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液态水、苯和壬基乳化剂混合物冲击压缩特性的实验研究

DOI: 10.11858/gywlxb.2008.01.014, PP. 62-66

Keywords: 混合规则,,,壬基酚聚氧乙烯醚,冲击压缩

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Abstract:

利用二级轻气炮在3.75~57.87GPa压力范围内,对体积比为10∶10∶1的液态水-苯-壬基酚聚氧乙烯醚混合体系进行了动高压加载实验,获得了10个Hugoniot数据。拟合结果表明,该混合体系的D-u关系可近似用直线方程D=1.407+1.503up描述,拟合精度约为0.102。混合体系H2O-C6H6-C35H64O11的冲击压缩实验结果基本符合体积相加原理,而在给定的实验压力区间内,冲击绝热曲线发生多次拐折的事实意味着该系统可能在6GPa、10GPa和30GPa压力点附近发生了多次结构性相变。另外,还讨论了Lawrence-Berthlot混合规则中修正因子对高密度条件下指数-6型相互作用势排斥部分的影响。

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