Abstract:As communication cables, some reasons of difference on interface interaction between LLDPE-g-MAH/EAA and LLDPE-g-MAH/EVA were studied from dynamic rheological behaviors and temperature dependence. The results show that the shear strength and peel strength of LLDPE-g-MAH/EAA blends can meet national standards and increase by about 22.0 % and 80.8 % than those of LLDPE-g-MAH/EVA blends, respectively; the interfacial compatibility of LLDPE-g-MAH/EAA blends is better than that of LLDPE-g-MAH/EVA, with the temperature increasing, the relaxation index λ of LLDPE-g-MAH/EAA blends increases at first and then decreases, the temperature dependence of LLDPE-g-MAH/EAA is the same as one component LLDPE-g-MAH, the relaxation index λ of LLDPE-g-MAH/EVA blends is irrelevant to do with temperature; in the range of whole frequency, the time-temperature superposition (TTS)curves of LLDPE-g-MAH/EAA can not overlap,the TTS curves of LLDPE-g-MAH/EVA can overlap completely in the high frequency and can not overlap the in low frequency. With the temperature increasing, the relaxation time of LLDPE-g-MAH/EAA reduces gradually, the relaxation time of LLDPE-g-MAH/EVA is irrelevant to do with temperature.