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A high-strength plastic water-resistant gypsum decorative material and its preparation method

A decorative material and high-strength gypsum technology, applied in the field of gypsum decorative materials, can solve the problems of inconsistent shrinkage or expansion stress of gypsum decorative materials, and achieve the effects of reducing natural drying shrinkage, no powder falling, and small shrinkage

Active Publication Date: 2022-05-27
苏州大乘环保新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem of inconsistent shrinkage or expansion stress of gypsum decorative materials, the application provides a high-strength plastic water-resistant gypsum decorative material and its preparation method

Method used

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  • A high-strength plastic water-resistant gypsum decorative material and its preparation method
  • A high-strength plastic water-resistant gypsum decorative material and its preparation method
  • A high-strength plastic water-resistant gypsum decorative material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiments 1-21 provide a high-strength plastic water-resistant gypsum decorative material, which is described below by taking Embodiment 1 as an example.

[0042] The high-strength plastic water-resistant gypsum decorative material provided by embodiment 1, its preparation steps are:

[0043] Mix 40g beta-high-strength gypsum, 10g ground calcium carbonate, 5g vitrified microbeads, 0.1g fumed silica, and 0.5g magnesium aluminum silicate, and stir to obtain a first mixture;

[0044] To the first mixture was added 0.5g of hydrophobic dispersible polymer powder, 0.05g of cream dispersant, 0.1g of hydroxypropyl methylcellulose ether, 0.05g of water repellent, 0.05g of water-retaining thickener and 0.05g g Gypsum retarder, mix evenly to obtain high-strength plastic water-resistant gypsum decorative material;

[0045] Wherein, the model of the β-high-strength gypsum is DLJ-03;

[0046] The model of the ground calcium carbonate is JS-1250 (D50 particle size is 2 μm);

[00...

Embodiment 2-5

[0054] Examples 2-5 are the same as Example 1, except that the quality of the raw materials for preparing the high-strength plastic water-resistant gypsum decorative material is different, as shown in Table 2 for details.

[0055] Table 2

[0056] component Example 1 Example 2 Example 3 Example 4 Example 5 β-High Strength Gypsum 40g 60g 50g 50g 50g ground calcium carbonate 10g 30g 20g 20g 20g Vitrified beads 5g 15g 10g 10g 10g Fumed silica 0.1g 0.5g 0.3g 0.3g 0.3g Magnesium Aluminum Silicate 0.5g 1g 0.8g 0g 0.8g Hydrophobic dispersible polymer powder 0.5g 1.5g 1g 1g 1g Cream dispersant 0.05g 0.1g 0.08g 0.08g 0.08g Hydroxypropyl methylcellulose ether 0.1g 0.2g 0.15g 0.15g 0.1g water repellent 0.05g 0.1g 0.08g 0.08g 0.08g water retention thickener 0.05g 0.1g 0.08g 0.08g 0.05g Gypsum retarder 0.05g 0.13g 0.09g 0.09g 0.09g

Embodiment 6

[0057] Embodiment 6, with embodiment 3, differs only in that: the trade mark of described hydrophobic redispersible latex powder is by RE 5044N is replaced by 8031H.

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Abstract

The application relates to gypsum decorative materials, in particular to a high-strength plastic water-resistant gypsum decorative material and a preparation method thereof. In parts by weight, the raw materials for preparing the high-strength plastic water-resistant gypsum decorative material include: 40-60 parts of high-strength gypsum, 10-30 parts of heavy calcium carbonate, 5-15 parts of vitrified microbeads, 0.05-0.1 part of water-repellent agent, Water-retaining thickener 0.05-0.1 part, hydrophobic redispersible latex powder 0.5-1.5 part, gypsum retarder 0.05-0.13 part, cream dispersant 0.05-0.1 part, fumed silica 0.1-0.5 part, hydroxypropyl 0.1-0.2 parts of methyl cellulose ether; the average particle diameter of the vitrified microspheres is 70-120 mesh. The high-strength plastic water-resistant gypsum decorative material provided by this application has small shrinkage, adjustable opening time for construction, high thixotropy, good adhesion, good water resistance, no foaming, no cracking, no powder falling after immersion, and high strength. .

Description

technical field [0001] The application relates to gypsum decorative materials, in particular to a high-strength plastic water-resistant gypsum decorative material and a preparation method thereof. Background technique [0002] Gypsum is one of the three major cementitious materials in the world. It is an air-hardening cementitious material. As a abundant and ubiquitous resource, it has a long history of use. However, compared with cement, gypsum is currently used in the construction field. Use less. Gypsum products are very good decorative materials. Gypsum and its products have the characteristics of light weight, high strength, fire prevention, heat insulation, sound absorption, full shape, clear lines, smooth and delicate surface, and good decorative effect. One of the commonly used decorative materials, gypsum decorative products are mainly used for gypsum board and art decorative gypsum. The main feature of gypsum is that it will not crack, it is a micro-expansion, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B14/24C04B14/28C04B22/08C04B24/42C04B111/27
CPCC04B28/14C04B14/28C04B14/24C04B24/42C04B22/08C04B2111/27C04B2201/50C04B2103/65C04B24/2641C04B2103/0057C04B2103/22C04B2103/408C04B14/06C04B24/383
Inventor 张福恒张尊杰单秀军张越
Owner 苏州大乘环保新材有限公司
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