然科学研究重点项目(KJ2016A792)资助
通讯作者:  杨建军(1960-),男,教授,博士生导师,从事水基高分子材料研究。   
作者简介:  陈静(1992-),男,硕士研究生,从事水基高分子材料研究。
引用本文:    
陈静, 杨建军, 付立兵, 吴庆云, 吴明元, 张建安, 王雷, 丁朝阳. 原位聚合法制备纳米SiO2/PTFE改性丙烯酸酯复合乳液研究[J]. 化工新型材料, 2019, 47(6): 88-92.
Chen Jing, Yang Jianjun, Fu Libing, Wu Qingyun, Wu MingyuanZhang Jian'an, Wang Lei, Ding Chaoyang. Preparation and property of SiO2/PTFE modified acrylate composite emulsion by in-situ polymerization. New Chemical Materials, 2019, 47(6): 88-92.
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http://www.hgxx.org/CN/  或          http://www.hgxx.org/CN/Y2019/V47/I6/88
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