ANALYSIS OF PVC SLURRIES DRYING BY THERMOGRAVIMETRY

摘要：

　　A thermogravimetry analysis (TGA) was carried out to characterize the drying rates of different PVC (polyvinyl chloride) slurries containing beads with variable inner porosities.For all PVC grades we observe three stages of the water drying rates,which we ascribe to different types of water: free water in the slurry,water at the beads surface and water inside the pores.The different PVC grades show marked differences of the drying times of their inner pores.We analyze this result by comparing our results with numerical simulations of the drying rates in model pore systems with linear and curvilinear channels.The contribution of the physical chemical properties at the beads surface is also discussed.

关键词： PVC beads drying internal porosity TGA numerical simulation model pores

作者: P.Agaciak S.Yahiaoui M.Djabourov T.Lasuye M.Branly

作者单位: Thermal Physics Laboratory,ESPCI- ParisTech.10 rue Vauquelin Paris Cedex 5,75231 France IneosChlorVinyls Chemin des soldats,Mazingarbe,62670,France

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-4

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）