无溶剂丙烯酸酯-有机硅氧烷/粘土纳米复合涂料的制备和性能  

Preparation and Properties of Solvent-Free Acryalte-Polysiloxane / Organoclay Nanocomposite Coating

作　　者：周琳楠 任强[1] 李坚[1] 汪称意[1] 邓健[1] 方建波[1] 鄢家博 马沛燕 

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164

出　　处：《高分子材料科学与工程》2015年第12期131-136,共6页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51203014);江苏省高校"青蓝工程"资助项目

摘　　要：采用含有烷氧基端基的低分子质量甲基苯基有机硅氧烷树脂为主体,以双官能团丙烯酸酯单体二丙二醇二丙烯酸酯为改性剂,以硅烷偶联剂为固化剂,有机纳米粘土为填料制备了一种新型的无溶剂纳米复合涂料。钛酸酯和对甲苯磺酸对漆膜的交联固化有良好的催化作用,可以使漆膜的表干时间缩短为2.5 h。X射线衍射和透射电子显微镜测试表明,1%的有机粘土可以完全剥离分散于树脂基体中,并明显提高漆膜的冲击强度、拉伸强度和玻璃化转变温度,以及在耐盐水浸泡测试中的防腐性能。A novel solvent-free nanocomposite coating was prepared by using alkoxy-tipped polysiloxane as primary resin,tripropylene glycol diacrylate as modifying agent,3-aminopropyl triethoxysilane as curing agent and organoclay as filler. Titanate and p-toluenesulfonic have good catalyzation drying role in curing process of coating film and can make the coating film be tack-free in 2. 5h. XRD and TEM analysis indicate that organoclay with filling level of 1% can be exfoliated in resin matrix,and so improve the impact resistant,tensile strength,glass transition temperature and anti-corrosion performance in salt solution soaking test of coating materials.

关 键 词：有机硅氧烷 丙烯酸酯 纳米粘土 无溶剂涂料 防腐 

分 类 号：O634.41[理学—高分子化学]