Stone-like coating as well as preparation method and application thereof
A technology of real stone varnish and quartz sand, which is applied in the field of real stone varnish and its preparation, can solve the problems of not being able to play a good self-cleaning effect, low photocatalytic efficiency of organic pollutants, poor dispersion stability of titanium dioxide, etc., and achieve excellent self-cleaning performance , Excellent photocatalytic effect, outstanding comprehensive performance
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preparation example 1
[0081] A kind of nano zeolite sol, specifically Y-type nano zeolite sol, the preparation method is as follows:
[0082] (1) Preparation of A solution: 28.2g silica sol (LS-30, solid content is 30%, purchased from Zhejiang Yuda Chemical Co., Ltd.) and 11.46g tetramethylammonium hydroxide reaction bottle are mixed, sealed and placed in Stir at room temperature for 30 minutes to obtain solution A for subsequent use;
[0083] (2) Preparation of solution B: Take 52.3g of tetramethylammonium hydroxide and add it to 76.5g of distilled water, mix well, then add 10.5g of aluminum isopropoxide, and stir the solution in a water bath at 70°C for 15 minutes until it is completely dissolved. After cooling to room temperature, 13.1 g of tetramethylammonium bromide was added and stirred evenly to obtain solution B;
[0084] (3) Add solution A to solution B, and perform aging treatment with magnetic stirring at room temperature for 3 days to obtain an aged sol; seal the aged sol, stir in an o...
preparation example 2
[0086] A titanium dioxide coated modified quartz sand, specifically nano titanium dioxide coated modified quartz sand, the preparation method is as follows:
[0087] (1) Preparation of titanium dioxide sol: prepare with ethanol as a solvent and glacial acetic acid as a chelating agent, the molar ratio of tetrabutyl titanate, ethanol, water, and glacial acetic acid is 1:20:3:2, and the absolute ethanol is divided into two Partial addition, first mix two-thirds of absolute ethanol with tetrabutyl titanate and glacial acetic acid, and stir vigorously for 15 minutes to form solution A; the other third of absolute ethanol is mixed with glacial acetic acid and deionized water Prepare solution B; solution B is added dropwise to solution A at a uniform speed for reaction, and continuously stirred, and a uniform light yellow transparent sol is obtained after dripping, and the obtained light yellow sol is stirred for 30 minutes, and then left at room temperature; after a certain period o...
Embodiment 1
[0098] A real stone paint, comprising the following components in parts by weight: 4 parts of acrylic acid emulsion, 8 parts of silica sol, 3 parts of nano-zeolite sol, 65 parts of modified quartz sand coated with titanium dioxide, 0.1 part of cellulose ether, and 0.2 parts of defoamer share.
[0099] The preparation method of the real stone paint is as follows: mix cellulose ether, silica sol and nano-zeolite sol according to the formula amount, stir and disperse for 10 minutes, slowly add acrylic acid emulsion to it, stir for 5 minutes, finally add a defoamer, mix and disperse evenly, and obtain Base material: mixing and stirring the base material and titanium dioxide-coated modified quartz sand evenly to obtain the real stone paint.
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