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Preparation method of acrylic polymer

A technology for acrylic polymers and polymerized monomers, which is applied in the field of preparation of acrylic polymers. It can solve the problems of poor air permeability, environmental protection, and solvent volatilization of oily products, and achieve the effects of improving film-forming properties, improving cost performance, and stable reaction.

Inactive Publication Date: 2014-08-20
周杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Over the years, wallpaper inks have mainly used oily PVC gravure surface printing inks. The disadvantage is that oily products have solvent volatilization, which is not environmentally friendly, and the production and transportation are very inconvenient. The products produced are easy to vacuum and stick to the wall. Breathable poor sex

Method used

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Examples

Experimental program
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Embodiment 1

[0007] Example 1: Under the protection of nitrogen, 195 grams of dehydrated polyester polyol CMA44, 1 gram of catalyst T-12 and 82 grams of polyisocyanate IPDI were reacted for 1.5 hours at 70-75 ° C. During the reaction, the Di-n-butylamine measures the content of NCO to judge the end point of the reaction, when the content of NCO is 2%-3% of the reaction solution weight, it is the end point of the reaction, when the reaction reaches the end point, add 13 grams of dimethylol propionic acid to react 1 Hours, the temperature of the reaction is 60-65 ° C, cooling to 40 ° C; then add triethylamine for neutralization reaction, triethylamine is 12 grams, then add a diluent solvent for dilution, the diluent solvent is water, 400 grams, In this way, the viscosity of the solution after the neutralization reaction is reduced, the chain extender is an aqueous solution of ethylenediamine, 8 grams of ethylenediamine, and 150 grams of water, emulsification and chain extension at normal temp...

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PUM

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Abstract

The invention discloses a preparation method of an acrylic polymer. The method comprises the steps of under the protection of nitrogen, enabling dehydrated polyester polyol CMA44 to react with polyisocyanate IPDI, adding an emulsified hydrophilic reagent to perform reaction for a period of time after completing the reaction, and then cooling; adding an alkali solution to perform neutralization, then adding a dilution solvent to perform dilution, emulsifying at room temperature, and performing chain extension by using a chain extender to obtain an aqueous polyurethane dispersion; emulsifying the aqueous polyurethane dispersion and a polymerized monomer together, then performing core-shell co-polymerization, and then cooling to obtain a finished product. The preparation method of the acrylic polymer, disclosed by the invention, adopts polyisocyanate IPDI as a main component, can be used for improving the film formation performance, flexibility and air permeability of the final products, reducing the cost of the products and improving the cost-performance ratio, and has the advantages of alcohol rubbing resistance and the like.

Description

technical field [0001] The invention relates to a preparation method of an acrylic acid polymer. Background technique [0002] Over the years, wallpaper inks have mainly used oily PVC gravure surface printing inks. The disadvantage is that oily products have solvent volatilization, which is not environmentally friendly, and the production and transportation are very inconvenient. Poor sex. With the progress of the times, the qualitative change of science and technology, the improvement of living environment, and the state's control of solvent-based compounds, it is imminent to produce an environmentally friendly high-performance water-based polymer material that can be used for wallpaper inks. Contents of the invention [0003] The invention provides a preparation method of acrylic acid polymer, which adopts polyisocyanate IPDI as the main component, improves the film-forming property, flexibility and gas permeability of the final product, reduces the cost of the product,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F212/08C08F220/06C08F220/28C08F220/14C08F220/18C08G18/75C08G18/66C08G18/42C09D11/107
Inventor 周杰
Owner 周杰
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