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A kind of flame-retardant LED light bar silica gel and its preparation method and application

A technology of LED light strips and silica gel, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problem of no flame retardant effect, achieve good appearance, improve safety, and overcome the flame retardant effect. Effect

Active Publication Date: 2016-06-01
兆舜科技(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy resins, polyurethanes, and silicone light strip adhesives currently on the market do not have flame-retardant effects. It is an urgent problem to be solved in this industry to develop high-performance flame-retardant silicone light strips. Great challenge and high market value

Method used

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  • A kind of flame-retardant LED light bar silica gel and its preparation method and application
  • A kind of flame-retardant LED light bar silica gel and its preparation method and application
  • A kind of flame-retardant LED light bar silica gel and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Preparation of silica gel for flame retardant LED light bar of the present invention

[0033] The formula of each raw material is:

[0034] Agent A:

[0035] Methyl MQ Silicone 25g

[0036] 107 silicone rubber 64.5g

[0037] 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide 0.5g;

[0038] Agent B:

[0039]

[0040] 1) Put the methyl MQ silicone resin and 107 silicone rubber into a 2L four-necked glass reaction bottle, start stirring, set the speed at 300r / min; raise the temperature to 100°C, and stir for 30 minutes until the methyl MQ silicone resin is completely dissolved In 107 silicone rubber; after cooling down, add 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and stir for 20 minutes to prepare Agent A.

[0041] 2) Put methyl orthosilicate prepolymer, phenyltriethoxysilane, aminopropyltriethoxysilane, bis(ethyl acetoacetate) diisopropyl titanate into a glass bottle, stir well Uniform, formulated as agent B

[0042] 3) Fully mix Agent A and...

Embodiment 2

[0043] Example 2 Preparation of silica gel for flame-retardant LED light bar of the present invention

[0044] The formula of each raw material is:

[0045] Agent A:

[0046] Methyl MQ Silicone 35g

[0047] 107 silicone rubber 72.5g

[0048] 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide 2.5g;

[0049] Agent B:

[0050]

[0051] 1) Put the methyl MQ silicone resin and 107 silicone rubber into a 2L four-necked glass reaction bottle, start stirring, set the speed at 300r / min; raise the temperature to 100°C, and stir for 30 minutes until the methyl MQ silicone resin is completely dissolved In 107 silicone rubber; after cooling down, add 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and stir for 20 minutes to prepare Agent A.

[0052] 2) Put methyl orthosilicate prepolymer, phenyltriethoxysilane, aminopropyltriethoxysilane, bis(ethyl acetoacetate) diisopropyl titanate into a glass bottle, stir well Uniform, formulated as agent B

[0053] 3) Fully mix Agent A and...

Embodiment 3

[0054] Example 3 Preparation of silica gel for flame-retardant LED lamp strips of the present invention

[0055] The formula of each raw material is:

[0056] Agent A:

[0057] Methyl MQ Silicone 30g

[0058] 107 silicone rubber 68.5g

[0059] 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide 1.5g;

[0060] Agent B:

[0061]

[0062] 1) Put the methyl MQ silicone resin and 107 silicone rubber into a 2L four-necked glass reaction bottle, start stirring, set the speed at 300r / min; raise the temperature to 100°C, and stir for 30 minutes until the methyl MQ silicone resin is completely dissolved In 107 silicone rubber; after cooling down, add 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and stir for 20 minutes to prepare Agent A.

[0063] 2) Put methyl orthosilicate prepolymer, phenyltriethoxysilane, aminopropyltriethoxysilane, bis(ethyl acetoacetate) diisopropyl titanate into a glass bottle, stir well Uniform, formulated as agent B

[0064] 3) Fully mix Agent A a...

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Abstract

The invention discloses flame-retardant LED (light-emitting diode) light bar silica gel, as well as a preparation method and application thereof. The flame-retardant LED light bar silica gel is prepared from an agent A and an agent B, wherein the agent A is mainly prepared from the following raw materials in parts by weight: 25-35 parts of methyl MQ silicon resin, 64.5-72.5 parts of 107 silicone rubber and 0.5-2.5 parts of a halogen-free flame retardant; the agent B is prepared from the following raw materials in parts by weight: 20-30 parts of a methyl silicate prepolymer, 67-77 parts of phenyltriethoxysilane, 2-4 parts of aminopropyltriethoxysilane and 0.02-0.04 part of a titanate complex; the weight ratio of the agent A to the agent B is 4 to 1. The flame-retardant LED light bar silica gel disclosed by the invention is a colorless and transparent solution before curing, is good in appearance after curing, can reach a grade V1 flame-retardant effect, and can meet the flame-retardant requirements on LED light bar glue at present, overcome the defect of the flame-retardant effect of an existing light bar glue material, and improve the safety of LED light bars.

Description

technical field [0001] The invention belongs to the field of chemical materials, and relates to a silica gel for LED light bars and a preparation method thereof, in particular to a flame-retardant silica gel for LED light bars and a preparation method thereof. Background technique [0002] With the vigorous development of LED lighting, LED strip glue has become the focus of domestic and foreign scientific research workers. [0003] At present, the light strip adhesives commonly used in the market for LED flexible light strips are mainly epoxy resin light strip glue, polyurethane light strip glue and silicone light strip glue. Defects. Among them, the most commonly used epoxy resin light strip glue has good adhesion, but it will turn yellow when exposed to high temperature, and it is easy to become brittle and cracked, which not only affects the perspective of LED lights, but also affects the aesthetics; polyurethane light strip glue also has good Good adhesiveness, but it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/04C09J11/06
Inventor 陈正旺刘金明黎忠林
Owner 兆舜科技(广东)有限公司