The short-term tensile creep behaviors of EVA cable highly filled with powder under different temperature,material ratio and stress levels were studied through tensile creep test.Burgers model was applied to simulate the creep behaviors of the composites.The results showed that the instantaneous elastic modulusEm,retardant elastic modulusEkandηkviscosity were obvious correlative to the temperature and stress levels. When the weight ratio of metal hydroxide and EVA was 3∶2,a synergistic effect between Al(OH)3and Mg(OH)2was confirmed by improving the ability of the composites deformation.In the short term,the predicted results from Burgers model and Findley power law were in good agreement with the experimental results.In addition,Burgers model clearly showed a better prediction than the one using Findley power law,while the Findley power law was of the good predicting ability over large time scale.The present study can be practically significant to the optimizing formula of special halogen-free flame retardant EVA cable compound,as well as the further study on the short-term tensile creep behaviors of EVA cable highly filled with powder.
