Abstract: MUTUAL IRRADIATION GRAFTING OF LDPE PLATE AND ITS SURFACE ADHESIVITY Rao Zhigomg Xu Ziyan Zang zhihui Li Chaoshun Zeng Xingmiao Wang Binglin（Beijing Radiation Applicaticm Research Center,100012）ABSTRACT The γ- irradiation mutual grafting method is used for modifing the surface adhesivity of LDPEplate.AAC，methanol，Mohr＇s saIt and water are used as monomer chain adjusting agent，inhibitorand solvent respectively.The study shows that the degree of grafting deponds on the tOtal dase，dOserate, monomer concentration and methanol concentration. When the degree of grafting is higer than6．25％，the grafting occurs mostly in the bulk of LDPE plate.The grafting solution can be repcatedlyused if some methanol exists in it.The surface adhesivity of grafting modified LDPE plate is enhanced8一9 times.Key words irradiation grafting LDPE surface moedification adhesivity epoxide resin