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UV finish paint for wheel hub and preparation method of UV finish paint

A technology of topcoat and wheel hub, applied in the field of color topcoat, can solve the problems of brittleness and easy yellowing of topcoat, and achieve the effect of improving poor weather resistance, good workability, ensuring adhesion and various properties.

Inactive Publication Date: 2018-05-22
CHANGZHOU HUASHI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of existing topcoats that are brittle and easy to turn yellow, the invention provides a UV hub topcoat and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Prepare raw materials, UV-PU dual curing resin 40%, UV polyurethane acrylic resin 20%, deep curing photoinitiator 5%, aluminum powder 6%, functional monomer 8%, silicone substrate leveling wetting agent BYK333 0.5% , UV color paddle 8.5%, UV absorber 1.0%, HDI curing agent N3390 stock solution 6%, solvent 5%.

[0017] First, dissolve the photoinitiator with a solvent, soak the aluminum powder slurry with a solvent for later use, then put the UV resin, monomer, UV absorber, substrate wetting aid, etc. into the paint mixing tank, and control the stirring speed at 500 Stir for 10 minutes at -600 rpm, then add the dissolved photoinitiator and silver paste, stir for 10 minutes at 800 rpm, and use UV thinner to adjust the viscosity of Tu-4 viscosity cup for 60-80 seconds . The curing agent is added on the spray board, the paint is packaged in 2K, paint: curing agent = 100:6.

Embodiment 2

[0019] UV-PU dual curing resin 40%, UV polyurethane acrylic resin: 22%, deep curing photoinitiator 6%, aluminum powder 3%, functional monomer 10%, silicone substrate leveling wetting agent BYK333 0.5%, UV 5.5% color paddles of various colors, 1.0% UV absorber, 6% solvent, 6% stock solution of HDI curing agent N3390.

[0020] First, dissolve the photoinitiator with a solvent, soak the aluminum powder slurry with a solvent for later use, then put the UV resin, monomer, UV absorber, substrate wetting aid, etc. into the paint mixing tank, and control the stirring speed at 500 -600 rpm, stir for 10 minutes, then add the dissolved photoinitiator and silver paste, stir at 800 rpm for 10 minutes, use UV color paste for coloring, after the coloring is completed, use UV The thinner is adjusted to the viscosity of Tu-4 viscosity cup for 60-80 seconds. The curing agent is added on the spray board, the paint is packaged in 2K, paint: curing agent = 100:6.

Embodiment 3

[0022] UV-PU dual curing resin 47%, UV polyurethane acrylic resin: 20%, deep curing photoinitiator 4%, functional monomer 10%, organosilicon substrate leveling wetting agent BYK333 0.5%, UV absorber 1.5%, Solvent 6%, UV color paste 4%, HDI curing agent N3390 stock solution 7%.

[0023] First, dissolve the photoinitiator with a solvent, then put the UV resin, monomer, UV absorber, substrate wetting aid, etc. into the paint mixing tank, start the stirring speed and control it at 500-600 rpm, and stir for 5 minutes , and then stir the dissolved photoinitiator at 800 rpm for 10 minutes, and use UV thinner to adjust the viscosity of Tu-4 viscosity cup for 60-80 seconds. The curing agent is added on the spray board, the paint is packaged in 2K, paint: curing agent = 100:7.

[0024] In this invention, OH-NCO thermal curing is carried out in places where UV light cannot be irradiated, so as to avoid the problem of poor curing and stickiness of common UV coatings. At the same time, t...

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Abstract

The invention relates to the technical field of colored finish paint, in particular to UV finish paint for a wheel hub and a preparation method of the UV finish paint. The finish paint is composed ofthe following components: 50 to 55 wt% of UV-PU dual-cured resin, 15 to 30 wt% of UV-PUA resin, 4 to 6 wt% of deep-curing photoinitiator, and 4 to 8 wt% of aluminum powder, 7 to 15 wt% of functional monomer, 0.5 to 1 wt% of organic silicone substrate wetting and leveling agent, 4 to 20 wt% of UV color pastes, 1.5 to 2 wt% of UV absorber, 4 to 8wt% of solvent, and 5 to 7wt% of HDI curing agent. Theinvention has good application properties, can be used in combination with powder primers, powder varnishes and UV varnishes, and can ensure interlayer adhesion and various performance of films. TheUV finish paint has the characteristics that the aluminum powder is well arranged, the construction solid content reaches 60%, and the curing efficiency is high. The UV finish paint disclosed by the invention is environmentally friendly and energy-saving, and improves the poor weather resistance and poor impact resistance of ordinary UV coatings.

Description

technical field [0001] The invention relates to the technical field of color finish paint, in particular to a UV hub finish paint and a preparation method thereof. Background technique [0002] At this stage, UV coatings are only in the promotion and trial stage in the automotive aluminum wheel industry. Because the wheel hub is a different component, it is difficult to cure and has high performance requirements, and it is still being explored. At present, UV color paint is mainly used on flat workpieces. The color is mainly light-colored, with high hardness, brittle paint film and poor anti-yellowing performance. Contents of the invention [0003] In order to overcome the shortcomings of the existing topcoats which are brittle and easy to turn yellow, the invention provides a UV hub topcoat and a preparation method thereof. [0004] The technical solution adopted by the present invention to solve the technical problem is: a UV wheel hub finish, which is composed of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/14C09D7/61C09D7/63
CPCC09D175/04C08K2003/0812C08L2205/02C08L75/14C08K3/08
Inventor 刘志鹏黄勤力
Owner CHANGZHOU HUASHI CHEM
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