Silicon hybridization acrylate and cement composite grouting material and preparation method thereof

A technology of acrylate and grouting materials, which is applied in the field of new materials for municipal and construction projects. It can solve the problems of limited application range, low strength, and inability to play the role of anti-seepage and reinforcement, and achieves environmental friendliness, improved compatibility, and facilitates industrialization. The effect of production

Inactive Publication Date: 2019-10-18
BEIJING MUNICIPAL CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of acrylate grouting material is low, and it cannot play

Method used

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  • Silicon hybridization acrylate and cement composite grouting material and preparation method thereof
  • Silicon hybridization acrylate and cement composite grouting material and preparation method thereof
  • Silicon hybridization acrylate and cement composite grouting material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A silicon hybrid acrylate composite grouting material and a preparation method thereof.

[0041] Step a: Weigh 7.5% acrylic acid (AA), slowly add 3.35% sodium hydroxide (NaOH) solution dropwise to the acrylic acid solution in an ice-water bath under magnetic stirring, and react at room temperature for 5 hours after the dropwise addition;

[0042] Step b: Mix 2% γ-(2.3 glycidoxy)propyltrimethoxysilane with 2% distilled water and stir for 2 hours;

[0043] Step c: Mix the solutions prepared in step a and step b, and after stirring for 2 hours, weigh 0.5% of N,N'-methylenebisacrylamide and 2% of triethanolamine and mix them uniformly in the mixed solution, and stir for 30 minutes to make it Mix well, and form A liquid after stirring evenly;

[0044] Step d: Weigh 1.0% ammonium persulfate and 0.2% ferrous sulfate, dissolve them in distilled water, and prepare liquid B;

[0045] Step e: Pour liquid A and liquid B into a 500ml separating funnel respectively, then quickly op...

Embodiment 2-5

[0047] A silicon hybrid acrylate-cement composite grouting material and a preparation method thereof.

[0048] Step a: Weigh 7.5% acrylic acid (AA), slowly add 3.35% sodium hydroxide (NaOH) solution dropwise to the acrylic acid solution in an ice-water bath under magnetic stirring, and react at room temperature for 5 hours after the dropwise addition;

[0049] Step b: Mix 2% γ-(2.3 glycidoxy)propyltrimethoxysilane with 2% distilled water and stir for 2 hours;

[0050] Step c: Mix the solutions prepared in step a and step b, and after stirring for 2 hours, weigh 0.5% of N,N'-methylenebisacrylamide and 2% of triethanolamine and mix them uniformly in the mixed solution, and stir for 30 minutes to make it Fully mix, finally add 52.5 cements of different mass fractions in the mixed solution, form A liquid after stirring; Wherein, the cement content is 12.5% ​​in the embodiment 2, and the cement content in the embodiment 3 is 25%, and the cement content in the embodiment 4 is 37.5%...

Embodiment 6

[0054] A silicon hybrid acrylate-cement composite grouting material and a preparation method thereof.

[0055] Step a: Weigh 10% acrylic acid (AA), slowly add 5% sodium hydroxide (NaOH) solution dropwise to the acrylic acid solution in an ice-water bath under magnetic stirring, and react at room temperature for 5 hours after the dropwise addition;

[0056] Step b: Mix 1.5% methyl orthosilicate with 2% distilled water and stir for 2 hours;

[0057] Step c: Mix the solutions prepared in step a and step b, and after stirring for 2 hours, weigh 0.55% diisocyanate and 2.0% calcium chloride and mix them evenly in the mixed solution, stir for 30 minutes to make them fully mixed, and finally mix them in the mixed solution Add 50% of 62.5 cement and stir well to form A liquid;

[0058] Step d: Weigh 1.2% ammonium persulfate and 0.2% sodium bisulfite, dissolve them in distilled water, and prepare liquid B;

[0059] Step e: Pour liquid A and liquid B into a 500ml separating funnel resp...

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Abstract

The invention discloses a silicon hybridization acrylate-cement composite grouting material and a preparation method thereof, and belongs to the technical field of new materials of municipal and construction projects. Inorganic binder cement and inorganic nanoparticles are introduced into an acrylate pre-polymer, a polymerization reaction is generated under the effects of a crosslinking agent, aninitiator and a promoter, and a mixture is polymerized to form a mesh complex hybridization gel body insoluble in water through the processes of chain initiation, chain growth and chain termination; siloxane modified acrylate can eliminate the difference between an organic material and an inorganic material (cement), improve the interaction between interfaces, and improve compatibility between polyacrylate resin and the cement; and the composite grouting material is less in environment pollution, does not generate dust pollution, belongs to an environment-friendly material, and can simultaneously solve the problems that an acrylate grouting material is low in strength, and a cement grouting material is poor in dry shrinkage resistance, durability and dispersion resistance.

Description

technical field [0001] The invention relates to the technical field of new municipal and construction engineering materials, in particular to a silicon hybrid acrylate-cement composite grouting material and a preparation method thereof. Background technique [0002] With the development of the national economy and the advancement of science and technology, the construction of large-scale projects such as super-large-scale underground projects, highway networks, large-scale dams, and long-span bridges has made the working environment of cement structures increasingly complex and harsh. Higher requirements are put forward for the strength, shrinkage resistance, dispersion resistance and durability of cement. The structure of cement itself is not dense, and there are many capillary channels. When corrosive substances invade, they will undergo physical and chemical changes with the cement components, resulting in a decrease in the durability of the cement material and corrosion ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B111/70C04B111/20
CPCC04B28/00C04B2111/20C04B2111/70C04B14/062C04B22/14C04B22/149C04B24/2641C04B2103/0046C04B24/124C04B24/122C04B24/128C04B22/124C04B22/068C04B24/06C04B24/045C04B22/085
Inventor 孔恒姜瑜郭飞张丽丽田治州董凯李贺乔国刚林雪冰王渭王亚杰孙博通郝亮王凯丽
Owner BEIJING MUNICIPAL CONSTR
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