Affiliation:
1. Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering Nanjing Forestry University Nanjing Jiangsu China
2. Zhejiang Academy of Forestry Hangzhou Zhejiang China
3. Zhejiang Forestry Information and Propaganda Service Center Hangzhou Zhejiang China
4. College of Furnishings and Industrial Design Nanjing Forestry University Nanjing Jiangsu China
5. College of Forestry, Wildlife and Environment, Auburn University Auburn Alabama USA
6. Department of Mechanical and Energy Engineering University of North Texas Denton Texas USA
Abstract
AbstractFabricating bamboo fiber‐reinforced epoxy composites (BFREs) using the vacuum‐assisted resin transfer molding (VARTM) process has many advantages, such as low cost, high product quality, controllability, and broad applicability. However, the immature fabrication process seriously affects product performance and hinders the full exploitation of the advantages of the VARTM process. The effects on the physical‐mechanical and thermal properties of BFREs by molding sequence and fiber content were investigated in this study. The molding sequence of fiber compression followed by resin injection was beneficial to ensure hermeticity, thus reducing the voids in the BFREs. The mechanical properties of BFREs gradually increased with increasing fiber content. With 50 wt% fiber content, the bending strength and modulus, shear strength, and impact toughness of BFREs reached 71.27 MPa, 6.78 GPa, 11.68 MPa, and 5.45 kJ/m2, respectively. Although the thermal stability of the BFREs was slightly lower than that of pure epoxy, the bamboo fibers' high rigidity evidentially increased the epoxy's dynamic mechanical properties. The life cycle assessment indicated that the BFREs effectively reduced the environmental impacts and production energy consumption compared to the glass fiber correspondent. The VARTM‐fabricated BFREs have great potential for construction, transportation, household items, packaging, sports equipment, and leisure goods applications.Highlights
Fiber compression followed by resin injection could ensure great hermeticity.
Micro‐CT accurately measured the void characteristics of the composites.
Voids had detrimental effects on the properties of the composites.
Dense bamboo fiber preforms enhanced the mechanical properties of epoxy.
Bamboo fibers reinforcing epoxy reduced the impact on the environment.
Subject
Materials Chemistry,Polymers and Plastics,General Chemistry,Ceramics and Composites
Cited by
1 articles.
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