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Silicone adhesive three curing mechanisms

17 Jan 2020

Silicone adhesive three curing mechanisms

What is the silicon adhesive curing mechanism?

Silicone adhesive three curing mechanisms: silicone adhesive according to the curing mechanism can be divided into: heating curing type (hot curing glue), room temperature curing RTV silicone glue (condensation type) and addition reaction adhesive three categories.

Curing mechanism of heating vulcanized silicone adhesive:

The core material of cl-24/26ab silica gel adhesive is polysiloxane with high molecular weight and peroxide is used as cross-linking agent.

The mechanism is the radical cross-linking reaction induced by peroxides.

Typically employed to solid or liquid silicone rubber and metal, plastic material forming.

solid or liquid silicone rubber and metal

Curing mechanism of RTV silicone adhesive:

Low molecular weight polysiloxane was utilized to seal the hydroxyl group.

Can be separated into a single component of silicone adhesive and two components of silicone adhesive.

Curing mechanism of one-component room temperature vulcanized silica gel kn-300: the hydroxyl group in the blue meets the hydro-gas in the air to be vulcanized and formed, hydrolyzes to the unstable hydroxyl group, and then condenses with the cross-linking agent.

Different cross-linking agents can be divided into the following four types:

(1) diabetic acid type: KANGLIBNAG kn-300n, kn-300x

(2) dioxide type: kn-300a, kn-300t and kn-300b /H

(3) dealcoholization type

(4) decision type

Curing mechanism of two-component RTV silica gel adhesive:

Mechanism of condensed silica gel adhesive: hydroxyl in silica gel adhesive is formed by condensation reaction of alkoxy group on catalyst (organotin salt, such as tin dibutyllaurate, stannous oxalate, etc.) and cross-linking agent (alkoxy silane, such as ethyl orthosilicate or its partial hydrolysate).

Dealcoholization is the most common type.

Pressure-sensitive adhesive curing mechanism of molded silica gel:

Kl-6634 / kl-6638 is linked by a platinum catalyst.

There are no byproducts in the curing process, but it is not difficult to poison the catalyst, so it is necessary to avoid contact with N, S, P and other elements.

KANGLIBANG is to creat solution for your problem with bonding silicone, welcome customer inquiry to us.

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H Building ,Xinwei The 3rd Industrial Park,Dalang Street,Longhua New District , Shenzhen City ,Guangdong Province ,China

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