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Silicone Condensed Two-Component Potting Adhesive and Its Application

A condensation type, two-component technology, used in the field of potting glue, can solve the problems of low light output efficiency and poor light quality, and achieve the effect of broad application market, small color temperature shift and fast speed.

Active Publication Date: 2021-06-15
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the traditional silicone encapsulant is mechanically reinforced by MQ resin or white carbon black, it will inevitably cause microphase separation in the internal structure of the encapsulant. When light passes through the surface encapsulation material, various scattering or refraction phenomena will occur. Eventually lead to low light extraction efficiency and poor light quality

Method used

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  • Silicone Condensed Two-Component Potting Adhesive and Its Application
  • Silicone Condensed Two-Component Potting Adhesive and Its Application
  • Silicone Condensed Two-Component Potting Adhesive and Its Application

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A silicone condensation-type two-component potting glue of this embodiment has a raw material formula as follows in parts by weight:

[0038]

[0039] The base glue of the above formula A component is 50000mPa.s double-ended hydroxypolymethylsiloxane (107 glue of 50000mPa.s), and the plasticizer is 100mPa.s double-ended methylpolysiloxane (100mPa .s methyl silicone oil), the viscosity of component A after mixing is 12000mPa.s.

[0040] In component B of the above formula, the modified crosslinking agent is polymethyltrimethoxysilane (commercially available NP31, the degree of polymerization is 3-6), the coupling agent is 3-aminopropyltriethoxysilane, and the catalyst is di Dibutyltin acetate, the plasticizer is 500mPa.s double-ended methyl polymethylsiloxane, and the mixed viscosity of component B is 220mPa.s.

[0041] The method for preparing and using the above-mentioned silicone condensation type two-component encapsulant comprises the following steps:

[0042] ...

Embodiment 2

[0048] A silicone condensation-type two-component potting glue of this embodiment has a raw material formula as follows in parts by weight:

[0049]

[0050] Component A of the above formula is 80000mPa.s double-ended hydroxypolymethylsiloxane (80000mPa.s 107 glue), plasticizer is 350mPa.s double-ended methylpolysiloxane (350mPa .s methyl silicone oil), the viscosity of component A after mixing is 14500mPa.s.

[0051] In component B of the above formula, the modified crosslinking agent is polymethyltriethoxysilane (commercially available CJ-8300, the degree of polymerization is 3-6), and the coupling agent is 3-glycidyl etheroxypropyltrimethoxy Silane, the catalyst is dibutyltin diacetate, the plasticizer is 500mPa.s double-ended methyl polymethylsiloxane, and the mixed viscosity of component B is 268mPa.s.

[0052] The method for preparing and using the above-mentioned silicone condensation type two-component encapsulant comprises the following steps:

[0053] Preparatio...

Embodiment 3

[0059] A silicone condensation-type two-component potting glue of this embodiment has a raw material formula as follows in parts by weight:

[0060]

[0061] The above-mentioned formula A component base glue is 50000mPa.s double-ended hydroxypolymethylsiloxane (107 glue of 50000mPa.s), and the plasticizer is 350mPa.s double-ended methylpolymethylsiloxane ( 350mPa.s methyl silicone oil), the viscosity of component A after mixing is 14500mPa.s.

[0062] In component B of the above formula, the modified cross-linking agent is polymethyltriethoxysilane (commercially available CJ-8300, the degree of polymerization is 3-6), and the coupling agent is 3-glycidyl ether oxypropyl methyl di Methoxysilane, the catalyst is dibutyltin dilaurate, the plasticizer is 350mPa.s double-ended methyl polymethylsiloxane, and the mixed viscosity of component B is 218mPa.s.

[0063] The method for preparing and using the above-mentioned silicone condensation type two-component encapsulant comprises ...

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Abstract

The invention relates to a silicone condensation type two-component potting glue and its application. The silicone condensation type two-component potting glue includes A component and B component: the A component, in parts by weight, includes: 80-130 parts of base glue, 5-30 parts of plasticizer A; wherein, The base glue is a double-terminated hydroxyl polysiloxane; the B component, in parts by weight, includes: 10-30 parts of a modified crosslinking agent, 0.5-3 parts of a coupling agent, 0.05-0.5 parts of a catalyst, 15-25 parts of plasticizer B; wherein, the modified cross-linking agent is a methyltriethoxysilane oligomer with a degree of polymerization of 3-8, a methyltrimethoxy oligomer with a degree of polymerization of 3-8 at least one; the mass fraction of the modified cross-linking agent in the gum base is 10% to 25%. Compared with the traditional silicone potting compound, the silicone condensation type two-component potting compound has more excellent mechanical strength and light transmittance, and the degree of color temperature shift is smaller.

Description

technical field [0001] The invention relates to potting glue, in particular to silicone condensation type two-component potting glue and its application. Background technique [0002] As a kind of LED lighting device, LED flexible light bar is widely used. It uses FPC (flexible circuit board) as assembly circuit board, and uses SMD LED for assembly. The FPC material is soft, can be bent, folded, and wound at will, and can be moved and stretched at will in three-dimensional space without breaking. Affected, the luminous color is changeable, dimmable, color change can be controlled, monochrome and RGB effects can be selected, and can bring colorful visual effects to the environment. It has been widely used in furniture, automobiles, advertisements, showcases, and ships. , and urban landscape lighting and other fields. [0003] LED flexible light strip potting glue is also called LED flexible light strip glue. Its construction method is: put the LED flexible light strip flat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J11/08C09J11/06
CPCC08L2205/025C08L2205/03C09J11/06C09J11/08C09J183/04C08L83/04C08K5/5419
Inventor 黄文哲付子恩陈建军刘光华杨敦黄恒超
Owner GUANGZHOU BAIYUN CHEM IND
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