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Silicone nonstick paint composition used in elevator or escalator

A non-stick coating and silicone technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of poor metal adhesion, low impact resistance and hardness, and can not meet the needs of non-stick coatings, and achieve good adhesion and long service life Long, improve the effect of wear resistance

Active Publication Date: 2014-09-10
JIANGSU TONGLI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal adhesion of acrylic modified silicone resin is poor, which cannot meet the requirements of non-stick coatings; the impact resistance and hardness of epoxy resin modified silicone resin are low, which cannot meet the requirements of non-stick coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]The composition of the silicone non-stick coating composition of the present embodiment is as follows: "KR255" silicone resin of Shin-Etsu Corporation: 62.5wt%, methyltrimethoxysilane: 7.8wt%, nano-silica: 16.5wt%, two Valence acid ester: 9.5wt%, methyl silicone oil (slip agent): 1.0wt%, nonionic surfactant GSK-588: 1.0wt% and the balance of polyacrylate (dispersant). Exemplarily, the substrate is 304 stainless steel (of course, the paint is effective for other iron-based metals, aluminum-based metals, nickel-based metals, etc.), and the stainless steel substrate is washed and dried with alkali, and then sprayed on the stainless steel substrate by air spraying. The silicone non-stick coating composition is sprayed, and the spraying process parameters are as follows: a spray gun diameter of 1.0 mm, a spraying pressure of 0.2-0.3 MPa, a spraying distance of 20-30 cm, and a spraying thickness of 20 μm. After the spraying is completed, bake the non-stick coating on the surfa...

Embodiment 2

[0026] The composition of the silicone non-stick coating composition of the present embodiment is as follows: "KR255" silicone resin of Shin-Etsu Corporation: 70.5wt%, vinylmethyldiethoxysilane: 4.1wt%, nano-silica: 12.8wt% %, dibasic acid ester: 9.7wt%, methyl silicone oil (slip agent): 1.0wt%, non-ionic surfactant GSK-588: 1.0wt% and the balance of polyacrylate (dispersant). Exemplarily, the substrate is 304 stainless steel. After the stainless steel substrate is degreased with alkali and washed and dried, the silicone non-stick coating composition is sprayed on the stainless steel substrate by air spraying. The spraying process parameters are: the diameter of the spray gun is 1.0 mm, the spraying pressure is 0.2-0.3MPa, the spraying distance is 20-30cm, and the spraying thickness is 20μm. After the spraying is completed, bake the non-stick coating on the surface at a temperature of 280°C for 10 minutes.

Embodiment 3

[0028] Shin-Etsu's "KR255" silicone resin: 65.2wt%, dimethyldimethoxysilane: 6.8wt%, nano-silica: 14.8wt%, dibasic acid ester: 10.2wt%, methyl silicone oil (slip Cooling agent): 1.0wt%, non-ionic surfactant GSK-588: 1.0wt% and the remainder of polyacrylate (dispersant). The substrate is 304 stainless steel. After the stainless steel substrate is degreased by alkali and cleaned and dried, the organic silicon non-stick coating composition is sprayed on the stainless steel substrate by air spraying. The spraying process parameters are: the diameter of the spray gun is 1.0mm, the spraying pressure 0.2-0.3MPa, the spraying distance is 20-30cm, and the spraying thickness is 20μm. After the spraying is completed, bake the non-stick coating on the surface at a temperature of 280°C for 10 minutes.

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PUM

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Abstract

The invention relates to a silicone nonstick paint composition used in an elevator or an escalator. The paint comprises the components of, by weight: 62.2-72.5% of silicone resin, 3.8-12.5% of a silane compound, 12.8-17.5% of nano-grade inorganic particles, and 8.7-13.5% of an organic solvent. According to the invention, silicone resin and the silane compound are adopted as base components, and the prepared coating has excellent wear resistance, corrosion resistance, non-stick performance, high hardness, and good adhesion. The composition does not contain polytetrafluoroethylene, such that the composition is environment-friendly and safe. When the silicone nonstick paint composition provided by the invention is used on a stainless steel elevator surface or a carbon steel elevator surface, the wear resistance and corrosion resistance of the material can be improved, and the service life of the coating is long. The coating is not adhered to aqueous or oily substances, and does not cause stains. The paint has excellent non-stick performance.

Description

technical field [0001] The present invention relates to an organic coating composition, more specifically, the present invention relates to a non-stick coating with wear resistance and anticorrosion performance for metal surfaces. Background technique [0002] Non-stick coatings have the advantages of low surface energy and high heat resistance, and are mainly coated on metal surfaces such as aluminum, cast iron, and stainless steel to play functional roles such as protection, decoration, heat resistance, non-stick, and easy cleaning. The long-term use temperature of non-stick coatings is between 180°C and 250°C, so the selected resin should have the characteristics of strong adhesion, excellent heat resistance, high hardness, and good mechanical properties. [0003] The development of non-stick coatings has a history of more than 30 years so far. Although a variety of coatings for coating non-stick coatings have been developed for more than 30 years, most of their main comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D4/00C09D5/08C09D7/12
Inventor 李国平
Owner JIANGSU TONGLI MACHINERY
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