利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104744981A 聚氨酯外墙隔热涂料及其制备方法 无效 - 撤回

聚氨酯外墙隔热涂料及其制备方法
摘要：
一种水溶性聚氨酯外墙隔热涂料及其制备方法，该涂料是包括聚氨酯预聚体、N-羟甲基丙烯酰胺、邻苯二甲酸二丁酯、乙烯基三氯硅烷、钛白粉、甲基硅油、超细碳酸钙、混合溶剂，其制备方法：按重量每公斤N-羟甲基丙烯酰胺加入2公斤的体积浓度50-70%的乙醇溶解，然后在反应釜中与聚氨酯预聚体混合，反应温度80-150℃，反应时间1小时后加入乙烯基三氯硅烷；继续反应2-5小时；然后加入邻苯二甲酸二丁酯；金红石型钛白粉；甲基硅油；超细碳酸钙；混合溶剂，混合均匀即可得到水溶性聚氨酯外墙隔热涂料产品，本发明具有耐化学性强、耐温高、耐候性好、耐沾污性好、光泽度高、涂膜寿命长等特点。
摘要（英）：

The invention relates to a water-soluble polyurethane external-wall thermal-insulation paint and a preparation method thereof. The paint comprises a polyurethane prepolymer, N-hydroxymethyl acrylamide, dibutyl phthalate, vinyl trichlorosilane, titanium white, methyl silicone oil, superfine calcium carbonate and a mixed solvent. The preparation method comprises the following steps: adding 2 kilos of 50-70 vol% ethanol into every kilo of N-hydroxymethyl acrylamide for dissolution, mixing with the polyurethane prepolymer in a reaction kettle, reacting at 80-150 DEG C for 1 hour, and adding vinyl trichlorosilane; continuing reacting for 2-5 hours; and adding the dibutyl phthalate, rutile titanium white, methyl silicone oil, superfine calcium carbonate and mixed solvent, and uniformly mixing to obtain the water-soluble polyurethane external-wall thermal-insulation paint product. The water-soluble polyurethane external-wall thermal-insulation paint has the characteristics of high chemical resistance, high temperature resistance, favorable weather resistance, favorable pollution resistance, high glossiness, long service life of the coated film and the like.

0/0