Radiation techniques (electron-beam, gamma-ray, etc.) are usually used for
improving the compatibility between polymer and ingredients in composite ma
terials. Electron-beam pre-irradiation has been used for the first time to
enhance the flame retardance of EVE copolymer. Efforts are being made to de
cline the flammability for EPDM copolymer by EB technique and remarkable re
duction has been attained through a series of treatments: pre-irradiation,
grafting and saponification.