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Elastic phenylethylene-ester acrylate water-proof emulsion and preparation method thereof

A technology of acrylate and waterproof emulsion, which is applied in the direction of building components, building insulation materials, etc., can solve the problem that the elongation at break and tensile strength of waterproof coatings cannot be achieved, and the tensile strength and elongation at break cannot be met at the same time, and waterproof The paint is easy to turn green and equal, and achieves the effect of good acid and alkali resistance, low cost and stable hue

Inactive Publication Date: 2007-10-03
陈毅曦
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Problems solved by technology

There are following deficiencies in these two kinds of emulsions and the waterproof material prepared with the emulsion: the one, the emulsion hue is unstable, the bonding strength with the cement base surface is less than 1.0Mpa, the tensile strength is less than 1.5Mpa and the elongation at break is less than 60% , and the tensile strength and elongation at break cannot meet the requirements of the national standard at the same time; the second is that the cement-based polymer waterproof coating prepared with this emulsion is prone to chemical reactions with the alkaline substances in the cement, resulting in instability, swelling, and thickening , causing the elongation at break and tensile strength of the waterproof coating to fail to meet the national building materials industry GB / JCT 894-2001 cement-based polymer waterproof coating technical indicators; the third is that the cement-based polymer waterproof coating prepared with the emulsion is easy to change green Phase, blue phase, black phase, swelling, thickening, short usable time, poor construction performance

Method used

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  • Elastic phenylethylene-ester acrylate water-proof emulsion and preparation method thereof

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Embodiment Construction

[0056] The elastic styrene-acrylate waterproof emulsion of the present invention and its preparation method will be further described in detail below in conjunction with the accompanying drawings.

[0057] The present invention is an elastic styrene-acrylate waterproof emulsion with improved performance, which is composed of a melt-polymerized mixed solution, and its composition and weight percentage are as follows:

[0058] (A) component a 1 , the dosage is 14.8~29.9%, the component a 1 is composed of:

[0059] (a) 10.5-20.0% deionized water;

[0060] (b) 0.3% to 1.0% of 2A 1 anionic emulsifier;

[0061] (c) 0.6-1.6% OP-10 polyoxyethylene alkaryl ether anionic emulsifier;

[0062] (d) 0.03% to 0.10% of A-501 anionic emulsifier;

[0063] (e) 2.0-4.8% deionized water;

[0064](f) 1.4% to 2.4% of acryloyl ammonium functional monomer;

[0065] (B) Component a 2 , the dosage is 49.0~58.0%, the component a 2 is composed of:

[0066] (a) 37.0%~42.0% n-butyl acrylate soft ...

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Abstract

This invention relates to elasticity styrene - acrylate waterproof latices and its preparation method. It is polymerized by nine kind component and seed emulsion. The preparation method includes as follows steps: whip, vacuumize, whip, polymerization, thermal insulation, cooling, thermal insulation, cooling, filter, casing. This invention has low cost, stable color phase, moderate consistency, good acid and alkaline protection, and lower vitrification point. It can effectively eliminate liberation monomer, avoid enviroment pollution. This invention especially fit for cement group polymer waterproof, waterproofing work as well as impervious seal stuff.

Description

1. Technical field [0001] The invention relates to the technical field of fine chemicals, especially elastic styrene-acrylate waterproof emulsion and its preparation method. Crack filling material application. 2. Background technology [0002] At present, there are many types of emulsions that can be used for waterproof materials on the market. The pure acrylic TRC elastic emulsion of Jiangsu Sunrise Group and the CEMBOND 601 styrene-acrylic emulsion produced by American National Starch are the advanced representatives, both of which are used to prepare waterproof materials. . There are following deficiencies in these two kinds of emulsions and the waterproof material prepared with the emulsion: the one, the emulsion hue is unstable, the bonding strength with the cement base surface is less than 1.0Mpa, the tensile strength is less than 1.5Mpa and the elongation at break is less than 60% , and the tensile strength and elongation at break cannot meet the requirements of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/16C08F2/26C08F2/38C08F4/40C08F212/08E04B1/62
Inventor 陈毅曦
Owner 陈毅曦
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