Transparent two-component organic silicon pouring sealant for LED and preparation method thereof

A silicone potting glue, transparent technology, applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of poor flexibility and tensile properties, poor high temperature resistance, poor moisture resistance, etc., to achieve tensile properties and flexibility Enhanced performance, excellent shock absorption, wide operating temperature range

Active Publication Date: 2013-01-02
深圳天鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a transparent two-component silicone potting glue for LED and its preparation method, aiming at solving the problem of poor high temperature resistance, poor moisture resistance, glue-like hairiness of existing LED packaging materials. Problems of brittleness, flexibility and poor tensile properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Take 100g of vinyl silicone oil with a viscosity of 400 centipoise, 5g of methyl vinyl MQ silicone resin, and 20g of hydrogen-containing silicone oil with a viscosity of 200 centipoise, mix them in a kneader, heat up to 100°C, and treat with vacuum -0.06MPa for 1.5 hours , to obtain component A. Take 100g of vinyl silicone oil with a viscosity of 400 centipoise and 0.01g of platinum catalyst, mix them in a planetary stirring tank, heat up to 100°C, and treat at -0.06MPa vacuum for 1.5 hours to form component B. Before use, prepare A and B components and pack them separately for storage. When using, mix them according to the weight ratio of 1:1, vacuum defoam for 5 minutes, package the LED lamps, and then let them stand at room temperature for 2-4 hours. Fully cured.

Embodiment 2

[0055] Take 100g of vinyl silicone oil with a viscosity of 1000 centipoise, 10g of methylvinyl MQ silicone resin, and 30g of hydrogen-containing silicone oil with a viscosity of 100 centipoise, mix them in a kneader, heat up to 100°C, and treat with vacuum -0.06MPa for 2 hours , to obtain component A. Take 100g of vinyl silicone oil with a viscosity of 1000 centipoise and 0.1g of platinum catalyst, mix them in a planetary stirring tank, raise the temperature to 100°C, and treat with vacuum -0.06MPa for 2 hours to form component B. Before use, prepare A and B components and pack them separately for storage. When using, mix them according to the weight ratio of 1:1, vacuum defoam for 5 minutes, package the LED lamps, and then let them stand at room temperature for 2-4 hours. Fully cured.

Embodiment 3

[0057] Take 100g of vinyl silicone oil with a viscosity of 4000 centipoise, 20g of methyl vinyl MQ silicone resin, and 40g of hydrogen-containing silicone oil with a viscosity of 50 centipoise, mix them in a kneader, heat up to 100°C, and treat with vacuum -0.06MPa for 2.5 hours , to obtain component A. Take 100g of vinyl silicone oil with a viscosity of 4000 centipoise and 0.5g of platinum catalyst, mix them in a planetary stirring tank, raise the temperature to 100°C, and treat with vacuum -0.06MPa for 2.5 hours to form component B. Before use, prepare A and B components and pack them separately for storage. When using, mix them according to the weight ratio of 1:1, vacuum defoam for 5 minutes, package the LED lamps, and then let them stand at room temperature for 2-4 hours. Fully cured.

[0058] Comparative sample

[0059] Take 100g of vinyl silicone oil with a viscosity of 4000 centipoise and 40g of hydrogen-containing silicone oil with a viscosity of 50 centipoise, mix ...

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PUM

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Abstract

The invention discloses a transparent two-component organic silicon pouring sealant for LED and a preparation method thereof. The pouring sealant comprises a component A and a component B mixed according to a mass ratio of 1:1. The component A comprises vinyl silicone oil, hydrogen-containing silicone oil and methyl vinyl MQ silicone resin in a mass ratio of 100:5-20:20-50; and the B component comprises vinyl silicone oil and a platinum catalyst in a mass ratio of 100:0.01-1.

Description

technical field [0001] The invention relates to the field of potting adhesive materials, in particular to a transparent two-component silicone potting adhesive for LEDs with strong transparency, good mechanical properties and good heat and humidity resistance and a preparation method thereof. Background technique [0002] At present, low-cost epoxy resin materials are mostly used in LED potting adhesives, but epoxy resins have poor high temperature resistance and moisture resistance. Poor high temperature resistance can easily damage components and shorten the service life of components, while poor moisture resistance can easily cause water vapor to easily enter the interior of components, causing short circuits and other problems. With the vigorous development of the LED lighting industry, lighting-level LED devices with high power, high brightness, and long life requirements continue to emerge, and a high-performance packaging material is needed to meet the requirements of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05H01L33/56
Inventor 丁之李培曾延辉
Owner 深圳天鼎新材料有限公司
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