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Optical film

An optical film and composite film technology, applied in optics, optical components, chemical instruments and methods, etc., can solve the problems of difficult to control flatness, low impact strength, poor dimensional stability, etc., to improve surface hardness and scratch resistance. The effect of wear resistance, improved fire resistance, and enhanced oxidation resistance

Active Publication Date: 2015-04-22
SICHUAN LONGHUA FILM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for the currently used optical materials, such as: glass is a brittle material, which has poor drop resistance, is easily damaged during use, has high production costs, difficult processing, and high loss rate; polycarbonate materials, although they have high strength and Modulus of elasticity, high impact strength, and wide temperature range, but its biggest disadvantage is low surface hardness and poor scratch resistance; polymethyl methacrylate has high optical transparency, good weather resistance, and high surface hardness , but its impact strength is low and processing is difficult; polyethylene terephthalate has better overall performance, but PET film generally needs to be processed by biaxial stretching process, the flatness is not easy to control, and due to the different orientation crystallization, It leads to serious warping and poor dimensional stability of PET materials during use

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the optical film includes a polymer material body 110, and a first composite film layer 120 is co-extruded on one side of the polymer material body 110. The first composite film layer 120 can play a good protective role and significantly improve The surface hardness and scratch resistance and wear resistance of optical films. The polymer material body 110 and the first composite film layer 120 are made by mixing engineering plastics with antioxidants, anti-ultraviolet absorbers, antistatic agents, conductive agents, flame retardants, and colorants. The engineering plastics include polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene Ether, polyphenylene sulfide. The antioxidant in the optical film enhances the anti-oxidation ability of the material and improves the service life of the optical film; the anti-ultraviolet absorber can prevent it from cra...

Embodiment 2

[0024] Such as figure 2 As shown, the optical film includes a polymer material body 110 , a first composite film layer 120 and a second composite film layer 130 . The polymer material body 110 is arranged between the first composite film layer 120 and the second composite film layer 130, wherein the polymer material body 110, the first composite film layer 120 and the second composite film layer 130 are composed of It is made by mixing engineering plastics with antioxidants, anti-ultraviolet absorbers, antistatic agents, conductive agents, flame retardants, and colorants. The engineering plastics include polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyimide, polyethylene terephthalate, polybutylene terephthalate, polyphenylene Ether, polyphenylene sulfide. The second composite film layer 130 added in the optical film has the same effect as the first composite film layer 120 in Embodiment 1, which can make both sides of the optical film possess excellent ...

Embodiment 3

[0026] Such as image 3 As shown, the optical film includes a polymer material body 110 , a first composite film layer 120 and a first coating structure 140 . The first composite film layer 120 is disposed between the polymer material body 110 and the first coating structure 140 .

[0027] The first coating structure 140 is made by mixing resin materials, antioxidants, anti-ultraviolet absorbers, antistatic agents, and colorants. The coating structure provided by the optical film can further significantly enhance the hardness and scratch resistance and wear resistance of the surface of the optical film to meet higher application requirements. Other parts, functions and effects of this embodiment are the same as those of Embodiment 1.

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Abstract

The invention discloses an optical film. The optical film comprises a polymer material body, wherein at least one surface of the polymer material body is provided with a composite film layer. The structure and composition of the optical film are optimized, so that the optical film has high forming processing performance and meets various forming processing requirements; the optical film has high surface hardness, wear resistance and scratch resistance, the surface of the optical film can be prevented from being scratched or damaged, and the surface hardness, scratch resistance and wear resistance of the optical film can be further improved by adding a coating structure; the optical film has high weather resistance and chemical resistance and meets various application requirements; and in addition, the optical film has high heat resistance and dimensional stability.

Description

technical field [0001] The invention relates to a film, in particular to an optical film. Background technique [0002] As a key upstream raw material, optical film has the characteristics of high surface finish, high light transmittance, low haze, and small thickness tolerance, which can fully meet the market's requirements for large-scale, thin, lightweight, high-precision, and consistent optical films. , Reliability and adaptability to assembly and other aspects, and can be widely used in many fields, such as: flat panel display, touch panel, window, reflective sign, household appliances, computer and telephone casing, auto parts, keyboard, cosmetic bottle, etc. . [0003] However, for the currently used optical materials, such as: glass is a brittle material, which has poor drop resistance, is easily damaged during use, has high production costs, difficult processing, and high loss rate; polycarbonate materials, although they have high strength and Modulus of elasticit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/14B32B27/00G02B1/10G02B1/16
Inventor 刁锐敏
Owner SICHUAN LONGHUA FILM CO LTD