Influence of Process Parameters on Properties of Hemp Woven Reinforcements for Composite Applications: Mechanical Properties, Bias-extension Tests and Fabric Forming

ABSTRACT

Natural fibers are used to produce environmental-friendly composites with good specific mechanical and acoustical properties. Production of woven reinforcement from natural fibers is challenging because of the distinct length of the fibers. A lot of parameters at fiber extraction, spinning and weaving stages have an impact on the composite produced. The purpose of this paper is to study the influence of yarn type and weave diagram on the mechanical properties of woven fabrics, in terms of tensile and shear behavior and deformability at forming. It was observed that weft density is one of the most impacting parameters during forming.

文摘

天然纤维用于生产具有良好机械性能和声学性能的环保复合材料. 由于纤维的长度不同，从天然纤维中生产机织钢筋是一个挑战. 纤维抽提、纺丝和织造阶段的许多参数对复合材料的生产有影响. 摘要研究了纱线类型和组织图对机织物拉伸、剪切性能和成形变形性能的影响. 结果表明，纬纱密度是影响成形的主要因素之一.

KEYWORDS:

• Natural fibers
• woven fabrics
• composite reinforcements
• mechanical behavior
• shear properties
• fabric forming

关键词:

• 天然纤维
• 机织物
• 组合增援
• 力学行为
• 剪切特性
• 织物形成

Acknowledgments

The authors would like to thank the Italian Company “Linificio e Canapificio Nazionale” for providing twisted yarns and roving used in this study. This project has received funding from the Bio Based Industries Joint Undertaking under the European Union’s Horizon 2020 research and innovation program under the grand agreement no. 744349.

Additional information

Funding

This work was supported by the Horizon 2020 Framework Programme [744349].