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Method for preparing thermosetting acrylic ester emulsion coating under room temperature

A thermosetting, acrylic technology, applied in coatings and other directions, can solve the problems of coating hardness, water resistance, anti-adhesion, unsatisfactory chemical resistance, and limited performance improvement of interpenetrating network coatings.

Inactive Publication Date: 2007-07-11
HUNAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned latex interpenetrating network polymer resin, its cross-linking network is only limited in the range of each latex particle, that is, in the range of tens to hundreds of nanometers. After the emulsion is formed into a film, the coating film is still thermoplastic. The improvement of the performance of the network coating film is limited, and the hardness, water resistance, anti-stickiness and chemical resistance of the coating are not ideal

Method used

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  • Method for preparing thermosetting acrylic ester emulsion coating under room temperature
  • Method for preparing thermosetting acrylic ester emulsion coating under room temperature
  • Method for preparing thermosetting acrylic ester emulsion coating under room temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057]In a 500mL three-necked reactor equipped with a mechanical stirrer, condenser and constant pressure funnel, add 0.225g of anionic emulsifier sodium lauryl sulfate, 0.675g of nonionic emulsifier polyethylene glycol octylphenyl ether, buffer Add sodium bicarbonate 0.15g and water 95mL, heat and stir to dissolve. Mix 15.96g of methyl methacrylate, 24.05g of butyl acrylate, and 1.5g of 1,6-hexanediol diacrylate, and pour it into a solution containing 0.263g of sodium lauryl sulfate and 0.788 20 mL of polyethylene glycol octylphenyl ether was pre-emulsified for 15 min to obtain a pre-emulsified nucleomonomer. Remove part of the pre-emulsified core mixed monomer to the above-mentioned three-port reactor for high-speed dispersion for 5 minutes, reduce the stirring speed to 300r / min, raise the temperature to 76°C, add 0.15g of initiator ammonium persulfate to initiate the polymerization reaction, and wait until the reaction system turns blue. After the body reflux disappeared, ...

Embodiment 2

[0060] In a 500mL three-necked reactor equipped with a mechanical stirrer, condenser and constant pressure funnel, add 0.225g of anionic emulsifier sodium lauryl sulfate, 0.675g of nonionic emulsifier polyethylene glycol octylphenyl ether, buffer Add sodium bicarbonate 0.15g and water 95mL, heat and stir to dissolve. Mix 23.56g of methyl methacrylate, 26.44g of butyl acrylate, and 2.1g of tetraethylene glycol diacrylate, and pour 0.263g of sodium lauryl sulfate and 0.778g of polystyrene under high-speed stirring. Ethylene glycol octylphenyl ether was pre-emulsified in 20 mL of water for 15 minutes to obtain pre-emulsified nucleomonomers. Remove part of the pre-emulsified core mixed monomer to the above-mentioned three-port reactor for high-speed dispersion for 5 minutes, reduce the stirring speed to 300r / min, raise the temperature to 76°C, add 0.15g of initiator ammonium persulfate to initiate the polymerization reaction, and wait until the reaction system turns blue. After t...

Embodiment 3

[0063] In a 500mL three-necked reactor equipped with a mechanical stirrer, condenser and constant pressure funnel, add 0.225g of anionic emulsifier sodium lauryl sulfate, 0.675g of nonionic emulsifier polyethylene glycol octylphenyl ether, buffer Add sodium bicarbonate 0.15g and water 95mL, heat and stir to dissolve. Mix 28.27g of methyl methacrylate, 31.73g of butyl acrylate, and 1.6g of trimethylolpropane triacrylate, and pour 0.263g of sodium lauryl sulfate and 0.778g of polyethylene glycol into the solution under high-speed stirring. Diol octyl phenyl ether was pre-emulsified in 20 mL of water for 15 minutes to obtain pre-emulsified nucleomonomers. Remove part of the pre-emulsified core mixed monomer to the above-mentioned three-port reactor for high-speed dispersion for 5 minutes, reduce the stirring speed to 300r / min, raise the temperature to 76°C, add 0.15g of initiator ammonium persulfate to initiate the polymerization reaction, and wait until the reaction system turns...

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Abstract

The invention discloses a new making method of thermosetting acrylate emulsion paint under indoor temperature in the macromolecular synthesizing making industry, which comprises the following steps: (1). copolymerizing compound with at least two insaturated groups and olefinic monomer to form seed emulsion with crosslinking structure; (2) polymerizing emulsion to obtain core-case structural emulsion; (3) adding crosslinking agent in the emulsion to obtain the product under indoor temperature.

Description

【Technical field】: [0001] The present invention relates to a method for preparing a thermosetting acrylate emulsion coating at room temperature, more specifically, relates to a novel latex interpenetrating network resin composition, which can be used for wood, metal, stoneware, plastics, Decoration and anticorrosion of glass and leather surfaces, interior and exterior wall coatings of buildings, fabric treatment, protection of cultural relics surfaces, etc., especially can be used as a matrix resin for the manufacture of water-based wood coatings. 【technical background】: [0002] Traditional wood coatings are usually solvent-based. From the early phenolic paints, alkyd paints, nitro paints to the most widely used polyurethane paints, they all contain a lot of volatile organic compounds, which release a lot of harmful substances during the production and use of paints. Organic compounds (VOCs) not only poison operators and pollute the atmosphere, but also penetrate into porou...

Claims

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Application Information

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IPC IPC(8): C09D133/08C08F2/22
Inventor 张继德杨慕杰
Owner HUNAN UNIV OF TECH
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