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首页> 外文期刊>Journal of Polymers and the Environment >Synthesis of Porous Emulsion-Templated Monoliths Using a Low-Energy Emulsification Batch Mixer
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Synthesis of Porous Emulsion-Templated Monoliths Using a Low-Energy Emulsification Batch Mixer

机译：用低能乳化间歇混合器合成多孔乳液模板整体

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摘要

Emulsion-templated porous monoliths based on castor oil-in-black liquor emulsions have been prepared using a low-energy emulsification technique. Lignins from black liquor polymerize in the continuous phase of the high internal phase emulsion to obtain highly microcellular materials with interconnected open porous structures. A two-step emulsification operating mode was developed in order to increase the maximum value of the castor-oil dispersed volume fraction obtained with the one-step emulsification mode (limited to 53% of the total emulsion volume due to the very high viscosities of the fluids). A rheological study of the black liquor and of the prepared Medium Internal Phase Emulsions, have been conducted. Depending on the emulsification operating mode used, the morphology of the porous monoliths will differ. A rather low mean droplet size (about 6 μm) is obtained with the one-step mode, the two-step technique leads to a broader void size distribution and a further increase of added castor oil (up to 69 %) do not favor the homogeneity of the material.
机译：已经使用低能量乳化技术制备了基于蓖麻油在黑液中的乳剂为模板的多孔整料。来自黑液的木质素在高内相乳液的连续相中聚合，以获得具有相互连接的开放式多孔结构的高度微孔材料。开发了两步乳化操作模式，以增加通过单步乳化模式获得的蓖麻油分散体积分数的最大值（由于乳液的极高粘度，限制在总乳液体积的53％）液体）。已经对黑液和制备的中等内相乳液进行了流变学研究。根据所使用的乳化操作模式，多孔整料的形态将有所不同。单步模式获得的平均液滴尺寸相当低（约6μm），两步技术导致更宽的空隙尺寸分布，并且进一步增加的蓖麻油含量（高达69％）不利于材料的均质性。

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  • 来源
    《Journal of Polymers and the Environment》 |2013年第3期|683-691|共9页
  • 作者

    Claire Forgacz; Sylvain Caubet; Yves Le Guer; Bruno Grassl; Kamal El Omari; Marc Birot; Herve Deleuze;

  • 作者单位

    Institut des Sciences Moleculaires, University of Bordeaux,CNRS-UMR 5255, 351 cours de la Liberation, 33405 Talence,France;

    IPREM Equipe de Physique et Chimie des Polymeres, Universite de Pau et des Pays de l'Adour (UPPA), CNRS UMR 5254,Helioparc, 2 avenue P. Angot, 64053 Pau Cedex 09, France;

    Laboratoire des Sciences de l'lngenieur Appliquees a la Mecanique et au genie Electrique (SIAME), Universite de Pau et des Pays de l'Adour (UPPA), Federation IPRA 2952 CNRS, Bat.D'Alembert, Rue Jules Ferry, BP 7511, 64075 Pau, France;

    IPREM Equipe de Physique et Chimie des Polymeres, Universite de Pau et des Pays de l'Adour (UPPA), CNRS UMR 5254,Helioparc, 2 avenue P. Angot, 64053 Pau Cedex 09, France;

    Laboratoire des Sciences de l'lngenieur Appliquees a la Mecanique et au genie Electrique (SIAME), Universite de Pau et des Pays de l'Adour (UPPA), Federation IPRA 2952 CNRS, Bat.D'Alembert, Rue Jules Ferry, BP 7511, 64075 Pau, France;

    Institut des Sciences Moleculaires, University of Bordeaux,CNRS-UMR 5255, 351 cours de la Liberation, 33405 Talence,France;

    Institut des Sciences Moleculaires, University of Bordeaux,CNRS-UMR 5255, 351 cours de la Liberation, 33405 Talence,France;

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  • 正文语种 eng
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  • 关键词

    Kraft black liquor; Lignins; Low-energy emulsification; Rheological properties; Porous morphologies;

    机译：牛皮纸黑液;木质素;低能耗乳化;流变性能;多孔形态;

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