Phase equilibrium and viscosity of polymer solutions in the presence of high pressure gases

高压气体存在下聚合物溶液的相平衡和粘度

• 批准号: 09305053
• 负责人: MASUOKA Hirokatsu
• 金额: $ 24.64万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09305053/
• 关键词: gas solubility; diffusion coefficient; polymer; carbon dioxide; 相平衡

Solubility and diffusivity of gas in polymer are important properties for development and process control of polymer production plant. The gas solubility and diffusivity under high pressures and temperatures are needed for production of polymeric foams, In this work, the solubility and the diffusivity of following systems were investigated.Solubility and diffusivity:Gas : C0ィイD22ィエD2Polymer : polystyrene, polypropylene, high-density polyethylene, poly(butylene succinate), poly(butylene succinate-co-adipate), poly(vinyl acetate)Gas: NィイD22ィエD2Polymer : polystyrene, polypropylene, high-density polyethyleneSolubility :Gas : HCFC-142b, HFC-134a, HFC-152aPolymer : polystyreneThese systems were expected as new polymeric foam materials, since CFCs (chlorofluorocarbons) as conventional physical blowing agents were banned. Experimental results of the solubility were correlated by the Sanchez-Lacombe equation of state in conjunction with a temperature dependent interaction parameter. The interaction parameter determined from fitting the solubility was inversely proportional to absolute temperature. The diffusivities could be correlated with the free volume theory by Stern et al.

聚合物中气体的溶解度和扩散性是聚合物生产装置开发和工艺控制的重要性质。在高压和高温条件下，聚合物泡沫的气体溶解度和扩散性是生产聚合物泡沫所必需的，本文对以下体系的溶解度和扩散性进行了研究。溶解度和扩散性：气体：C0°c / c°c / c°c / c聚合物：聚苯乙烯、聚丙烯、高密度聚乙烯、聚（丁二酸丁二烯）、聚（丁二酸丁二烯-共己二酸）、聚（醋酸乙烯）气体：N°c / c°c / c / d聚合物：聚苯乙烯、聚丙烯、高密度聚乙烯溶解度：气体：HCFC-142b、HFC-134a、hfc -152聚合物：聚苯乙烯由于常规物理发泡剂CFCs（含氯氟烃）被禁止使用，这些体系被期望成为新的聚合泡沫材料。溶解度的实验结果由Sanchez-Lacombe状态方程与温度相关的相互作用参数相关联。通过拟合溶解度确定的相互作用参数与绝对温度成反比。扩散系数可以与Stern等人的自由体积理论相关联。

项目成果

Y.Sato: "Solubility of carbon dioxide and nitrogen in polyolefins and polystyrene under high pressures and temperatures" Proceeding of 5th Meeting on Supercritical Fluids. (in press). (1998)

Y.Sato：“高压和高温下二氧化碳和氮气在聚烯烃和聚苯乙烯中的溶解度”第五届超临界流体会议论文集。

Y.Sato: "Solubilities and Diffusion Coefficients of Carbon Dioxide and Nitrogen in Polyptopylene,High-density Polyethylene,and Polystyrene under HighPressure and temperature"Fluld Phase Eguilibria. 162. 261-276 (1999)

Y.Sato：“高压和高温下二氧化碳和氮气在聚丙烯、高密度聚乙烯和聚苯乙烯中的溶解度和扩散系数”流体相平衡。

Y.Sato: "Solubility and Diffusion Coefficient of Carbon Dloxide in Biodegradable Polymers"5th International Synposioum on Supercritical Flulds. (in press). (2000)

Y.Sato：“可生物降解聚合物中二氧化碳的溶解度和扩散系数”第五届国际超临界流体研讨会。

Y. Sato: "Solubility and Diffusion Coefficient of Carbon Dioxide in Biodegradable Polymers"5th International Symposium on Supercritical Fluids. (in press). (2000)

Y. Sato：“可生物降解聚合物中二氧化碳的溶解度和扩散系数”第五届国际超临界流体研讨会。

Y.Sato: "Solubilities and Diffusion Coefficients of Carbon Dioxide in Biodegradable Polymers"5th International Symposium on Supercritical Fluids. (in press).

Y.Sato：“可生物降解聚合物中二氧化碳的溶解度和扩散系数”第五届国际超临界流体研讨会。