Investigation of effect of chestnut sawdust on mechanical properties of epoxy matrix composites

Abstract

Composites have many important properties such as high specific hardness and strength, dimensional stability, adequate electrical properties and excellent corrosion resistance. The composite industry is mostly dominated by thermosetting resins such as epoxy, vinyl ester, unsaturated polyester, phenolic, polyimides. These resins have many advantages such as their relative ease of processing, lower equipment cost for processing and lower material costs. In this study, the effect of chestnut sawdust on the mechanical properties of epoxy matrix composites was investigated. As the resin, thermosetting epoxy resin was preferred as the matrix. As a filler, chestnut wood sawdust, which is produced as a natural waste by local furniture manufacturers, was used. The sawdust was prepared up to 400 micron size and was added to the resin at rates of 5-10-15-20% by weight. Sample preparation was terminated as the resin reached saturation with the addition of 20% sawdust. PTFE material was preferred as the mould because of the very weak adhesion property of epoxy. The prepared mixture was kept in the oven at 180oC for 3 hours to completely harden. Mechanical properties of the samples such as tensile, hardness and impact were investigated. Examination of the broken surfaces was made with SEM images. At the end of the study, it was determined that the addition of 10% by weight chestnut sawdust increased the mechanical properties of epoxy composites. It was also understood from the SEM images that there was a homogeneous mixture in the sample structure.

Keywords

• Epoxy resin
• Chestnut sawdust
• Mechanical properties
• Natural filler

References

1. Jose JP, Joseph K (2012) Introduction to Polymer Composites. In: Sabu T, Kuruvilla J, Kumar M, Goda K, Sreekala MS (ed) Polymer Composites, First edn. Wiley, New York, pp 1-16
2. Cakir Yigit N (2022) Alev geciktirici polimerlerin sentezine yönelik güncel yaklaşımlar. Journal of innovative engineering and natural science 2(2): 95-113. https://doi.org/10.29228/JIENS.63353
3. Kartal İ (2020) Effect of hornbeam sawdust size on the mechanical properties of polyethylene composites. Emerging Materials Research 9(3):979-984.
4. Kartal İ, Naycı G, Demirer H (2019) Investigation of the Mechanical Properties of Chestnut/Hornbeam Sawdust Filled Vinyl Ester Composites. European Journal of Science and Technology 16:723-728.
5. Kartal İ, Naycı G, Demirer H (2020) The effect of chestnut wood flour size on the mechanical properties of vinyl ester composites. Emerging Materials Research 9(3):960-965
6. Şengör İ, Cesur S, Kartal İ, Oktar FN, Ekren N, İnan AT, Gündüz O (2018) Fabrication and Characterization of Hazelnut ShellPowder with Reinforced Polymer Composite Nanofibers. ICNMA: 2018 20th International Conference on Nanostructured Materials and Applications
7. Kartal İ, Naycı G, Demirer H (2019) Investigation of Mechanical Properties of Glass and Bamboo Fiber Reinforced Vinylester Composites. Multidisciplinary Studies and Innovative 3(1):34-37.
8. Demirer H, Kartal İ, Yıldırım A, Büyükkaya K (2018) The Utilisability of Ground Hazelnut Shell as Filler in Polypropylene Composites. Acta Phys. Pol. A 134:254-256.

9. Ashori, A (2008) Wood-plastic composites as promising green-composites for automotive industries. Bioresource Technology 99(11):4661-4667.
10. Marcovich NE, Reboredo MM, Aranguren MI (1996) Composites from sawdust and unsaturated polyester. J. Appl. Polym. Sci. 61(1):119-124.
11. Ridzuan MJM, Majid MSA, Afendi M, Azduwin K, Amin NAM, Zahri JM, Gibson AG (2016) Moisture absorption and mechanical degradation of hybrid Pennisetum purpureum/glass-epoxy composites. Composite Structures 141:110-116. https://doi.org/10.1016/j.compstruct.2016.01.030
12. Vijayan D, Thiagarajan R. (2020) Influence of stacking sequence on mechanical and metallurgical properties of ramie/areca laminates using B4C nano filled epoxy. Resin Journal of Natural Fibres 1-17. https://doi.org/10.1080/15440478.2020.1848713
13. Kamdem DP, Jiang H, Cui W, Freed J, Matuana LM (2004) Properties of wood plastic composites made of recycled HDPE and wood flour from CCA-treated wood removed from service. Composite Part A: Applied Science and Manufacturing 35(3):347-355. https://doi.org/10.1016/j.compositesa.2003.09.013
14. Deka BK, Baishya P, Maj TK (2014) Synergistic effect of SiO2, ZnO and nanoclay on mechanical and thermal properties of wood polymer nanocomposite. Journal of Thermoplastic Composite Materials 27(4):464-480. https://doi.org/10.1177/0892705712452739
15. Kartal İ (2019) Investigation of Wear Properties of Toughened Epoxy Resin using Silane Terminated Urethane. Acta Physica Polonica A 135(5):1100-1101.
16. Kartal İ, Boztoprak Y, Bilici MK, Çakır M (2006) Investigation of Wear Properties of Epoxy-Polyester Mixtures. 13th International Metallurgy and Materials Congress
17. Bilyeu B, Brostow W, Menard KP (1999) Epoxy thermosets and their applications. I: Chemical structures and applications. Journal of Materials Education 21(5&6):281-286.
18. Khan M, Abas M, Noor S, Salah B, Saleen W, Khan R (2021) Experimental and statistical analysis of sawmill wood waste composite properties for practical applications. Polymers 13(4038):1-19.
19. Lette MJ, Elhadji Babacar LY, Ndiaye D, Takasaki A, Okabe T (2018) Evaluation of sawdust and rice husks as fillers for phenolic resin based wood polymer composites. Journal of Composite Materials 8(3):124-137 https://doi.org/10.4236/ojcm.2018.83010
20. Huda MS, Drzal LT, Misra M, Mohanty AK (2006) Wood-fiber-reinforced poly(lactic acid) composites: Evaluation of the physicomechanical and morphological properties. J. Appl. Polym. Sci. 102:4856-4869.
21. Kumara R, Kumarb K, Sahooc P, Bhowmika S (2014) Study of mechanical properties of wood dust reinforced epoxy composite. Procedia Materials Science 6:551-556.