LED (light-emitting diode) organosilicon pouring sealant and application thereof

A silicone potting adhesive, an organic technology, applied in adhesives, electrical components, circuits, etc., can solve the problems of poor selectivity of tackifiers, influence of transparency, low amount of tackifiers, etc., and achieve light-resistant aging dielectric properties, excellent Effect of decompression ability and excellent dielectric properties
CN103666367AActive Publication Date: 2014-03-26GUANGDONG HENGDA NEW MATERIALS TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG HENGDA NEW MATERIALS TECH
Publication Date
2014-03-26

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Abstract

The invention provides an LED (light-emitting diode) organosilicon pouring sealant. The LED organosilicon pouring sealant is composed of a component A and a component B, wherein the component A and the component B respectively comprise the following components that the component A is organopolysiloxane with a structural unit containing a -SiCH=CH2 group and a hydrogen silicide platinum family polysiloxane catalyst; the component B is organopolysiloxane with a structural unit containing a -SiCH=CH2 group, organopolysiloxane with a structural unit containing -SiH and at least one alkoxy, and alkynol or polyvinyl siloxane. When the pouring sealant provided by the invention is used for LED elements, the mixture is clear and transparent, and the compatibility is good; the pouring sealant has a good adhesive force on materials such as PPA (phenyl-propanolamine), PC (polycarbonate), zinc-plated aluminum and fluorescent powder in the LED elements after being cured at 50-60 DEG.C or room temperature, and the interlayer phenomenon is avoided; the organosilicon pouring sealant is high in transparency, cold and hot impact resistant, high temperature aging resistant and light aging resistant and has an excellent dielectric property.
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Description

technical field

[0001] The invention belongs to the field of organic compound compositions, in particular to an organic composition containing polysiloxane and its application. Background technique

[0002] LEDs (Light Emitting Diodes) are packaged in various components that emit light of a specific color. In order to enhance and guide the luminous flux and protect the LEDs from dust, moisture and mechanical damage, LED devices must be potted.

[0003] The existing addition-type liquid silicone rubber potting materials have the advantages of no low-molecular by-products, small stress, deep vulcanization, no corrosion, easy control of cross-linking structure, and small shrinkage of vulcanized products; the colloid can be vulcanized at room temperature, It can also be vulcanized by heating; after curing, the colloid has excellent properties such as thermal shock resistance, high temperature aging resistance and ultraviolet radiation resistance; in addition, it also has the ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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