Unsaturated Polyester Resin and Rice Husk Composites

Open Access

Year : 2022 | Volume : | Issue : 3 | Page : 76-84

    Mili S. Shah

  1. Manthan Panchal

  2. Ravi B. Patel

  3. D.K. Bhoi

  1. Research Scholar, Department of Chemistry, Silver Oak University, Ahmedabad, Gujarat, India
  2. Professor, Department of Chemistry, Silver Oak University, Ahmedabad, Gujarat, India
  3. Professor, Department of Chemistry, Shree P. M. Patel Institute of Post graduate Studies and Research in Science, Anand, Gujarat, India
  4. Professor, Department of Chemistry, J & J College of Science, Nadiad, Gujarat, India


Plastic is a very useful and important part of human beings but it is quiet harmful to environment. The increasing demand for the eco-friendly material is growing interest towards the field of Composites. The Natural composites of Styrene Diluted Unsaturated Polyester resin are made. Various natural materials are used to make different composites. This study includes Rice Husk Composite of SDUPR. There are many methods to prepare composites. Methods such as Spray-Up, Pultrusion, Manual layup, Automated layup, Resin Transfer Molding etc. are used to make composites, in this study composites are made by manual layup method. Various sheets are prepared by different proportion of Rice Husk
and SDUPR and curing agent is added to the mixture. In this study four different sheets are prepared having ratios 50:50, 55:45, 60:40 and 65:35. Tests like Flexural Test, Izod Impact test, Rockwell Hardness test and Biodegraiblity test are done. Hardness and degradation is varied as the ratio of Rice Husk and SDUPR varies. The comparison is shown among all thesheets prepared. It can be examined by comparing all four sheets that the mechanical properties are varied due to variation of Rice Husk and SDUPR ratios. By the results of all tests it is observed that as the ratio of Rice Husk increases the mechanical properties such as Flexibility, Hardness and Impact energy of product decreases and Biodegraiblity of product decreases.

Keywords: Biodegraiblity, composites, hardness, polyester resin, rice husk

[This article belongs to Journal of Polymer and Composites(jopc)]

How to cite this article: Mili S. Shah, Manthan Panchal, Ravi B. Patel, D.K. Bhoi Unsaturated Polyester Resin and Rice Husk Composites jopc 2022; 10:76-84
How to cite this URL: Mili S. Shah, Manthan Panchal, Ravi B. Patel, D.K. Bhoi Unsaturated Polyester Resin and Rice Husk Composites jopc 2022 {cited 2022 Dec 15};10:76-84. Available from: https://journals.stmjournals.com/jopc/article=2022/view=97098

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1. Work WJ, Horie K, Hess M, Stepto RFT. Definition of terms related to polymer blends, composites, and multiphase polymeric materials (IUPAC Recommendations 2004). Pure Appl Chem. 2004;76(11):1985–2007. doi: 10.1351/pac200476111985.
2. Carpenter DK. Solution properties in Encyclopedia of polymer science and Engineering. 2nd ed. Vol. 15; 1989. p. 419–81.
3. Cowie JMG. Miscibility, in encyclopedia of Polymer science and Engineering. 2nd ed; 1989. p. 455–80.
4. Muller M. Unsaturated Polyester resins in resin coatings, chemistry, Properties and Applications; 1996. p. 81–110.
5. Ullett JS, Chartoff RP. Unsaturated polyester resins in polymeric materials Encyclopedia. Vol. 11; 1996. p. 8489–96.
6. Mona M, Choudhary Veena VIK. Current status of unsaturated polyester resin. J Macromol Sci C. 2000;40:2–3:139–65.
7. Fradet A. Unsaturated polyesters, in comprehensive Polymer Science. The Synth Chacterization React Appl Polym. 1989;5:331–44.
8. Boenig HV. Unsaturated polyesters. In: Encyclopedia of polymer science and technology. Vol. 12; 1988. p. 256–90.
9. Giindiiz G. Unsaturated Polyester resin, in polymeric Material Encyclopedia. Vol. 11. Boca Raton, FL: CRC press; 1996. p. 8469–76.
10. Jasso-Gastinal CF. Unsaturated Polyester resin, in polymeric Materials Encyclopedia. Vol. 11. Boca Raton, FL: CRC Press; 1996. p. 8469–76.
11. Roskott L, 33rd Annual Conference of Reinforced Plastics / Composites Institute, The Society of plastics Industry. section 5B; 1978. p. 1.
12. Jawaid M, Abdul Khalil HPS. Cellulosic/synthetic fibre reinforced polymer hybrid composites: a review. Carbohydr Polym. 2011;86(1):1–18. doi: 10.1016/j.carbpol.2011.04.043.
13. Puglia D, Biagiotti J, Kenny JM. A Review on Natural Fibre-Based Composites—Part II. J Nat Fibers. 2005;1(3):23–65. doi: 10.1300/J395v01n03_03.
14. Cao X, Lee LJ. Control of shrinkage and residual styrene of unsaturated polyester resins cured at low temperatures: I. Effect of curing agents. Polymer. 2003;44(6):1893–902. doi: 10.1016/S0032–3861(03)00014–4.
15. Mohanty AK, Khan MA, Hinrichsen G. Influence of chemical surface modification on the properties of biodegradable jute fabrics—polyester amide composites. Compos A. 2000;31(2):143–50. doi: 10.1016/S1359–835X(99)00057–3.
16. Wollerdorfer M, Bader H. Influence of natural fibers on the mechanical properties of biodegradable polymers. Ind Crops Prod. 1998:105–12.
17. Zakikhani Parnia ZR, Sultan MTH. Extraction and preparation of bamboo fibre reinforced composites, Department of Aerospace Engineering, University Putra Malaysia. Mater Des. 2014;63:820–8.
18. Oksman K, Skrifvars M, Selin J-F. Natural fibres as reinforcement in polylactic acid (PLA) composites. Compos Sci Technol. 2003;63(9):1317–24. doi: 10.1016/S0266–3538(03)00103–9.
19. Keener TJ, Stuart RK, Brown TK. Maleated coupling agents for natural fibre composites. Compos A. 2004;35(3):357–62. doi: 10.1016/j.compositesa.2003.09.014.
20. Gupta AK, Kumar A. Potential of bamboo in sustainable development. Asia Pac Bus Rev. 2008;4(3):100–7. doi: 10.1177/097324700800400312.
21. Lakkad SC, Patel JM. Mechanical properties of bamboo, a natural composite, Fiber. Sci Technol. 1980–81;14:319–22.
22. Shibata M, Ozawa K, Teramoto N, Yosomiya R, Takeishi H. Biocomposites made from short abaca fiber and biodegradable polyesters. Macromol Mater Eng. 2003;288(1):35–43. doi: 10.1002/mame.200290031.

Regular Issue Open Access Original Research
Volume 10
Issue 3
Received November 19, 2022
Accepted December 13, 2022
Published December 15, 2022