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Thursday, 19 September 2019
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Raw materials & technologies, Applications

Smoke suppression of crosslinked resins and fire retardants in intumescent coatings

Wednesday, 8 June 2016

Chinese researchers from Qingdao University of Science and Technology have investigated the smoke production behaviours of crosslinked epoxy/polyamide resins and intumescent fire retardants in epoxy-based intumescent fire-retardant coatings.

The smoke production behaviour of crosslinked epoxy/polyamide resins and intumescent fire retardants in intumescent coatings has been investigated. Source: Rike/pixelio.de
The smoke production behaviour of crosslinked epoxy/polyamide resins and intumescent fire retardants in intumescent coatings has been investigated....

The static and dynamic smoke production behaviours indicates that the intumescent fire retardant (IFR) has an excellent smoke suppression effect on the crosslinked epoxy/polyamide resin (EP/PA) by forming a protective char layer in the late combustion stage, while the epoxy crosslinked structure in the epoxy-based intumescent fire-retardant coating (IFR-EP) can enhance the thermal stability and reduce smoke production in the early combustion stage.

IFR suppresses production of toxic gases

In addition, according to the discussion of pyrolysis gas products, the IFR can effectively suppress the production of toxic and inflammable gases during the combustion process.

The study is published in: Journal of Applied Polymer Science.

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