摘要
针对现有高分子等温物态方程形式多样且繁杂,判断物态方程适用性困难的问题,通过理论分析,建立了8个等温物态方程的自洽性判据,并通过B'∞=-1的条件,降低了等温物态方程参数的数量。通过代数原理,建立了物态方程参数数量和B(n)0的对应关系,提出高分子等温物态方程适用性的判断原则。对25个常用等温物态方程和12种高分子材料的数据进行验证,结果表明:在2参数方程中,Spencer方程优于其他方程,而Yan方程最具有发展潜力。
Aiming at the problem that the existing polymer isothermal equation of state has various and complicated forms,and it is difficult to judge the applicability of the equation of state,eight self consistency criteria of isothermal equation of state are established through theoretical analysis,and the number of parameters of isothermal equation of state is reduced through the condition B'∞=-1.Based on the algebraic principle,the corresponding relationship between the number of parameters and B(n)0 of the equation of state is established.The judgment principles for the applicability of the polymer isothermal equation of state are proposed.The data of 25 common isothermal equations of state and 12 kinds of polymer materials are verified.The results show that among the two parameter equations,Spencer equation is superior to other equations,and Yan equation has the most development potential.
作者
温原
WEN Yuan(Zhejiang Rotoun Plastic Technology Co.,Ltd.,Ningbo 315323,Zhejiang Province,China)
出处
《上海塑料》
2023年第1期44-53,共10页
Shanghai Plastics
关键词
等温物态方程
高分子
适用性原则
自洽性
独立参数数量
拟合精度
isothermal equation of state
high polymer
applicability principle
self consistency
number of independent parameters
fitting accuracy
