The behaviour of melting and recrystallization of irradiated polyethylene has beeninvestigated by using differential scanning calorimetry(DSC),small angle X-ray scattering(SAXS)and wide angle X-ray diffraction(WAXD)techniqties.

• 用差示扫描量热法（DSC），小角X－射线散射（SAXS），广角X－射线衍射（WAXD）等考察了辐照聚乙烯的熔融和重结晶。