填充型EVA复合材料蠕变行为的研究
发布时间：2018-09-19 14:40
【摘要】：以典型球形填料Ca CO3与乙烯-醋酸乙烯共聚物(EVA)制备填充型EVA复合材料。通过对复合材料试样进行拉伸蠕变试验,研究球形填料填充的EVA复合材料在不同的温度下的短期蠕变行为。结果表明,四元件蠕变模型可以很好地模拟填充型EVA材料的实际蠕变形变曲线,相关系数R在0.98以上。填充型EVA复合材料的高弹模量和黏度表现出温度的依赖性。根据时-温等效原理,依据短时期测得的复合材料蠕变数据可预测材料长时间的蠕变行为,可为EVA复合材料长期使用的稳定性和有效性评价提供了参考依据。
[Abstract]:Filled EVA composites were prepared from typical spherical filler Ca CO3 and ethylene vinyl acetate copolymer (EVA). The short term creep behavior of EVA composites filled with spherical fillers at different temperatures was studied by tensile creep test. The results show that the four-element creep model can well simulate the actual creep deformation curves of filled EVA materials, and the correlation coefficient R is above 0.98. The high elastic modulus and viscosity of filled EVA composites show temperature dependence. According to the principle of time-temperature equivalence, the creep behavior of EVA composites over a long period of time can be predicted according to the creep data measured in a short period of time, which can provide a reference for the evaluation of the stability and effectiveness of EVA composites in long-term use.
【作者单位】： 四川大学高分子科学与工程学院;
【分类号】：TB332
本文编号：2250427
[Abstract]:Filled EVA composites were prepared from typical spherical filler Ca CO3 and ethylene vinyl acetate copolymer (EVA). The short term creep behavior of EVA composites filled with spherical fillers at different temperatures was studied by tensile creep test. The results show that the four-element creep model can well simulate the actual creep deformation curves of filled EVA materials, and the correlation coefficient R is above 0.98. The high elastic modulus and viscosity of filled EVA composites show temperature dependence. According to the principle of time-temperature equivalence, the creep behavior of EVA composites over a long period of time can be predicted according to the creep data measured in a short period of time, which can provide a reference for the evaluation of the stability and effectiveness of EVA composites in long-term use.
【作者单位】： 四川大学高分子科学与工程学院;
【分类号】：TB332
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