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Environment-friendly flexible matte polyester film for door plate and preparation method thereof

A polyester film, an environmentally friendly technology, applied in the field of environmentally friendly flexible matte polyester film for door panels and its preparation, can solve the problems of insufficient adhesion fastness, whitening of edges and corners, etc., and achieve scratch-resistant appearance effect and good appearance effect Effect

Active Publication Date: 2020-07-14
SHUYE ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems existing in the prior art, the present invention provides an environmentally friendly flexible matte polyester film for door panels, which is made of a specific material with a three-layer structure, has good flexibility, and overcomes the disadvantages of the polyester film during the molding process. Insufficient adhesion fastness at local locations, and at the same time solve the problem of whitening of edges and corners of PVC in the process of blister molding

Method used

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  • Environment-friendly flexible matte polyester film for door plate and preparation method thereof

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Embodiment 1

[0026] The flexible matt polyester film for the door panel described in embodiment 1 is prepared according to the following steps:

[0027] 1). The crystalline PET homopolymer, the PET copolymer modified with 1,4-cyclohexanedimethanol and 1,4-butanediol are mixed as the core material according to the mass ratio of 20%:80%. Pre-crystallization and drying treatment until the moisture content is below 100ppm, melting at 260-280°C, extruding with a single-screw extruder, and the extruded molten polymer passes through a pre-filter with a precision of 60 microns, a metering pump with a precision of 25 micron main filter, into the die;

[0028] Wherein, the preparation method of the PET copolymer modified with 1,4-cyclohexanedimethanol and 1,4-butanediol (melting point 235 degrees, intrinsic viscosity 0.8) is as follows: terephthalic acid, ethyl alcohol Diol, 1,4 cyclohexane glycol, 1,4-butanediol in mass ratio 55:15:10:20, carry out esterification reaction at pressure 0.1-0.15MPa, ...

Embodiment 2

[0037] The flexible matt polyester film for the door panel described in embodiment 2 is prepared according to the following steps:

[0038] 1). The crystalline PET homopolymer, the PET copolymer modified with 1,4-cyclohexanedimethanol and 1,4-butanediol are mixed as the core material according to the mass ratio of 20%:80%. Pre-crystallization and drying treatment until the moisture content is below 100ppm, melting at 260-280°C, extruding with a single-screw extruder, and the extruded molten polymer passes through a pre-filter with a precision of 60 microns, a metering pump, a precision 25 micron main filter, enters the die;

[0039] 2). Mix crystalline PET homopolymer (melting point 260 degrees, intrinsic viscosity 0.66) and micron inorganic modified crystalline PET copolymer (melting point 260 degrees, intrinsic viscosity 0.66) according to mass percentage 70%: 30% , as the raw material of the upper surface layer, after pre-crystallization and drying treatment to a moisture ...

Embodiment 3

[0047] The flexible matte polyester film for the door panel described in embodiment 3 is prepared according to the following steps:

[0048] 1). The crystalline PET homopolymer, the PET copolymer modified with 1,4-cyclohexanedimethanol and 1,4-butanediol are mixed as the core material according to the mass ratio of 20%:80%. Pre-crystallization and drying treatment until the moisture content is below 100ppm, melting at 260-280°C, extruding with a single-screw extruder, and the extruded molten polymer passes through a pre-filter with a precision of 60 microns, a metering pump, a precision 25 micron main filter, enters the die;

[0049] 2). Mix crystalline PET homopolymer (melting point 260 degrees, intrinsic viscosity 0.66) and crystalline PET copolymer modified by micron inorganic substances (melting point 260 degrees, intrinsic viscosity 0.66) according to mass percentage 75%: 25% , as the raw material of the upper surface layer, after pre-crystallization and drying treatment...

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Abstract

The invention discloses an environment-friendly flexible matte polyester film for a door plate and a preparation method of the environment-friendly flexible matte polyester film. The environment-friendly flexible matte polyester film for the door plate comprises a core layer, an upper surface layer compounded on the upper surface of the core layer, and a lower surface layer compounded on the lowersurface of the core layer, wherein the core layer is prepared from a crystalline PET homopolymer, 1,4-cyclohexanedimethanol and a PET copolymer modified by 1,4-butanediol. The flexible matte polyester film with the three-layer structure, which is prepared from a specific material, is good in flexibility, the problem of insufficient adhesion fastness of local positions of the polyester film in a mold pressing process is solved, the problem of whitening of corner angles of PVC in a blister mold pressing process is also solved, and the environment-friendly effect is good.

Description

technical field [0001] The invention belongs to the technical field of polymer films, and relates to an environment-friendly flexible matte polyester film for door panels and a preparation method thereof. Background technique [0002] The traditional door panel is a baking varnish board. The manufacturing process of the baking varnish board is to use density board as the base material, and the surface is baked at high temperature after spraying paint for many times. It is characterized by bright color, easy to shape, strong visual effect, very beautiful and fashionable, waterproof, strong anti-fouling ability, and easy to clean. The disadvantage is that it requires a high level of workmanship, a high scrap rate, high cost, and great environmental pollution. It must be carefully cared for when using it. It is afraid of bumps and scratches. Once damaged, it is difficult to repair and needs to be replaced as a whole. [0003] In view of the problems existing in traditional bak...

Claims

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Application Information

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IPC IPC(8): B32B27/18B32B27/06B32B27/36B29D7/01
CPCB32B27/08B32B27/18B32B27/36B29D7/01B32B2250/244B32B2307/408B32B2307/584B32B2601/00Y02E10/50
Inventor 林树光刘振董兴广冯敏妍林燕洁
Owner SHUYE ENVIRONMENTAL TECH CO LTD