Preparation method of multi-fiber-reinforced gypsum-based composite material

A composite material and gypsum-based technology, applied in the field of preparation of gypsum-based composite materials, can solve problems such as poor flexural strength and tensile strength, and achieve the effects of improving performance, improving interfacial bonding strength, and enhancing the degree of interfacial bonding

Inactive Publication Date: 2018-04-06
泰山石膏(铜陵)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the one hand, it has higher compressive strength, but its flexural strength and tensile strength are poor
Limitations of these

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] A method for preparing a multi-fiber reinforced gypsum-based composite material, characterized in that the preparation method of the gypsum-based composite material is as follows:

[0024] Pour 90 parts of gypsum powder, surface-treated glass fiber, and pre-treated carbon fiber into a stirring pot and stir for 15 seconds to obtain a dry mix; pour the modified wollastonite fiber into water, stir evenly, and then pour into the mixed dry mix. Then add emulsified paraffin emulsion, stir for 50s, pour the mixture into the mold, demould after 12h, and cure for 2d at room temperature to obtain a multi-fiber-reinforced gypsum-based composite material.

[0025] Among them, (1) the surface modification operation of glass fiber is as follows:

[0026] Treat one glass fiber with a length of 15mm at 345-355°C for 15s, put it into soapy water and ultrasonically clean it for 6min, then wash it with distilled water, dry it, and then put it in 0.4mol / L H 2 SO 4 Soak in the solution fo...

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PUM

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Abstract

The invention discloses a preparation method of a multi-fiber-reinforced gypsum-based composite material. The preparation method is characterized in that the gypsum-based composite material is produced with dry-method-modified wollastonite fibers, surface-modified glass fibers and pre-treated carbon fibers as reinforcing materials, wherein the wollastonite fibers are subjected to dry method modification with stearic acid, the glass fibers are subjected to thermo-treatment and acid-treatment and then treatment with a coupling agent, and the carbon fibers are electrolyzed in an electrolyte. Gypsum powder is dry-mixed with the surface-modified glass fibers and pre-treated carbon fibers; then the wollastonite fibers are uniformly mixed with water; the dry mixture then is added to and doped with the wollastonite fibers and water; finally emulsified paraffin emulsion is added with uniform stirring, and then the mixture is injected into a mold to prepare the multi-fiber-reinforced gypsum-based composite material.

Description

technical field [0001] The invention relates to the field of gypsum boards, in particular to a preparation method of a multi-fiber reinforced gypsum-based composite material. Background technique [0002] As one of the three major gel materials, gypsum is processed into gypsum gel, gypsum building products, etc. [0003] Materials have been widely used in the fields of industry, construction, and medical materials. Although its mechanical properties [0004] On the one hand, it has higher compressive strength, but its flexural strength and tensile strength are poor. Limitations of these [0005] In order to improve the defects of gypsum in this aspect, the application field of gypsum materials is usually used to add fibers [0006] Enhance the mechanical properties of gypsum. Contents of the invention [0007] The technical problem mainly solved by the present invention is to provide a method for preparing a multi-fiber reinforced gypsum-based composite material. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/02C04B20/04C04B20/10
CPCC04B20/023C04B20/04C04B20/1025C04B28/14C04B14/42C04B14/386C04B14/465C04B24/36C04B20/107C04B20/026
Inventor 宋庆海康志国苏华刘志国
Owner 泰山石膏(铜陵)有限公司
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