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Sustainable Use of Coffee Husks For Reinforcing Polyethylene Composites

机译：可持续利用咖啡果皮增强聚乙烯复合材料

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摘要

The utilization of the coffee husk fiber (CHF) from the coffee industry as a reinforcing filler in the preparation of a cost-effective thermoplastic based composite was explored in this study. The chemical composition and thermal properties of the CHF were investigated and compared with those of wood fiber (WF). CHF proved to be mainly composed of cellulose, hemicellulose and lignin, and exhibited similar thermal behavior to WF. High density polyethylene (HDPE) composites with CHF loadings of from 40 to 70% were prepared using melt processing and extrusion. The processing properties, mechanical behavior, water absorption and thermal performance of these composites were investigated. The effect of maleated polyethylene (MAPE) used as a coupling agent on the composite was explored. The experimental results showed that increasing the CHF loading in the HDPE matrix resulted in an increase in the modulus and thermal properties of the composites, but resulted in poor water resistance. The addition of a 4% MAPE significantly improved the interfacial behavior of the hydrophilic lignocellulosic fiber and the hydrophobic polymer matrix.
机译：在这项研究中，研究了利用咖啡行业的咖啡果皮纤维（CHF）作为补强填充剂来制备具有成本效益的热塑性复合材料。研究了CHF的化学成分和热性能，并将其与木纤维（WF）进行了比较。 CHF被证明主要由纤维素，半纤维素和木质素组成，并且表现出与WF相似的热行为。使用熔融加工和挤出制备CHF含量为40％至70％的高密度聚乙烯（HDPE）复合材料。研究了这些复合材料的加工性能，力学性能，吸水率和热性能。探索了用作偶联剂的马来化聚乙烯（MAPE）对复合材料的影响。实验结果表明，增加HDPE基体中的CHF含量会导致复合材料的模量和热性能提高，但会导致耐水性差。添加4％MAPE可以显着改善亲水性木质纤维素纤维和疏水性聚合物基质的界面行为。

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  • 来源
    《Journal of Polymers and the Environment》 |2018年第1期|48-58|共11页
  • 作者

    Huang Lang; Mu Binshan; Yi Xin; Li Shujun; Wang Qingwen;

  • 作者单位

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Harbin 150040, Heilongjiang, Peoples R China;

    Northeast Forestry Univ, Minist Educ, Key Lab Biobased Mat Sci & Technol, Harbin 150040, Heilongjiang, Peoples R China|South China Agr Univ, Coll Mat & Energy, 483 Wushan Rd, Guangzhou 510642, Guangdong, Peoples R China;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Coffee husk fiber; Polyethylene; Composite; Coupling agent; Mechanical properties;

    机译：咖啡壳纤维;聚乙烯;复合材料;偶联剂;机械性能;

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