Effect of Surface Treatment of Tire Rubber on the Tensile Properties of Ground Tire Rubber/Epoxy Composites

Abstract:

The present work investigates the effect of surface treatment of ground tire rubber (GTR) waste on the tensile properties of GTR /epoxy composites. The GTR was treated using 10 wt% alkali solution and 1 wt% stearic acid in acetone. It was found that the treated GTR decreased the tensile strength, about 4.8 and 2.9% for NaOH-and stearic acid-treated GTR, respectively, compared to the untreated GTR. Nevertheless, the treated rubber increased the elastic modulus of the epoxy composites, about 5.2 and 9.3% for the NaOH-and stearic acid-treated GTR, respectively, compared to the untreated GTR. The strain at break and the absorbed energy of the treated GTR/epoxy composites were lower than the untreated GTR, consistent with the increase of elastic modulus for the treated GTR. Scanning electron microscopy revealed that the bonding of the stearic acid-treated GTR-matrix was good, indicating better interfacial strength than the untreated and alkali-treated GTR-epoxy matrix.

• Periodical: Key Engineering Materials (Volume 941)
• Pages: 287-293
• DOI: https://doi.org/10.4028/p-342e45
• Online since: March 2023
• Authors: Sugiman Sugiman*, Didin Rizaldi, Salman Salman, Buan Anshari
• Keywords: Epoxy, Ground Tire Rubber, Surface Treatment, Tensile Properties

References

[1] A. le Guen-Geffroy, P. le Gac, B. Habert, P. Davies, Physical ageing of epoxy in a wet environment: Coupling between plasticization and physical ageing, Polymer Degradation and Stability. 168 (2019) 108947.

DOI: 10.1016/j.polymdegradstab.2019.108947

[2] X. Xu, S. Gao, D. Zhang, S. Niu, L. Jin, Z. Ou, Mechanical behavior of liquid nitrile rubber-modified epoxy resin: experiments, constitutive model and application, International Journal of Mechanical Sciences. 151 (2019) 46–60.

DOI: 10.1016/j.ijmecsci.2018.11.003

[3] M.L. Auad, P.M. Frontini, J. Borrajo, M.I. Aranguren, Liquid rubber modified vinyl ester resins: Fracture and mechanical behavior, Polymer. 42 (2001) 3723–3730.

DOI: 10.1016/S0032-3861(00)00773-4

[4] K. Zhao, J. Wang, X. Song, C. Liang, S. Xu, Curing kinetics of nanostructured epoxy blends toughened with epoxidized carboxyl-terminated liquid rubber, Thermochimica Acta. 605 (2015) 8–15.

DOI: 10.1016/j.tca.2015.02.007

[5] X. Dong, Z. Wu, Y. Wang, T. Li, X. Zhang, H. Yuan, B. Xia, P. Ma, M. Chen, W. Dong, Toughening polylactide using epoxy-functionalized core-shell starch nanoparticles, Polymer Testing. 93 (2021) 106926.

DOI: 10.1016/j.polymertesting.2020.106926

[6] J. Wang, Z. Xue, Y. Li, G. Li, Y. Wang, W.H. Zhong, X. Yang, Synergistically effects of copolymer and core-shell particles for toughening epoxy, Polymer. 140 (2018) 39–46.

DOI: 10.1016/j.polymer.2018.02.031

[7] WBCSD, Global ELT Management-A global state of knowledge on regulation, management systems, impacts of recovery and technologies, 2019. www.wbcsd.org (accessed August 20, 2021).

[8] L. Bockstal, T. Berchem, Q. Schmetz, A. Richel, Devulcanisation and reclaiming of tires and rubber by physical and chemical processes: A review, Journal of Cleaner Production. 236 (2019) 117574.

DOI: 10.1016/j.jclepro.2019.07.049

[9] K. Aoudia, S. Azem, N. Aït Hocine, M. Gratton, V. Pettarin, S. Seghar, Recycling of waste tire rubber: Microwave devulcanization and incorporation in a thermoset resin, Waste Management. 60 (2017) 471–481.

DOI: 10.1016/j.wasman.2016.10.051

[10] Ł. Zedler, M. Przybysz-Romatowska, J. Haponiuk, S. Wang, K. Formela, Modification of Ground Tire Rubber—Promising Approach for Development of Green Composites, Journal of Composites Science. 4 (2019) 2.

DOI: 10.3390/jcs4010002

[11] A. Hejna, J. Korol, M. Przybysz-Romatowska, Ł. Zedler, B. Chmielnicki, K. Formela, Waste tire rubber as low-cost and environmentally-friendly modifier in thermoset polymers – A review, Waste Management. 108 (2020) 106–118.

DOI: 10.1016/j.wasman.2020.04.032

[12] X. Colom, F. Carrillo, J. Cañavate, Composites reinforced with reused tyres: Surface oxidant treatment to improve the interfacial compatibility, Composites Part A: Applied Science and Manufacturing. 38 (2007) 44–50.

DOI: 10.1016/j.compositesa.2006.01.022

[13] S. Sugiman, S. Salman, B. Anshari, Hydrothermal ageing of hydrophobic nano-calcium carbonate/epoxy nanocomposites, Polymer Degradation and Stability. 191 (2021).

DOI: 10.1016/j.polymdegradstab.2021.109671

[14] ASTM-D638-14, Standard Test Method for Tensile Properties of Plastics, ASTM Standards. 08 (2014) 1–15.

[15] Thermo Scientific, Basic organic functional group, reference chart, Www.Thermoscientific.Com/Ftir. (n.d.).

[16] J. Coates, Encyclopedia of Analytical Chemistry -IInterpretation of Infrared Spectra, A Practical Approach, Encyclopedia of Analytical Chemistry. (2004) 1–23. http://www3.uma.pt/jrodrigues/disciplinas/QINO-II/Teorica/IR.pdf.

[17] C. Kaynak, E. Sipahi-Saglam, G. Akovali, A fractographic study on toughening of epoxy resin using ground tyre rubber, Polymer. 42 (2001) 4393–4399.

DOI: 10.1016/S0032-3861(00)00734-5

[18] E. Sipahi-Saglam, C. Kaynak, G. Akovali, M. Yetmez, N. Akkas, Studies on epoxy modified with recycled rubber, Polymer Engineering and Science. 41 (2001) 514–521.

DOI: 10.1002/pen.10748