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首页> 外文期刊>Journal of Applied Polymer Science >Microfoams based on castor oil polyurethanes and vegetable fibers
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Microfoams based on castor oil polyurethanes and vegetable fibers

机译：基于蓖麻油聚氨酯和植物纤维的微泡

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This work was focused on the production and characterization of microcellular polyurethane (PU) composites reinforced with pine wood-fibers or with hemp, which can be applied to the manufacture of car interior panels, or acoustic insulation panels for the construction industry. The polymers selected for the study were crosslinked PUs, synthesized from a castor oil-based polyol, with the formulations adjusted to obtain different foaming levels. Microfoamed composites with preferential orientation were prepared from long hemp fibers. Also, samples with random arrangement of short hemp and wood fibers were obtained. The morphology of the composites was analyzed by scanning electron microscopy. The mechanical performance of the reinforced foams was studied through three point bending and dynamic mechanical tests. (C) 2007 Wiley Periodicals, Inc.
机译：这项工作的重点是用松木纤维或大麻增强的微孔聚氨酯（PU）复合材料的生产和表征，这些复合材料可用于制造汽车内饰板或建筑业的隔音板。选择用于研究的聚合物是由蓖麻油基多元醇合成的交联PU，其配方经过调整以获得不同的发泡水平。由长麻纤维制备具有优先取向的微发泡复合材料。另外，获得了具有短麻和木纤维的随机排列的样品。通过扫描电子显微镜分析复合材料的形态。通过三点弯曲和动态力学测试研究了增强泡沫的机械性能。 （C）2007 Wiley期刊公司

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