Silicone resin glue for LED encapsulation and preparation method thereof
A technology of LED packaging and silicone resin glue, which is applied in chemical instruments and methods, fibrous fillers, electrical components, etc., can solve the problems of reducing the transparency of silicone resin and losing its use value, and achieves low cost, good compatibility, The effect of simple preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0025] Add 10g of nano-titanium dioxide with a particle size of 80nm into a 250mL four-necked flask filled with 100g of distilled water, and disperse ultrasonically for 20min; place the flask in a water bath and heat it to 70°C, equipped with a thermometer, N 2 Protective device and mechanical stirrer, add 0.1g potassium persulfate and 1g styrene in sequence, stir and react for 5h, filter with filter membrane, wash with ethanol for 3 times, dry in an oven at 90°C to obtain modified nano titanium dioxide;
[0026] Take 0.3g of modified nano-titanium dioxide, add it to a round bottom flask containing 99.7g of phenylvinyl silicone resin, ultrasonically disperse it, stir it mechanically (stirring speed 1000rad / min), and mix it evenly to obtain the silicone resin glue for LED packaging .
[0027] The refractive index of the silicone resin glue for LED encapsulation obtained in this embodiment is 1.56, and the transmittance at the 450nm wavelength place of its 1mm thick standard sam...
Embodiment 2
[0029] Add 10g of nano-titanium dioxide with a particle size of 95nm into a 250mL four-necked flask filled with 200g of distilled water, and disperse ultrasonically for 20min; place the flask in a water bath and heat it to 70°C, equipped with a thermometer, N 2 Protective device and mechanical stirrer, add 0.1g potassium persulfate and 1.5g styrene in sequence, stir and react for 5 hours, filter with membrane, wash with ethanol for 3 times, dry in an oven at 90°C to obtain modified nano-titanium dioxide;
[0030] Take 2.0g of modified nano-titanium dioxide, add it to a round-bottomed flask containing 98g of epoxy-modified silicone resin, ultrasonically disperse it, stir it mechanically (stirring speed 1200rad / min), and mix it evenly to obtain the silicone resin glue for LED packaging .
[0031] The refractive index of the silicone resin glue for LED encapsulation obtained in this embodiment is 1.60, and the transmittance at the 450nm wavelength place of its 1mm thick standard ...
Embodiment 3
[0033] Add 15g of nano-titanium dioxide with a particle size of 80nm into a 250mL four-necked flask filled with 150g of distilled water, and disperse ultrasonically for 20min; place the flask in a water bath and heat it to 70°C, equipped with a thermometer, N 2 Protective device and mechanical stirrer, add 0.2g potassium persulfate and 2g styrene in sequence, stir and react for 5h, filter with membrane, wash with ethanol for 3 times, dry in an oven at 90°C to obtain modified nano-titanium dioxide;
[0034] Take 3.0g of modified nano-titanium dioxide, add it into a round-bottomed flask containing 97g of phenylvinyl silicone resin, ultrasonically disperse, stir mechanically (stirring speed 1500rad / min), and mix evenly to obtain the silicone resin glue for LED packaging.
[0035] The refractive index of the silicone resin glue for LED encapsulation obtained in this embodiment is 1.62, and the transmittance at the 450nm wavelength place of its 1mm thick standard sample is 72.3%, sp...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More