摘要： 为获得高硬度透明复合涂膜，加快其工业应用，在水性条件下，以价格低廉的 γ－（2,3－环氧丙氧基）丙基三甲氧基硅烷（GPTMS）和一水软铝石为主要原料，以硝酸溶液控制 pH，通过硬度测试和红外定量分析，研究了GPTMS/AlOOH透明硬涂膜的制备工艺。结果表明：涂膜的硬度可由Si-O-Si和Si-O-Al含量控制。将质量比为100∶46∶50∶2.8的 GPTMS水解产物、AlOOH、去离子水和硝酸溶液在 80℃反应 2h，得到预聚物，将其在 125℃热固化2.5h，可得到铅笔硬度达 4H的透明涂膜。
关键词:
有机硅氧烷,
一水软铝石,
薄膜,
透明性
Abstract: In order to obtain film with excellent hardness and transparency and promote its industrial application, a GPTMS/AlOOH composite film in water was developed with concerns of environment protection and energy saving, based on y-(2, 3-epoxypropoxyl ) propyltrimethoxyl silane(GPTMS )and boehmite(AlOOH)as main materials and nitric acid solution for pH value control, pencil hardness and FT-IR quantitative analysis. The results show that pencil hardness of GPTMS-AlOOH composite film was con-trolled by the content of Si-O-Si and Al-O-Si. Hydrolysis GPTMS, AlOOH, deionized water and nitric acid solution(the mass ratio were 100: 46: 50: 2. 8)were put together and churned up approximately 2 h under 80℃,then cured 2.5h at 125°C,transparent film with a pencil hardness of 4H was obtained.
Key words:
organoalkoxysilane,
boehmite,
film,
transparency
陈 奎１, 张天云２, 曹秀鸽１, 杨 扬２. GPTMS/AlOOH透明硬涂膜制备[J]. 涂料工业, 2011, 41(8): 9-11.
Chen Kui, Zhang Tianyun, Cao Xiuge, YangYang. The Preparation of Organoalkoxysilane/Boehmite Film[J]. Paint & Coatings Industry, 2011, 41(8): 9-11.