Istanbul, Turkey – A group at the department of chemistry at Marmara University has developed a new type of flame retardant. The autocatalytic reactive FRs may have potential in rigid PU foams.
Autocatalytic reactive FRs may have potential in rigid PU foams
The team synthesised two different new flame retardants containing phosphorous and nitrogen. Both comprised a tertiary amine connected to a phosphine oxide via a spacer moiety.
They were incorporated into PU foam formulation at 2.5, 5 and 10%, and their effects on the foams’ thermal, mechanical, flame retardancy and physical properties were assessed, along with their catalytic performance.
Both displayed good catalytic activity, and reasonable flame retardancy, depending on the nature and concentration of the FR. They were non-leaching, and the surfaces of the foams were rendered hydrophilic. The scientists believe that the new FRs may have potential in industrial applications.
The work has been published in the journal Materials Chemistry & Physics.