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A kind of high-strength and high-transmittance polycarbonate film with wear-resistant surface for liquid crystal and preparation method thereof

A polycarbonate and high-strength technology, which is applied in the field of high-strength and high-transparency polycarbonate film and its preparation, can solve the problems such as the decrease of polycarbonate light transmittance, increase the filling amount, improve scratch resistance, and excellent The effect of translucency

Active Publication Date: 2017-05-17
南通华普光电材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is mainly because when the filler content is greater than 15%, the light transmittance of polycarbonate will often be greatly reduced.

Method used

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  • A kind of high-strength and high-transmittance polycarbonate film with wear-resistant surface for liquid crystal and preparation method thereof
  • A kind of high-strength and high-transmittance polycarbonate film with wear-resistant surface for liquid crystal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-strength and high-light-transmitting polycarbonate film with a wear-resistant surface for liquid crystal, the thickness of which is 0.05mm, and is composed of raw material bisphenol A polycarbonate, nano-silicon dioxide, ultra-fine active silicon powder, ultra-fine modified oxide Aluminum, a silane coupling agent and a lubricant are prepared. According to the weight parts, the weight parts of the above-mentioned raw materials are:

[0028] 100 parts of bisphenol A polycarbonate (molecular weight is 50,000-100,000);

[0029] Nano silica (SiO 2 The content is more than 99.8%, the particle size is 200-400nm, and the specific surface area is 200±50m 2 / g) 15 copies;

[0030] Ultrafine active silicon powder (400-2000 mesh, loose bulk density 1330kg / m 3 ) 10 copies;

[0031] Ultrafine modified alumina (particle size is 200nm-2um, obtained by graft copolymerization of alumina and acryloyl chloride in a ratio of 4:1 by mass, the reaction temperature is 25°C, and the ...

Embodiment 2

[0040] A high-strength and high-transmittance polycarbonate film with a wear-resistant surface for liquid crystal, the thickness of which is 0.20mm, and is composed of raw material bisphenol A polycarbonate, nano-silicon dioxide, ultra-fine active silicon powder, ultra-fine modified oxide Aluminum, a silane coupling agent and a lubricant are prepared. According to the weight parts, the weight parts of the above-mentioned raw materials are:

[0041] 100 parts of bisphenol A polycarbonate (molecular weight is 50,000-100,000);

[0042] Nano silica (SiO 2 The content is more than 99.8%, the particle size is 200-400nm, and the specific surface area is 200±50m 2 / g) 30 copies;

[0043] Ultrafine active silicon powder (400-2000 mesh, loose bulk density 1330kg / m 3 ) 20 copies;

[0044] Ultrafine modified alumina (particle size is 200nm-2um, obtained by graft copolymerization of alumina and acryloyl chloride in a ratio of 4:1 by mass, the reaction temperature is 25°C, and the react...

Embodiment 3

[0049] A high-strength and high-transmittance polycarbonate film with a wear-resistant surface for liquid crystal, the thickness of which is 0.15mm, and is composed of raw material bisphenol A polycarbonate, nano-silicon dioxide, ultra-fine active silicon powder, ultra-fine modified oxide Aluminum, a silane coupling agent and a lubricant are prepared. According to the weight parts, the weight parts of the above-mentioned raw materials are:

[0050] 100 parts of bisphenol A polycarbonate (molecular weight is 50,000-100,000);

[0051] Nano silica (SiO 2 The content is more than 99.8%, the particle size is 200-400nm, and the specific surface area is 200±50m 2 / g) 25 copies;

[0052] Ultrafine active silicon powder (400-2000 mesh, loose bulk density 1330kg / m 3 ) 15;

[0053] Ultrafine modified alumina (particle size is 200nm-2um, obtained from the graft copolymerization reaction of alumina and acryloyl chloride in a mass ratio of 4:1, the reaction temperature is 25°C, and the ...

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Abstract

The invention belongs to the technical field of plastic films for liquid crystal, and particularly discloses a high-strength high-transmittance polycarbonate film with a wear-resistant surface for liquid crystal and a preparing method thereof. The polycarbonate film is prepared from, by weight, 100 parts of bisphenol A polycarbonate, 15-30 parts of nanosilicon dioxide, 10-20 parts of ultrafine active silica powder, 10-20 parts of ultrafine modified aluminum oxide, 1-3 parts of silane coupling agent and 0.5-1 part of lubricant. The product has high surface scraping resistance (surface hardness is 4-7 H), excellent mechanical strength and light transparency (>=93%), and high temperature resistance (-50-120 DEG C); meanwhile, the prepared film is smooth and flat in surface and uniform in thickness and especially suitable for serving as an ultrathin liquid crystal screen. The film is obtained through extrusion pelleting with a twin-screw extruder and blow molding with a molding machine, the preparing technology is simple and feasible, and the film is suitable for industrial production and popularization.

Description

technical field [0001] The invention relates to the technical field of plastic films for liquid crystals, in particular to a high-strength and high-transparency polycarbonate film for liquid crystals with wear-resistant surfaces and a preparation method. Background technique [0002] Liquid crystal, namely liquid crystal (Liquid Crystal, LC), is a kind of phase state. Because of its special physical and chemical and optoelectronic properties, it has been widely used in thin and light display technology since the middle of the 20th century. The touch LCD screen is the input device of the computer. Unlike the keyboard that can realize input and the mouse that can be clicked, it allows users to touch the screen to make selections. The computer with a touch screen requires little storage space and few moving parts. And can be packaged. The touch effect caused by Apple's iPhone and ipad has promoted the application of LCD touch screen more and more widely. In 2013 alone, the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L91/06C08K9/06C08K3/36C08K9/04C08K3/22B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08J5/18C08J2369/00C08J2491/06C08K2201/003C08K2201/011C08K2201/014C08L69/00C08L2201/08C08L2201/10C08L2203/16C08L91/06C08K9/06C08K3/36C08K9/04C08K2003/2227
Inventor 杜军戴洪湖王锋丁瑜郭连贵覃彩芹
Owner 南通华普光电材料有限公司
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