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首页> 外文期刊>Journal of Hazardous Materials >Adsorption and adhesiveness of kapok fiber to different oils
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Adsorption and adhesiveness of kapok fiber to different oils

机译：木棉纤维对不同油脂的吸附和粘附性

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摘要

Adsorption and adhesiveness of single kapok to various oils, such as diesel, vegetable oil, used motor oil and motor oil were quantitatively evaluated by size and adhesive energy distribution of adsorbed oil droplets on fiber via drop-on-fiber micro-sorption experiments based on Carroll's theory of droplet morphology. Meanwhile, another micro polyester fiber was investigated as comparison. It was found that kapok fibers exihibited low surface energy of 40.64 mN/m with highly hydrophobicity and oil wettability. It had high water contact angle up to 151 degrees, adsorbing four oils with average droplet size varying from emulsified state(0.1-25 mu m) to dispersed state (25-100 mu m). The average adhesive energies of kapok to four oils were 3.78 x 10(-11)-9.40 x 10(-11) J, with the highest for vegetable oil. Compared with kapok, polyester fiber adsorbed a large number of smaller oil droplets with their average size within emulsified state for its large specific surface area contributed by micro-fine of the fiber, but showed bad adhesiveness to retain the adsorbed oils with average droplet adhesive energy among 1.49 x 10(-11)-2.27 x 10(-11) J due to its relative higher surface energy of 59.15 mN/m. It is more suitable to be used as filter for secondary fine filtration under low inflow rate. (C) 2015 Elsevier B.V. All rights reserved.
机译：通过基于纤维滴的微吸附实验，通过尺寸和吸附油滴在纤维上的粘附能分布，定量评估了单个木棉对各种油（例如柴油，植物油，废机油和机油）的吸附和粘附性。卡罗尔的液滴形态理论。同时，研究了另一种微聚酯纤维作为比较。发现木棉纤维表现出40.64mN / m的低表面能，具有高疏水性和油润湿性。它具有高达151度的高水接触角，可吸附四种油，平均油滴大小从乳化态（0.1-25μm）到分散态（25-100μm）不等。木棉对四种油的平均粘合能为3.78 x 10（-11）-9.40 x 10（-11）J，其中植物油最高。与木棉相比，聚酯纤维吸附了许多较小的油滴，其平均粒径在乳化状态下，这是由于其微细的纤维具有较大的比表面积，但显示出差的粘附性，以平均的液滴粘附能保留了吸附的油在1.49 x 10（-11）-2.27 x 10（-11）J之间，因为其相对较高的表面能为59.15 mN / m。它更适合用作低流量下的二次精滤的过滤器。 （C）2015 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2015年第15期|101-111|共11页
  • 作者

    Dong Ting; Xu Guangbiao; Wang Fumei;

  • 作者单位

    Donghua Univ, Coll Text, Shanghai 201620, Peoples R China;

    Donghua Univ, Coll Text, Shanghai 201620, Peoples R China|Donghua Univ, Key Lab Textile Sci & Technol, Minist Educ, Shanghai 201620, Peoples R China;

    Donghua Univ, Coll Text, Shanghai 201620, Peoples R China|Donghua Univ, Key Lab Textile Sci & Technol, Minist Educ, Shanghai 201620, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Kapok fiber; Oily water separation; Oil adsorption; Droplet size; Adhesive energy;

    机译：木棉纤维;油水分离;吸油;液滴尺寸;黏附能;

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