91拍拍,亚洲毛片a,最新91网址,97超频在线观看,激情视频久久,精品视频九九,午夜激情国产

lykehanrectina@163.com
0086+15965450121

Coating industry

Addtime:2021-10-06 12:50:48 Click:768

Mainly using organic modified silica sol

未標(biāo)題-1.jpg



        The silica sol particles are fine, and the silica during gel precipitation has high activity, which can form new silicate inorganic polymer compounds with certain inorganic salts and metal oxides, forming a very hard film; The small particles have a strong penetration force on the substrate, and can penetrate into the interior of the substrate through capillary action. They can react with the alkaline substance Ca (OH) z in the substrate to generate calcium silicate, making the coating film have strong adhesion.

        The enhancement of adhesion is a comprehensive effect of the penetration and hardening bonding of silica sol, which is the result of mechanical bite and chemical bonding. Therefore, it has better surface adhesion adhesion than general coatings. The silica sol is mixed with organic polymer to evenly distribute the organic polymer in the gaps of the silicon oxygen silicon inorganic coating, shielding the remaining hydrophilic groups in the inorganic coating. When the coating is subjected to cold and hot alternation, the contraction of the coating is buffered, and the coating has a certain degree of elasticity. The formed coating combines the characteristics of both inorganic and organic coatings, making up for the shortcomings of both.

        After the formation of silica sol film, a network structure of silica oxide is formed, which is not afraid of acid or alkali and improves the performance of the coating. The composite wall coating prepared with silica sol as the main film-forming material, synthetic lotion (such as styrene acrylic lotion, vinyl acetate resin lotion, etc.) as the auxiliary film-forming material, pigment, filler, and JJH-J addition has unique water resistance, fire resistance, scrub resistance, and pollution resistance. The casting coating prepared by mixing silica sol and refractory powder can effectively prevent molten steel adhesion and plate wear during the casting of steel ingots. Most high-end latex paints, such as Nippon Paint, now contain silica sol.

        In addition, silica sol is widely used in the preparation of thermal conductive coatings for metal surface layers, water resistant porcelain like coatings, wall bead steel coatings, energy-saving and anti-corrosion high-temperature ceramic coatings, metal insulation coatings, foaming fireproof coatings, and so on.


连江县| 清水县| 玉溪市| 会泽县| 濮阳市| 扎兰屯市| 岳普湖县| 滁州市| 灌南县| 南阳市| 通州市| 克山县| 汉阴县| 莱西市| 阿瓦提县| 盐池县| 大方县| 嵊州市| 桂平市| 庄浪县| 灵宝市| 华宁县| 惠水县| 泊头市| 曲沃县| 金昌市| 敦煌市| 西贡区| 平阳县| 永兴县| 睢宁县| 杭州市| 方正县| 竹北市| 安丘市| 大足县| 天峨县| 诸城市| 高平市| 济阳县| 开江县|