Method for coating non-adhesive coating on surface of elevator or staircase and non-adhesive coating

A technology of non-stick coating and non-stick coating, which is applied in the direction of surface coating liquid devices, coatings, special surfaces, etc., which can solve the problems of poor metal adhesion, unsatisfactory non-stick coating, low impact resistance and low hardness and other problems, to achieve the effect of good adhesion, long service life and excellent wear resistance

Active Publication Date: 2014-04-16
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

[0025]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

[0027] The composition of the silicone non-stick coating composition of the present embodiment is as follows:

[0028] Shin-Etsu's "KR217" silicone resin: 70.5wt%, vinyltrimethoxysilane: 4.1wt%, nano-silica: 11.8wt%, dibasic acid ester: 9.7wt%, methyl silicone oil (slip agent ): 1.0wt%, nonionic surfactant GSK-588: 1.0wt% and the rest 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

[0030] The composition of the silicone non-stick coating composition of the present embodiment is as follows: "KR255" silicone resin of Shin-Etsu Corporation: 65.2wt%, γ-chloropropyltrimethoxysilane: 6.8wt%, nano silicon dioxide: 14.8wt %, dibasic acid ester: 10.2wt%, 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.

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Abstract

The invention relates to a method for coating a non-adhesive coating on surface of an elevator or a staircase. The non-adhesive coating is formed on the metal surface through coating and sintering processes. The organosilicone non-adhesive coating composition comprises the following components in percentage by weight: 62.2 to 72.5 percent of organosilicone resin, 3.8 to 12.5 percent of silane compound, 11.8 to 17.5 percent of nano inorganic particles and 8.7 to 13.5 percent of organic solvent. The non-adhesive coating prepared by the coating process has excellent wear resistance, corrosion resistance and non-adhesive property, is high in hardness and high in adhesive force and is applied to the surface of a skirt panel of the staircase; and the wear resistance and corrosion resistance of materials can be improved, the non-adhesive coating is not attached to waterborne or oily substances and has excellent non-adhesive characteristics, and no stain is remained.

Description

technical field [0001] The invention belongs to the technical field of metal surface coating, and more specifically, the invention relates to a method for coating a metal surface with a non-stick coating and the non-stick coating. 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): B05D7/14B05D3/02B05D3/10B05D5/02C09D183/04C09D7/12C09D5/00
Inventor 李国平
Owner JIANGSU TONGLI MACHINERY
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