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首页> 外文期刊>Journal of Applied Polymer Science >Model of liquid permeability in swollen composites of superabsorbent polymer and fiber
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Model of liquid permeability in swollen composites of superabsorbent polymer and fiber

机译：高吸收性聚合物和纤维溶胀复合材料的液体渗透性模型

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The liquid permeability of composites of fiber and superabsorbent polymer (SAP) is critical to the proper performance of absorbent hygiene products such as infant diapers. Previous work has focused on empirically improving performance of absorbent composites by modifying the components, but a systematic study of the parameters affecting permeability of these systems has not been published. A good model of permeability would aid our understanding of the complex phenomenon of liquid permeability of pads that change in volume and porosity during swelling. In the present work, a mathematical model of liquid permeability in both gel beds and composites of fiber and gel is developed. The model uses a Carman-Kozeny approach with added calculation of the porosity and specific surface area that result upon swelling of the SAP, as well as subsequent compression of the swollen composite. The model incorporates ten parameters that are necessary to determine the permeability of the system. The implications of the model for improving permeability in absorbent composites are explored. (c) 2006 Wiley Periodicals, Inc.
机译：纤维和超吸收性聚合物（SAP）的复合材料的液体渗透性对于吸收性卫生产品（如婴儿尿布）的正常性能至关重要。先前的工作集中在通过改变组分来凭经验改善吸收性复合材料的性能，但是尚未公开对影响这些系统的渗透性的参数进行系统的研究。一个好的渗透率模型将有助于我们理解在膨胀过程中垫的体积和孔隙率变化的液体渗透率的复杂现象。在本工作中，建立了凝胶床以及纤维和凝胶复合材料中液体渗透性的数学模型。该模型使用Carman-Kozeny方法，并增加了SAP溶胀以及随后对溶胀的复合材料的压缩所产生的孔隙率和比表面积的计算。该模型包含确定系统渗透率所需的十个参数。探索了该模型对提高吸收性复合材料的渗透性的意义。 （c）2006年Wiley Periodicals，Inc.

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