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Gasket used for transporting liquid crystal box and preparation method of gasket

A technology for liquid crystal cells and gaskets, applied in the field of material preparation and application, can solve problems such as inability to suppress electrostatic charges

Inactive Publication Date: 2015-04-29
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to a large amount of friction during transportation, even though an antistatic agent is added to the gasket, it still cannot suppress the generation of a large amount of electrostatic charge

Method used

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  • Gasket used for transporting liquid crystal box and preparation method of gasket
  • Gasket used for transporting liquid crystal box and preparation method of gasket
  • Gasket used for transporting liquid crystal box and preparation method of gasket

Examples

Experimental program
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preparation example Construction

[0041] The embodiment of the present invention also provides a method for preparing a gasket for liquid crystal cell transportation, comprising the following steps:

[0042] Dispersing 49-70wt% PTFE based on the total weight of the gasket in a nonionic surfactant to prepare a PTFE emulsion with a PTFE content of 55-65wt%;

[0043] Melting 10 to 20 wt% of PI particles based on the total weight of the gasket and uniformly mixing with the PTFE emulsion to obtain a first mixture;

[0044] Adding 15-25wt% reinforcing agent based on the total weight of the gasket to the above first mixture, and mixing uniformly to obtain a second mixture;

[0045] Add 1-3wt% antifungal agent based on the total weight of the gasket and 0.1-1wt% antistatic agent based on the total weight of the gasket to the above-mentioned second mixture, and mix uniformly to obtain a material;

[0046] Volatilize the nonionic surfactant in the above-mentioned material under vacuum condition;

[0047] Forming the a...

Embodiment 1

[0059] A gasket for liquid crystal cell transportation, comprising the following components: 82.4wt% PTFE; 15wt% ultrafine silicon dioxide nanoparticles with a particle size of 150nm; 2.5wt% phenol; 0.1wt% alkylsulfonate Sodium acid.

[0060] The gasket preparation process includes:

[0061] The PTFE based on gasket gross weight 82.4wt% is dispersed in glyceryl stearate, is prepared into the PTFE emulsion that PTFE content is 60wt%;

[0062] 15wt% of the ultrafine silica nanoparticles with a particle size of 150nm based on the total weight of the gasket are uniformly mixed with the PTFE emulsion prepared above to obtain a second mixture; 2.5wt% based on the total weight of the gasket is added to the second mixture. phenol and 0.1wt% sodium alkylsulfonate based on the total weight of the gasket, and mixed uniformly to obtain material 1;

[0063] After heating the vacuum melting stirred tank to 120°C, add material 1 into the stirred tank, vacuumize the stirred tank and keep it...

Embodiment 2

[0067] A gasket for liquid crystal cell transportation, comprising the following components: 77.2wt% PTFE; 20wt% ultrafine silicon dioxide nanoparticles with a particle size of 150nm; 2.5wt% phenol; 0.3wt% alkylsulfonate Sodium acid.

[0068] The gasket preparation process includes:

[0069] The PTFE based on gasket gross weight 77.2wt% is dispersed in glyceryl stearate, is prepared into the PTFE emulsion that PTFE content is 60wt%;

[0070] 20wt% of ultrafine silica nanoparticles with a particle size of 150nm based on the total weight of the gasket are uniformly mixed with the PTFE emulsion prepared above to obtain a second mixture; 2.5wt% based on the total weight of the gasket is added to the second mixture. phenol and 0.3wt% sodium alkylsulfonate based on the total weight of the gasket, and mixed uniformly to obtain material 2;

[0071] After heating the vacuum melting stirred tank to 120°C, add material 2 into the stirred tank, vacuumize the stirred tank and keep it for...

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Abstract

The invention provides a gasket used for transporting a liquid crystal box and a preparation method of the gasket. The gasket provided by the invention comprises the following components in percentage by weight: 49-70wt% of polytetrafluoroethylene, 10-25wt% of polyimide particles, 15-25wt% of a reinforcing agent, 1-3wt% of a mould inhibitor and 0.1-1wt% of an antistatic agent. By adopting the technical scheme, the obtained gasket is low in friction coefficient, a large number of electrostatic charges can be inhibited from being produced when the gasket is used in a process of transporting the liquid crystal box, the probability that the liquid crystal box is damaged when transported as characters of an indium tin oxide conductive layer are changed due to static is greatly reduced, and yield of produced liquid crystal display devices is increased.

Description

technical field [0001] The invention relates to the field of material preparation and application, in particular to a gasket used for liquid crystal cell transportation and a preparation method thereof. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD, Thin Film Transistor Liquid Crystal Display) is one of active matrix liquid crystal display devices (AM-LCD, Active Matrix-LCD). TFT-LCD generally includes backlight module lighting device, main control board, back panel, backlight source, plastic frame, diffusion plate, diffusion sheet, driver IC, printed circuit board, vertical polarizer, liquid crystal box, horizontal polarizer, front frame , wherein the core component is a liquid crystal cell. During the transportation process of the liquid crystal cells after packaging, in order to prevent the collision between the liquid crystal cells, gaskets will be placed between the liquid crystal cells. [0003] During transportation, due to bumps...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L79/08C08K13/02C08K3/36C08K5/42C08K3/32C08K5/39C08K5/17C08K5/20C08K5/103
CPCC08K3/36C08K5/103C08K5/13C08K5/42C08K13/02C08K2201/003C08K2201/011C08K2201/017C08L27/18C08L2203/20C08L79/08
Inventor 崔子巍李建吴志超
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD