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Environmental protection type corrosion-resistant single-layer PET (Polyethylene Terephthalate) colored film-covered steel plate

A corrosion-resistant and environmentally friendly technology, used in coatings, layered products, anti-corrosion coatings, etc., can solve the problems of scratch resistance, high production cost, and the PVC layer is easily crushed, so as to improve scratch resistance, Enhanced corrosion resistance, good physical barrier effect

Active Publication Date: 2017-08-18
江阴海美金属新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the coated steel plates on the market are PVC coated steel plates and PVC+PET coated steel plates. The films used in these two types of coated steel plates are all related to PVC materials. The production cost of PVC is relatively high, and plasticizers are required. Plasticizers have been included in the RoHS Candidate Restricted Substances List, and the PVC layer is easily crushed and not scratch-resistant

Method used

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  • Environmental protection type corrosion-resistant single-layer PET (Polyethylene Terephthalate) colored film-covered steel plate
  • Environmental protection type corrosion-resistant single-layer PET (Polyethylene Terephthalate) colored film-covered steel plate
  • Environmental protection type corrosion-resistant single-layer PET (Polyethylene Terephthalate) colored film-covered steel plate

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Experimental program
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Embodiment 1～ Embodiment 4

[0043] Embodiment 1~Example 4 The preparation method of single-layer PET color coated steel plate is as follows:

[0044] Step 1: unwinding, cleaning and drying;

[0045] Step 2: passivate both sides of the steel plate substrate with a chromate chemical pretreatment solution with a concentration of 30 wt%, and dry to obtain a chemical coating;

[0046] Step 3: Coat the graphene-water-soluble silicone modified acrylic resin primer layer coating on the above chemical coating, with a thickness of 5-8 μm, and dry and solidify at 200°C to obtain graphene-water-soluble silicone modified Acrylic resin primer layer;

[0047] Step 4: On the graphene-water-soluble silicone modified acrylic resin primer layer on the front, apply a PET film with a polyurethane hot melt adhesive, and cool down;

[0048] Step 5: Paste a PE film with a thickness of 40 μm directly on the above primer layer to obtain the finished product.

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Abstract

The invention discloses an environmental protection type single-layer PET (Polyethylene Terephthalate) colored film-covered steel plate, which comprises a steel plate base material, wherein chemical coatings and graphene-water soluble organic silicon modified acrylic resin primer layers are stacked in sequence on both the front surface and the back surface of the steel plate base material; a PET film is pasted on the graphene-water soluble organic silicon modified acrylic resin primer layer of the front surface; afterwards, a PE (Polyethylene) protecting film is pasted on the PET film. A preparation process of the environment protection type single-layer PET colored film-covered steel plate comprises uncoiling, sewing, washing, oven-drying, chemical coating, the oven-drying, primer coating, oven-drying solidification, PET film covering, cooling and PE protecting film covering. According to the film-covered steel plate provided by the invention, PVC (Polyvinyl Chloride) layers are replaced by adopting graphene-water soluble organic silicon modified acrylic resin primer; the film-covered steel plate has decorative attractiveness, favorable corrosion resistance and physical and mechanical performance at the same time, and accords with the development direction of an environment-friendly material.

Description

technical field [0001] The invention relates to a color-coated steel plate, in particular to an environment-friendly corrosion-resistant single-layer PET color-coated steel plate, which belongs to the field of composite materials. Background technique [0002] At present, color-coated panels are generally based on coiled galvanized steel sheets, cold-rolled steel sheets, etc., for surface degreasing, cleaning, and chemical coating treatment. After forming a layer of chemical conversion film on the surface of the substrate, apply glue and film. into a product. Coated steel plate not only has the advantages of ordinary coated steel plate, but also can customize various patterns and patterns according to needs, and has been widely used in household appliances, construction, office, furniture and other industries. [0003] Most of the coated steel plates on the market are PVC coated steel plates and PVC+PET coated steel plates. The films used in these two types of coated steel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/08B32B27/32B32B15/18C09D133/00C09D5/10C09D7/12C23C22/05B21C37/02B29C63/02
CPCB21C37/02B29C63/02B32B15/18B32B27/08B32B27/32B32B27/36B32B2255/24B32B2255/26B32B2255/28B32B2307/712B32B2307/714C08K3/04C08K3/34C08K7/08C08K7/18C08K13/04C08K2201/014C09D5/106C09D7/61C09D7/63C09D7/70C09D133/00C23C22/05
Inventor 赵华
Owner 江阴海美金属新材料有限公司
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