Coating technology: preparation method of in-situ nano modification of high performance nano coatings

It is suggested that this method is an in-situ nano modification method for high performance nano coatings (1) Preparation of nano powder precursor ★ select metal alkoxide or inorganic acid or organic modifier or their mixture as precursor of nano powder (I), ★ select water or organic solvent or their mixture as diluent (Ⅱ), ★ select inorganic acid or inorganic alkali or organic matter or their mixture as the reaction control agent (Ⅲ), ★ at room temperature, the three are stirred to obtain uniform and transparent nano powder precursor solution (2 Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Coating home news: this method is a high-performance nano coating surface in-situ nano modification method (1) Preparation of nano powder precursor ★ selecting metal alkoxide or inorganic acid or organic modifier or their mixture as precursor of nano powder (I), ★ selecting water or organic solvent or their mixture as diluent (II), ★ selecting inorganic acid or inorganic alkali or organic matter or their mixture as reaction control agent (III), ★ at room temperature, the three are stirred to obtain uniform and transparent nano powder precursor solution (2) Preparation of nano coating At any stage after the dispersion stage of the pigment and filler prepared by conventional coating, the precursor solution of the above nano powder is slowly added in the stirring process at room temperature, and the mixture is continued The corresponding nano powder is synthesized directly on the surface of the pigment and filler particles in situ, which is the agglomeration of them on the surface of the pigment and filler particles and the formation of the corresponding directional arrangement state After the completion of the remaining process of conventional preparation The nano coating with high performance is prepared The amount of forerunner is 0.1% ~ 25%, the temperature is 20 ~ 45 ℃, and the time of continuous stirring is 0.1 ~ 12h For example, the precursor composition of nano powder (molar composition): TEOS 2 ± 0.1, r-glycidyl ether propyltrimethoxysilane 8 ± 0.2, ethanol 9 ± 1, deionized water 16 ± 1 Adjust the temperature of the mixture to 25-30 ℃, stir it for 60-5 minutes, and obtain uniform and transparent precursor After the color mixing stage of the common waterborne acrylic exterior wall elastic coating is completed, 3.0% nano powder precursor solution is added slowly while stirring at 25 ℃, and continues to stir for 90 minutes Finally, the thickening process and homogenization process of the coating are carried out to obtain the high-performance nano elastic coating In this kind of nano coating, 1% hydrophobic silica nano powder was introduced These nano powders agglomerate on the surface of the pigments and fillers in the acrylic coating, and obtain a certain orientation distribution, that is, the hydrophobic gene extends outward along the radial direction, which can obtain significant nano modification effect Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,