Thermal and Mechanical Characteristics of Unsaturated Polyester and Epoxy Blend

Authors

Doaa J. Abed Department of Physics, College of Education for Pure Science(Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq. https://orcid.org/0009-0003-1751-9204
Shatha H. Mahdi Department of Physics, College of Education for Pure Science(Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq. https://orcid.org/0000-0001-9755-5544
Demiral Akbar Department of Mechanical Engineering, OSTİM Technical University, Ankara, Turkey. https://orcid.org/0000-0002-2102-1885

DOI:

https://doi.org/10.30526/38.4.4120

Keywords:

Thermal conductivity, Hardness, Mechanical characteristics, Differential scanning calorimetry (DSC).

Abstract

Epoxy resin and a mixture with unsaturated polyester resin (UPE) were prepared as the matrix materials. The preparation technique included preparing circular and square molds with different weight ratios. Standard samples (40 mm diameter) were prepared for thermal conductivity tests. The results of the thermal conductivity test of the mixture showed that it decreased from (0.014) to (0.013) significantly, which helps in thermal insulation. The decrease in its thermal conductivity means that the structure of the base material is irregular. Hardness test was performed on samples made of epoxy resin with unsaturated polyester resin, and the best hardness reading was (64.5), but when replacing the unsaturated polyester resin with a higher percentage of epoxy resin, the ratio was (30.6), so the value (30.6) is the best hardness value. The test results show that the highest hardness value is (64.5), as for the results of the differential scanning calorimetry measurement. From these curves, it is clear that the value of the glass transition temperature increases from 50 to 179, and the value of the glass transition temperature decreases from 171 to 145.

Author Biographies

Doaa J. Abed, Department of Physics, College of Education for Pure Science(Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.

Department of Physics, College of Education for Pure Science(Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.
Shatha H. Mahdi, Department of Physics, College of Education for Pure Science(Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.

Department of Physics, College of Education for Pure Science(Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq.
Demiral Akbar, Department of Mechanical Engineering, OSTİM Technical University, Ankara, Turkey.

Department of Mechanical Engineering, OSTİM Technical University, Ankara, Turkey.

References

1. Lutfi R. Jassim W. Improvement of Dental Composite Resin Using Supra-Nano Chicken Thigh Bone Fibers. IHJPAS.2023;36)2):165-170 . doi.org/10.30526/36.2.2998.

2. Ali S. Al- Sarraf A. Influence of Bioactive and Bio-Inert Ceramic Powders on Tribology Properties of PMMA Composite Denture Base. Bi Eng.2022;57:1-8. https://doi.org/10.4028/p-3f74k7

3. Lutfi R. Jassim W. Fabrication natural gelcoats of (epoxy/coffee fibers) and (epoxy/cantaloupe fibers) composites with high wear and thermal resistance, AIP Con. 2023;2769(1):1-12. https://doi.org/10.1063/5.0129371.

4. Al- Sarraf A. Study the contrast of thermal expansion behavior for PMMA denture base, single and hybrid reinforced using the thermomechanical analysis technique (TMA). AIP Con.2023;2769(1):1-7. https://doi.org/10.1063/5.0129372 .

5. Fadhil F. Preparation and improvement of Thermal Expansion Coefficient and Impact Strength of (PMMACaAl2O4)system .ICP Pro.2019;1362(1):1-11. doi:10.1088/1742-6596/1362/1/012158

6. Lutfi R. Jassim W. Improving the Mechanical Properties of Epoxy by Adding Sub-micron Cantaloupe Peel Fibers. IHJPAS. 2023;36(2):156-169. https://doi.org/10.30526/36.2.2998

7. Haque M. Physico-mechanical properties of chemically treated palm and coir fiber reinforced polypropylene composites.Bi Tech. 2009;100(20):4903-4906. https://doi.org/10.1016/j.biortech. 2009.04.072

8. Abidnejad R. Baniasadi H. Fazeli M. Lipponen S. Kontturi E. Rojas O. Mattos B. High-fiber content composites produced from mixed textile waste: Balancing cotton and polyester fibers for improved composite performance, International, IJBM.2025;292:1-10. https://doi.org/10.1016/ j.ijbiomac.2024.139227

9. Fadhil R. Mahdi S. Effect of Pistachio Husks Powder Additive on Unsaturated Polyester Composites. IHJPAS.2023;36(2):191-200. https://doi.org/10.30526/36.2.3055

10. Yahyaa M. Aleabi S. Enhancing Some Mechanical Properties (Compression, Impact, Hardness, Young modulus) and Thermal Conductivity, Diffusion Coefficient of MicroEpoxy Composites. IHJPAS. 2022;35(3):32-43. https://doi.org/10.30526/35.3.2841

11. Hussein S. Hashim A. Jasim S. Ali N. Ali I. Rashad M. Abd-Elnaiem A. The structural, wettability, thermal, and electromagnetic irradiation shielding characteristics of acrylic polymer/graphene and acrylic polymer/graphene/carbon fiber hybrid polymers.DRM. 2025;154:112-190. https://doi.org/ 10.1016/j.diamond.2025.112190

12. Abd El-Baki R. Abdullah A. Hakamy A. Abd-Elnaiem A. Nanoarchitectonics of Nickel Dimethylglyoxime/γ-alumina Composites: Structural, Optical, Thermal, Magnetic and Photocatalytic Properties. JIOPM,2023;23:3760-3778. https://doi.org/10.1007/s10904-023-02758-x

