LED (light-emitting diode) lamp glass lamp shell heat-conducting and explosion-proof coating material and preparation method thereof

A technology for LED lamps and coating materials, applied in the direction of coating, etc., can solve the problems of volatile solvents, flammable biological toxicity, thermal conductivity not described, shortening the life of the filament, etc., to achieve good compatibility, improve the maintenance of luminous flux efficiency and reduce security risks

Active Publication Date: 2015-10-21
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, heat dissipation has always been a long-term problem to be solved for LED lamps. Coating a layer of polymer film with poor thermal conductivity on the glass bulb will further increase the thermal resistance, increase the temperature of the filament, and shorten the life of the filament
[0006] Chinese Patent Publication No. 104359081A describes the explosion-proof application of a solvent-based electronic coating adhesive on glass bulb lamps, but does not describe the thermal conductivity, and volatile solvents have potential hazards such as flammability and biological toxicity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a thermally conductive explosion-proof coating material for a glass lamp housing of an LED lamp, comprising the following steps

[0029] Preparation of modified graphene: add 1 part of graphene oxide to 10 parts of N,N-dimethylformamide, after ultrasonic dispersion, add 1 part of KH-570, stir evenly, heat up to 110°C, and react for 8 hours . After the reaction product was centrifuged and washed four times with methanol, it was vacuum-dried at 50°C to obtain the modified graphene.

[0030] Preparation of component A: Add 0.2 parts of modified graphene to 10 parts of toluene, ultrasonically disperse evenly, then add 100 parts of vinyl silicone oil (vinyl content 0.15%, viscosity 3000cs), put it in a vacuum defoamer and mix evenly . The toluene in the solution was removed using a rotary evaporator to obtain a mixture. Add 0.3 parts of 3000ppm chloroplatinic acid catalyst and mix well to make component A.

[0031] Preparation of component B: 73 pa...

Embodiment 2

[0033] A method for preparing a thermally conductive explosion-proof coating material for a glass lamp housing of an LED lamp, comprising the following steps

[0034] Preparation of modified graphene: Add 1 part of graphene oxide to 10 parts of N,N-dimethylformamide, after ultrasonic dispersion, add 1 part of vinyltrimethoxysilane, stir evenly, heat up to 130 ° C, React for 4 hours. After the reaction product was centrifuged and washed four times with methanol, it was vacuum-dried at 50°C to obtain the modified graphene.

[0035] Preparation of component A: Add 0.4 parts of modified graphene to 10 parts of toluene, ultrasonically disperse evenly, then add 100 parts of methyl vinyl silicone oil (vinyl content 0.25%, viscosity 1000cs), and put it in a vacuum defoamer well mixed. The toluene in the solution was removed using a rotary evaporator to obtain a mixture. Add 0.5 parts of 2000ppm chloroplatinic acid catalyst and mix well to make component A.

[0036] Preparation of ...

Embodiment 3

[0038] A method for preparing a thermally conductive explosion-proof coating material for a glass lamp housing of an LED lamp, comprising the following steps

[0039] Preparation of modified graphene: Add 1 part of graphene oxide to 10 parts of N,N-dimethylformamide, after ultrasonic dispersion, add 1 part of KH-560, stir evenly, heat up to 110°C, and react for 8 hours . After the reaction product was centrifuged and washed four times with methanol, it was vacuum-dried at 50°C to obtain the modified graphene.

[0040] Preparation of component A: Add 0.2 parts of modified graphene to 10 parts of toluene, ultrasonically disperse evenly, then add 100 parts of methyl vinyl silicone oil (vinyl content 0.1%, viscosity 5000cs), and put it in a vacuum defoamer well mixed. The toluene in the solution was removed using a rotary evaporator to obtain a mixture. Add 0.1 part of 5000ppm platinum complex catalyst coordinated by methylvinylsiloxane, mix well, and make A component.

[0041...

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Abstract

The invention discloses an LED (light-emitting diode) lamp glass lamp shell heat-conducting and explosion-proof coating material and a preparation method thereof. The coating material is prepared from a component A and a component B, wherein the component A is prepared from modified graphene, vinyl base silicone oil and a catalyst; the component B is prepared from vinyl base silicone oil, vinyl base silicone resin, hydrogen-containing silicone oil, an inhibitor and a tackifier. The heat-conducting and explosion-proof coating material provided by the invention can be used for coating the surface of an LED lamp glass lamp shell, a layer of protection film is formed after curing, and cracking after the glass lamp shell falls off is prevented, so that the phenomenon that a non-insulated electrified part or an internal connecting wire can be contacted, or mechanical insulation of internal parts of equipment is damaged is avoided.

Description

technical field [0001] The invention relates to the field of organosilicon polymers, in particular to a heat-conducting explosion-proof coating material for glass lamp housings of LED lamps and a preparation method thereof. Background technique [0002] LED lighting has the characteristics of small size, high brightness, and low energy consumption. It is expected to replace incandescent fluorescent lamps and become the mainstream indoor lighting source. [0003] The lampshade materials of LED lamps are mainly plastic and glass, especially the LED filament lamps that have become popular in recent years. When dropped, the glass shell is easy to burst, scattering glass shards, non-insulated live parts or internal wiring can be touched by the human body, posing a safety hazard. In addition, according to UL1993 certification requirements, when the lamp is dropped from a height of 0.91m to a hardwood board, the internal live parts must remain untouchable. Therefore, untreated gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D7/12
Inventor 江昊高传花韩志远林天翼周光大
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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