Anti-reflection halogen color steel plate and manufacturing method thereof

A color steel plate, anti-halogenation technology, used in coatings, polyurea/polyurethane coatings, devices for coating liquids on surfaces, etc., can solve the problems of high cost, low efficiency, low output, etc. Production cost reduction and less environmental damage

Active Publication Date: 2020-08-18
扬子江新型材料(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy to find such phenomenon after disassembling the replaced sandwich panel
[0004] Studies have shown that superhydrophobic surfaces have good performance in metal anti-corrosion and anti-halogen reversion, but the currently disclosed color steel products with superhydrophobic coating structures and their manufacturing processes are expensive and complicated, and the production cycle is usually more than 24 hours. low efficiency
The preparation of superhydrophobic surfaces and hydrophobic surfaces by stencil printing is one of the simple, effective and large-scale replicable preparation methods, and it is becoming an important method for the practical preparation of superhydrophobic materials, but the disadvantages are low output and high cost.

Method used

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  • Anti-reflection halogen color steel plate and manufacturing method thereof
  • Anti-reflection halogen color steel plate and manufacturing method thereof
  • Anti-reflection halogen color steel plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the anti-reflection halogen color steel plate includes a hydrophobic layer 1 , a back coat 2 , a substrate 3 and a top coat 4 .

[0025] The material used for the substrate 3 is galvanized steel sheet.

[0026] 1) Degrease the galvanized steel sheet with an alkaline degreasing spray agent. The main components of the spray agent are 0.1mol / L sodium hydroxide and a surfactant. The bath temperature is 50°C; the spray pressure is 2.0kg / cm2 ; The effective spraying time is 10 seconds, wash with hot water at 50°C and dry with hot air.

[0027] 2) Coating a fluorocarbon paint with a thickness of 20 μm on the upper surface of the cleaned galvanized steel sheet, and drying to obtain a top coat.

[0028] 3) At a temperature of 60° C. and 500 r / min stirring conditions, 65 wt % of polyurethane resin, 3 wt % of liquid paraffin, 12 wt % of butanone, 3 wt % of hpmc hydroxypropyl methylcellulose, 2 wt % of organically modified montmorillonite, 1wt% of modi...

Embodiment 2

[0034] The following table is the color steel plate with super-hydrophobic surface prepared by DX51D+Z color steel plate, electrospinning method and the anti-reflection halogen color steel plate prepared in Example 1, and the anti-reflection halogen color steel plate in the present invention. On the basis of the manufacturing method, the color steel plate made in the case of a single variable; the above color steel plate is placed at an inclination angle of 20 degrees, and the surface of the hydrophobic coating is subjected to a 6h / time saturated magnesium chloride solution spray test. , 15, 30, 100 days observed corrosion resistance results.

[0035]

[0036] When the brine phenomenon occurs, the brine composition formed is mainly magnesium chloride. This experiment simulates the extreme anti-halogen phenomenon. It can be seen from the above table that the anti-halogen color steel plate made by the present invention has significantly better anti-halogen characteristics than...

Embodiment 3

[0039] The following table is the color steel plate made by using the single variable method for the coating composition used in the back coating on the basis of the manufacturing method of the anti-halogen color steel plate of the present invention under the indoor environment; the prepared color steel plate is placed at an inclination angle of 20 degrees , the surface of its hydrophobic coating was sprayed with saturated magnesium chloride solution for 6h / time, and the corrosion resistance results were observed on the 1st, 15th, 30th, and 100th day of the experiment.

[0040]

[0041] Studies have shown that using acetic anhydride and benzyl alcohol to hydrophobize gelatin for acetylation and esterification reactions respectively, the gelatin after modification has enhanced hydrophobicity, is insoluble in water at room temperature, and the degradation rate is greatly slowed down. The sex, elasticity and plasticity are stronger than the original gelatin glue.

[0042] It c...

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Abstract

The invention relates to an anti-efflorescent color steel plate which comprises a hydrophobic layer, a back coating layer, a substrate and a face coating layer from top to bottom, wherein the back coating layer is prepared from paint ingredients of 65 to 70wt% of polyurethane resin, 2 to 3wt% of liquid paraffin, 12 to 15wt% of butanone, 2 to 3wt% of hpmc (hydroxypropyl methyl cellulose), 1 to 2wt%of organic modified montmorillonoid, 0.5 to 1wt% of modified hydrogenated castor oil, 2 to 3wt% of defoamer, the defined amount of pH value regulator, 4 to 6wt% of isophorone diamine, 1 to 2wt% of polytetrafluoroethylene powder and 6 to 7wt% of hydrophobic modified gelatin; the hydrophobic layer is prepared by a stencil printing method; by means of existence of the hydrophobic layer, existence probability and time of brine and chlorate on the surface of the steel plate can be reduced when an efflorescence phenomenon happens; thus, an effect of protecting the color steel plate is achieved, andservice life of the color steel plate in the environment in which efflorescence is prone to happening is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of color steel plates, in particular to an anti-reflection halogen color steel plate and a manufacturing method thereof. Background technique [0002] Color steel plate is color coated steel plate, which is based on cold rolled steel plate and galvanized steel plate, after surface pretreatment (degreasing, cleaning, chemical conversion treatment), coating with continuous method (roller coating method), after baking Products prepared by roasting and cooling. The color steel plate will contain various interlayers according to its use. Among them, the glass magnesium board is used in the interlayer of the purified color steel plate, which can increase the rigidity of the sandwich plate and play the role of heat preservation and fire prevention. Glass magnesium board, commonly known as magnesium oxide board, is a ternary system of magnesium oxide, magnesium chloride and water, which is made by configuring and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/65C09D7/62C09D7/63B05D3/06B05D3/10B05D3/12B05D7/00B05D7/14
CPCB05D3/067B05D3/102B05D3/12B05D7/14B05D7/586C08L2205/035C09D175/04C08L91/06C08L1/284C08L91/00C08L27/18C08L89/00C08K3/346C08K5/17
Inventor 杨建仁许曲锋周丹张林元
Owner 扬子江新型材料(苏州)有限公司
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