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Pet film for lamination and compounding of home improvement building materials and preparation method thereof

A building material layer and home decoration technology, applied in the direction of coating, epoxy resin coating, etc., can solve the problems of product quality fluctuation, organic solvent volatilization, inconvenient use, etc., to improve interlayer adhesion, improve performance, improve durability The effect of high temperature and high humidity

Active Publication Date: 2022-05-17
常州勤邦新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The boards used in the home improvement industry are usually decorated by spraying in the past. This method mainly has the following disadvantages: 1. The appearance decoration has limitations, and special patterns cannot be realized. It is difficult to produce flawless high-gloss and high-fullness boards. On the one hand, spraying will cause a large amount of organic solvents to volatilize into the atmosphere, the utilization rate of sprayed materials is not high, and overspraying will lead to waste of materials and environmental pollution
However, the above-mentioned requirements cannot be met by corona treatment on the surface of PET film. Even if the pre-coated film currently on the market is used, there is a problem of insufficient broadness of use, resulting in inconvenient use and fluctuations in product quality.

Method used

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  • Pet film for lamination and compounding of home improvement building materials and preparation method thereof
  • Pet film for lamination and compounding of home improvement building materials and preparation method thereof
  • Pet film for lamination and compounding of home improvement building materials and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0044] The preparation method of WR-01:

[0045] The water-based resin WR-01 in the present invention is mixed evenly by 70% self-made hydrophilic acrylic resin shell resin and 30% hydrophobic core layer resin with double bond functional groups at the end group, and then add the total mass of core layer and shell layer resin Neutralize with 7% N,N dimethylethanolamine, add deionized water and disperse at high speed to obtain WR-01, a water-based polymer resin with a solid content of 25% and high antireflection and adhesion enhancement.

[0046] The homemade hydrophilic acrylic resin shell resin in the present invention is preferably 75%, if the addition is too much less than 70%, the hydrophilicity of the resin obtained will gradually deteriorate, resulting in poor workability, if the addition is too much than 70% , the hydrophilicity of the obtained resin gradually becomes better, and the water resistance of the final coating becomes worse.

[0047] In the present invention,...

Embodiment 1

[0068] Water-based resin WR-01 40%

[0069] Deionized water 59.5%

[0070] Water-based wetting and leveling agent 604 0.5%

[0071] Its preparation method comprises the following steps:

[0072] Add water-based polymer resin WR-01, deionized water, and water-based wetting and leveling agent 604 in sequence, stir and disperse evenly, filter to remove impurities and foam. Before coating, add carbodiimide cross-linking agent CX-300 with 5% by mass of water-based resin WR-01, and dilute with water to a solid content of 10% to obtain PET online coating solution.

[0073] Coat the above-prepared PET online coating solution on a 250μ transparent PET base film with a 3μ wire bar, and dry it at 230°C for 30 seconds to obtain a pretreatment layer with a dry film thickness of about 50nm. Cool to room temperature for performance Test, see Table 1 for details.

[0074] Each embodiment in the present invention is coated on one side of the PET base film, and can also be coated on both si...

Embodiment 2

[0076] Water-based resin WR-01 40%

[0077] Deionized water 59.5%

[0078] Water-based wetting and leveling agent 604 0.5%

[0079] Add the above ratio of water-based polymer resin WR-01, deionized, water-based wetting and leveling agent 604 in sequence, stir and disperse evenly, filter to remove impurities and foam. Add water-based amino resin CYMEL 385 with 5% water-based resin WR-01 mass before coating, and dilute with water to a solid content of 10% to obtain PET online coating solution.

[0080] Coat the above-prepared PET online coating solution on a 250μ transparent PET base film with a 3μ wire bar, and dry it at 230°C for 30 seconds to obtain a pretreatment layer with a dry film thickness of about 50nm. Cool to room temperature for performance Test, see Table 1 for details.

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Abstract

The invention belongs to the technical field of PET films, and specifically relates to a PET film for laminating composite home decoration and building materials and a preparation method thereof; it includes a transparent PET base film and a pre-coating layer. The mass percentage of the pre-coating layer is as follows: water-based resin WR‑01 30~40%; deionized water 60~70%; water-based wetting and leveling agent 0.1~0.5%; the water-based resin WR‑01 is composed of hydrophilic acrylic shell resin and end groups with double bond functional groups The hydrophobic core layer resin is prepared; in the present invention, the core-shell design of the polymer material used in the online coating liquid is used. The outer shell uses trifluoroethyl methacrylate with a lower refractive index to improve the anti-reflection property of the pre-coating. The functional groups containing double bonds are introduced into the layer and their activity is controlled so that the coated film remains stable when stored at room temperature. The pretreatment layer and the upper layer of solvent-free UV glue are integrated and synchronously cured during curing to improve inter-layer adhesion and high temperature and humidity resistance.

Description

technical field [0001] The invention belongs to the technical field of PET films, and in particular relates to a PET film for lamination and compounding of home improvement building materials and a preparation method thereof. Background technique [0002] With the increasing demand for quality and environmental issues worldwide, the home improvement industry has put forward higher requirements for the quality and environmental protection of the raw materials used. [0003] The boards used in the home improvement industry are usually decorated by spraying in the past. This method mainly has the following disadvantages: 1. The appearance decoration has limitations, and special patterns cannot be realized. It is difficult to produce flawless high-gloss and high-fullness boards. On the one hand, spraying will cause a large amount of organic solvents to volatilize into the atmosphere, the utilization rate of sprayed materials is not high, and overspraying will lead to waste of ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/043C08J7/056C08L67/02C09D133/16C09D163/00
CPCC08J7/056C08J7/043C08J2367/02C08J2433/16C08J2463/00
Inventor 段旻刘勤学姚孝平孔云飞马强杨彩怡
Owner 常州勤邦新材料科技有限公司