Page 195 - 《精细化工》2021年第6期

第 38 卷第 6 期 精 细 化 工 Vol.38, No.6
202 1 年 6 月 FINE CHEMICALS June 2021

丙烯酸系列化学品
羟基硅油改性丙烯酸树脂水分散体的制备与性能

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赵晓圳，麦 颖，张志敏，王 锋，胡建青，涂伟萍
（华南理工大学 化学与化工学院，广东 广州 510630）

摘要：以羟基硅油（PDMS-OH）、甲基丙烯酸-2-羟丙酯（HPMA）、异佛尔酮二异氰酸酯（IPDI）合成了含硅丙
烯酸酯预聚体（PDMS-g-HPMA），PDMS-g-HPMA 与丙烯酸酯单体在丙二醇甲醚醋酸酯（PMA）中，以偶氮二
异丁腈（AIBN）为引发剂，合成了含硅改性丙烯酸树脂。用 N,N-二甲基乙醇胺中和含硅改性丙烯酸树脂，加水
乳化后制备了含硅改性丙烯酸树脂水分散体。采用 FTIR、XPS、TGA、AFM、SEM 等对水分散体和漆膜进行
结构表征，测试了水分散体粒径、储存稳定性和漆膜综合性能。当 PDMS-g-HPMA 含量为聚合单体总质量的 4%
时，树脂水分散体的粒径为 208.57 nm，且分布均匀，储存稳定性好；漆膜表面致密、透明，硬度为 H，附着力
1 级，对水接触角达到 100.5°，有良好的耐水耐酸性；漆膜的拉伸强度达到 15.6 MPa，断裂伸长率为 356%；漆
膜失重率 10%时的热分解温度可达到 302.4 ℃。漆膜的力学性能和热稳定性能均有所提升。
关键词：羟基硅油；丙烯酸树脂；水分散体；耐水耐酸；丙烯酸系列化学品
中图分类号：TQ630.7 文献标识码：A 文章编号：1003-5214 (2021) 06-1257-07

Preparation and properties of hydroxyl-terminated polydimethysiloxane
modified acrylic resin aqueous dispersions

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ZHAO Xiaozhen, MAI Ying, ZHANG Zhimin, WANG Feng, HU Jianqing, TU Weiping
（School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510630, Guangdong,
China）

Abstract: Silicone-containing acrylate pre-polymer (PDMS-g-HPMA) was prepared from hydroxyl-terminated
polydimethysiloxane (PDMS-OH), 2-hydroxypropyl methacrylate (HPMA), 3-isocyanatomethyl-3,5,5-
trimerhylcyclohexy isocyanate (IPDI). Then, a series of silicone-containing modified acrylic resins with
different content of PDMS-g-HPMA were prepared with 2-acetoxy-1-methoxypropane (PMA) as solvent
and 2,2-azobis (2-methylpropionitrile) (AIBN) as initiator. Subsequently, the silica-containing modified
acrylic resins were neutralized with N,N-dimethylethanolamine and emulsified with water to prepare the
aqueous dispersions of silica-containing modified acrylic resins. The dispersions and coatings were
characterized by FTIR, XPS, TGA, AFM and SEM. The particle size and storage stability of the dispersions
and comprehensive properties of the coatings were tested. The results showed that when PDMS-g-HPMA
content was 4% (based on the total mass of silicone-containing modified acrylic resin, the same below), the
prepared dispersion had even distribution with particle size of 208.57 nm and good storage stability. The
prepared coating had dense and transparent surface and exhibited good properties. The hardness was H,
adhesion was grade 1 and water contact angle was 100.5°. Moreover, it had excellent water and acid
resistance. And the tensile strength of the coating was 15.6 MPa and elongation at break reached 356%. The
temperature at which the mass loss is 10% of the coating reached 302.4 ℃. The mechanical properties and
thermal stability of the coating had been improved.
Key words: hydroxyl-terminated polydimethysiloxane; acrylate resin; aqueous dispersion; water and acid
resistance; acrylic series chemicals

收稿日期：2020-12-23; 定用日期：2021-02-01; DOI: 10.13550/j.jxhg.20201219
基金项目：广东省自然科学基金（2015A030313207）；广东省公益研究与能力建设项目（2015A010105004, 2015A010105023）；广东
省绿色化学产品技术重点实验室开放基金项目（GC201601）
作者简介：赵晓圳（1995—），男，硕士生，E-mail：919429384@qq.com。联系人：涂伟萍（1956—），男，教授，博士生导师，E-mail：
cewptu@scut.edu.cn。