Gypsum plaster board and preparation and application thereof

A paper-faced gypsum board and gypsum technology, applied in the field of building materials, can solve the problems of difficulty in meeting new application scenarios, poor strength and toughness, damage to the overall coordination and aesthetics of the house, etc., to improve adhesion and strength. and toughness, the effect of improving fire performance

Active Publication Date: 2020-05-15
CHINA NAT BUILDING MATERIALS TECHCAL INNOVATION & RES INST LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Indoor heating in winter mainly relies on fireplaces and radiators, but after installation, the fireplaces and radiators are exposed outside, which destroys the overall coordination and aesthetics of the house
At the same time, due to the characteristics of gypsum raw materials, the strength and toughness of gypsum board are poor, so it is difficult to meet new application scenarios, and it is impossible to develop new building material products based on gypsum board

Method used

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  • Gypsum plaster board and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] This embodiment provides a high-strength, high-toughness, high-thermal-conductivity gypsum board, said gypsum board consists of 100 parts by weight of desulfurized gypsum clinker, 0.5 parts by weight of styrene-butadiene emulsion, and 0.4 parts by weight of carbon nano Tube modified glass fiber, 0.02 parts by weight of sodium lauryl sulfate foaming agent, 0.5 parts by weight of water reducing agent, 0.4 parts by weight of modified cornstarch and 67 parts by weight of water. The high-strength, high-toughness, and high-thermal-conductivity gypsum board of this embodiment is prepared by the following method:

[0069] (1) Stir gypsum clinker, emulsion, nano-particle modified glass fiber, foaming agent, water reducer, modified starch and water evenly to prepare gypsum slurry;

[0070] (2) Pour the gypsum slurry on the face-protecting paper, overlap and stick it firmly to form a wet board;

[0071] (3) After the wet board is solidified, enter the dryer, and pass through the ...

Embodiment 2

[0073] This embodiment provides a high-strength, high-toughness, high-thermal-conductivity gypsum board, said gypsum board consists of 100 parts by weight of natural gypsum clinker, 2 parts by weight of polyvinyl acetate emulsion, 0.7 parts by weight of Nano boron nitride modified glass fiber, 0.04 parts by weight of sodium dodecylbenzenesulfonate foaming agent, 0.7 parts by weight of water reducer, 0.8 parts by weight of modified potato starch and 72 parts by weight of water.

[0074] The preparation method of the high-strength, high-toughness, and high-thermal-conductivity gypsum board of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0076] This embodiment provides a high-strength, high-toughness, high-thermal conductivity gypsum board, said gypsum board consists of 100 parts by weight of desulfurized gypsum clinker, 4 parts by weight of vinyl acetate-ethylene copolymer emulsion, 1 part by weight Parts of graphene nanosheet modified glass fibers, 0.03 parts by weight of sodium dodecylbenzenesulfonate blowing agent, 0.8 parts by weight of water reducing agent, 1 part by weight of modified cornstarch and 76 parts by weight of water.

[0077] The preparation method of the high-strength, high-toughness, and high-thermal-conductivity gypsum board of this embodiment is the same as that of Embodiment 1.

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Abstract

A gypsum plaster board is characterized in that the core board of the gypsum plaster board comprises following raw materials: gypsum, emulsion and nano particle modified glass fibers, and preferably,the raw materials of the gypsum plaster board comprise gypsum, emulsion, nano particle modified glass fibers, a foaming agent, a water reducing agent, modified starch and water. The preparation methodof the gypsum plaster board comprises the following steps: firstly, uniformly stirring gypsum, the emulsion, the nano particle modified glass fibers, the foaming agent, the water reducing agent, themodified starch and water to prepare gypsum slurry; secondly, pouring the slurry on surface protection paper, performing lap joint, firm adhesion and forming to prepare a wet board; finally, after thewet board is solidified, delivering the wet board to a drying machine, and drying the wet board. The provided gypsum plaster board is excellent in heat-conducting property, mechanical property and fire resistance. The longitudinal strength and the transverse strength of the gypsum plaster board with the thickness of 12 mm are improved by 53% and 75% respectively compared with those of a common gypsum plaster board, the heat conductivity coefficient is improved by 300% compared with that of the common gypsum plaster board, and the gypsum plaster board has wide application prospects in heat conduction building materials.

Description

technical field [0001] This article relates to the technical field of building materials, especially a paper-faced gypsum board and its preparation and application. Background technique [0002] Paper-faced gypsum board is a board made of gypsum as the main raw material, mixed with an appropriate amount of admixture, and made of special paper as a protective surface. It has the advantages of light weight, fire prevention, environmental protection, and convenient construction. It is mainly used for indoor partition walls and ceilings. [0003] Indoor heating in winter mainly relies on fireplaces and radiators, but after installation, the fireplaces and radiators are exposed outside, destroying the overall coordination and aesthetics of the house. At the same time, due to the characteristics of gypsum raw materials, the strength and toughness of gypsum board are poor, so it is difficult to meet new application scenarios, and it is impossible to develop new building material p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/10E04F13/077E04F13/074B28B19/00C04B111/40
CPCB28B19/0092C04B28/14C04B28/143C04B28/144C04B38/10C04B2111/40C04B2201/32E04F13/0866E04F2290/023C04B14/42C04B24/26C04B14/026C04B24/16C04B2103/302C04B24/38C04B14/327C04B24/20C04B14/022
Inventor 刘文君陈红霞杨正波张晓菲葛俊巧周全光冉秀云
Owner CHINA NAT BUILDING MATERIALS TECHCAL INNOVATION & RES INST LIMITED
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