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Organosilicone modified polyurethane heat conduction bright enhancement film applied to chip packaging of LED plant growth lamp

A plant growth and silicone technology, applied in polyurea/polyurethane adhesives, semiconductor devices, adhesive types, etc., can solve the problems affecting chip light output efficiency and service life, low luminous efficiency, and short service life. It achieves the effect of concentrating and brightening obviously, easy to use, and improving the effective irradiation rate

Inactive Publication Date: 2016-11-09
秦廷廷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] LED plant growth lamps are mostly composed of a number of uniformly distributed single lamps, of which a single lamp is packaged by several light-emitting chips. The production process generally includes crystal bonding, wire bonding, potting, cutting, testing, and packaging. A process, in which the performance of potting glue will directly affect the light output efficiency and service life of the chip. At present, the problems existing in the application process of LED plant lights are mainly low luminous efficiency, high light dispersion, and high-power chip packaging. There are problems such as poor heat dissipation and short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The modified silica gel heat-conducting light-concentrating film of this example is made by the raw material of following weight parts: polypropylene glycol 40, hydroxyl silicone oil 20, toluene-2,4-diisocyanate 10, dibutyltin dilaurate 0.1, graphene 4, Polysilazane 5, aluminum isopropoxide 0.4, butyl glycidyl ether 5.

[0012] The organosilicon-modified polyurethane heat-conducting light-concentrating film is prepared by the following steps:

[0013] (1) First mix polypropylene glycol with hydroxyl silicone oil, vacuum dehydrate at 110°C, cool to 50°C after completely removing moisture, add toluene-2,4-diisocyanate dropwise, stir while adding, dropwise After the completion of the constant temperature reaction for 3 hours, after the reaction, dibutyltin dilaurate was added dropwise, the temperature was raised to 60°C, the reaction was carried out for 1 hour, and the material was filtered to obtain a silicone-modified polyurethane emulsion for later use;

[0014] (2) Pu...

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Abstract

The invention discloses an organosilicone modified polyurethane heat conduction bright enhancement film applied to chip packaging of an LED plant growth lamp to replace a traditional silica gel layer, wherein a coating has excellent effects of dewatering and resisting humidity, and is more suitable for an environment in a plant growth greenhouse, added materials of graphene, aluminum isopropoxide and polysilazane further improve the heat conduction and the optical property of a sizing material, the effects of bright enhancement is remarkable, the effective exposure rate of the lamp on a plant is greatly improved, the bright enhancement film is simple to use, and directly coats and is solidified on a chip or a fluorescent powder layer when in use.

Description

technical field [0001] The invention relates to the technical field of LED encapsulation adhesives, in particular to a silicone-modified polyurethane heat-conducting light-concentrating film applied to LED plant growth lamp chip encapsulation. Background technique [0002] Illumination is a crucial factor in the process of plant growth. During the planting process, due to changes in natural conditions, especially in late autumn and winter, the light of plants is obviously insufficient. At this time, indoor supplementary lighting is particularly important. LED light source is an ideal artificial light source in the agricultural field that has emerged in recent years. Compared with traditional light sources, LED light source is energy-saving and environmentally friendly, with a pure spectrum and a wavelength range that fits the growth of plants. It has a huge market demand. [0003] LED plant growth lamps are mostly composed of a number of uniformly distributed single lamps, o...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J11/04C09J11/08C09J11/06C08G18/61C08G18/48H01L33/56
CPCC08G18/48C08G18/61C08L2203/206C09J11/04C09J11/06C09J11/08C09J175/08H01L33/56C08L83/16C08K3/04C08K5/057
Inventor 秦廷廷
Owner 秦廷廷
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