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OLED terminal protection adhesive capable of being quickly cured by UV LED

A fast-curing and protective adhesive technology, applied in adhesives, non-polymer organic compound adhesives, etc., can solve problems such as high energy consumption, high cost, and environmental pollution, and achieve cost reduction, low water absorption, and simple and efficient synthesis methods Effect

Active Publication Date: 2020-05-19
东莞市联灏新材料技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a UV LED fast-curable OLED terminal protective glue, which can effectively solve the high energy consumption caused by UV light curing using traditional UV light sources. , high cost, and environmental pollution problems, while achieving good insulation and moisture resistance

Method used

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  • OLED terminal protection adhesive capable of being quickly cured by UV LED
  • OLED terminal protection adhesive capable of being quickly cured by UV LED
  • OLED terminal protection adhesive capable of being quickly cured by UV LED

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preparation example Construction

[0032] The preparation method of the terminal protection glue is the prior art, and the preparation method of the terminal protection glue will not be described in detail here.

[0033] The "A2" is a difunctional acrylate, as represented by general formula (a):

[0034]

[0035] In the formula, R represents a divalent straight-chain or branched alkylene group, or a molecular segment containing a heterocyclic ring, a benzene ring, or a spiro ring structure, selected from the following structures:

[0036]

[0037]

[0038] "B X In "X=3~6, it is the compound that contains three or more than three polythiol functional groups.

[0039] The acrylated liquid rubber refers to viscous liquid rubber based on isoprene or butadiene modification, which has been acrylated, and the acrylated liquid rubber is preferably UC-102, UC -203 or NISSO-PB TE-2000 of Nippon Soda Co., Ltd.

[0040]The reactive diluent contains an acrylate monomer with a long-chain alkyl or heterocyclic str...

Embodiment 1

[0045] This embodiment provides OLED terminal protective glue that can be quickly cured by UV LED. By weight, the weight parts of each component are as follows:

[0046]

[0047]

[0048] The hyperbranched polysulfide of described mercapto functionalization is self-made, and by weight, the required material of resin synthesis reaction is:

[0049] Dioxanediol diacrylate: 65.2g

[0050] TMMP: 95.7g

[0051] Catalyst: 0.5g

[0052] The catalyst is Et 3 N.

[0053] The preparation method of the hyperbranched polysulfide of described thiol functionalization, comprises following specific steps:

[0054] Step A: Prepare the various component materials required for the above resin synthesis reaction by weight.

[0055] Step B: Add the TMMP and catalyst weighed in step A in a four-necked flask equipped with a stirrer, a thermometer, a condenser tube, a nitrogen pipe and a constant pressure funnel; Slowly add dioxanediol diacrylate dropwise in the pressure funnel. After the...

Embodiment 2

[0057] A kind of OLED terminal protective glue that can be quickly cured by UV LED, by weight, the weight parts content of each component is as follows:

[0058]

[0059] The hyperbranched polysulfide of described mercapto functionalization is self-made, and by weight, the required material of resin synthesis reaction is:

[0060] 1,6-hexanediol diacrylate: 22.6g

[0061] PEMP: 73.3g

[0062] Catalyst: 0.3g

[0063] The catalyst is pyridine.

[0064] The preparation method of the hyperbranched polysulfide of described thiol functionalization, comprises following specific steps:

[0065] Step A: Prepare the various component materials required for the above resin synthesis reaction by weight.

[0066] Step B: Add the PEMP weighed in step A and the catalyst in a four-necked flask equipped with a stirrer, a thermometer, a condenser tube, a nitrogen pipe and a constant pressure funnel; Slowly add 1,6-hexanediol diacrylate dropwise into the funnel. After the dropwise additi...

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Abstract

The invention discloses an OLED terminal protective adhesive capable of being quickly cured by an UV LED. The OLED terminal protective adhesive is prepared by mixing the following components in partsby weight: 20-40 parts of sulfydryl-functionalized hyperbranched polythioether, 20 to 50 parts of acrylic acid esterification liquid rubber, 10 to 50 parts of a reactive diluent, 0.1 to 8 parts of a photoinitiator and 0.5 to 5 parts of an auxiliary agent. The sulfydryl-functionalized hyperbranched polythioether is synthesized by a method of A2+BX. According to a formula in the invention, the sulfydryl-functionalized hyperbranched polythioether is used as a protective adhesive of key resin, and the OLED terminal protective adhesive has excellent curing speed, storage stability, colloid strength, water absorption, adhesive force, reliability and the like and is an OLED terminal protective adhesive material which has excellent properties and can be rapidly cured by the UV LED.

Description

technical field [0001] The invention relates to the technology in the field of adhesives, in particular to a protective adhesive for OLED terminals that can be quickly cured by UV LEDs. Background technique [0002] In the past two decades, organic light-emitting device (OLED) has developed rapidly, and is recognized as the most advanced technology after cathode ray tube (CRT), liquid crystal display (LCD) and plasma display (PDP). Development prospects of next-generation display technology. For OLED modules, it is particularly important to insulate and protect the circuit at the terminal and the chip from moisture, otherwise the life of the device will be fatally affected. At present, there are usually the following protection schemes for OLED module terminals: The first one is to protect it by covering it with a layer of room temperature vulcanized silicone rubber. Silicone rubber takes a long time to cure, and it takes at least 48 hours to completely cure, which seriousl...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J4/06C08G83/00
CPCC08G83/005C09J4/06
Inventor 黄战光
Owner 东莞市联灏新材料技术开发有限公司
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