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Organosilicon macromolecular composite waterproof gypsum and preparation method thereof

A technology of silicon polymer and water-soluble polymer, applied in the field of gypsum, can solve the problems of complex preparation process and long storage time of silicone resin emulsion, and achieve the effect of simple preparation process, excellent long-term waterproof performance and excellent waterproof performance

Active Publication Date: 2014-08-13
金沙卓为环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silicone resin emulsion has a long storage time and the preparation process is relatively complicated

Method used

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  • Organosilicon macromolecular composite waterproof gypsum and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The raw materials are weighed according to the following composition, and the waterproof gypsum product of the present invention is prepared:

[0031] Desulfurized building gypsum: 100g

[0032] Silane coupling agent A151: 1.0g

[0033] Acetic acid: 0.5g

[0034] Water-soluble starch: 0.7g

[0035] Water: 80g

[0036] The preparation method is as follows:

[0037] Dissolve 0.7g of water-soluble starch in water at 95-100°C to make a starch aqueous solution with a mass fraction of 10%, which is component A; dissolve 0.5g of acetic acid in 50g of water, add 1.0g of silane coupling Agent A151, keep stirring until the solution is clear, it is component B; mix component A, component B and the remaining water, put in 100g of construction gypsum, mix well, stir for 2min, pour into the mold, scrape off the remaining material on the surface, After the gypsum is solidified, it is demolded and dried to obtain the finished product.

Embodiment 2

[0062] Similar to Example 1, the difference is that the silane coupling agent A151 is 0.1 g, the acetic acid is 1 g, and the water-soluble cellulose is 1 g.

Embodiment 3

[0064] Similar to Example 1, the difference is that the silane coupling agent A151 is 2 g, the hydrochloric acid is 0.1 g, and the water-soluble starch is 0.1 g.

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Abstract

The invention discloses organosilicon macromolecular composite waterproof gypsum and a preparation method thereof and relates to gypsum. The invention provides organosilicon macromolecular composite waterproof gypsum having excellent waterproof performance and a preparation method thereof. The organosilicon macromolecular composite waterproof gypsum is composed of the following raw materials according to mass ratio: 100 parts of desulfurated building gypsum, 0.1-3.0 parts of silane coupling agent, 0.1-1.0 part of multi-hydroxyl polymer and 80 parts of water. The preparation method comprises the steps of: preparing the multi-hydroxyl polymer into aqueous solution to obtain an ingredient A; dissolving a catalyst in water, adding the silane coupling agent, and stirring until the solution is clear to obtain an ingredient B; mixing the ingredient A and the ingredient B with the rest of water, adding the desulfurated building gypsum, mixing, injecting the mixture in a mould, demolding after gypsum is solidified, and drying to obtain the organosilicon macromolecular composite waterproof gypsum.

Description

technical field [0001] The invention relates to a gypsum, in particular to an organosilicon polymer composite waterproof gypsum and a preparation method thereof. Background technique [0002] Gypsum products are a building material widely used in construction engineering. Gypsum products are light in weight and fast setting, have strong resistance to fire, noise, electromagnetic radiation, etc., have their unique advantages in energy saving, environmental protection, ecological balance, etc., and are non-toxic, tasteless, and pollution-free in manufacturing and use. , so it is an ideal green building material. However, gypsum building products made from pure building plaster have very low water resistance. With the increase of humidity, the strength of gypsum products decreases sharply and the creep property increases, and it is easy to warp and deform, so its use is limited. In order to expand the application area of ​​gypsum products, the water resistance of gypsum prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B24/40
Inventor 李磊陈明杰
Owner 金沙卓为环保新材料有限公司
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