A new approach to "Greening" plastic composites using pineapple leaf waste for performance and cost effectiveness
A new approach to "Greening" plastic composites using pineapple leaf waste for performance and cost effectiveness
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DOI：
10.1016/j.matdes.2013.10.005
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发表时间：
2014-03-01
影响因子：
8.4
通讯作者：
Amornsakchai, Taweechai
中科院分区：
文献类型：
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作者：
Kengkhetkit, Nanthaya;Amornsakchai, Taweechai
本文描述的工作是第一项详细研究，旨在证明使用单一可再生资源（即菠萝叶废物）的所有部分作为填料来制备具有广泛可调性能的绿色塑料复合材料的重要机会。这不仅为产品设计者提供了一个降低材料成本的机会，而且还提供了一个调整性价比和利用废叶每一部分的机会。新鲜的菠萝叶，其中含有约85%的水，被切成小块，磨成糊状。这被称为全磨碎的菠萝叶（WGL），并且包含约2.8重量%的高质量干纤维，称为菠萝叶纤维（PALF），以及约10重量%的大部分非纤维材料（NFM）。研究了WGL、PALF和NFM作为聚丙烯补强填料的性能。结果发现，PALF提供了最高的改善，在所有的机械性能测试（拉伸，弯曲和冲击测试）和热变形温度，其次是WGL和NFM，分别。NFM，虽然它只提供轻微改善的拉伸和弯曲性能，可以保持甚至提高冲击强度。对环境问题的简要考虑表明，使用菠萝叶废料在降低隐含能量和降低总体排放方面都是有益的。(C)2013爱思唯尔有限公司保留所有权利。
The work described in this paper is the first detailed study aimed to demonstrate the important opportunity available in using all parts of a single renewable source, i.e. pineapple leaf waste, as filler for the preparation of green plastic composite with a wide range of adjustable properties. This will not only provide the product designer an opportunity to lower the material cost, but also offer an opportunity to adjust the price-performance ratio and make use of every part of the waste leaf. Fresh pineapple leaves, which contain about 85% water, are chopped into small pieces and ground into paste. This is called whole ground pineapple leaf (WGL) and contains approximately 2.8% by weight of high quality dry fiber, called pineapple leaf fiber (PALF) as well as a large fraction of non-fibrous material (NFM) of approximately 10% by weight. WGL, PALF and NFM are examined as fillers for polypropylene reinforcement. It was found that PALF provided the highest improvement in all mechanical properties tested (tensile, flexural and impact tests) and also heat distortion temperature, followed by WGL and NFM, respectively. NFM, although it provided only slightly improved tensile and flexural properties, could maintain or even improve impact strength. Brief consideration of environmental issues suggests that using pineapple leaf waste can be beneficial in terms of both lower embodied energy and also lower overall emissions. (C) 2013 Elsevier Ltd. All rights reserved.