Transparent organosilicone glue for COB (chip on board)-LED (light-emitting diode) encapsulation and preparation method thereof
A technology of COB-LED and organic silica gel, which is applied in the direction of adhesives, adhesive additives, electrical components, etc., can solve the problems of yellowing, poor adhesion of silicone potting adhesives, and affecting aesthetics, etc., to achieve good hardness and adhesion Excellent performance and light transmittance
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[0031] Example 1
[0032] A transparent organic silica gel for COB-LED potting. Its raw material formula is composed of the following components by weight:
[0033]
[0034]
[0035] Wherein, the base material is vinyl silicone oil with a viscosity of 9000 mPa·s; the structural formula of the base material is shown in general formula (I):
[0036]
[0037] In the above general formula (I), m=300 and n=300.
[0038] Wherein, the modified MQ resin is a vinyl MQ resin, and the vinyl content is 3%;
[0039] The hydrogen content of the hydrogen-containing silicone oil is 0.9%; the structural formula of the hydrogen-containing silicone oil is shown in the general formula (II):
[0040]
[0041] In the above general formula (II), p=75 and q=50;
[0042] The inhibitor uses 1-butyn-3-ol;
[0043] The catalyst is a Castel platinum catalyst (chemical name: platinum (O) divinyl tetramethyl disiloxane solution), and the platinum content is 3000 pmm;
[0044] The coupling agent is 3-(2,3-glycidoxy)propyl...
Example Embodiment
[0048] Example 2
[0049] A transparent organic silica gel for COB-LED potting. Its raw material formula is composed of the following components by weight:
[0050]
[0051] Wherein, the base material is vinyl silicone oil with a viscosity of 8000mpa·s; the structural formula of the base material is shown in general formula (I):
[0052]
[0053] In the above general formula (I), m=300 and n=300.
[0054] Wherein, the modified MQ resin is a vinyl MQ resin, and the vinyl content is 3%;
[0055] The hydrogen content of the hydrogen-containing silicone oil is 0.9%; the structural formula of the hydrogen-containing silicone oil is shown in the general formula (II):
[0056]
[0057] In the above general formula (II), p=90, q=70;
[0058] The inhibitor uses 1-butyn-3-ol;
[0059] The catalyst is a Castel platinum catalyst (chemical name: platinum (O) divinyl tetramethyl disiloxane solution), and the platinum content is 3000 pmm;
[0060] The coupling agent is 3-(2,3-glycidoxy)propyltrimethoxysil...
Example Embodiment
[0064] Example 3
[0065] A transparent organic silica gel for COB-LED potting. Its raw material formula is composed of the following components by weight:
[0066]
[0067] Wherein, the base material is vinyl silicone oil with a viscosity of 8500mpa·s; the structural formula of the base material is shown in general formula (I):
[0068]
[0069] In the above general formula (I), m=400 and n=200.
[0070] Wherein, the modified MQ resin is a vinyl MQ resin, and the vinyl content is 2%;
[0071] The hydrogen content of the hydrogen-containing silicone oil is 0.8%; the structural formula of the hydrogen-containing silicone oil is shown in general formula (II):
[0072]
[0073] In the above general formula (II), p=55, q=55;
[0074] The inhibitor uses 1-hexyn-3-ol;
[0075] The catalyst is a Castel platinum catalyst (chemical name: platinum (O) divinyl tetramethyl disiloxane solution), and the platinum content is 3000 pmm;
[0076] The coupling agent is 3-(2,3-glycidoxy)propyltrimethoxysilane....
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