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Iron plastic composite material for household appliance and preparation method for iron plastic composite material

A composite material and home appliance technology, applied in the field of iron-plastic composite materials, can solve the problems of not meeting demand, affecting the environmental protection of home appliances, and low initial peel strength.

Active Publication Date: 2015-06-24
张家港保税区康得菲尔实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the bonding layers used in the existing film-coated iron plates are solvent-based heat-activated adhesives, including PVC glue, one-component polyurethane, two-component polyurethane, etc., and solvent thinners need to be added during the bonding process. , curing agent, colorant, etc., and then baked at high temperature to produce a large amount of harmful gas
Moreover, the iron plate coated in this way has a very low initial peel strength and needs to be cured at a constant temperature of 50 degrees, which consumes a lot of energy.
In addition, because the adhesive is liquid, air bubbles are likely to be generated during the film covering process, and there will be solvent residues in the composite material, which will affect the environmental protection of home appliances.
[0005] In addition, the film layer of the existing film-coated iron plate is very simple, and the hardness of the film layer is low, which cannot meet the needs of the current home appliances for appearance materials

Method used

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  • Iron plastic composite material for household appliance and preparation method for iron plastic composite material
  • Iron plastic composite material for household appliance and preparation method for iron plastic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Prepare a 25-micron transparent polyethylene terephthalate film with a width of 1400 mm and a length of 6000 m in advance.

[0054] Mix 20% polycarbonate polyurethane and 15% polyether polyurethane in proportion, stir in a mixer at a speed of 300 rpm for 5 minutes, add water to dilute, add 0.1% leveling agent, 0.5% substrate wetting agent, Continue stirring for 3 minutes, and finally add 7% polycarbodiimide crosslinking agent. Put the above emulsion into the rubber tank of the gravure full-width coating machine, set the strength of the corona machine to 5.5KVA before opening, set the speed to 30m / min, and use steam to dry in the oven at 120°C to form a hardened layer with a thickness of 6 microns.

[0055] Mix and stir two acrylic emulsions with 0.8% Tg=65°C and 0.5% Tg=-10°C, first add 30% ethanol solvent, the addition rate is about 20g / s and it needs to be added while stirring, the stirring rate is 300 rpm, After the addition of ethanol is completed, water is added, ...

Embodiment 2

[0060] Prepare a 25-micron transparent polyethylene terephthalate film with a width of 1400 mm and a length of 6000 m in advance.

[0061] Mix 20% polycarbonate polyurethane and 15% polyether polyurethane in proportion, stir in a mixer at a speed of 300 rpm for 5 minutes, add water to dilute, add 0.1% leveling agent, 0.5% substrate wetting agent, Continue stirring for 3 minutes, and finally add 7% polycarbodiimide crosslinking agent. Put the above emulsion into the rubber tank of the gravure full-width coating machine, set the strength of the corona machine to 5.5KVA before opening, set the speed to 30m / min, and use steam to dry in the oven at 120°C to form a hardened layer with a thickness of 6 microns.

[0062] Mix and stir the acrylic emulsion with 1.5% Tg=74°C and 0.4% Tg=-15°C, first add 24% ethanol solvent, the addition rate is about 20g / s and it needs to be added while stirring, the stirring rate is 300 rpm, and the ethanol Water was added after the addition was comple...

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Abstract

The invention relates to an iron plastic composite material for a household appliance and a preparation method for the iron plastic composite material. The composite material structurally comprises a hardened wear-resisting layer, a BOPET (biax orientation polyester) film substrate layer, a chemical modifying layer, a printing layer, a UV (ultraviolet) structure wiredrawing layer, an aluminum-coating layer, a bottom coating, a modified PE (polyethylene) layer, a tackifying layer, a polyester layer and an iron plate substrate from top to bottom in sequence, wherein the layers are tightly combined with one another. Through surface hardening, printing, wiredrawing and aluminum-coating, the iron plastic composite material achieves a glaring appearance which is fine in imitated metal wiredrawing degree, high in hardness, practical and wear-resisting; the hardened layer formed by polycarbonate polyurethane and polyether polyurethane can reach hardness higher than 3H; meanwhile, relatively good flexibility is kept so as to facilitate processing performances of a film and a relatively large space is provided for selecting film substrate thickness; moreover, the iron plastic composite material is thermally pressed and adhered by hot-melt type modified resin and an iron plate. The preparation method is environmentally friendly, simple to operate, and cost-saving.

Description

technical field [0001] The invention relates to an iron-plastic composite material, in particular to an iron-plastic composite material used on the surface of household appliances. Background technique [0002] A home appliance is not just a machine covered with a metal shell, it is a part of our life, home, and even memory. We care about the changes brought by home appliances to the quality of life, and even more about the impact of its appearance on our lives and memories. Sometimes, we are even willing to change the decoration layout of our home for a double-door refrigerator with brushed metal texture that we like. In most people's minds, the colorful appearance of home appliances has become a materialized expression of their own unique character and taste. At present, manufacturers in the market have a lot of publicity about the functions of home appliances, but in fact there is not much difference. Now the selection criteria for home appliances mainly focus on whethe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/09B32B15/18B32B27/02B32B27/40B32B27/32B32B7/02B32B33/00B32B37/06B32B37/10
Inventor 钟玉董子尧王慧荣
Owner 张家港保税区康得菲尔实业有限公司