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Process of modifying calcium silicate plate with water-base epoxy resin

A technology of water-based epoxy resin and calcium silicate board, which is applied in the field of modified calcium silicate board, can solve the problems of poor impact resistance, fragility, and decreased flexural strength, and achieve good impact resistance and strong heat insulation , high-strength effect

Inactive Publication Date: 2007-11-07
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although calcium silicate board has many advantages, it also has disadvantages: (1) Calcium silicate board is not waterproof and has a high water absorption rate
The water absorption rate of ordinary calcium silicate board is as high as about 30%, and the flexural strength of the saturated calcium silicate board is reduced by about 50%.
In addition, for thermal insulation materials, once they absorb water, their thermal conductivity will rise sharply, which will bring great troubles to the storage, packaging, transportation and on-site stacking of products, and also limit their application range.
(2) The calcium silicate board is brittle, has poor impact resistance, and is fragile when dropped from a higher place

Method used

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  • Process of modifying calcium silicate plate with water-base epoxy resin
  • Process of modifying calcium silicate plate with water-base epoxy resin
  • Process of modifying calcium silicate plate with water-base epoxy resin

Examples

Experimental program
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Embodiment Construction

[0043] 1 How to use water-based epoxy resin and curing agent:

[0044] (1) Before using the water-based epoxy resin emulsion for the first time, place the container containing the water-based epoxy resin emulsion upside down, let it stand for about 10 minutes, and then shake it well to make the water-based epoxy resin emulsion in the container evenly distributed.

[0045] (2) Before using the curing agent for the first time, it is also necessary to shake the container containing the curing agent repeatedly to make the curing agent in the container evenly distributed.

[0046] (3) According to the mixing ratio described in this manual, pour the water-based epoxy resin emulsion and curing agent into the container, mix well, and stir evenly.

[0047] 2 Surface treatment process for finished calcium silicate board

[0048] The invention is an improved calcium silicate board, the main materials are ordinary calcium silicate board, water-based epoxy resin emulsion and curing agent,...

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Abstract

The present invention relates to method of modifying calcium silicate plate with water-base epoxy resin. Water-base epoxy resin emulsion and curing agent are used in modifying calcium silicate plate product or material. The modified material consists of calcium silicate plate product 100 weight portions, water-base epoxy resin emulsion 3-10 weight portions, and curing agent 20-25 wt% of the water-base epoxy resin emulsion. The modified calcium silicate plate has excellent performances, including waterproof performance, shock resistance, compression strength and bending strength, higher than that of common calcium silicate plate, and is suitable for use in building.

Description

technical field [0001] The invention relates to a modified calcium silicate board used in building walls, in particular to a method for modifying a calcium silicate board with water-based epoxy resin Background technique [0002] Calcium silicate board is refined from siliceous raw materials, calcium raw materials and reinforcing fibers through raw material preparation, molding, autoclaving, drying, sanding and other processes. It has excellent performances such as light bulk density, high strength, no fear of fire, good sound insulation, strong heat insulation, no pollution, and easy processing. The product can be drilled, sawed, nailed, planed, and dry construction operations, etc. It is widely used in non-load-bearing partition walls, suspended ceilings, interior wall veneers, and exterior decoration of modern buildings. It is an ideal material for modern buildings. [0003] Although calcium silicate board has many advantages, it also has disadvantages: (1) Calcium silic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/28C04B14/06C04B14/42C04B28/00
Inventor 张荣辉何远航吕惠卿
Owner GUANGDONG UNIV OF TECH
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