Modified BOPP composite film, and preparation method of composite film and optical glue

A composite film and composite film technology, used in chemical instruments and methods, non-polymer organic compound adhesives, adhesives, etc., can solve the problems of inability to replicate the preparation method, quality cannot be guaranteed, supply shortage, etc., and achieve light transmission. Rate adjustable, strong performance, improve product quality, avoid discounts and imprints

Active Publication Date: 2019-01-22
DONGGUAN DINGLI FILM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, cellulose acetate film (TAC) is used as one of the main materials of polarizers. The technology is mastered by companies in the United States, Japan and South Korea. The cost is high, the supply is tight, and domestic companies cannot copy its advanced preparation methods in a short time. , the quality cannot be guaranteed, and finding a material that can replace cellulose acetate film (TAC) is an overcoming theme and direction for major companies and R&D institutions today.

Method used

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  • Modified BOPP composite film, and preparation method of composite film and optical glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: see figure 1 , the embodiment of the present invention provides a modified BOPP composite film, which includes an upper protective layer 1, a use layer 2, an upper optical adhesive layer 3, a BOPP composite film 4, a lower optical adhesive layer 5 and a lower protective layer 6, the upper The protective layer 1, the use layer 2, the upper optical adhesive layer 3, the BOPP composite film 4, the lower optical adhesive layer 5 and the lower protective layer 6 are stacked sequentially from top to bottom.

[0031] A kind of preparation method of BOPP composite membrane, it may further comprise the steps:

[0032](1) Prepare raw materials, the ratio of raw materials by weight is: 1300 parts of biaxially oriented polypropylene; 200 parts of carbon fiber; 150 parts of nylon fiber; 500 parts of solvent; 80 parts of electrostatic agent; The tensile strength is increased by 20-30%, meeting the composite effect and tensile stability of the BOPP composite film 4 and ...

Embodiment 2

[0044] Embodiment 2: The preparation method of a kind of modified BOPP composite film and its BOPP composite film and optical glue provided by this embodiment is basically consistent with implementation 1, the difference is:

[0045] The composition of the BOPP composite film 4 is as follows: 1000 parts of biaxially oriented polypropylene; 450 parts of carbon fiber; 100 parts of nylon fiber; 400 parts of solvent; 120 parts of electrostatic agent.

[0046] The composition of the optical glue is as follows: 1100 parts of ethyl acrylate; 250 parts of butyl methacrylate; 130 parts of epoxy resin; 400 parts of solvent; 50 parts of crosslinking agent; 100 parts of dispersant; 400 parts of conductive particles .

Embodiment 3

[0047] Embodiment 3: The preparation method of a kind of modified BOPP composite film and its BOPP composite film and optical glue provided by this embodiment is basically consistent with implementation 1, the difference is:

[0048] The composition of the BOPP composite film 4 is as follows: 1500 parts of biaxially oriented polypropylene; 350 parts of carbon fiber; 130 parts of nylon fiber; 600 parts of solvent; 50 parts of electrostatic agent.

[0049] The composition of the optical glue is as follows: 1500 parts of ethyl acrylate; 200 parts of butyl methacrylate; 100 parts of epoxy resin; 500 parts of solvent; 120 parts of crosslinking agent; 120 parts of dispersant; 650 parts of conductive particles .

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Abstract

The invention discloses a modified BOPP composite film, and a preparation method of the composite film and an optical glue. The modified BOPP composite film comprises an upper protective layer, an using layer, an upper optical glue layer, a BOPP composite film, a lower optical glue layer, and a lower protective layer which are overlapped successively from top to bottom. The modified BOPP compositefilm is skillful and reasonable in structure design; the light transmittance rate reaches 90 to 97%; the haze degree is low; the light transmittance adjustable performance is excellent; bending resistance and excellent flexibility are achieved; folding mark is not easily cause; the comprehensive performance is excellent; function requirements of different liquid crystal display screens are satisfied; it is beneficial for production of flexible fixing of curved display screens, flexible coiled display screens, flexible folding display screens, and whole flexible display screens; and the suitable range is wide.

Description

technical field [0001] The invention relates to the technical field of films, in particular to a modified BOPP composite film and a preparation method thereof. Background technique [0002] With the development of technology, liquid crystal displays (LCDs) are widely used in high-tech advanced electronic products such as tablet computers, LCD watches, and smart phones. Polarizer is one of the important materials of liquid crystal display. It is a composite material made of polyvinyl alcohol (PVA) stretched film and cellulose acetate film (TAC) through multiple lamination, stretching, coating and other processes. Realize high brightness and high contrast characteristics of liquid crystal display. Polarizers account for about 10% of the cost of a TFT-LCD (Thin Film Transistor Liquid Crystal Display) panel. Because its production technology brings together various technologies such as polymer materials, microelectronics, optoelectronics, thin films, high-purity chemistry and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/10B32B27/08B32B27/20B32B27/30B32B27/32B32B27/36B32B7/12C08L23/12C08L77/00C08K7/06C08J5/18C09J4/02C09J4/06C09J9/02C09J11/06
CPCB32B17/064B32B7/12B32B27/08B32B27/20B32B27/306B32B27/32B32B27/36B32B27/365B32B2250/24B32B2262/0261B32B2262/106B32B2307/54B32B2307/558B32B2457/202C08J5/18C08J2323/12C08J2477/00C08K7/06C09J4/06C09J9/02C09J11/06
Inventor 邓浩鹏
Owner DONGGUAN DINGLI FILM TECH
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