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Flexible acrylic acid emulsion

A technology of acrylic emulsion and methacrylic acid, which is applied in the field of acrylic emulsion, can solve the problems of mixing non-electrical substances, etc., and achieve the effects of high flexibility retention, reduced electrical influence, and good chemical stability

Inactive Publication Date: 2003-03-26
江苏日出化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current acrylic emulsion system cannot be mixed with cement, a substance with a large amount of charge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Weigh each component according to the following weight percentage (%):

[0023] Butyl acrylate 35, styrene 15, methacrylic acid 0.8, acrylamide 1, ethyl acetoacetate methacrylate 2, sodium dodecylbenzene sulfonate 1.8, ammonium persulfate 0.5, sodium dithionite 0.4, ammonia 1.5, Water 42, using low-temperature oxidation-reduction reaction, the reaction temperature is 63~67℃, and the oxidant and reducing agent are added dropwise at the same time; when the temperature rises to 75℃, start to drip the monomer, keep the temperature at 63~67℃, and the dripping time is 3.5 hours , Keep the temperature for 30 minutes, then stir for 15 minutes, then cool to 40°C, filter and discharge.

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PUM

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Abstract

A kind of soft propenoic acid latex is involved in this invention, whose formula has monomer with non saturated bond, emulsifying agent, and water. The said monomer contains methacrylate acetyl ether caproate whose content is 1.01-3.03% weight percentage in total latex besides propenoic acid and acrylate, methacrylate, styrene etc. contents. The invention acts methacrylate acetyl ethyl caproate as crosslinking agents which differs with other electriferous hydronium crosslinking agents because it produces short time polarity and produces crosslinking, and no confected latex has A-OK chemistry stability and can aggregate with cement as waterproof layer and tile putty having chapproof and alkaliproof capabilities, settless technical problem of properoic acid latex happening latex-broke when it meets strong electrolyte and not mixing with cement.

Description

Technical field [0001] The invention relates to an acrylic emulsion, in particular to the preparation of cement polymers, as a flexible acrylic emulsion for building a waterproof layer with anti-cracking and alkali-proof properties, and tile putty. Background technique [0002] At present, acrylic emulsion is composed of the following parts: A. Monomers with unsaturated bonds, such as acrylic acid and esters, methacrylic acid and esters, and styrene, are polymerized to form polymers to form the main body of acrylic emulsions. Among them, acrylic acid and methacrylic acid Charged or have strong polarity, used as crosslinking monomer, stabilizing monomer, adhesion promoting monomer. B. Emulsifiers, segregant emulsifiers and nonionic emulsifiers, which form micelles in water to provide polymerization sites and provide emulsion stability through electricity or hydration. C. Water-soluble initiator, which decomposes at high temperature to form free radicals to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/22C08F220/10
Inventor 周松奎邱敬龙
Owner 江苏日出化工有限公司
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