Optical resin for optical protective film and preparation method thereof

A technology of optical resin and protective film, applied in optics, optical components, instruments, etc., can solve the problems of reduced mechanical properties, transparency, and low transparency, so as to avoid degradation and phase separation, reduce melting processing temperature, and improve thermal stability Effect

Active Publication Date: 2020-07-17
聚纶材料科技(深圳)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the transparency of the mixture of PC and PMMA is not high, and the mechanical properties are significantly reduced.
The use of carbonate-acrylic acid copolymer can significantly improve the compatibility of the blend system. However, due to technical reasons, so far, the melt-blended PMMA / PC blend cannot be completely transparent.

Method used

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  • Optical resin for optical protective film and preparation method thereof
  • Optical resin for optical protective film and preparation method thereof
  • Optical resin for optical protective film and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0095] The application also provides a preparation method of an optical resin for an optical protective film, comprising the steps of:

[0096] (1) Preparation of heat-resistant stabilizer

[0097] The copolycarbonate resin is melted and sprayed by a melt spinning machine, stretched and spun, clustered by a bundler, chopped by a fiber cutter, coarsely pulverized on a coarse pulverizer and ground by a fine mill to obtain copolycarbonate micropowder.

[0098] (2) Preparation of optical resin masterbatch

[0099] Add 20-40 parts of methyl methacrylate polymer, 60-80 parts of heat-resistant stabilizer, 1.2-6.4 parts of compatibilizer and 1.8-9.6 parts of lubricant into a high-speed mixer and mix thoroughly, and extrude through twin-screw Machine blending granulation, melt plasticization, extrusion granulation, vacuum drying to obtain optical resin masterbatch.

[0100] Preferably, add 30 to 35 parts of methyl methacrylate polymer, 65 to 70 parts of heat-resistant stabilizer, 1.8...

Embodiment 1

[0109] Embodiment 1, the concrete steps of the preparation method of optical resin for optical protection film are:

[0110] (1) Preparation of heat-resistant stabilizer

[0111] The copolycarbonate resin is melted and sprayed by a melt spinning machine, stretched and spun, clustered by a bundler, chopped by a fiber cutter, coarsely pulverized on a coarse pulverizer and ground by a fine mill to obtain copolycarbonate micropowder.

[0112] (2) Preparation of optical resin masterbatch

[0113] Add 40 parts of methyl methacrylate polymer, 60 parts of heat-resistant stabilizer, 1.2 parts of compatibilizer and 1.8 parts of lubricant into a high-speed mixer and mix thoroughly, then blend and granulate through a twin-screw extruder, melt plasticize Chemical, extruded, pelletized, and vacuum-dried to obtain optical resin masterbatches.

[0114] (3) Preparation of optical resin

[0115] The methyl methacrylate polymer and the optical resin masterbatch are added to a high-speed mixer...

Embodiment 2

[0123] Embodiment 2, the specific steps of the preparation method of optical resin for optical protective film are:

[0124] (1) Preparation of heat-resistant stabilizer

[0125] The copolycarbonate resin is melted and sprayed by a melt spinning machine, stretched and spun, clustered by a bundler, chopped by a fiber cutter, coarsely pulverized on a coarse pulverizer and ground by a fine mill to obtain copolycarbonate micropowder.

[0126] (2) Preparation of optical resin masterbatch

[0127] Add 20 parts of methyl methacrylate polymer, 80 parts of heat-resistant stabilizer, 6.4 parts of compatibilizer and 9.6 parts of lubricant into a high-speed mixer and mix thoroughly. Chemical, extruded, pelletized, and vacuum-dried to obtain optical resin masterbatches.

[0128] (3) Preparation of optical resin

[0129] The methyl methacrylate polymer and the optical resin masterbatch are added to a high-speed mixer according to the mass ratio of 6:10 and mixed thoroughly, blended and g...

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Abstract

The invention relates to an optical resin for an optical protective film and a preparation method thereof. The optical resin for the optical protective film is prepared from the following components in parts by mass: 50-90 parts of a methyl methacrylate polymer, 10-50 parts of a heat-resistant stabilizer, 0.2-4.0 parts of a compatibilizer and 0.3-6.0 parts of a lubricant. The heat-resistant stabilizer is copolycarbonate micro powder. The preparation method of the optical resin for the optical protective film comprises the steps of preparation of the heat-resistant stabilizer, preparation of anoptical resin master batch, preparation of the optical resin and the like. The method is simple in process, low in energy consumption and easy to realize industrialization. Compared with PMMA opticalresin produced in the prior art, the prepared optical resin for the optical protective film has outstanding heat-resistant stability and toughness, relatively low hygroscopicity and volume resistivity and less surface static electricity and is not easy to adsorb dust on the premise of ensuring basic physical and mechanical properties and optical properties.

Description

technical field [0001] The invention relates to the technical field of polymer material modification, in particular to an optical resin for an optical protective film and a preparation method thereof. Background technique [0002] Flat-panel displays are one of the most basic elements of the human-machine interface in the modern information society, and optical films play an important role in the production of flat-panel displays. As a basic component of flat-panel displays, polarizers play a key role in the realization of display functions and the improvement of display quality. Since triacetyl cellulose (TAC) has comprehensive excellent properties, especially outstanding optical properties, it is a traditional material for making optical protective films. With the development of science and technology, the quality and function of TAC membranes have been continuously improved in the past two decades. However, with the development of the large-size display market, TAC mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L69/00C08L33/08C08L67/06C08J5/18C08J3/22G02B1/14
CPCC08J5/18C08J3/226G02B1/14C08J2333/12C08J2433/12C08J2469/00C08J2433/08C08J2467/06C08L33/12
Inventor 胡树孙立民刁瑞敏
Owner 聚纶材料科技(深圳)有限公司
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