CIESC Journal

• 化工学报 • 上一篇    下一篇

聚合物溶液汽液相平衡测定及关联

冯嵬,汪文川,冯志豪   

  1. 北京化工大学化学工程学院!北京100029,北京化工大学化学工程学院!北京100029,燕山石油化工公司胜利橡胶厂!北京102550
  • 出版日期:1998-04-25 发布日期:1998-04-25

MEASUREMENTS AND CORRELATION OF VAPOR-LIQUID EQUILIBRIA FOR POLYMER SOLUTIONS

Feng Wei;Wang Wenchuan;Feng Zhihao(College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029)(Shengli Rubbery Factory,Yanshan Petrol-Chemical Company,Beijing 102550)   

  • Online:1998-04-25 Published:1998-04-25

摘要: 建立了一套用差压法测定聚合物溶液汽液相平衡数据的实验装置.用乙醇纯溶剂及聚苯乙烯/甲苯溶液作为标准体系,对实验装置进行了校核.在温度范围为303.15K~333.15K及常压下,用本实验装置测定了4种聚合物(聚苯乙烯,聚氯乙烯,聚乙二醇,聚甲基丙烯酸甲酯)+6种溶剂(间-二甲苯,水,氯仿,乙酸乙酯,2-丁酮,环己酮)的14个二元体系汽液平衡数据,用简化空穴理论状态方程对实验数据进行了关联.

Abstract: A differential pressure apparatus was established for the measurements of vapor-liquid equilibria(VLE)for polymer-solvent solutions,Pure ethanol and polystyrene-toluene solution were used for the test of the apparatus.Fifteen sets of VLE data were measured in a temperature range from 303.15K~ 333.15K for the binary systems:polystyrene+ethyl acetate,polystyrene+m-xylene,polystyrene+cyclohexanone,poly(vinyl chloride)(PVC)+cyclohexanone,PVC+2-butanone,Poly(methyl methacrylate)(PMMA)+ chloroform,PMMA+cyclohexanone,poly(ethylene glycol)(PEG)+water,PEG+chloroform.The simplified hole theory equation of state proposed by this group was used to correlate accurately the data measured.

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