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Impact of polymer processing on sorption of benzaldehyde vapor in amorphous and semicrystalline polypropylene

机译:聚合物加工对无定形和半结晶聚丙烯中苯甲醛蒸气吸附的影响

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摘要

In this study, organic vapor sorption properties of different polypropylene (PP) forms (resin, sheet, thermoformed sheet, and atactic PP) at 25 degrees C were investigated. The sorption of benzaldehyde at five vapor activities was studied by using a continuous gravimetric method. The sorption of benzaldehyde vapor in PP exhibited different behaviors among resin, sheet, and polyhedron thermoformed sheet. The experimental results demonstrated that the extrusion and thermoforming processes used for forming these parts had a great impact on the sorption behavior because of the changes in surface and bulk morphologies, especially at high vapor activities. (C) 2008 Wiley Periodicals, Inc.
机译:在这项研究中,研究了不同聚丙烯(PP)形式(树脂,片材,热成型片材和无规聚丙烯)在25摄氏度下的有机蒸气吸附性能。用连续重量法研究了苯甲醛在五种蒸气活性下的吸附。在树脂,片材和多面体热成型片材中,PP中苯甲醛蒸气的吸附表现出不同的行为。实验结果表明,由于表面和本体形态的变化,尤其是在高蒸气活度下,用于形成这些零件的挤压和热成型工艺对吸附行为有很大影响。 (C)2008 Wiley期刊公司

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