Physical and mechanical properties of polymer materials with different types of structures based on EVA and rice straw powder

Tr. N. Nguyen, I. D. Simonov-Emel'yanov, A. A. Рihtin
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Abstract

The results of investigation of dependence of physical and mechanical characteristics of disperse-filled polymer composite materials (DFPCM) based on EVA grade 11306-075 and rice straw powder with particle size of ~ 250 microns (RSP) on generalized parameters of their structure are presented. The calculation of the generalized parameters and the classification of DFPCM according to the type of structures were carried out.It has been shown that when filling EVA grade 11306–075 with RSP particles, depending on the type of structure, the tensile strength of DFPCM decreases by ~ 2 times (from 9.4 to 4.51 MPa), the tensile strain by more than ~ 10 times (from 275 up to 8%), and the value of the tensile modulus increases by ~ 18 times (from 42 to 750 MPa).To obtain DFPCM based on EVA filled with rice straw powder with optimal physical and mechanical properties, it is recommended to introduce RSP in the concentration range from 0.18 to 0.45 vol.p.
基于EVA和稻草粉的不同类型结构高分子材料的物理力学性能
研究了EVA等级1106 -075的分散填充聚合物复合材料(DFPCM)和粒径为~ 250微米的稻草粉(RSP)的物理力学特性与广义结构参数的关系。根据结构类型对DFPCM进行了广义参数的计算和分类。结果表明,用RSP颗粒填充EVA等级1106 - 075时,根据结构类型不同,DFPCM的抗拉强度降低了约2倍(从9.4降至4.51 MPa),拉伸应变降低了约10倍(从275降至8%),拉伸模量增加了约18倍(从42降至750 MPa)。为了获得具有最佳物理力学性能的EVA填充稻草粉DFPCM,建议在0.18 ~ 0.45 vol.p的浓度范围内引入RSP。
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