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Addition type transparent flame-retardant pouring sealant formula

A technology of addition molding and potting glue, used in adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve problems such as difficulty, failure, and inability to meet transparent UL flame retardant, achieving good transparency, Good flame retardant effect

Inactive Publication Date: 2015-12-09
SHING HONG TAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is transparent epoxy, PU or silicone, it cannot meet the requirement of being transparent while achieving UL flame retardancy.
Especially the addition-type potting compound, because the platinum catalyst contacts nitrogen, phosphorus, arsenic, tin, etc., it will fail, and the commonly used flame retardants are restricted in use; due to the requirement of high transparency, the commonly used aluminum hydroxide, magnesium hydroxide, boric acid Zinc and other flame retardants are not difficult to use
Therefore, it is more difficult to achieve transparency and flame retardancy.

Method used

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  • Addition type transparent flame-retardant pouring sealant formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Agent A includes:

[0025] Vinyl terminated polysiloxane 70

[0026] Content Fluorovinyl Silicone Oil 30

[0027] Platinum catalyst amount (2500PPM) 0.5

[0028] Agent B includes:

[0029] Vinyl terminated polysiloxane 55

[0030] Content Fluorovinyl Silicone Oil 30

[0031] Hydrogen-containing polysiloxane (0.3% hydrogen content) 15

[0032] Inhibitory dose 0.1

Embodiment 2

[0034] Agent A includes:

[0035] Vinyl terminated polysiloxane 60

[0036] Content Fluorovinyl Silicone Oil 40

[0037] Platinum catalyst amount (2500PPM) 0.5

[0038] Agent B includes:

[0039] Vinyl terminated polysiloxane 40

[0040] Content Fluorovinyl Silicone Oil 45

[0041] Hydrogen-containing polysiloxane (0.3% hydrogen content) 15

[0042] Inhibitory dose 0.1

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Abstract

The invention specifically relates to an addition type transparent flame-retardant pouring sealant formula. A reagent A comprises vinyl-terminated polysiloxane or branched vinyl silicone oil, fluorine-containing vinyl-terminated silicone oil or fluorine-containing branched vinyl silicone oil and a platinum catalyst, wherein the mass ratio of the vinyl-terminated silicone oil or branched vinyl silicone oil to fluorine-containing vinyl-terminated silicone oil or fluorine-containing branched vinyl silicone oil is 100:(30-50); the additive amount of the platinum catalyst is 0.1-1% by mass of the sum of vinyl silicone oil and fluorine-containing silicone oil; a reagent B comprises 50-60wt% of vinyl-terminated polysiloxane or branched vinyl silicone oil, 30-40wt% of fluorine-containing vinyl-terminated silicone oil or fluorine-containing branched vinyl silicone oil, 10-20wt% of hydrogen-containing polysiloxane and 0.1-0.5wt% of an inhibitor, the total of the mass of the components of the reagent B being100et%. By introducing special fluorine-containing vinyl silicone oil matched with vinyl-terminated silicone oil and hydrogen-containing polysiloxane, the transparent flame-retardant pouring sealant is obtained. The sealant has very good flame retardance while good transparency is ensured. The flame retardant grade reaches UL94-V1.

Description

technical field [0001] The invention relates to an addition-type transparent flame-retardant silicone potting compound composition, a preparation method and application thereof, in particular to a formula of an addition-type transparent flame-retardant potting compound. Background technique [0002] With the electronic industry, especially the potting protection of electronic components, LED lamps and circuit boards, as well as the potting of various electronic appliances, such as controller circuit boards, LED light bars, surface light sources, etc. To meet the needs of development, the amount of transparent potting glue is increasing. Whether it is transparent epoxy, PU or silicone, they cannot meet the requirement of being transparent while achieving UL flame retardancy. Especially the addition-type potting compound, because the platinum catalyst contacts nitrogen, phosphorus, arsenic, tin, etc., it will fail, and the commonly used flame retardants are restricted in use;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/07C09J183/08C09J183/05C09J11/06
Inventor 郑新潮
Owner SHING HONG TAI CO LTD