Solubility and diffusivity of CO2 in polypropylene/micro-calcium carbonate composites |
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| Affiliation: | 1. Realistic Display Research Group, Electronics and Telecommunications Research Institute, Daejeon, 34129, Republic of Korea;2. POSTECH Organic Electronics Laboratory, Polymer Research Institute, Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea;3. Department of Energy Engineering, Hanyang University, Seoul, 04763, Republic of Korea;1. School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, People’s Republic of China;2. Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing 100048, People’s Republic of China;1. Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111, Budapest, Hungary;2. Unité Matériaux et Transformations – UMR CNRS 8207, ENSCL, University of Lille, Av. Mendeleiev - CS 90108, 59652, Villeneuve d''Ascq Cedex, France;1. Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan;2. Research Institute for Nanomaterials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8565, Japan;1. CEA, DEN, DTCD, SPDE, Laboratoire des Procédés Supercritiques et de Décontamination, F-30207 Bagnols sur Cèze, France;2. Université de Lyon, CNRS, UMR5223, Ingénierie des Matériaux Polymères, F-42023 Saint-Etienne, France;3. Centre Technique de Conservation des Produits Agricoles (CTCPA), Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France;4. Université de Lyon, Université Lyon 1-ISARA Lyon, Laboratoire de Bioingénierie et Dynamique Microbienne aux Interfaces Alimentaires (BioDyMIA, EA n°3733), IUT Lyon 1 site de Bourg en Bresse, Technopole Alimentec, rue Henri de Boissieu, F-01000 Bourg en Bresse, France;1. Ningbo Key Lab of Polymer Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang Province 315201, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario M5S 3G8, Canada |
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| Abstract: | This work is aimed at studying the effects of the fillers and interface bonding condition between the fillers and polymer matrix on the solubility and diffusivity of CO2 in polypropylene (PP)/Micro-calcium carbonate (MicroCaCO3) composites. The solubility of CO2 in PP and its composites containing 5% and 10% MicroCaCO3 was determined precisely by using magnetic suspension balance (MSB) combined with experimental swelling correction at 200 and 220 °C and CO2 pressures up to 22 MPa. It was found that the solubility of CO2 in the PP/MicroCaCO3 composites without the interface compatibilizer increased with increasing the filler content, while the CO2 solubility remained almost unchanged in PP composites with compatibilizer. The Henry's law and a modified Henry's law were used to well correlate the solubility of CO2 in the PP composites with and without the interface compatibilizer, respectively. The diffusion coefficient of CO2 in the PP composites was found to decrease with increasing the filler content. The mutual diffusion coefficients of CO2 in the PP composites can be correlated within an average relative deviation of 10% by the free volume model proposed by Kulkarni and Stern with a parameter accounting for the barrier effect of the filler. |
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