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A kind of potting glue and its preparation method and application

A potting and silicone technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of poor aging resistance and bonding performance to be improved, and achieve good bonding strength, convenient for industrial use. Large-scale production application, the effect of simple preparation method

Active Publication Date: 2021-07-27
深圳天鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foamed potting silica gel has good foaming ability, but its bonding performance still needs to be improved
[0006] CN103242799A discloses a low-viscosity, fast-curing, high-flexibility, two-component condensation-type potting silica gel and a preparation method thereof. The low-viscosity, fast-curing, high-flexibility, two-component condensation-type potting silica gel of the invention is composed of two components, A and B. Composition, the mass ratio of A and B components is 8-12:1; wherein A component is composed of the following raw materials by mass: 100 parts of hydroxyl-terminated polysiloxane, 20-100 parts of filler, 5-50 parts of extender Plasticizer, 0.1-5 parts of coloring material; component B consists of the following raw materials in parts by mass: 1-5 parts of cross-linking agent, 1-5 parts of coupling agent, 0.01-0.5 parts of catalyst, 5-10 parts of plasticizer , 0.5-5 parts of chain extender; the two-component condensation type potting silica gel prepared by this invention has low viscosity, fast curing and high flexibility, but its aging resistance is poor and needs to be further improved

Method used

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  • A kind of potting glue and its preparation method and application
  • A kind of potting glue and its preparation method and application
  • A kind of potting glue and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] This embodiment provides a potting silica gel, including A component and B component;

[0081] Wherein A component comprises the component of following parts by weight:

[0082]

[0083] B component comprises the component of following parts by weight:

[0084]

[0085] Among them: vinyl silicone oil is vinyl-terminated silicone oil (manufacturer Zhonglan Chenguang Chemical Research Institute), vinyl content in vinyl silicone oil is 1.0wt%, viscosity is 500cP; vinyl MQ resin (manufacturer Runhe Silicone Co., Ltd.) Viscosity 5000cP, vinyl content 0.3%; Hydrogen-containing silicone oil (manufacturer Shandong Dayi Chemical Co., Ltd.) has a hydrogen content of 0.3wt% and a viscosity of 100cP; the composite filler is alumina powder (manufacturer Shanghai Baitu New Material Technology Co., Ltd. company) and microsilica powder (manufacturer Shanghai Baitu New Material Technology Co., Ltd.), the mass ratio of microsilica powder and alumina powder is 1:1, and the average ...

Embodiment 2

[0091] This embodiment provides a potting silica gel, including A component and B component;

[0092] Wherein A component comprises the component of following parts by weight:

[0093]

[0094]

[0095] B component comprises the component of following parts by weight:

[0096]

[0097] Among them: vinyl silicone oil is vinyl-terminated silicone oil (manufacturer Zhonglan Chenguang Chemical Research Institute), vinyl content in vinyl silicone oil is 0.2wt%, viscosity is 1000cP; vinyl MQ resin (manufacturer Runhe Silicone Co., Ltd.) Viscosity 50000cP, vinyl content 0.1%; Hydrogen-containing silicone oil (manufacturer Shandong Dayi Chemical Co., Ltd.) has a hydrogen content of 0.35wt% and a viscosity of 100cP; the composite filler is a composition of alumina powder and silica powder, silica powder and The mass ratio of alumina powder is 1.5:1, and the average particle size of the composite filler is 5 μm; the inhibitor is methyl butynol (manufactured by Shenzhen Xinzeye...

Embodiment 3

[0103] This embodiment provides a potting silica gel, including A component and B component;

[0104] Wherein A component comprises the component of following parts by weight:

[0105]

[0106] B component comprises the component of following parts by weight:

[0107]

[0108] Among them: vinyl silicone oil is vinyl-terminated silicone oil (manufacturer Zhonglan Chenguang Chemical Research Institute), vinyl content in vinyl silicone oil is 0.5wt%, viscosity is 2000cP; vinyl MQ resin (manufacturer Runhe Silicone Co., Ltd.) Viscosity 100000cP, vinyl content 0.5%; Hydrogen-containing silicone oil (manufacturer Shandong Dayi Chemical Co., Ltd.) has a hydrogen content of 0.45wt% and a viscosity of 100cP; the composite filler is a composition of alumina powder and silicon micropowder, silicon micropowder and The mass ratio of alumina powder is 2:1, and the average particle size of the composite filler is 15 μm; the inhibitor is tetramethyltetravinyl cyclotetrasiloxane (manufa...

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Abstract

The invention provides a potting glue and its preparation method and application. The potting silica gel includes A component and B component; the A component includes the following components by weight: vinyl silicone oil 20-45 parts by weight , 2-7 parts by weight of hydrogen-containing silicone oil, 40-80 parts by weight of composite filler, 0.01-0.1 parts by weight of inhibitor, 1-5 parts by weight of tackifier; the B component includes the following components by weight: vinyl 15-30 parts by weight of silicone oil, 15-30 parts by weight of vinyl MQ resin, 30-70 parts by weight of composite filler, 0.05-0.2 parts by weight of catalyst; potting silica gel has good bonding performance, anti-vibration performance and aging resistance , can be used for potting of MR-type LED lamp cups to achieve good performance.

Description

technical field [0001] The invention belongs to the field of silicone rubber, and relates to a potting glue, a preparation method and application thereof. Background technique [0002] At present, MR-LED is gradually replacing traditional light bulbs. Traditional halogen spotlights contain mercury that seriously pollutes the environment, and have a short lifespan and high power consumption. They will be completely eliminated by 2018. MR-LED has a series of characteristics such as low working voltage, low power consumption, high luminous efficiency, pure light color, vibration resistance, stable and reliable performance, and small size. For example, 4W MR-LED spotlights can replace 35W halogen spotlights, And the life span is 5 times of that. [0003] However, in the process of transitioning from traditional lamps to LED lamps, many difficulties in production technology are faced, among which the replacement of ceramic materials in the production process of halogen lamps is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/07C09J183/05C09J11/04C09J11/08
CPCC08K2003/2227C08K2201/003C08L2201/08C08L2203/206C08L2205/025C08L2205/035C09J11/04C09J11/08C09J183/04C08L83/04C08K3/36C08K3/22
Inventor 李培
Owner 深圳天鼎新材料有限公司