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Coating for automobile sealing strip and preparation method thereof

A technology for automotive sealing strips and coatings, applied in epoxy resin coatings, antifouling/underwater coatings, polyurea/polyurethane coatings, etc. Effect of hardness, enhanced wear coefficient, excellent wear resistance

Active Publication Date: 2012-07-18
云南三恩汽车新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First, the combination of the flocking fluff layer and the sealing strip rubber is not tight enough. During use, the fluff fibers will fall off, causing air pollution and endangering the human body.
[0004] Second, since solvent-based coatings contain volatile solvents, organic solvents (VOC) such as toluene and xylene volatilize during use, causing pollution to the environment inside the car and endangering human health
[0005] Third, the storage time of the two-component coating is short, the coating operation is complicated, and the shelf life is short
At this time, the coating should maintain the original color without yellowing or falling off, while the existing solvent-based coatings cause yellowing of the coating due to the incomplete sealing of the isocyanate group in the curing agent isocyanate; the coating of the two-component coating is cured Uneven, prone to brittle cracking and falling off

Method used

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  • Coating for automobile sealing strip and preparation method thereof
  • Coating for automobile sealing strip and preparation method thereof

Examples

Experimental program
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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Please refer to figure 1 146.41g of polyurethane resin, 52.13g of silicone monomer polymerized emulsion resin, 83.07g of acrylic resin, 4.88g of dispersant, and 2.91g of ultraviolet absorber were added to the reaction kettle, and the mixture was stirred at a stirring speed of 1000r / min. Mix the materials for 20 minutes, wherein the dispersant and UV absorber need to be added linearly with stirring. The dispersant can be a copolymer solution with pigment adsorption groups or a high molecular weight block copolymer solution with pigment affinity groups. Such as BFK pigment special dispersant.

[0029] Then, 4.36 g of blocked isocyanate and 5 g of thickener were added, stirred and dispersed for 60 minutes. Wherein the thickener is added slowly with stirring, and the thickener can be carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl me...

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PUM

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Abstract

The invention discloses coating for an automobile sealing strip and a preparation method thereof. The coating comprises a film forming material, at least one curing agent, a plurality of auxiliaries, at least one packing and solvent. The film forming material comprises organic silicon polymer emulsion, epoxy resin and polyurethane. The curing agent is closed isocyanate. The auxiliaries include a dispersing agent, a wetting agent, a thickening agent, an antifoaming agent and an ultraviolet absorber, and the solvent is water. The coating for the automobile sealing strip has excellent abrasion-resistance, yellow degeneration resistance at high temperature, flexibility, pollution resistance, environmental friendliness, and is convenient to transport and use and easy to store.

Description

technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to a paint used for automobile sealing strips and a preparation method thereof. Background technique [0002] Automobile sealing strip is one of the important parts of the automobile. It has the functions of sound insulation, dustproof and shock absorption, and maintains and maintains a quiet, clean and comfortable environment in the automobile. Car sealing strip is also an important part of car decoration. The existing automobile sealing strip mainly uses flocking fluff layer, solvent-based coating and two-component coating as the wear-resistant coating of the sealing strip. Has the following disadvantages: [0003] First, the combination of the flocking fluff layer and the sealing strip rubber is not tight enough. During use, the fluff fibers will fall off, causing air pollution and endangering the human body. [0004] Second, since solvent-based coatings contain vola...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D183/04C09D133/00C09D163/00C09D5/16C09D7/12
Inventor 顾真贵
Owner 云南三恩汽车新材料有限公司
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