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首页> 外文期刊>Journal of Applied Polymer Science >Grape stalk fibers as reinforcing filler for polymer composites with a polystyrene matrix
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Grape stalk fibers as reinforcing filler for polymer composites with a polystyrene matrix

机译：葡萄茎纤维作为增强填料，用于具有聚苯乙烯基质的聚合物复合材料

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摘要

Lignocellulosic fibers have been one of the most used reinforcements for different types of composites. In this context, grape stalks-often discarded in landfills-can be a potential reinforcement for composites. The present study aimed to incorporate in natura and alkali treated grape stalks into the polystyrene (PS) matrix. Initially, the grape stalks were treated with NaOH and 10, 20, and 30 wt % of stalks were added into the PS matrix. The alkaline treatment of the grape stalk fibers promoted the removal of hemicellulose and the partial removal of lignin, thus increasing the surface roughness and crystallinity index of the fibers. An improvement in the mechanical and dynamic-mechanical properties and an increase in the maximum degradation temperature of the composites were observed. In conclusion, the use of grape stalks is a promising alternative for reinforcing composites, and, in addition, a more proper destination can be given to this type of residue. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47427.
机译：木质纤维素纤维是不同类型复合材料的最常用的增强剂之一。在这种情况下，葡萄秸秆通常在垃圾填埋场中丢弃 - 可以是复合材料的潜在加强件。本研究旨在将Natura和碱处理葡萄秸秆纳入聚苯乙烯（PS）基质中。最初，用NaOH和10,20和10,20和10，将30wt％的秸秆加入PS基质中。葡萄茎纤维的碱性处理促进了半纤维素的去除和木质素的部分去除，从而增加了纤维的表面粗糙度和结晶度指数。观察到机械和动态机械性能的改善和复合材料的最大降解温度的增加。总之，葡萄秸秆的使用是对增强复合材料的有希望的替代方案，并且另外，可以给予这种类型的残留物更适当的目的地。 （c）2019 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47427。

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