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Magnesite cementing material additive and use method thereof

A technology of cementitious material and admixture, which is applied in the field of modified admixtures to enhance various mechanical properties of magnesite cementitious materials, can solve the problem that the mechanical properties of magnesite materials such as tensile strength, impact strength, and compressive strength are not Systematic research, limiting the application scope of magnesite products, etc., to achieve the effect of increasing elasticity and strength, enhancing bonding force, and improving compactness

Inactive Publication Date: 2014-03-19
HUNAN CHEM VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Above-mentioned these documents obviously have certain relation with the admixture of magnesite cementitious material, but all there are some problems, although have solved the inherent drawback of magnesite product, how to effectively improve the mechanical property of magnesite material such as tensile strength, There is no systematic research on impact strength, compressive strength, etc., which greatly limits the scope of application of magnesite products

Method used

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  • Magnesite cementing material additive and use method thereof
  • Magnesite cementing material additive and use method thereof

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Effect test

Embodiment 1

[0020] An admixture capable of enhancing the mechanical properties of magnesite cementitious materials, using nano-titanium dioxide, polyurethane, sodium alkylbenzene sulfonate, and urea-formaldehyde resin as raw materials, and the weight percentages of each raw material in the total weight are respectively: Nano-titanium dioxide 25%, urea-formaldehyde resin 30%, sodium alkylbenzene sulfonate 25%, polyurethane 20%; the above-mentioned various raw materials (both solid powder) are measured and mixed according to the percentage and evenly packed into bags to form the present invention An admixture for enhancing the mechanical properties of magnesite cementitious materials.

Embodiment 2

[0022] An admixture capable of enhancing the mechanical properties of magnesite cementitious materials, using nano-titanium dioxide, polyurethane, sodium alkylbenzene sulfonate, and urea-formaldehyde resin as raw materials, and the weight percentages of each raw material in the total weight are respectively: 30% of nano titanium dioxide, 35% of urea-formaldehyde resin, 20% of sodium alkylbenzene sulfonate, 15% of polyurethane; the above-mentioned various raw materials (both solid powder) are measured and mixed according to the percentage and evenly packed into bags to obtain the water chestnut of the present invention. Admixtures for enhancing the mechanical properties of magnesium cementitious materials.

Embodiment 3

[0024] An admixture capable of enhancing the mechanical properties of magnesite cementitious materials, using nano-titanium dioxide, polyurethane, sodium alkylbenzene sulfonate, and urea-formaldehyde resin as raw materials, and the weight percentages of each raw material in the total weight are respectively: 27% of nano titanium dioxide, 33% of urea-formaldehyde resin, 23% of sodium alkylbenzene sulfonate, and 17% of polyurethane; the above-mentioned various raw materials (both are solid powder) are measured and mixed according to the percentage and evenly packed into bags to obtain the water chestnut of the present invention. Admixtures for enhancing the mechanical properties of magnesium cementitious materials.

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Abstract

The invention relates to an additive capable of enhancing the mechanical properties of a magnesite cementing material. The additive is prepared from nano titanium white, polyurethane, sodium alkyl benzene sulfonate and urea-formaldehyde resin, and the mechanical properties of the magnesite cementing material are changed through the action on the magnesite cementing material by nano titanium white, polyurethane, sodium alkyl benzene sulfonate and urea-formaldehyde resin; through clogging and closing the micropores of the magnesite cementing material by nano titanium white, the compactness is improved, and the binding force among molecules is enhanced; through effectively improving the pore structure of the cementing material by polyurethane and urea-formaldehyde resin, the acting force among bodily form molecules is increased, and the elasticity and strength of glass fibers after a product is formed are enhanced, so that the strength and toughness of the product are improved; through reducing the capillary channels of the cementing material by sodium alkyl benzene sulfonate, the compactness of the product is improved, and furthermore, the binding force between inorganic substances and organic additives can be enhanced, so that the water resistance and strength of the product are improved.

Description

technical field [0001] The invention relates to a chemical auxiliary agent and a use method thereof, in particular to a modified admixture for enhancing various mechanical performance indexes of magnesite cementitious materials and a use method thereof. It is mainly used in the production and preparation of magnesite gelling materials. Background technique [0002] Magnesite cementitious material, also known as magnesite cement, is an air-hardening cementitious material with high strength, good water resistance, anti-corrosion, fire prevention, low price, good processability, and has good properties for inorganic and organic materials or fibers. It is widely used in construction, decoration, urban construction, agriculture and other fields, and it needs to replace wood in many aspects. However, the mechanical properties of magnesite sheets or magnesite products currently on the market cannot be compared with wood products in terms of tensile strength, bending strength, comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/30C04B14/42
Inventor 梁美东
Owner HUNAN CHEM VOCATIONAL TECH COLLEGE