Multi-layer composite steel plate with visible-light response photocatalysis function and manufacturing method thereof

A multi-layer composite and photocatalytic technology, which is applied in chemical instruments and methods, separation methods, botanical equipment and methods, etc., can solve the problems that the long-term beauty of color steel plates cannot be guaranteed, and achieve the elimination of organic pollutants and increase the aesthetics , cheap effect

Inactive Publication Date: 2019-08-09
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Aiming at the problem that the existing metal-coated color steel plate cannot produce photocatalytic effect under visible light, and cannot guarantee the long-term beauty of the color steel plate, the purpose of the present invention is to provide a kind of photocatalytic function specifically related to a visible light response, Multi-layer composite steel plate capable of purifying air and sterilizing, eliminating nitrogen oxides, organic matter and bacteria in the air and its manufacturing method

Method used

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  • Multi-layer composite steel plate with visible-light response photocatalysis function and manufacturing method thereof
  • Multi-layer composite steel plate with visible-light response photocatalysis function and manufacturing method thereof
  • Multi-layer composite steel plate with visible-light response photocatalysis function and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Step 1: Use a hot-dip galvanized steel sheet with a thickness of 0.5mm (zinc adhesion is 60g / m 2 , surface roughness Ra is 0.8 μ m ~ 1.2 μ m) as the substrate 1, the chromate treatment solution is applied by roller coating with an adhesion amount of 30 mg / m 2 The surface is treated (in terms of chromium) to form a corrosion-resistant film 2 .

[0057] Step 2: adopt the method for vertical roller coating, apply the coating (a- 1. Main ingredients: 20% to 40% polyurethane resin, 10% zinc butyrate antirust pigment and 10% to 15% ethylene glycol butyl ether, and the balance is xylene and butyl acetate) to be applied to galvanized steel by roller coating On the steel plate, the coated coating is then baked in a circulating hot air oven at 280°C for 30s to form a primer layer 3 with a thickness of 5 μm. The main film-forming resin of the primer layer 3 is preferably a polyurethane resin thermosetting resin, which is to improve the flexibility of the primer layer 3 and is co...

Embodiment 2

[0062] Step 1: Same as Example 1.

[0063] Step 2: Same as Example 1.

[0064] Step 3: the main components (the balance is xylene and butyl acetate) containing 20% ​​polyurethane resin, 6% indigo pigment, 10% amino resin, 10% butyl acetate, and about 5% filler The organic solvent-based visual beautification paint (b-2) was coated on the above-mentioned primer coat 3 and heated at 380° C. for 25 s to form a visual beautification coat 4 .

[0065] Step 4: Same as Example 1.

[0066] Step 5: Same as Example 1.

Embodiment 3

[0068] Step 1: Same as Example 1.

[0069] Step 2: Same as Example 1.

[0070] Step 3: Same as Example 1.

[0071] Step 4: Same as Example 1.

[0072] Step 5: On the photodegradable shielding coating, the content of visible light-responsive nano-scale titanium dioxide photocatalytic particles is 5%, the mass percentage of anionic phosphate ester type dispersant is 0.5%, polytetrafluoroethylene particles (diameter 3-10 μm, content 10%), the mass percentage of silica sol is 7% and the balance is the aqueous solution (d-1) of deionized water with the adhesion amount being: 1000 mg / m 2 (with TiO 2 According to the method of roll coating, it is applied by a roller coating process, and heated at 350°C for 10 seconds to form a photocatalytic coating 6.

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Abstract

The invention discloses a multi-layer composite steel plate with a visible-light response photocatalysis function and a manufacturing method thereof, and belongs to the technical field of environmental-friendly new materials. The multi-layer composite steel plate with the visible-light response photocatalysis function comprises a base material, an anti-corrosion leather film, a prime coat, a visual beautifying coating, a light degradation shielding layer and a visible-light response photocatalysis coating; and by adopting the continuous manufacturing method, a metal-coating steel plate is adopted as the base material, and the anti-corrosion leather film, the prime coat, the visual beautifying coating, the light degradation shielding layer and the visible-light response photocatalysis coating are sequentially deposited on at least one surface of the base material. The color steel plate provided by the invention can produce photocatalysis efficacy under the visible-light response, can beused for purifying air, sterilizing and eliminating nitric oxide, organic matters and bacteria in the air, and has the advantages of capability of utilizing sunlight, low energy consumption, no needof extraly adding reactants and the like.

Description

technical field [0001] The invention belongs to the technical field of new environmental protection materials, and specifically relates to a multi-layer composite steel plate which responds to visible light, has photocatalytic function, and can eliminate nitrogen oxides, organic matter and bacteria in the air, and a manufacturing method thereof. Background technique [0002] The results of the study showed that nitrogen oxides (NO x ) emission is the internal cause of severe smog: NO x After being discharged into the atmosphere, due to the low valence state, under the oxidation of free radicals in the atmosphere, complex chemical reactions occur to generate high-valence nitrates. Therefore, NO x It is the key pollutant that enhances the oxidation of the atmosphere and is also the main component of PM2.5 (smog). [0003] Photocatalysts, especially titanium dioxide, have attracted the attention of those skilled in the art due to their unique properties in recent years. Ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D7/00B05D5/06B05D3/04B01D53/86B01D53/56B01D53/44B01J27/24A01N59/16A01P3/00A01P1/00
CPCA01N59/16B01D53/44B01D53/56B01D53/86B01J27/24B05D3/0413B05D5/061B05D7/14B05D7/586B05D2202/10B05D2202/20B05D2202/25B05D2202/30B05D2350/20B05D2350/60B05D2451/00B05D2503/00B05D2504/00B05D2506/10B05D2508/00B05D2601/22B05D2601/24B05D2602/00B05D2420/02B05D2425/04B05D2420/03B05D2425/03B05D2420/04B05D2425/02B05D2501/10B05D2506/15B05D2420/05B05D2425/01Y02C20/30Y02P70/10
Inventor 柴立涛赵云龙王滕杨兴亮张建刘劼张百勇李山
Owner MAANSHAN IRON & STEEL CO LTD
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