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a rubber coating

A rubber coating and line type technology, applied in the field of coatings, can solve the problems of unsuitable low-loss roller coating method, poor coating processability, non-environmental protection, etc., and achieve flexible and convenient construction methods, scratch resistance and self-healing, shortening Effect of Baking Time

Active Publication Date: 2016-09-21
广东新威新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing rubber coatings are two-component, which are prepared by polyurethane paint and HDI curing agent. Two-component rubber coatings have the following unsolved problems: before each use, the paint can only be adjusted in small batches in proportion , it must be used within 1-4 hours after the paint is mixed, otherwise it will be solidified and scrapped, which will cause inconvenience to the construction; it is only suitable for spraying with large losses, not for roller coatings with low losses; it must be used at 60-80 °C Bake for 30 minutes to 24 hours to fully cure. The curing cycle is long, the curing efficiency is low, and the curing cost is high; using organic tin as a catalyst does not meet the requirements of environmental protection; the coating is thick, generally above 30 microns, and the coating process Poor performance and high cost

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of rubber paint that present embodiment provides, by mass percentage, comprises following component:

[0031]

[0032] Among them, the linear saturated polyester resin is polymerized from 1,6-hexanediol and 1,6-hexanedioic acid, and the molar ratio of 1,6-hexanediol and 1,6-hexanedioic acid is 1:1. The average relative molecular mass of linear saturated polyester resin is 200,000. Blocked polyisocyanate is a polymer produced by the reaction of polyisocyanate and ethylene glycol monobutyl ether, in which polyisocyanate is composed of toluene diisocyanate, diphenylmethane diisocyanate and 1,6-hexamethylene diisocyanate in a molar ratio of 1:1 : 1 addition, the average relative molecular mass of blocked polyisocyanate is 100,000, and the median particle size of talcum powder is 10 μm.

Embodiment 2

[0034] A kind of rubber paint that present embodiment provides, by mass percentage, comprises following component:

[0035]

[0036] Among them, the linear saturated polyester resin is polymerized by 1,6-hexanediol and 1,5-glutaric acid, and the molar ratio of 1,6-hexanediol and 1,5-glutaric acid is 1.1:1, The average relative molecular mass of linear saturated polyester resin is 250,000. Blocked polyisocyanate is a polymer produced by the reaction of polyisocyanate and caprolactam, in which polyisocyanate is obtained by adding toluene diisocyanate and 1,6-hexamethylene diisocyanate in a molar ratio of 1:1. The average relative molecular mass of blocked polyisocyanate is 120,000. The median particle size of the matte powder is 5 μm.

Embodiment 3

[0038] A kind of rubber paint that present embodiment provides, by mass percentage, comprises following component:

[0039]

[0040] Among them, the linear saturated polyester resin is polymerized from 1,5-pentanediol and 1,4-butanedioic acid, and the molar ratio of 1,5-pentanediol and 1,4-butanedioic acid is 1:1.1, The average relative molecular mass of linear saturated polyester resin is 150,000. Blocked polyisocyanate is a polymer produced by the reaction of polyisocyanate and imidazole, wherein polyisocyanate is obtained by adding diphenylmethane diisocyanate and 1,6-hexamethylene diisocyanate in a molar ratio of 1:1. The average relative molecular mass of blocked polyisocyanate is 70,000. The wax powder has a median particle size of 1 μm.

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Abstract

The invention belongs to the technical field of coatings, and in particular relates to a rubber coating. The rubber coating comprises the following components in percentage by mass: 35-65% of linear saturated polyester resin, 10-20% of enclosed polyisocyanate, 5-20% of a solvent, 0-10% of phenyl amino resin, 0-3% of a hand feeling auxiliary agent, 0-8% of a matte auxiliary agent and 0-3% of an organic bismuth catalyst. Compared with the prior art, on the premise that a coating film has excellent tactility, wear resistance, skid resistance, scratch resistance and good self restoration of the existing rubber coating, the rubber coating provided by the invention adopts a single-component curing formula, so that the storage time of the coating can be prolonged to meet a requirement of mass production, the baking time can be shortened to ensure that the curing efficiency can be greatly improved, and a roller coating manner is adopted for construction so as to reduce loss; besides, an environment-friendly catalyst is used for replacing organic tin to serve as a catalyst, so that the rubber coating provided by the invention can be well adapted to an environmental protection requirement.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a single-component, environment-friendly and high-performance rubber coating. Background technique [0002] Rubber paint, also known as rubber paint, rubber paint or hand paint, has been widely used in various plastic electronics, metal and wood surfaces, such as telescopes, telephones, Mobile phone casing, MP3, decorative box, game console handle, car interior decoration, microphone, cosmetic brush handle, hair dryer, camera, mouse and computer keyboard and other products. The rubber coating is sprayed on the surface of the object, and it is in a matte or semi-matte state. It feels very delicate and smooth, and has an elegant and dignified appearance. It has excellent scratch resistance, weather resistance, and abrasion resistance. [0003] However, most of the existing rubber coatings are two-component, prepared from polyurethane paint and HDI curing agent. Two-component rubb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/06C09D7/12
CPCC08L2205/03C09D175/06C08L61/20C08K3/34C08K5/05C08K5/07C08L91/06C08K5/101C08K5/103
Inventor 李治威冯行成盛长根
Owner 广东新威新材料技术有限公司
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