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Composites from Natural Fibers: Hemp Fiber Reinforced Composites from 3D Orthogonal Woven Preforms and their Potential Applications in the US
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Composites from Natural Fibers: Hemp Fiber Reinforced Composites from 3D Orthogonal Woven Preforms and their Potential Applications in the US. |
| 개인저자 | Gupta, Anuradha. |
| 단체저자명 | North Carolina State University. |
| 발행사항 | [S.l.]: North Carolina State University., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 296 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-03B. Dissertation Abstract International |
| ISBN | 9781085646505 |
| 학위논문주기 | Thesis (Ph.D.)--North Carolina State University, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-03, Section: B.
Advisor: Bourham, Mohamed |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | Natural fibers reinforcements are a prevalent option for applications in composite manufacturing. There is significant ongoing research in the field of natural fiber reinforced composites, which mainly aims at reducing the overall carbon footprint. Natural fiber composites have great potential as the focus of many industries is shifting from synthetic fibers that are commonly used in manufacturing composites today like glass, carbon, and aramid to more sustainable natural fibers. Some of the major issues with synthetic fibers are high-energy consumption during production and non-degradability. Similarly, polymer resins like epoxy and vinyl ester, which are most commonly used in high-performance composites, are petroleum based. With the reserve of petroleum depleting, alternative sustainable fibers and resins are the substitutes. The applications of natural fibers are growing in the field of engineering and technology due to its favorable properties like biodegradability, sustainability, high strength, and corrosion resistance. Due to these benefits, synthetic fibers and resins from hazardous chemicals are being substituted with natural fibers and resins. As a result, the term "Green composites" or "biocomposites" have emerged, which is a blend of the intrinsic properties of fiber and matrix derived from natural resources. Hemp has proven to be one of the strong contenders for the replacement. Hemp-based composites help reduce the carbon footprint of the end composite and enhanced energy recovery at the end of their lifecycle. Hemp fibers are used as reinforcement in composites due to high specific strength and high specific Young's modules. Moreover, hemp fibers possess a much higher vibration dampening capacity, higher fiber yield, pest resistant and drought resistance. All these properties make it an excellent candidate for composite reinforcement. The objectives of this research are to explain the importance of hemp-fiber reinforced composites, highlighting the potential application. 3D Orthogonal Woven fabrics incorporate through-thickness reinforcement and can exhibit remarkable inter-laminar properties that aid damage suppression prevent delamination and delay crack propagation. A comprehensive study혻on the performance of hemp/vinyl ester composites in terms of their structural parameters was performed. Composite panels were manufactured using a 3D orthogonal weaving (3DOW) technology and Vacuum Assisted Resin Transfer Molding (VARTM) process. A range of 3DOW composites was tested for its tensile and compression strength and impact resistance to understanding their failure mechanisms in terms of their structural parameters. A thorough analysis of the effect of weave design, the contribution of Z-binders and thickness was investigated, and the study concluded that the number of Y-layers had the most significant effect on the mechanical strength. An additional goal of this work is to identify potential markets of hemp-based experimental composites based on their performance characteristics. Hemp newly gained agricultural crop status is gaining momentum in the United States and will further strengthen high-performance composite applications of industrial hemp. |
| 일반주제명 | Textile research. |
| 언어 | 영어 |
| 바로가기 | 
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