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首页> 外文期刊>Journal of Polymers and the Environment >Preparation and Properties of Green Composites Based on Tapioca Starch and Differently Recycled Paper Cellulose Fibers
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Preparation and Properties of Green Composites Based on Tapioca Starch and Differently Recycled Paper Cellulose Fibers

机译：木薯淀粉和不同再生纸纤维素纤维的绿色复合材料的制备和性能

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摘要

Green composites obtained from biodegradable renewable resources have gained much attention due to environmental problems resulting from conventionally synthetic plastics and a global increasing demand for alternatives to fossil resources. In this work we used different cellulose fibers from used office paper and newspaper as reinforcement for thermoplastic starch (TPS) in order to improve their poor mechanical, thermal and water resistance properties. These composites were prepared by using tapioca starch plasticized by glycerol (30 % wt/wt of glycerol to starch) as matrix reinforced by the extracted cellulose fibers with the contents ranging from 0 to 8 % (wt/wt of fibers to matrix). Properties of composites were determined by mechanical tensile tests, differential scanning calorimetry, thermogravimetric analysis, water absorption measurements, scanning electron microscopy, and soil burial tests. The results showed that the introduction of either office paper or newspaper cellulose fibers caused the improvement of tensile strength and elastic modulus, thermal stability, and water resistance for composites when compared to the non-reinforced TPS. Scanning electron microscopy showed a good adhesion between matrix and fibers. Moreover, the composites biological degraded completely after 8 weeks but required a longer time compared to the non-reinforced TPS. The results indicated that these green composites could be utilized as commodity plastics being strong, inexpensive, plentiful and recyclable.
机译：由于常规合成塑料引起的环境问题以及全球对化石资源替代品的需求不断增长，从可生物降解的可再生资源获得的绿色复合材料受到了广泛关注。在这项工作中，我们使用了与废旧办公用纸和报纸不同的纤维素纤维作为热塑性淀粉（TPS）的增强材料，以改善其差的机械，耐热和耐水性。这些复合材料的制备方法是：使用甘油增塑的木薯淀粉（甘油对淀粉的30％wt / wt）作为被提取的纤维素纤维增强的基质，其含量为0％至8％（纤维对基质的wt / wt）。复合材料的性能通过机械拉伸试验，差示扫描量热法，热重分析，吸水率测量，扫描电子显微镜和土壤掩埋试验确定。结果表明，与非增强型TPS相比，引入办公纸或报纸纤维素纤维可提高复合材料的拉伸强度和弹性模量，热稳定性和耐水性。扫描电子显微镜显示基质和纤维之间的良好粘合。此外，复合材料在8周后生物完全降解，但与非增强TPS相比，需要更长的时间。结果表明，这些绿色复合材料可以用作坚固，便宜，丰富和可回收的商品塑料。

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  • 来源
    《Journal of Polymers and the Environment》 |2012年第3期|p.801-809|共9页
  • 作者

    Amnuay Wattanakornsiri; Katavut Pachana; Supranee Kaewpirom; Matteo Traina; Claudio Migliaresi;

  • 作者单位

    Graduate School Program in Environmental Science, Faculty of Science, Burapha University, Chonburi 20131, Thailand,Department of Materials Engineering and Industrial Technologies, University of Trento, Via Mesiano 77, 38050 Trento, Italy,Department of Agriculture and Environment, Faculty of Science and Technology, Surindra Rajabhat University, Surin 32000, Thailand;

    Center of Excellence on Environmental Health and Toxicology, Phayathai, Bangkok 10400, Thailand ,Department of Chemistry, Faculty of Science, Burapha University, Chonburi 20131, Thailand;

    Department of Chemistry, Faculty of Science, Burapha University, Chonburi 20131, Thailand;

    Department of Materials Engineering and Industrial Technologies, University of Trento, Via Mesiano 77, 38050 Trento, Italy,Italian Interuniversity Consortium on Materials Science and Technology (INSTM), Via Giusti 9, 50121 Florence, Italy;

    Department of Materials Engineering and Industrial Technologies, University of Trento, Via Mesiano 77, 38050 Trento, Italy,Italian Interuniversity Consortium on Materials Science and Technology (INSTM), Via Giusti 9, 50121 Florence, Italy;

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  • 正文语种 eng
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  • 关键词

    thermoplastic starch; cellulose fibers; green composites;

    机译：热塑性淀粉;纤维素纤维;绿色复合材料;

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