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High-molecular cement modifier

A cement modifier and polymer technology, applied in the field of materials used as effective components of cement, can solve the problems of unsatisfactory durability, poor alkali resistance, poor weather resistance, etc., and achieve improved wear resistance and good water resistance , The effect of improving acid and alkali corrosion resistance

Inactive Publication Date: 2004-02-25
湖南新杰新材实业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these properties of the above-mentioned latex, especially the weather resistance, are poor, such as polyvinyl dichloride emulsion and styrene-butadiene emulsion; while polyvinyl acetate emulsion has poor alkali resistance.
In short, the cement modified by the above emulsion is not yet satisfactory in durability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] a. Take 200 kg of emulsion-type epoxy resin into the tank, add 1300 kg of VAE emulsion, and wait until the emulsion-type epoxy resin is completely dissolved for later use;

[0011] B. Pour the obtained emulsion type epoxy resin solution in the a process into the reactor, then add 500 kilograms of polyvinyl chloride, 500 kilograms of vinyl acetate, 10 kilograms of formaldehyde, 10 kilograms of dibutyl fat and 400 kilograms of VAE emulsion to mix together, Heat at 100°C to 110°C while stirring for 3 hours until a uniform slurry is set aside;

[0012] c. The slurry obtained in the b process is filtered through a secondary cloth sieve to obtain the finished product according to 50 kg / bag, sealed inner packaging with transparent plastic bags, and outer packaging with plastic bags. Example 2

Embodiment 2

[0013] a. Take 100 kg of emulsion-type epoxy resin into the tank, add 385 kg of vAE emulsion, soak for 3 hours to completely dissolve the emulsion-type epoxy resin in the VAE emulsion for later use

[0014] B, pour the obtained emulsion type epoxy resin dissolving liquid in the a process in the reaction kettle of 1000 liters of capacity, pour polyvinyl chloride and vinyl acetate respectively 175 kilograms in the kettle then, 5 kilograms of formaldehyde, 5 kilograms of dibutyl fats , 150 kg of VAE emulsion is mixed, heated at 100°C to 110°C while stirring for 3 hours until a uniform slurry is set aside;

[0015] c. The slurry obtained in the process is filtered through a secondary cloth sieve to obtain the finished product, which is packed in inner plastic bags and packed in paper-wood composite drums. The packaging specifications are 25 kg / drum, 30 kg / drum`40 kg / barrel`50 kg / barrel, the error of the net content of each barrel shall not be greater than ±0.2 kg.

[0016] The po...

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PUM

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Abstract

A high-molecular modifier of cement is prepared from polyvinyl chloride, ethylene acetate, epoxy resin, formaldehyde, dibutyl ester and VAE emulsion through proportional mixing, heating, stirring and filter. Its advantages are better durability, weatherability and resistance to water, acid and alkali. With it , the cement product has high durability, imperviousness increased by 200%, and adhesion raised by 117%.

Description

technical field [0001] The invention relates to a polymer cement modifier, which belongs to the technical field of materials used as effective components of cement. Background technique [0002] Cement is one of the most widely used materials in civil engineering. Cement products have high strength, long service life and low manufacturing cost. Therefore, it is favored by people. But simple cement products have their disadvantages, such as easy cracking, poor water resistance, acid resistance, and impact resistance. For example, the China Building Materials Industry Planning Research Institute and the China Building Waterproof Material Corporation conducted a survey of 430.35 million square meters of houses (equivalent to an area of ​​83.26`1 million square meters) in Beijing, Shanghai, Harbin, Chengdu, and Guangzhou in 1987, and found that the total leakage The area accounts for more than 30%. And the situation of underground building seepage is just more serious. In par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/26
CPCC04B2103/0061C04B24/2682
Inventor 王建新
Owner 湖南新杰新材实业有限责任公司