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UV hybrid curable OLED sealant composition

A technology of hybrid curing and composition, applied in the direction of adhesives, adhesive types, epoxy resin glue, etc., to achieve the effect of good coating operability, high bonding strength, and excellent resistance to water and oxygen penetration

Active Publication Date: 2020-05-29
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

[0007] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a UV hybrid curable OLED sealant composition, which can effectively solve the problem of performance degradation of the device due to the penetration of water and oxygen, Improve the lifetime of OLED

Method used

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  • UV hybrid curable OLED sealant composition
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  • UV hybrid curable OLED sealant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides a UV hybrid curable OLED sealant composition, which is prepared by mixing the components in the following parts by weight:

[0052]

[0053] The UV hybrid curable functional organosiloxane is self-made, and by weight, the materials required for the resin synthesis reaction are:

[0054]

[0055] The preparation method of the UV hybrid curable functional organosiloxane comprises the following specific steps:

[0056] Step A: Prepare the various component materials required for the above resin synthesis reaction by weight.

[0057] Step B: Add the TDI trimer and DBTL weighed in step A to a four-necked flask equipped with a stirrer, a thermometer, a condenser tube, a nitrogen pipe and a constant pressure funnel; , slowly drop dihydroxypolydiphenylsiloxane from the constant pressure funnel, after the dropwise addition, slowly raise the temperature, control the reaction temperature below 45 ° C, measure the content of isocyanate every half an ...

Embodiment 2

[0060] This embodiment provides a UV hybrid curable OLED sealant composition, which is prepared by mixing the components in the following parts by weight:

[0061]

[0062] The UV hybrid curable functional organosiloxane is self-made, and by weight, the materials required for the resin synthesis reaction are:

[0063]

[0064] The preparation method of the UV hybrid curable functional organosiloxane comprises the 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 IPDI trimer and DBTL weighed in step A to a four-necked flask equipped with a stirrer, a thermometer, a condenser tube, a nitrogen pipe and a constant pressure funnel; , slowly drop dihydroxypolydimethylsiloxane from the constant pressure funnel, after the dropwise addition, slowly raise the temperature, control the reaction temperature below 45 ° C, measure the content of isocyanate every half an...

Embodiment 3

[0069] This embodiment provides a UV hybrid curable OLED sealant composition, which is prepared by mixing the components in the following parts by weight:

[0070]

[0071] The UV hybrid curable functional organosiloxane is self-made, and by weight, the materials required for the resin synthesis reaction are:

[0072]

[0073]

[0074] The preparation method of the UV hybrid curable functional organosiloxane comprises the following specific steps:

[0075] Step A: Prepare the various component materials required for the above resin synthesis reaction by weight.

[0076] Step B: Add the MDI trimer and DBTL weighed in step A in a four-necked flask equipped with a stirrer, a thermometer, a condenser, a nitrogen pipe and a constant pressure funnel; , slowly drop dihydroxypolydimethylsiloxane from the constant pressure funnel, after the dropwise addition, slowly raise the temperature, control the reaction temperature below 45 ° C, measure the content of isocyanate every h...

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Abstract

The invention discloses a UV hybrid curable OLED sealant composition. The OLED sealant composition is prepared by mixing the following components in parts by weight: 30-65 parts of UV hybrid curable functional organic siloxane; 10 to 30 parts of aliphatic epoxy resin; 10 to 40 parts of an acrylate monomer; 0.1 to 8 parts of a photo initiator; 0.1 to 8 parts of a thermal initiator; and 0.5 to 5 parts of a coupling agent. A UV hybrid curable functional organic siloxane is used as a key resin of the OLED sealant composition. The OLED sealant composition has excellent water and oxygen permeation resistance and good coating operability. Moreover, the shrinkage rate is low, the ion content is low, the bonding strength is high, and the OLED sealant composition has an excellent performance, is used for packaging an OLED device, can be rapidly positioned under the action of ultraviolet light, meets the packaging strength requirement, realizes high-efficiency production, solves the problem thatthe performance of the OLED device is reduced due to permeation of water and oxygen, and prolongs the service life of OLED.

Description

technical field [0001] The invention relates to the technology in the field of encapsulation of OLED display panels, in particular to a UV hybrid curable OLED sealant composition. 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. At present, many famous universities, research institutes and companies all over the world are carrying out basic and applied research on OLEDs, but people still face great challenges in realizing the industrialization of OLEDs. Because compared with commercialized flat panel display devices such as CRT, LCD, PDP, etc., the short operating life of OLED has become one of the main bottlenecks restricting its industrialization. In view of this, domestic and foreign scholars have carried out a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J163/00
CPCC09J183/04C08L2205/03C08L2205/035C08L2205/025C08L2203/206C08L63/00
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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