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A kind of method of making gypsum board

A gypsum board and gypsum technology, applied in the field of inorganic building material preparation, can solve problems such as uneven distribution and difficulty in adding glass fibers, and achieve the effects of achieving uniform distribution, improving fire stability, and improving production efficiency

Active Publication Date: 2021-10-08
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a method for preparing a fireproof gypsum board that can evenly distribute glass fibers throughout the entire gypsum board, which solves the existing problems of difficulty in adding glass fibers and uneven distribution when using glass fibers to prepare gypsum boards

Method used

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  • A kind of method of making gypsum board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add water to ordinary glass fiber to make a water dispersion system with a glass fiber content of 0.5% by weight; weigh 100 parts by weight of desulfurized gypsum, 0.2 parts by weight of binder, and 0.03 parts by weight of foaming agent and add them to a mixer and mix them into gypsum slurry; At the outlet of the gypsum slurry, spray 60 parts by weight of a water dispersion system containing glass fibers (that is, 0.3 parts by weight of glass fiber) into the gypsum slurry through a flow meter connected to a pressure pump; , made of plasterboard.

Embodiment 2

[0028] adding water to the starch-type glass fiber to make a water dispersion system with a glass fiber content of 0.5% by weight; weighing 100 parts by weight of desulfurized gypsum, 0.2 parts by weight of binder, and 0.03 parts by weight of foaming agent, adding them to a mixer and mixing them into gypsum slurry; At the outlet of the gypsum slurry, 60 parts by weight of the water dispersion system containing glass fibers (that is, 0.3 parts by weight of the glass fiber) is sprayed into the gypsum slurry by a flowmeter connected to the pressure pump; Dry to make plasterboard.

Embodiment 3

[0030] Take 546 type glass fibers and add water to make a water dispersion system with a glass fiber content of 0.5% by weight; weigh 100 parts by weight of desulfurized gypsum, 0.2 parts by weight of binder, and 0.03 parts by weight of foaming agent, add them to a mixer and mix them into a gypsum slurry; At the gypsum slurry outlet, 60 parts by weight of the water dispersion system containing glass fiber (that is, 0.3 parts by weight of glass fiber) is sprayed into the gypsum slurry by a flowmeter connected with the screw pump; Dry to make plasterboard.

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Abstract

A method for preparing gypsum boards, the method comprising the steps of: dispersing glass fibers in water to obtain a water dispersion system containing glass fibers; It is sprayed into the gypsum slurry through a flow meter connected with a pump; the upper and lower surfaces are attached with face paper, shaped and dried to obtain the gypsum board. The preparation method of the present application can make the glass fiber evenly distributed in the gypsum board, which improves the fire stability of the gypsum board, and avoids the equipment failure caused by the glass fiber winding the stirring rod in the mixer, and improves the gypsum board. Productivity.

Description

technical field [0001] The present application relates to but not limited to the field of preparation of inorganic building materials, in particular to but not limited to a preparation method of a fireproof gypsum board containing glass fibers. Background technique [0002] Paper-faced gypsum board is a light-weight board formed by using gypsum slurry as the core and using paper as the protective surface on both sides. Paper-faced gypsum board is light in texture, high in strength, fireproof, mothproof, and easy to process. Ordinary paper-faced gypsum boards are used for interior walls, partition walls and suspended ceilings. The water-resistant paper-faced gypsum board that has been fire-resistant can be used on the walls of rooms with high humidity, such as lining boards for tiles, metal plates, and plastic-faced brick walls in toilets, kitchens, and bathrooms. [0003] In order to improve the strength and fire stability of gypsum boards, the method of adding reinforcing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B28/00
CPCC04B28/00C04B2201/20C04B2201/50C04B14/42C04B18/064C04B38/10C04B38/0067
Inventor 朱清玮滕伟广王永生王鹏起
Owner BEIJING NEW BUILDING MATERIALS PLC