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首页> 外文期刊>Journal of Applied Polymer Science >Progressive Morphology Development to Produce Multilayer Films and Interpenetrating Blends by Chaotic Mixing
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Progressive Morphology Development to Produce Multilayer Films and Interpenetrating Blends by Chaotic Mixing

机译:逐步形态学发展,通过混沌混合生产多层膜和互穿共混物

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摘要

Chaotic mixing of immischible binary components was recently in a continuous flow process to obtain extruded films with very many internal layers. Where interfacial tension is small, individual layer thicknesses can be only tens of nanometers and many thousands of continuous or broken layers can be formed. Such materials are both novel and potentially important. In this study, multilayer film formation and breakup were investigated systematically by using a batch chaotic mixer to better understand the more industrially relevant continuous flow counterpart. Polystyrene (PS) and low-density polyethylene (LDPE) wer used a a model binary system with approeciable interfacial tension such that comparatively thicker layers and larger breakup bodies were formed and more readily examined. The mulitilayer film morphology developed progressively as chaotic mixing continued and was thereby amenable to control and optimization with regard to layer thickness and number. Blends with single or dual phase continuity and structured droplet distributions were found to be important derivative morphologies upon layer breakup.
机译:近来,不可混溶的二元组分的混沌混合处于连续流动过程中,以获得具有很多内层的挤出膜。在界面张力小的情况下,单个层的厚度只能是几十纳米,并且可以形成成千上万个连续的或破裂的层。这样的材料既新颖又潜在重要。在这项研究中,通过使用间歇式混沌混合器系统地研究了多层膜的形成和破裂,以更好地了解与工业相关的连续流对应物。聚苯乙烯(PS)和低密度聚乙烯(LDPE)将使用具有适当界面张力的模型二元系统,从而形成相对较厚的层和较大的破裂体,并且更易于检查。随着混乱混合的继续,多层膜的形态逐渐发展,因此可以控制和优化层的厚度和数量。具有单相或双相连续性和结构化液滴分布的共混物在层破裂时被发现是重要的衍生形态。

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