13. Jasim S, Ali N, Hussein S. Al Bahir A ,Abd EL-Gawaad N. Sedky A. Mebed A, Abd-Elnaiem A. Enhancement of Mechanical Properties, Wettability, Roughness, and Thermal Insulation of Epoxy–Cement Composites for Building Construction.Buildings.2025;15(4):643. https://doi.org/ 10.3390/buildings15040643

14. Fadhil R. Mahdi S. Manufacture of wooden furniture paint using pistachio shell waste. JPCS.2024;2857:1-10. https://doi.org/10.1063/5.0183146

15. Hameed T. Study Of Some Physical Properties Ofstudy Of Epoxy Reinforce With Nano Particles. IJPH. 2017;15(32): 2070-4003 . https://doi.org/10.30723/ijp.v15i32.157

16. Žmindák M. Dudinský M. Computational Modelling of Composite Materials Reinforced by Glass Fibers. Pr Eng.2012;48: P 701-710. https://doi.org/10.1016/j.proeng.2012.09.573

17. Mahdi S. Jassim W. H amad I. Jassim K.Epoxy/Silicone Rubber Blends for Voltage Insulators and Capacitors. En Pro. 2017;119:501-506. https://doi.org/10.1016/j.egypro.2017.07.059

18. Jassim K. Thejee M. Mahdi, S. Study characteristics of (epoxy–bentonite doped) composite materials. IHJPAS. 2017;119:670-679. https://doi.org/10.30723/ijp.v13i26.289

19. Hirayama D. Nunnenkamp L. Braga F. Saron C. Enhanced mechanical properties of recycled blends acrylonitrile–butadiene–styrene/high–impact polystyrene from waste electrical and electronic equipment using compatibilizers and virgin polymers.Ap Pol.2021;139(13):1-11. https://doi.org/10.1002/app.51873

20. Rasheed Z. Hussein S. Experimental study of food waste powder FWP influence on compressive and wear behaviour of polyester composite. JPCS.2021;1795(012037):1-12. https://doi.org/10.1088/1742-6596/1795/1/012037

21. Ahmad H. Waheed A. Aljundi I. Use of Aliphatic Polymeric Polyvinyl Amine as an Aqueous Phase Reactant During Interfacial Polymerization for Fabricating Efficient Organic Solvent Nanofiltration Membrane for Molecular Sieving. Po Sci.2025;63(8):1835-1847.

https://doi.org/10.1002/pol.20240961

22. Hamad Q. Hamad Q. Study the Effect of Nano Ceramic Particles on Some Physical Properties of Acrylic Resins.En Tech. 2017;35(2):124-129. https://doi.org/10.30684/etj.2017.127322

23. Haq M. Burgueño R.Mohanty A. Misra M. Bio-based unsaturated polyester/layered silicate nanocomposites: Characterization and thermo-physical properties. CPA.2009;40(4):540-547. https://doi.org/10.1016/j.compositesa.2009.02.008

24. Gupta H. Kumar H. Gehlaut A. Singh S. Gaur A. Sachan S.Park J. Preparation and characterization of bio-composite films obtained from coconut coir and groundnut shell for food packaging. MCW Man. 2022;24(2):569-581, DOI:10.1007/s10163-021-01343-z

25. Cecen V. Tavman I. Kok M. Aydogdu Y.Epoxy‐and polyester‐based composites reinforced with glass, carbon and aramid fabrics: Measurement of heat capacity and thermal conductivity of composites by differential scanning calorimetry. Po Com. 2019;30(9 ):1299-1311 .,https://doi.org/10.1002/pc.20695

26. Obaid M ,Berto N. Radhi S. Preparation and characterization of UHMWPE reinforced with polyester fibers for artificial cervical disc replacement (ACDR).Bi Sci. 2023;34(12):1758-1769. https://doi.org/10.1080/09205063.2023.2182576

27. Azeez A. Rhee K. Park S. Hui D.Epoxy clay nanocomposites – processing. PAC Eng. 2013;45(1): 308-320. https://doi.org/10.1016/j.compositesb.2012.04.012

28. Favasa A. Bavanish B. Nanoindentation and mechanical characteristic TiO2/polypropylene polymer nanocomposite . Na Bio. 2024;19(3):1255-1263. https://doi:10.15251/DJNB.2024.193.1255

29. Hamdi W. Habubi N. Preparation of epoxy chicken eggshell composite as thermal insulation. A C soc. 2017;54:231-235. https://doi.org/10.1063/5.0184746

30. Fadhil R. Jassi K.The Effect of Aluminum and Copper Powder on the Physical properties of the Epoxy Composite. Ph Conf . 2018;1003(1):012082. DOI:10.1088/1742-6596/1003/1/012082

31. Jasim K. Fadhil R. Shaban A.The effects of copper additives on the glass transition temperature and hardness for epoxy resin. PI Eco. 2019;13(2):163-172 . DOI: 10.1504/PIE.2019.099357.

32. Campana C. Leger R. Sonnier R. Ferry L. Ienny P. Effect of post curing temperature on mechanical properties of a flax fiber reinforced epoxy composite. CPA . 2018;107:171-179.

https://doi.org/10.1016/j.compositesa.2017.12.029