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Water-based environment-friendly electrostatic spraying baking paint and preparation method thereof

An electrostatic spraying, environmental protection technology, applied in the direction of coating, etc., to achieve the effect of high hardness, solve safety and environmental protection problems, and plump paint film

Inactive Publication Date: 2014-09-10
广东华楠树环保涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects, the purpose of the present invention is to provide a water-based environmentally friendly electrostatic spraying baking varnish to solve the safety and environmental protection problems of traditional oil-based baking varnishes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] A kind of preparation method of water-based environment-friendly electrostatic spraying baking varnish, it comprises the following steps

[0034] A) preparation of modified water-based resin:

[0035] (1) Add epoxy resin, ethylene glycol butyl ether, isopropanol, and propylene glycol methyl ether into the reaction kettle in proportion, turn on the mixer and stir for 10-15 minutes, set the temperature of the reaction kettle to 113-118°C, and start heating ;

[0036] (2) Put butyl acrylate, hydroxypropyl acrylate, methyl acrylate, acrylic acid and initiator into the mixing tank in proportion to mix, and after mixing evenly, let it stand for 20-40 minutes to obtain the mixed material;

[0037] (3) Put the above-mentioned mixed material into the high-level dripping tank;

[0038] (4) When the temperature in the reactor rises to the set value and reflux begins, start to add the above-mentioned mixed material dropwise, and the dropping time is controlled at 3-4 hours, and t...

Embodiment 1

[0046] The preparation method of water-based environment-friendly electrostatic spraying baking paint comprises:

[0047] A) Preparation of modified water-based resin: add 15% of epoxy resin, 11% of ethylene glycol butyl ether, 8% of isopropanol, and 12% of propylene glycol methyl ether into the reaction kettle in proportion according to the mass percentage, turn on the mixer and stir for 10 minutes, Set the temperature of the reaction kettle to 115°C and start heating; then put 13% butyl acrylate, 11% hydroxypropyl acrylate, 6% methyl acrylate, 8% acrylic acid and 3% initiator into the mixing tank in proportion to mix , After mixing evenly and standing for 30 minutes, the obtained mixed material was poured into the high-level dripping tank; when the temperature in the reactor rose to the set value and began to reflux, the above-mentioned mixed material was started to be added dropwise, and the dropping time was controlled at 3 hours. The temperature of the reaction kettle is ...

Embodiment 2

[0052]A) Preparation of modified water-based resin: add 10% of epoxy resin, 10% of ethylene glycol butyl ether, 10% of isopropanol, and 15% of propylene glycol methyl ether into the reaction kettle in proportion according to the mass percentage, turn on the mixer and stir for 10 minutes, Set the temperature of the reaction kettle to 113-118°C and start heating; then add 15% butyl acrylate, 15% hydroxypropyl acrylate, 10% methyl acrylate, 10% acrylic acid and 2% initiator into the mixture in proportion Tank mixing, after mixing evenly and standing for 20 minutes, the mixed material was put into the high-level dripping tank; when the temperature in the reactor rose to the set value and began to reflux, the above-mentioned mixed material was started to be added dropwise, and the dropping time was controlled at 3 Hours, the temperature of the reaction kettle is controlled at 118°C; after the dropwise addition, keep warm for 3 hours, measure the acid ester, when the acid value is 60...

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Abstract

The invention relates to water-based paint and a preparation method thereof, in particular to water-based environment-friendly electrostatic spraying baking paint and the preparation method thereof. The water-based environment-friendly electrostatic spraying baking paint comprises the following components in percentage by mass: 45 to 55 percent of modified water-based resin, 2 to 5 percent of water-based aid, 20 to 30 percent of pigment filler, 8 to 10 percent of water-based amino resin and the balance of deionized water. The water-based environment-friendly electrostatic spraying baking paint is prepared by the process steps of preparing modified water-based resin, preparing paint and the like. The spraying baking paint has high flexibility, high adhesive force, high hardness, good dispersing effect, low resistance, uniform and fine paint film atomization, high glossiness, full paint film, good spraying effect and low cost. The appearance and the performance of the generated pain film reach, even exceed those of the similar oil-based paint. The water-based environment-friendly electrostatic spraying baking paint can be applied to the industries such as hardware fittings, lamp lighting decoration, home appliances, parts of automobiles and motorcycles, mechanical manufacturing and the like.

Description

technical field [0001] The invention relates to a water-based paint and a preparation method thereof, in particular to a water-based environment-friendly electrostatic spraying baking paint and a manufacturing method thereof. Background technique [0002] The traditional liquid spraying and manual hand spraying methods are plagued by problems such as large amount of paint waste, serious environmental pollution, difficult cleaning, low production efficiency, product color difference, and unstable quality. Electrostatic spraying is a spraying method that uses a high-voltage electrostatic electric field to make negatively charged paint particles move in the direction opposite to the electric field, and adsorb the paint particles on the surface of the workpiece. Electrostatic spraying equipment consists of spray guns, spray cups, and electrostatic spraying high-voltage power supplies. The advantages of electrostatic spraying methods for coatings and paints are: 1. Especially hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/10C09D151/08C09D161/20C09D7/12C09D5/46
Inventor 肖永清
Owner 广东华楠树环保涂料有限公司