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One-component polyurethane skirt coating used for automotive

A one-component, polyurethane technology, used in polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor decoration, achieve high gloss retention, smooth surface, and improve light resistance.

Active Publication Date: 2011-09-14
GUANGDONG TGPM AUTOMOTIVE IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor decoration when the PVC anti-stone chip coating is used on the front part of the car, the lower part of the door and the threshold part, and especially provides a one-component polyurethane skirt coating for automobiles

Method used

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  • One-component polyurethane skirt coating used for automotive

Examples

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Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Weigh 36 parts of polyether polyol, 38 parts of blocked isocyanate, 2 parts of dibutyltin dilaurate and stir evenly at a high speed, then add 8 parts of fumed white carbon black, 8 parts of 4A molecular sieve, nanocarbonic acid 10 parts of calcium, 10 parts of heavy calcium carbonate, 10 parts of talcum powder, and 1 part of gray paste are mixed evenly in a kneader, and then further dispersed by a three-roll mill to obtain a one-component polyurethane skirt coating.

Embodiment 2

[0017] Example 2: Weigh 36 parts of polyester polyol, 38 parts of blocked isocyanate, 2 parts of dibutyltin dilaurate and stir evenly at high speed, then add 8 parts of fumed white carbon black, 8 parts of 4A molecular sieve, nanocarbonic acid 20 parts of calcium, 20 parts of heavy calcium carbonate, 20 parts of talcum powder, and 1 part of gray paste are mixed evenly in a kneader, and then further dispersed by a three-roll mill to obtain a one-component polyurethane skirt coating.

Embodiment 3

[0018] Embodiment 3: Take by weight 36 parts of polyether polyols, 38 parts of blocked isocyanate, 2 parts of stannous octoate and stir evenly at high speed, add 8 parts of fumed white carbon black, 8 parts of calcium oxide powder, nanometer calcium carbonate 30 parts, 30 parts of light calcium carbonate, 30 parts of talcum powder, and 2 parts of gray paste are mixed evenly in a kneader, and then further dispersed by a three-roll mill to obtain a one-component polyurethane skirt coating.

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Abstract

The invention relates to a one-component polyurethane skirt coating used for automotive. The coating is made by the following steps: uniformly mixing polyol, blocked isocyanate, catalyst, thixotropic agent, water absorbent, inorganic filler and pigment in a kneading machine, and further dispersing the mixture by a three-roller grinder. The coating solves the problem of poor decorative effect whenthe existing PVC (polyvinyl chloride) stone strike prevention material is applied in the front of a vehicle, at the lower part of a door, and at the threshold or other parts. The preparation method is easy, the use is convenient, the adhesion force is high, the resistance to stone strike is excellent and the storage stability is fine. The surface of the coating obtained is flat, fine and smooth and the gloss retention is greater than 85%. The coating is superior to the PVC stone strike prevention coating in tensile strength and elongation at break. The light fastness and weather fastness of the coating are greatly improved. Therefore, the coating can satisfy the decoration requirement of middle and top-grade cars for high skirt.

Description

technical field [0001] The invention relates to a coating for automobiles, in particular to a one-component polyurethane skirt coating for automobiles. Background technique [0002] Along with the development of my country's automobiles, especially off-road vehicles, station wagons and sedans to the high-grade direction, prolonging the service life, aesthetics and durability have become an important criterion for people to buy automobiles. However, when the car is running, the lower part of the car body, the bottom plate and the wheel cover are easily damaged by the splashed stones, causing the steel plate to be exposed and corroded. In order to solve this problem, the lower part of the car body can be protected with anti-stone impact paint to buffer the strong impact of stones on the car body. While improving the anti-corrosion ability of the bottom plate, it can also play the role of vibration reduction and noise reduction, and improve the safety of the car. service life....

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D175/08C09D175/06C09D7/12C08G18/80
Inventor 朱兴明高之香李士学王永明郭亚昆王艳芳张卫军吴子刚李建武
Owner GUANGDONG TGPM AUTOMOTIVE IND GRP
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