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Heat-preservation and heat-insulation gypsum plaster board and preparation method thereof

A paper-faced gypsum board, thermal insulation technology, applied in the field of building materials, can solve the problems of easy flying of aerogel, uneven dispersion of gypsum board, etc., and achieve excellent fire stability, good adhesion performance and strength mechanics, The effect of excellent thermal insulation

Active Publication Date: 2022-04-05
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This application provides a thermal insulation paper-faced gypsum board and its preparation method. The preparation method is simple, overcomes the problems of airgel being easy to fly and uneven dispersion in the gypsum board, and not only improves the thermal insulation of the gypsum board. performance, and has no adverse effect on the bonding performance and mechanical strength of gypsum board

Method used

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  • Heat-preservation and heat-insulation gypsum plaster board and preparation method thereof
  • Heat-preservation and heat-insulation gypsum plaster board and preparation method thereof

Examples

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preparation example Construction

[0040] The embodiment of the present application also provides a method for preparing the thermal insulation paper-faced gypsum board as described above, the preparation method comprising:

[0041] Step 1, weighing gypsum clinker, water, airgel paste, ethylene-vinyl acetate copolymer emulsion, vitrified microspheres, glass fiber, retarder and starch by parts by weight;

[0042] Step 2, uniformly mixing vitrified microbeads, a part of starch, ethylene-vinyl acetate copolymer emulsion and airgel paste to obtain an airgel paste dispersion;

[0043]Step 3, mixing the gypsum clinker, remaining starch, glass fiber and retarder evenly;

[0044] Step 4, adding water to the mixture obtained in step 3, stirring evenly to make gypsum slurry;

[0045] Step 5. Add the airgel paste dispersion obtained in step 2 to the gypsum slurry obtained in step 4, and stir to obtain slurry;

[0046] Step 6, attaching and lowering protective paper on the slurry obtained in step 5, molding and drying to...

Embodiment 1

[0052] The gypsum board of the present embodiment is prepared by the following method:

[0053] Step 1. Weigh 100 parts by weight of desulfurized gypsum clinker, 44 parts by weight of water, and 2.67 parts by weight of airgel paste (equivalent to adding 0.8 parts by weight of airgel, that is, the content of the active ingredient airgel in the airgel paste 0.8 parts by weight), 19 parts by weight of polyvinyl acetate-ethylene emulsion, 2 parts by weight of vitrified microbeads, 0.08 parts by weight of glass fiber, 0.28 parts by weight of retarder, and 0.3 parts by weight of modified starch;

[0054] Step 2, fully mixing vitrified microbeads, 20% by weight of starch, polyvinyl acetate-ethylene emulsion and airgel paste to form a uniformly dispersed state to obtain an airgel paste dispersion;

[0055] Step 3, mixing the desulfurized gypsum clinker, 80% by weight of starch, glass fiber and retarder evenly;

[0056] Step 4, add water to the mixture prepared in step 3, and stir eve...

Embodiment 2

[0061] The gypsum board of the present embodiment is prepared by the following method:

[0062] Step 1. Weigh 100 parts by weight of desulfurized gypsum clinker, 50 parts by weight of water, and 15 parts by weight of airgel paste (equivalent to adding 4.5 parts by weight of airgel, that is, the content of the active ingredient airgel in the airgel paste The addition amount of meter is 4.5 weight parts), polyvinyl acetate-ethylene emulsion 12 weight parts, vitrified microbead 0.5 weight part, glass fiber 0.12 weight part, retarder 0.8 weight part, modified starch 0.5 weight part;

[0063] Step 2 to step 7 are the same as in Example 1.

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Abstract

The invention relates to a heat-preservation and heat-insulation gypsum plaster board and a preparation method thereof, the gypsum plaster board is prepared from the following raw materials: gypsum clinker, water, aerogel paste, ethylene-vinyl acetate copolymer emulsion, glass beads, glass fibers, a retarder and starch, and the addition amount of each raw material is the same as that in the specification; wherein the aerogel paste is aerogel paste for a water-based building material. The gypsum plaster board provided by the invention has excellent thermal insulation performance and fire stability, and has good bonding performance and strength mechanics.

Description

technical field [0001] The present application relates to but not limited to the field of building materials, in particular to a thermal insulation paper-faced gypsum board and a preparation method thereof. Background technique [0002] Under the background that the country vigorously advocates building energy conservation, it is particularly important to develop the thermal insulation and energy-saving performance of indoor building materials. In recent years, fires have occurred frequently in the field of building thermal insulation and energy saving, revealing the application defects of organic thermal insulation materials widely used in the market. It is an inevitable development trend of the industry to improve the fire protection rating of building materials and promote fire and heat insulation materials with low thermal conductivity. [0003] At present, gypsum board, as the first choice material for interior decoration, has been widely used in shopping malls, hospit...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B38/08C04B111/28
Inventor 尹东杰王莹武发德谭丹君
Owner BEIJING NEW BUILDING MATERIALS PLC