Polyester reflection film as well as preparation method and application thereof

A reflective film, polyester technology, applied in chemical instruments and methods, photovoltaic power generation, electrical components, etc., can solve the problems of high production stability and low cost, and achieve good stiffness, strong wrinkle resistance, and low density. Effect

Active Publication Date: 2018-11-09
安徽思瑞盟新材料有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

And the production stability is high and the cost is low

Method used

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  • Polyester reflection film as well as preparation method and application thereof
  • Polyester reflection film as well as preparation method and application thereof
  • Polyester reflection film as well as preparation method and application thereof

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Embodiment 1

[0032] The preparation method of polyester reflective film of the present invention is made by following method:

[0033] The polyethylene terephthalate (trade name SB500, Yizheng Chemical Fiber System) of 72 parts by mass, 20 parts of rutile titanium dioxide white masterbatch (trade name S598, titanium dioxide content 60%, Shanghai Hongyu supply ) and 8 parts of silicone particle masterbatch (the particle size of the silicone particle in the masterbatch is 1um, the content is 50%), pre-crystallized at 160°C, and then dried at 180°C for 3 hours, then added to temperature In a single-screw extruder B at 270-280°C, a melt layer B is obtained;

[0034] At the same time, the mass parts are 10 parts of rutile titanium dioxide white masterbatch, 20 parts of barium sulfate white masterbatch (trade name MB41, wherein barium sulfate content is 60%, Shanghai Hongyu supplies), 1 part of organic silicon particle masterbatch material (silicone particle size is 5um, content 50%), 2 parts o...

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Abstract

The invention discloses a polyester reflection film. The polyester reflection film is of an AB double-layered film structure or an ABA three-layered film structure, wherein an A-layer film is preparedfrom the following components in parts by mass through mixing: 40 to 68 parts of polyethylene terephthalate, 7 to 35 parts of titanium dioxide master batch, 10 to 25 parts of barium sulfate master batch and 1 to 3 parts of organic silicon particle master batch; a B-layer film is prepared from the following components in parts by mass through mixing: 65 to 90 parts of the polyethylene terephthalate, 2 to 20 parts of the titanium dioxide master batch and 3 to 15 parts of the organic silicon particle master batch. The polyester reflection film is a white polyester reflection film and has the advantages of low density, high reflectivity, good stiffness and strong wrinkle resistance; the thickness of a thin film is greater than 50mum and less than 500mum and the density is 0.9 to 1.2g/cm<3>; the thin film can be suitable for requirements of a reflection film for a large-size liquid crystal display device on the flatness and he stiffness. High-temperature-resisting organic silicon particlescan be added into the polyester reflection film (a middle layer) to realize micro-foaming of a polyester thin film; the film can be stably formed and the preparation cost is low.

Description

technical field [0001] The invention relates to a polyester reflective film, and also relates to a preparation method of the polyester reflective film and its application on a backlight module of a liquid crystal display or a back plate of a solar cell, belonging to the technical field of film production. Background technique [0002] Most of the existing reflective films realize their functions by generating a large number of tiny bubbles inside the film to continuously reflect light at the interface of the bubbles. For example, Japan's Teijin Company prepares reflective films by adding large doses of barium sulfate, but due to the large amount of inorganic particles added, it is easy to cause poor production stability and relatively high costs; Japan's Toray Company adds amorphous Incompatible resins such as permanent cyclic olefin copolymer resin (abbreviated as COC) and polymethylpentene (abbreviated as TPX) are used to achieve foaming. However, due to the high processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/18B32B5/18B32B27/08H01L31/049
CPCB32B5/18B32B27/08B32B27/18B32B27/36H01L31/049Y02E10/50
Inventor 刘勇黄云崚臧晓鹏
Owner 安徽思瑞盟新材料有限公司
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