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Lightening gypsum suspended ceiling

A ceiling and gypsum technology, applied in the field of building decoration materials, can solve the problems of small reduction ratio, complicated process operation, heavy bulk density, etc., and achieve the effects of excellent fire resistance and water resistance, simple process operation and low bulk density.

Inactive Publication Date: 2007-08-08
云南天之豪装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large bulk density of the product, it will not only increase the consumption of raw materials and manpower, but also increase the self-weight of the building, which affects the service life of the building to a certain extent. Therefore, in today's ceiling industry, people have always favored "light and compact". , New" ceiling material
At present, foaming or filling such as plastic foam particles, expanded perlite and other light aggregates or a combination of the two methods are generally used at home and abroad to reduce the bulk density of gypsum products, and the bulk density of the produced gypsum products can be reduced to 0.7-0.8g / cm 3 Compared with the original technology, the bulk density of its products has been reduced to a certain extent, but the reduction ratio is not large. At the same time, there is a problem of unsightly appearance of the product. Although some adopt the secondary molding process, the process operation is complicated, so subject to certain limitations in application
[0003] Through literature search, there is no public report identical with the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of modifier: Add 15 grams of silica sol, 5 grams of sodium fluoride, 4 grams of aluminum potassium sulfate, 7 grams of potassium dichromate, and 0.5 grams of tributyl phosphate into 100 grams of water, manually or mechanically Stir to dissolve and let stand for 2 hours;

[0023] (2) In the aqueous solution containing 5-10% polyvinyl alcohol, add construction gypsum, light calcium carbonate, modifier, commercially available silicone water repellent whose main component is sodium methyl siliconate, commercially available low-alkali Glass fiber, stirred evenly to form gypsum slurry; the weight percentage of its components is: building gypsum 50%, light calcium carbonate 15%, modifier 1.5%, and the main component of commercially available organic silicon is sodium methyl siliconate Waterproofing agent 2%, the rest is aqueous solution containing 10% polyvinyl alcohol.

[0024] (3) Pour the prepared gypsum slurry into the mold, spread it evenly with an iron p...

Embodiment 2

[0032] Basically with embodiment 1. The differences are:

[0033] (1) Preparation of modifier: Add 20 grams of silica sol, 7 grams of sodium fluoride, 6 grams of aluminum potassium sulfate, 9 grams of potassium dichromate, and 1 gram of tributyl phosphate into 100 grams of water, manually or mechanically Stir to dissolve and let stand for 3 hours;

[0034] (2) In the aqueous solution containing 5-10% polyvinyl alcohol, add construction gypsum, light magnesium carbonate, modifier, commercially available silicone waterproofing agent whose main component is potassium methyl siliconate, commercially available alkali-free Glass fiber, stirred evenly to form gypsum slurry; the weight percentage of its components is: 70% of building gypsum, 8% of light calcium carbonate, 0.5% of modifier, and the main component of commercially available organic silicon is potassium methyl siliconate Waterproofing agent 1%, the rest is aqueous solution containing 5% polyvinyl alcohol.

[0035] (3) ...

Embodiment 3

[0041] Basically with embodiment 1. The differences are:

[0042] (1) Preparation of modifier: Add 18 grams of silica sol, 6 grams of sodium fluoride, 5 grams of aluminum potassium sulfate, 8 grams of potassium dichromate, and 0.7 grams of tributyl phosphate in 100 grams of water, artificially or Stir mechanically to make it dissolve and let it stand for 2.5 hours;

[0043] (2) Add building gypsum, white carbon black, modifiers, commercially available silicone water repellents whose main components are potassium methyl siliconate, and commercially available alkali-free glass in an aqueous solution containing 5-10% polyvinyl alcohol Fiber, stirred evenly to form gypsum slurry; the weight percentage of its components is: 70% of building gypsum, 10% of white carbon black, 1% of modifier, and the main component of commercially available organic silicon waterproofing agent is potassium methyl siliconate 1.5%, and the rest is an aqueous solution containing 8% polyvinyl alcohol.

...

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PUM

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Abstract

The invention discloses a light-quality plaster ceiling in the architectural decorative material domain, which comprises the following parts: 50-70% architectural plaster, 8-15% light filler, 0.5-1.5% modifier, 1-2% waterproofing agent and 5-10% polyvinyl alcohol solution, wherein the lightweight fill is one or two or three of light calcium carbonate or lightweight magnesium carbonate or white carbon black according to random rate; the modifier is composed of 100g water, 15-20g silicasol, 5-7g sodium fluoride, 4-6g aluminum potassium sulfate, 7-9g potassium bichromate and 0.5-1g tributyl phosphate; the waterproofing agent is organic silicon waterproofing agent of sodium silanol methyl or potassium silanol methyl; the glass fiber is low-alkaline or non-alkaline glass fiber.

Description

Technical field: [0001] The invention relates to a lightweight gypsum suspended ceiling, which belongs to the field of building decoration materials. Background technique: [0002] As we all know, the fire resistance, moisture resistance and heat preservation of suspended ceiling materials are directly related to the safety of buildings. The decorative gypsum board is widely used for its good thermal insulation and fire resistance. However, although the gypsum powder used in the production of decorative gypsum boards currently has different water-to-plaster ratios, the bulk density of the products generally reaches 0.9-1.0g / cm 3 . Due to the large bulk density of the product, it will not only increase the consumption of raw materials and manpower, but also increase the self-weight of the building, which affects the service life of the building to a certain extent. Therefore, in today's ceiling industry, people have always favored "light and compact". , New" ceiling materi...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B14/42C04B24/26E04F13/00C04B14/26C04B14/28C04B22/08C04B22/12C04B22/14C04B14/44
CPCC04B2111/00603C04B2111/28C04B2111/27C04B2111/40C04B28/14
Inventor 王彦伟童西威
Owner 云南天之豪装饰材料有限公司
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