Characterization of Physical and Mechanical Properties of Rice Straw Particles and Furcraea foetida Fiber Reinforced Hybrid Composite

ABSTRACT

The biodegradable characteristics and abundant availability of the fiber sources have gained the attention of various industries to produce natural fiber-based composites. As a sustainable alternative to the non-biodegradable fiber-based products, the natural composites provide a viable solution to reduce the environmental pollution caused by synthetic materials. This study developed rice straw particle (RS_p) and Furcraea foetida (FF) fiber reinforced hybrid composite and investigated its physical and mechanical properties. The addition of 15 wt.% of RS_p reduced the density of the test samples by 41.87% and its water absorption (WA) increased with the increase in fiber concentration. The composite with 5 wt.% and 15 wt.% of RS_p showed maximum tensile strength (σ_t: 29.45 MPa) and modulus (σ_tm: 3.67 GPa), respectively. At 15 wt.% of RS_p, the maximum flexural strength (σ_f: 43.12 MPa) and modulus (σ_fm: 2.09 GPa) was achieved and at 10 wt.% of RS_p showed the highest impact strength (σ_i: 101.01 J/m). The σ_t (40.21%) and σ_f (7.76%) of the RS_p reinforced composite were improved by the hybridization of FF (20 wt.%) fiber reinforcement.

摘要

纤维源的生物可降解特性和丰富的可用性引起了各行业生产天然纤维基复合材料的关注. 作为不可生物降解纤维基产品的可持续替代品，天然复合材料为减少合成材料对环境的污染提供了可行的解决方案. 本研究开发了稻草颗粒（RSp）和黄曲霉（FF）纤维增强混杂复合材料，并对其物理力学性能进行了研究. 添加15 wt.%的RSp使测试样品的密度降低了41.87%，并且其吸水率（WA）随着纤维浓度的增加而增加. RSp含量为5 wt%和15 wt%的复合材料分别表现出最大拉伸强度（σt:29.45MPa）和模量（σtm:3.67GPa）. 在15 wt.%的RSp下，获得了最大的弯曲强度（σf:43.12MPa）和模量（σfm:2.09GPa），在10 wt.%时，RSp显示出最高的冲击强度（σi:101.01J/m）. FF（20 wt.%）纤维增强复合材料的σt（40.21%）和σf（7.76%）得到了改善.

KEYWORDS:

• Rice straw
• Furcraea foetida
• hybrid composite
• mechanical properties
• SEM analysis

关键词:

• 稻草
• 鹅掌楸
• 杂交复合材料
• 机械性能
• SEM分析

Acknowledgements

The authors would like to acknowledge Manipal Academy of Higher Education, Manipal, for providing the instrumental and infrastructural facilities to conduct the experimentations.

Disclosure statement

No potential conflict of interest was reported by the author(s).