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Frame sealing adhesive and preparation method thereof as well as display panel and display device

A frame sealing glue and nanomaterial technology, applied in chemical instruments and methods, adhesives, epoxy resin glue, etc., can solve the problems of poor thermal conductivity, poor thermal stability, insufficient hardness, etc., to improve mechanical properties and improve compatibility. Sex, the effect of avoiding pollution

Inactive Publication Date: 2017-08-08
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a frame sealant and its preparation method, a display panel and a display device to solve the problems of poor thermal conductivity, insufficient hardness and poor thermal stability in the prior art.

Method used

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  • Frame sealing adhesive and preparation method thereof as well as display panel and display device
  • Frame sealing adhesive and preparation method thereof as well as display panel and display device
  • Frame sealing adhesive and preparation method thereof as well as display panel and display device

Examples

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preparation example Construction

[0049] According to another aspect of the present invention, a method for preparing a frame sealant is provided, comprising the following steps: mixing an amine-modified nano material with a base component of the frame sealant, degassing, and curing to obtain a frame sealant.

[0050] Specifically, it can be: mix the amine-modified nanomaterials with the basic components of the sealant, and after ultrasonic treatment, stir at 500-1000rpm for 1-5h to obtain a homogeneous mixture, then add a defoamer and vacuumize at 50-70°C Remove air bubbles; when the air bubbles are completely removed, the mixture is cured to obtain the final product, frame sealant.

[0051] Wherein, the defoaming agent can be polyether modified silicon, polyether and polysiloxane, such as polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene alcohol amine ether, polyoxypropylene glyceryl ether and Polyoxypropylene polyoxyethylene glyceryl ether, polydimethylsiloxane, etc. ...

Embodiment 1

[0066] (1) Mix 84 g of multi-walled carbon nanotubes with 100 mL of concentrated acid (H 2 SO 4 / HNO 3 , where H 2 SO 4 The concentration is 98wt%, HNO 3 The concentration is 65wt%) sonication for 15min to prevent clusters, and heated in a water bath at 60°C for 10h to generate a large number of carboxyl and hydroxyl groups; then the multi-walled carbon nanotubes and 1g SOCl 2 Heated in a water bath at 70°C for 24h, filtered and dried, and heated with 5g of N-(2aminoethyl)-1,2-ethylenediamine in a water bath at 120°C for 36h, and dried in a vacuum oven at 60°C After 48 hours, modified multi-walled carbon nanotubes were obtained.

[0067] (2) Mix 0.7g of modified multi-walled carbon nanotubes with 99.3g of sealant resin (9-20737 type sealant), and after ultrasonic treatment, stir with a strong mixer at 700rpm for 2h to obtain a homogeneous mixture, and then add Foaming agent polyoxyethylene polyoxypropylene pentaerythritol ether, vacuumize at 60°C to remove air bubbles. ...

Embodiment 2

[0069] In step (2), the amount of modified multi-walled carbon nanotubes is 1 g, the amount of sealing resin is 99 g, and the others are the same as in Example 1.

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Abstract

The invention relates to the technical field of display and in particular relates to a frame sealing adhesive and a preparation method thereof as well as a display panel and a display device. The frame sealing adhesive provided by the invention comprises a frame sealing adhesive basic component and further comprises an amine modified nano-material. According to the frame sealing adhesive, the nano-material is added, so that the heat stability, mechanical properties and heat-conducting property of a frame sealing adhesive material are remarkably improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a frame sealant and a preparation method thereof, a display panel and a display device. Background technique [0002] The main component of the existing frame sealant is epoxy resin. Since the epoxy resin itself is a poor conductor of heat, the heat transfer rate is slow, resulting in a large temperature gradient from the outside to the inside of the frame sealant. Therefore, the existing frame sealant has at least the following problems: non-uniform curing and incomplete curing, thus easily producing pollutants to contaminate liquid crystals and image afterimages. In addition, the existing frame sealant still has problems such as insufficient hardness and insufficient thermal stability. The former leads to problems such as glue breaking and liquid crystal leakage during the process of handling and quality evaluation, which seriously affects the stability of the frame sealant pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/10C09J175/14C09J11/04C09J4/02C09J4/06C09K5/14G02F1/1339
CPCC08K3/04C08K3/34C08K2201/011C09J4/06C09J11/04C09J163/10C09J175/14C09K5/14G02F1/1339C08L75/14C08K9/04C08K7/24C08K2003/385C08K3/28C08K2003/382C09D175/14C08K3/041C08K3/042G02F1/13398C08L71/02C09J163/00
Inventor 郭乐张然梁恒镇董慧吕超焦欣薇
Owner BOE TECH GRP CO LTD
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