• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2023, Volume: 16, Issue: 29, Pages: 2176-2182

Original Article

Utilization of Peanut Shells as Sustainable Fillers for Light Weight and Cost-Effective Composite Material

Received Date:18 May 2023, Accepted Date:30 June 2023, Published Date:28 July 2023


Objectives: To explore the use of natural composites as environmentallyfriendly alternatives to plastic. To investigate the effects of varying ratios of peanut shells and Styrene Diluted Unsaturated Polyester resin (SDUPR) on the mechanical properties of the composites and to assess the biodegradability of the composites. Method: Composites were prepared using the manual layup method. Utilized varying ratios of peanut shells and SDUPR as: 50:50, 55:45, 60:40, 65:35 and cured the composites with a curing agent. Performed mechanical tests including Izod Impact test, Flexural test, Rockwell Hardness test using standard test ASTM D256, Flexure strength testing and HR-210MR respectively. Evaluated the biodegradability of the composites. Findings: The ratio of peanut shells to SDUPR significantly affects the hardness and biodegradability of the composites. Comparisons of the four sheets provide insights into the mechanical properties of each composite and the impact of the ratio of peanut shells and SDUPR. The observed values of Izod impact test are 1.95 J/cm2, 1.86 J/cm2, 1.75 J/cm2, 1.69 J/cm2 and Rockwell hardness test are 29 kg.mm, 23 kg.mm, 17 kg.mm, 9 kg.mm. Novelty: This study explores the use of natural composites made of SDUPR and peanut shells, contributing to the search for environmentally-friendly materials. It provides valuable insights into the potential of natural composites as a sustainable alternative to conventional materials.

Keywords: Biodegradability; Composites; Peanut Shells; Polyester Resin


  1. Ikladious NE, Shukry N, El-Kalyoubi SF, Asaad JN, Mansour SH, Tawfik SY, et al. Eco-friendly composites based on peanut shell powder / unsaturated polyester resin. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications. 2019;233(5):955–964. Available from: https://doi.org/10.1177/1464420717722377
  2. Sharifah A, Martin A, Simon C, Simon P. Modified polyester resins for natural fibre composites. Composites Science and Technology. 2005;65:525–535. Available from: https://doi.org/10.1016/j.compscitech.2004.08.005
  3. Lakshumu A, Jagadeesh V. A Review on chemical and physical Properties of Natural Fiber Reinforced Composites. International Journal of Advanced Research in Engineering and Technology. 2017;8:56–68. Available from: https://iaeme.com/MasterAdmin/Journal_uploads/IJARET/VOLUME_8_ISSUE_1/IJARET_08_01_006.pdf
  4. Mili SS, Manthan P, Ravi B, Bhoi DK. Unsaturated Polyester Resin and Rice Husk Composites. Journal of Polymer and Composites. 2022;10:76–84. Available from: https://journals.stmjournals.com/jopc/article=2023/view=97098/
  5. Carvalho LHD, Cavalcante JMF, D'almeida JRM. Comparison of the Mechanical Behavior of Plain Weave and Plain Weft Knit Jute Fabric-Polyester-Reinforced Composites. Polymer-Plastics Technology and Engineering. 2006;45(7):791–797. Available from: https://doi.org/10.1080/03602550600611933
  6. Ilyas RA, Zuhri MYM, Aisyah HA, Asyraf M, Hassan S, Zainudin E, et al. Natural Fiber-Reinforced Polylactic Acid, Polylactic Acid Blends and Their Composites for Advanced Applications. Polymers. 2022;14(1):202. Available from: https://doi.org/10.3390/polym14010202
  7. Jamila A, Abubakar BM, Abdullahi BD, Muhammad B, M. Physico-mechanical Properties of Unsaturated Polyester Resin Reinforced Maize Cob and Jute Fiber Composites. Journal of Natural Fibers. 2022. Available from: https://doi.org/10.1080/15440478.2020.1841062
  8. Wu Z, Aladejana JT, Liu S, Gong X, Wang XA, Xie Y. Unsaturated Polyester Resin as a Nonformaldehyde Adhesive Used in Bamboo Particle Boards. ACS Omega. 2022;7(4):3483–3490. Available from: https://doi.org/10.1021/acsomega.1c05969
  9. Khalil HPSA, Bhat IUH, Jawaid M, Zaidon A, Hermawan D, Hadi YS. Bamboo fibre reinforced biocomposites: A review. Materials and Design. 2012;42:353–368. Available from: https://doi.org/10.1016/j.matdes.2012.06.015
  10. Parnia Z, Zahari R, Sultan MTH. Extraction and preparation of bamboo fibre reinforced composites. Materials and Design. 2014;63:820–828. Available from: http://dx.doi.org/10.1016/j.matdes.2014.06.058
  11. Mathur VK. Composite materials from local resources. Construction and Building Materials. 2006;20(7):470–477. Available from: https://doi.org/10.1016/j.conbuildmat.2005.01.031


Shah MS, Panchal M, Patel RB, Bhoi DK. (2023) Utilization of Peanut Shells as Sustainable Fillers for Light Weight and Cost-Effective Composite Material . Indian Journal of Science and Technology. 16(29): 2176-2182. https://doi.org/10.17485/IJST/v16i29.2443


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