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首页> 外文期刊>Journal of Polymers and the Environment >Tuning Sugarcane Bagasse Biochar into a Potential Carbon Black Substitute for Polyethylene Composites
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Tuning Sugarcane Bagasse Biochar into a Potential Carbon Black Substitute for Polyethylene Composites

机译：将甘蔗队Bagasse BioChar调入潜在的炭黑替代聚乙烯复合材料

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摘要

One of the most used carbonaceous materials by industry are carbon blacks, which have technological applications in polymeric composites, coatings and paints, electric and electrochemical devices. One drawback is that they are produced from fossil fuels. Although biochars are also carbonaceous materials some disadvantages like their larger particles size, high ash content and highly oxygenated surface must be overcome to enable their use as substitute of carbon blacks in composites. Sugarcane bagasse biochar was used to produce carbonaceous materials to substitute carbon blacks. Milling of biochar decreased particle size from several hundreds of micrometers to 100-500nm and narrowed its size distribution. Chemical leaching reduced the inorganic compounds and ash content by almost 20%. Great advance was achieved when biochar was thermally annealed in alcohol vapor atmosphere which resulted in biochar-based material with very low oxygenated carbon species at particles surface and turned them hydrophobic. Almost no C-O/C=O and O-C=O peaks components were observed at the X-ray photoelectron spectroscopy spectrum. Reactive thermal annealing of the biochar based additive was a key procedure to obtain polyethylene composites (5% loading) with mechanical, thermal and colorimetric properties very close to the ones prepared with the carbon black from fossil fuels.
机译：由工业的最常用的碳质材料之一是炭黑，其具有聚合物复合材料，涂料和涂料，电气和电化学装置的技术应用。一个缺点是它们由化石燃料生产。虽然生物脉体也是碳质材料，但必须克服它们较大的颗粒尺寸，高灰分含量和高氧化表面的缺点，以使其在复合材料中用作炭黑的替代品。 Sugarcane Bagasse Biochar用于生产碳质材料以替代炭黑。铣削生物炭减少了几百微米至100-500nm的粒径，并缩小其尺寸分布。化学浸出将无机化合物和灰分含量降低近20％。当Biochar在醇蒸汽气氛中热退火时，实现了大的提前，这导致基于生物炭的材料在颗粒表面上具有非常低的含氧碳物质并将其转向疏水。在X射线光电子体光谱谱上观察到几乎没有C-O / C = O和O-C = O峰组分。基于生物炭添加剂的反应热退火是获得具有机械，热和比色性质的聚乙烯复合材料（5％负载）非常靠近由化石燃料制备的炭黑制备的聚乙烯复合材料（5％负载）。

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  • 来源
    《Journal of Polymers and the Environment》 |2019年第8期|1735-1745|共11页
  • 作者

    Ferreira Gabriela F.; Pierozzi Mauricio; Fingolo Ana Claudia; da Silva Widner P.; Strauss Mathias;

  • 作者单位

    Brazilian Ctr Res Energy & Mat CNPEM Brazilian Nanotechnol Natl Lab LNNano BR-13083970 Campinas SP Brazil;

    Brazilian Ctr Res Energy & Mat CNPEM Brazilian Nanotechnol Natl Lab LNNano BR-13083970 Campinas SP Brazil;

    Brazilian Ctr Res Energy & Mat CNPEM Brazilian Nanotechnol Natl Lab LNNano BR-13083970 Campinas SP Brazil;

    Brazilian Ctr Res Energy & Mat CNPEM Brazilian Nanotechnol Natl Lab LNNano BR-13083970 Campinas SP Brazil;

    Brazilian Ctr Res Energy & Mat CNPEM Brazilian Nanotechnol Natl Lab LNNano BR-13083970 Campinas SP Brazil|Fed Univ ABC Ctr Nat & Human Sci BR-09210580 Santo Andre SP Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polyolefin; Composite; Pyrolysis; Filler; Nanomaterial;

    机译：聚烯烃;复合材料;热解;填料;纳米材料;

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