Electrostatic spraying priming paint

An electrostatic spraying and primer technology, applied in the field of coatings, can solve the problems of sag resistance, poor coating, and short gel time.

Active Publication Date: 2014-09-10
珠海展辰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrostatic spray paint provided by the prior art has fast drying speed and high gloss, but the el...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Under the stirring velocity of 1000 rev / mins, the 3310 type soybean oil alkyd resin of 50g, the 735A castor oil alkyd resin of 12g and the n-butyl acetate of 32.6g carry out the first mixing, obtain the first mixture; Add 0.3g of HX2300 type defoamer and 0.3g of HX3200 type leveling agent to the first mixture for 10 minutes of second mixing to obtain a second mixture; add 2g of BT-828 to the second mixture Type organobentonite is mixed for the third time to obtain a third mixture with a fineness≤50 microns; 3g of zinc stearate is added to the third mixture for 10 minutes of fourth mixing to obtain the agent A mixture.

[0081] Mix 45g of Mitsui L-75 type curing agent and 50g of n-butyl acetate, add 5g of Bayer IL1451 type curing agent to the resulting mixture and mix to obtain the B agent mixture.

[0082] Mix the mixture of agent A and agent B according to the mass ratio of 1:0.5 to obtain an electrostatic spraying primer.

[0083] The electrostatic spray primer obtai...

Embodiment 2

[0087] Under the stirring velocity of 800 rev / mins, the 3310 type soybean oil alkyd resins of 45g, the castor oil alkyd resins of the 735A type castor oil alkyd resins of 4g and the propylene glycol methyl ether acetate of 20g carry out the first mixing, obtain the first mixture; Add 0.2g of HX2500 type defoamer and 0.4g of HX3130 type leveling agent to the first mixture for 8 minutes of second mixing to obtain a second mixture; add 1g of bentonite to the second mixture for the second Three mixing to obtain a third mixture with a fineness of ≤50 microns; adding 1 g of zinc stearate to the third mixture for 12 minutes of fourth mixing to obtain the A agent mixture.

[0088] Mix 30 g of Mitsui L-75 type curing agent and 60 g of propylene glycol methyl ether acetate, add 3 g of Bayer IL1451 type curing agent to the resulting mixture and mix to obtain the B agent mixture.

[0089] The agent A mixture and the agent B mixture are mixed according to the mass ratio of 1:0.3 to obtain ...

Embodiment 3

[0092] At a stirring speed of 1200 rpm, 56g of coconut oil alkyd resin, 10g of 735A type castor oil alkyd resin and 28g of dimethylbenzene are mixed first to obtain a first mixture; Add the HX2500 type defoamer of 0.4g and the HX3200 type leveling agent of 0.2g and carry out the second mixing of 12 minutes, obtain the second mixture; Add the bentonite of 3g in the second mixture and carry out the third mixing, obtain fine A third mixture with a degree of less than or equal to 50 microns; 4 g of zinc stearate was added to the third mixture for 8 minutes of fourth mixing to obtain the A agent mixture.

[0093] Mix 50 g of Mitsui L-75 type curing agent and 40 g of xylene, add 7 g of Bayer IL1451 type curing agent to the obtained mixture and mix to obtain the B agent mixture.

[0094] The agent A mixture and the agent B mixture are mixed according to the mass ratio of 1:0.6 to obtain an electrostatic spraying primer.

[0095] The electrostatic spraying primer obtained in Example ...

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Abstract

The invention provides an electrostatic spraying priming paint. The electrostatic spraying priming paint comprises an agent A and an agent B. The agent A comprises the following components in parts by weight: 45-62 parts of first alkyd resins, a parts of second alkyd resins, b parts of defoaming agents, c parts of flatting agents, 1-5 parts of fillers, and 1-4 parts of bentonite; the agent B comprises the following components in parts by weight: d parts of toluene diisocyanate trimer, 30-60 parts of toluene diisocyanate-trimethylolpropane addition products, and 10-50 parts of solvents; the mass ratio of the agent A to the agent B is 1 to (0.3-0.8). The electrostatic spraying priming paint comprises bentonite, the content of toluene diisocyanate trimer in the electrostatic spraying priming paint is less, and the mass proportion of the agent A and the agent B in the electrostatic spraying priming paint is moderate, so that the electrostatic spraying priming paint is high in sagging resistance and cladding property and long in gel time.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an electrostatic spraying primer. Background technique [0002] Electrostatic spraying is a spraying method that uses a high-voltage electrostatic electric field to make negatively charged paint particles move in a direction opposite to the electric field, and adsorb the paint particles on the surface of the workpiece. In the process of electrostatic spraying, the paint particles can be firmly adsorbed on the surface of the workpiece, effectively preventing the paint from escaping and improving the utilization rate of the paint, so electrostatic spraying can save a lot of paint. In addition, electrostatic spraying can also reduce air pollution, make the spraying process mechanized and continuous, reduce the scrap rate, and improve production efficiency. [0003] Most of the film-forming substances and pigments in the paint are composed of high-molecular organic compounds, and m...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D5/46
Inventor 黎小华陈寿生
Owner 珠海展辰新材料股份有限公司
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