Frame sealant composition and preparation method thereof and display device

A technology of composition and frame sealing glue, which is applied in the direction of adhesive, epoxy glue, adhesive type, etc., can solve problems such as liquid crystal outflow, poor adhesion, and bad liquid crystal display, so as to prevent liquid crystal leakage and improve quality The effect of preventing internal coagulation damage

Inactive Publication Date: 2015-08-05
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the rapid drop injection method, the frame sealing composition is generally mainly composed of acrylic resin as a light-curing resin and epoxy resin as a heat-curing resin, but the bonding of the existing sealing compound composition after curing There are some problems in performance. For example, under high temperature and high humidity conditions, the existing sealant composition has poor adhesion, which easily causes liquid crystal to flow out, resulting in defective liquid crystal displays.

Method used

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  • Frame sealant composition and preparation method thereof and display device
  • Frame sealant composition and preparation method thereof and display device
  • Frame sealant composition and preparation method thereof and display device

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preparation example Construction

[0047] Such as figure 1 As shown, the preparation method of the sealant composition of the present invention comprises:

[0048] Step 101, mixing the carbon nanotubes modified by the silane coupling agent with other components in the sealant composition to form a stirred mixture; specifically:

[0049] Carbon nanotubes modified by silane coupling agent with a mass fraction of 1.7% to 2.1%, epoxy resin with a mass fraction of 10% to 15%, acrylic resin with a mass fraction of 60% to 70%, and a mass fraction of 0.5 %~1% of alkyl phenone photoinitiator, 5%~8% of polybasic aliphatic amine heat curing agent, 5%~10% of silica microspheres and 5% of mass fraction %~8% resin elastic microspheres are stirred at a temperature of 10~30°C for 30~60 minutes to form a stirred mixture;

[0050] Step 102, kneading the stirring mixture; specifically:

[0051] kneading the stirred mixture at 30-50°C;

[0052] Step 103, defoaming the kneaded mixture.

[0053] Preferably, before forming the s...

Embodiment 1

[0059] Put the mixture of TNIMH6 with a mass fraction of 0.1% and KH570 with a mass fraction of 1.9% into a 40kHz / 1000W ultrasonic oscillator for 5 to 6 hours of ultrasonic vibration treatment to form TNIMH6 modified by a silane coupling agent, that is, to obtain the mass fraction as 2% TNIMH6-KH570 complex. Fourier transform infrared spectrometer (FT-IR) was used to characterize the TNIMH6 before and after the modification of the silane coupling agent. Specifically, potassium bromide (KBr) was used to press the tablet to make samples, and the TNIMH6 before and after the modification of the silane coupling agent was tested. infrared spectroscopic data. Before modification, TNIMH6 is hydroxylated carbon nanotubes, at 3480cm -1 A strong absorption peak of hydroxyl appears at the place; after modification by KH570, at 3480 -1 The absorption peak weakens at 1082cm -1 A strong absorption peak of C-O-Si appears. This shows that after ultrasonic oscillation treatment, TNIMH6 and ...

Embodiment 2

[0065] Put the mixture of TNIMH6 with a mass fraction of 0.2% and KH570 with a mass fraction of 1.5% into a 40kHz / 1000W ultrasonic oscillator for 5 to 6 hours of ultrasonic vibration treatment to form TNIMH6 modified by a silane coupling agent, that is, to obtain the mass fraction 1.7% TNIMH6-KH570 complex.

[0066] The TNIMH6-KH570 compound with a mass fraction of 1.7%, the bisphenol A epoxy resin with a mass fraction of 10%, the methacrylic resin with a mass fraction of 70%, and the alkyl phenone photosensitive resin with a mass fraction of 0.5% Initiator α-hydroxyalkyl phenone, multi-component aliphatic amine heat curing agent dimethylaminopropylamine with a mass fraction of 5%, silica microspheres with a mass fraction of 5%, and resin elastic microspheres with a mass fraction of 7.8% stirring at a temperature of 10 to 30°C for 30 to 60 minutes, preferably at a temperature of 20°C for 60 minutes to form a stirred mixture;

[0067] Knead the above-mentioned stirred mixture ...

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Abstract

A frame sealant composition, a preparation method thereof and a display device. The frame sealant composition comprises 1.7%-2.1% of carbon nanotubes modified by silane coupling agent, based on the total weight of the frame sealant composition. The preparation method of the frame sealant composition comprises mixing the carbon nanotubes modified by silane coupling agent with the other components of the frame sealant composition to form a stirring mixture, then kneading the stirring mixture, and finally deaerating the kneaded mixture. The adhesive strength of the frame sealant composition may be increased by using the method.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a frame sealant composition, a preparation method thereof and a display device. Background technique [0002] Among the flat panel display devices, Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) has the characteristics of small size, low power consumption, relatively low manufacturing cost and low radiation, and occupies an important position in the current flat panel display market. took a dominant position. [0003] In the manufacturing process of the thin film transistor liquid crystal display, the color filter substrate and the array substrate need to be bonded to each other, and the bonding material is the frame sealing compound. At present, the box-making process mostly adopts the one drop filling method (ODF for short). A certain amount of ultraviolet light is irradiated, and then heated to realize the curing of the sealing compound composition. The fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/04C09J133/00C09J163/02G02F1/1339
CPCC08K7/24G02F1/1339C09J133/04C08K9/06C08G59/245C08G59/5013C08K3/04C08K3/041C08K3/36C08K5/5419C08L33/10C08L63/00
Inventor 肖昂宋省勳汪姗姗
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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