Is it possible to use chemical solutions to increase intimacy between the surface of the polymer and the flame retardant so that the obstacle-impeding layer of flame on the surface of the polymer is made up?
Yes,We can improve the flame retardant by using Boron containing plasma polymer deposition on the film surface showed an improvement of flame retardant.
by "chemical solutions" I think you mean grafting, if so, this is the best way and option to enhence the performance of the flame-retandant thin layer, since by doing this you solve many problems related to the cohesion-coherance, increased performance efectiveness life, and lost (by migration for e.g.) of the protecting agent. Regards