Texture coating and preparation method thereof
A textured coating and aggregate technology, applied in the field of coatings, can solve problems such as poor weather resistance, and achieve the effects of good wear resistance, good frost resistance and high strength
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[0028] 3. The preparation process of acid-hydrolyzed hydroxypropyl starch is: adding 13% of the swelling inhibitor relative to the starch mass in deionized water, adding 1.0% of the starch mass of sodium hydroxide, mixing and stirring until dissolved, adding steps (1) The prepared acid-hydrolyzed starch was adjusted to 35% starch milk, stirred and alkalized for 40 minutes, heated to 42°C, added propylene oxide accounting for 5% of the starch mass, etherified for 14 hours, and added 10% hydrochloric acid to adjust the pH to 7.0, after centrifugal dehydration, drying and sieving, acid hydrolyzed hydroxypropyl starch is obtained;
[0029] 4. The preparation process of acid hydrolyzed starch used in the preparation process of acid hydrolyzed carboxymethyl starch and acid hydrolyzed hydroxypropyl starch is: add HCl solution with a mass percentage concentration of 0.6% to starch to prepare a starch with a concentration of 38% The milk is heated to a temperature of 50°C for an acidolysi...
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[0035] Example 1. Aggregate (red) for preparing texture coating:
[0036] The amount of aggregate raw materials is as follows: cement 50 kg, lime 10 kg, gypsum 15 kg, fine sand (100 mesh) 10 kg, biomass binder 20 kg, red water-based color paste 8 kg, and demineralized water 8 kg.
[0037] Preparation method of aggregate:
[0038] a) According to the mass parts, mix the water-based color paste and the biomass binder uniformly to obtain the mixed liquid, which is ready for use;
[0039] b) Add cement, lime, gypsum, and fine sand into the mixer according to the mass parts, and stir the uniform mixture;
[0040] c) Add the mixture obtained in step b to the aqueous color paste and binder mixture prepared in step a, and stir it evenly; d) Use a rotary granulator to granulate the material obtained in step c to prepare a particle size of 2.5mm Granules are dried, sized and sieved to obtain aggregates.
Example Embodiment
[0041] Example 2. Preparation of aggregate (yellow) for texture coating
[0042] The amount of aggregate raw materials is as follows: cement 50 kg, lime 15 kg, gypsum 10 kg, fine sand (100 mesh) 5 kg, biomass binder 20 kg, yellow water-based color paste 5 kg, and softened water 10 kg.
[0043] Preparation method of aggregate:
[0044] a) According to the mass parts, mix the water-based color paste and the biomass binder uniformly to obtain the mixed liquid, which is ready for use;
[0045] b) Add cement, lime, gypsum, and fine sand into the mixer according to the mass parts, and stir the uniform mixture;
[0046] c) Add the mixture obtained in step b to the aqueous color paste and binder mixture prepared in step a, and stir it evenly; d) granulate the material obtained in step c with a rotary granulator to prepare a particle size of 0.2mm Granules are dried, sized and sieved to obtain aggregates.
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