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Method for preparing environment-friendly pigment printing binder

A technology for adhesives and coatings, applied in the direction of adhesive types, ester copolymer adhesives, paper coatings, etc., can solve the problems of gloss, water resistance, and lack of fullness, and achieve excellent mechanical properties and simple preparation methods. , the effect of low cost

Inactive Publication Date: 2012-05-30
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Emulsion coatings are the most important type of water-based coatings. Emulsion coatings are gradually replacing solvent coatings due to their environmental friendliness. However, acrylic emulsion polymerization coatings are not as good as similar solvents in terms of film performance such as gloss, water resistance, and fullness. type paint

Method used

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  • Method for preparing environment-friendly pigment printing binder
  • Method for preparing environment-friendly pigment printing binder
  • Method for preparing environment-friendly pigment printing binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 In a 500ml there-necked flask equipped with a stirrer, condenser, nitrogen protection and feeding device, add 22.5 grams of methyl methacrylate, 22.5 grams of butyl acrylate, 0.45 grams of acrylic acid, 4.5 grams of dodecylbenzenesulfonate Sodium bicarbonate and OP-10 emulsifier (mass ratio is 2:1) and a certain amount of deionized water (2 / 3 of the total water content), emulsified under the condition of reflux condensation at a temperature of 40°C for 90 minutes. Take 1 / 3 of the pre-emulsion in a three-necked flask, add the remaining deionized water and 1 / 3 of the initiator, stir, reflux and condense at 80°C for preparation, and react for 120 minutes until the emulsion is light blue. Put the remaining pre-emulsion in the dropping funnel, slowly drop it into the reactor, and add the remaining initiator to prepare the adhesive. After the dropping, add NaHCO 3 Adjust the pH value of the aqueous solution to 7-7.5, keep it warm for 60 minutes and take it out. The...

Embodiment 2

[0021] Embodiment 2 In the there-necked flask that stirrer, condenser tube, nitrogen protection and feeding device are equipped with in 500ml, add 22.5 gram methyl methacrylates, 22.5 gram butyl acrylates, 0.45 gram acrylic acid, 4.5 gram nonionic emulsifiers and A certain amount of deionized water (2 / 3 of the total water content) is emulsified for 90 minutes under the condition of reflux condensation at a temperature of 40°C. Take 1 / 3 of the pre-emulsion in a three-necked bottle, assuming the remaining deionized water and 1 / 3 of the initiator, stir, reflux and condense to prepare at 80°C, react for 120 minutes, and put the remaining pre-emulsion in the drop In the funnel, slowly drop into the reactor, and add the remaining initiator to prepare the adhesive. After the dropwise addition, add NaHCO 3 Adjust the pH value of the aqueous solution to 7-7.5, keep it warm for 60 minutes and take it out. The solid content of the obtained aqueous emulsion is 40%, the latex particle siz...

Embodiment 3

[0022] Example 3 In a 500ml there-necked flask equipped with a stirrer, condenser, nitrogen protection and feeding device, 17.5 grams of methyl methacrylate, 5 grams of styrene, 22.5 grams of butyl acrylate, 0.45 grams of acrylic acid, 4.5 grams of non An ionic emulsifier and a certain amount of deionized water (2 / 3 of the total water content) are emulsified for 90 minutes under the condition of reflux condensation at a temperature of 40°C. Take 1 / 3 of the pre-emulsion in a three-necked bottle, assuming the remaining deionized water and 1 / 3 of the initiator, stir, reflux and condense to prepare at 80°C, react for 120 minutes, and put the remaining pre-emulsion in the drop In the funnel, slowly drop into the reactor, and add the remaining initiator to prepare the adhesive. After the dropwise addition, add NaHCO 3 Adjust the pH value of the aqueous solution to 7-7.5, keep it warm for 60 minutes and take it out. The solid content of the obtained aqueous emulsion is 40%, the late...

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Abstract

The invention relates to a method for preparing a waterborne polyacrylate pigment printing binder, characterized by carrying out copolymerization on three kinds of monomers of unsaturated hard monomer, soft monomer and acrylic acid by an emulsion under the emulsification of a non-ionic emulsifier, belonging to the technical field of preparing waterborne paints. The method comprises the following steps: adding a certain amount of aqueous medium, emulsifier, initiator, methyl methacrylate or styrene, butyl acrylate, acrylic acid and the like in a reactor by a semi-continuous process at a temperature of 70-85 DEG C, and polymerizing for 4-7 h. According to the invention, high storage stability, good film forming property, and good glossiness are achieved. A material having transparency and excellent elasticity can be prepared by precipitation polymerization. Because no monomer that causes pollution to the environment exists in the synthesis process, and the degradation process does not generate polluting compounds, the material is a paint having excellent environmental protection performance, and can be used as slurry for printing binders and spinning. The preparation method has the advantages of simple steps, easy operation, and convenient popularization, and has economic benefits and social benefits.

Description

1. Technical field: [0001] The invention relates to a preparation method and application of a polyacrylate water-based paint adhesive, in particular to a preparation method of a paint printing adhesive. 2. Technical background: [0002] With the continuous improvement of people's living standards, people's requirements for their own environment are getting higher and higher, and environmental protection laws and regulations are becoming stricter. Since the 1990s, the demand for coatings in the world has been increasing at a rate of 3%, and the organic solvents used in the production of coatings volatilize a large amount of volatile organic compounds (VOCs) after coating and film formation, and VOCs are exposed to sunlight under the action of sunlight. The following reaction will occur: VOC+NO 2 +O 2 + daylight → O 3 +CO 2 +H 2 O, generated O 3 At lower concentrations, it will have very adverse effects on human health. According to reports, in terms of VO emissions tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/06C08F2/30C08F212/08C09J133/12C09J133/08C09J133/10C09D133/12C09D133/08C09D133/10D06P1/52D21H19/20
Inventor 潘勇军陆必泰朱虹
Owner WUHAN TEXTILE UNIV
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