Solvent-resistant scrubbing powder coating and preparation method thereof

A powder coating and solvent-resistant technology, applied in powder coatings, polyester coatings, polyurea/polyurethane coatings, etc., can solve problems such as inappropriate selection of curing agent, no formula, and unsatisfactory powder coatings

Inactive Publication Date: 2018-11-06
广东合邦新型粉末涂料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of a reasonable formula when using polyurethane resin as a raw material to prepare coatings, such as improper selection of curing agents, the existing powder coatings are not ideal in terms of resistance to organic solvents such as alcohol and acetone.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, one, prepare modified polyester:

[0020] Polyurethane resin p6504 is 40%, high acid value polyester CC450 is 49%, aluminum hydroxide ON-310 is 10%, onium salt accelerator is 1%, the raw materials are made into powder, mixed according to the above ratio, extruded and crushed to prepare modified permanent polyester;

[0021] 2. Preparation of solvent-resistant wipe powder coating:

[0022] The aforementioned modified polyester is 60%, curing agent B530 is 10%, curing agent TGIC is 5%, auxiliary agent GLP588 is 1%, barium sulfate is 14%, pigment titanium dioxide R-996 is 10%, raw material powder is mixed and extruded , crushing and grinding to prepare solvent-resistant wiping powder coatings.

[0023] When in use, the paint is sprayed and then shaped by grilling.

Embodiment 2

[0024] Embodiment 2, one, prepare modified polyester:

[0025] Polyurethane resin p6504 is 70%, high acid value polyester CC450 is 19%, aluminum hydroxide ON-310 is 10%, onium salt accelerator is 1%, the raw materials are made into powder, mixed according to the above ratio, extruded and crushed to prepare modified permanent polyester;

[0026] 2. Preparation of solvent-resistant wipe powder coating:

[0027] 40% of the aforementioned modified polyester, 20% of curing agent B530, 10% of curing agent TGIC, 0.5% of auxiliary agent GLP588, 10.5% of barium sulfate, 19% of pigment titanium dioxide R-996, raw material powder mixing, extruding , crushing and grinding to prepare solvent-resistant wiping powder coatings.

[0028] When in use, the paint is sprayed and then shaped by grilling.

Embodiment 3

[0029] Embodiment 3, one, prepare modified polyester:

[0030] Polyurethane resin p6504 is 70%, high acid value polyester CC450 is 10.5%, aluminum hydroxide ON-310 is 19%, onium salt accelerator is 0.5%, the raw materials are made into powder, mixed, extruded and crushed according to the above ratio to prepare modified permanent polyester;

[0031] 2. Preparation of solvent-resistant wipe powder coating:

[0032] The aforementioned modified polyester is 50%, curing agent B530 is 15%, curing agent TGIC is 5%, auxiliary agent GLP588 is 1%, barium sulfate is 10%, pigment titanium dioxide R-996 is 19%, raw material powder is mixed and extruded , crushing and grinding to prepare solvent-resistant wiping powder coatings.

[0033] When in use, the paint is sprayed and then shaped by grilling.

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PUM

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Abstract

The invention discloses a solvent-resistant scrubbing powder coating and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing a modified polyester from raw materials, namely 40-70% of a polyurethane resin, 10-50% of a high-acidity polyester, 5-10% of aluminum hydroxide and 0.5-1% of aids; preparing the solvent-resistant scrubbing powder coating from raw materials, namely 40-60% of the modified polyester, 10-30% of a curing agent, 0.5-1% of the aids and 10-30% of packing. By adopting the preparation method, the modified polyester is firstly synthesized, two resins are mixed according to a certain ratio, the catalyst and the filler, namely the aluminum hydroxide, are further added, and the solvent-resistant scrubbing powder coating is prepared through mixing, extrusion and crushing; due to adoption of the specific solvent-resistant aids, the curing cross-linking density of a powder product can be increased, the surface density and the hardness can be improved, and excellent solvent-resistant properties can be achieved.

Description

technical field [0001] The invention relates to the technical field of preparation of chemical coating materials, in particular to a wiping powder coating and a preparation method thereof. Background technique [0002] Powder coatings are widely used in household appliances, furniture, industrial cabinets, construction machinery, automobile industry, fitness equipment and medical equipment. However, most traditional powder coatings have poor surface leveling performance, low gloss, or poor outdoor weather resistance. , Corrosion resistance, poor resistance to organic solvents and other shortcomings. In recent years, polyurethane materials have been more and more widely used, and coatings made of polyurethane have outstanding advantages in terms of corrosion resistance, sealing, and corrosion inhibition. At present, domestic powder coatings are more and more widely used. Some special functional powders require solvent resistance (acetone, alcohol, thinner and other organic s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D167/00C09D5/03C09D7/61
CPCC08K2003/2227C08K2003/2241C08K2003/3045C08L2205/025C08L2205/03C09D5/033C09D175/04C08L67/00C08K13/02C08K3/22C08K3/30
Inventor 龚刚
Owner 广东合邦新型粉末涂料科技股份有限公司
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