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Optimization of mechanical and dynamic-mechanical properties of electron beam irradiation of reclaimed tire rubber/poly (ethylene-co-vinyl acetate) nanocomposite by design of experiment

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Abstract

Considering the high volume of tire consumption in the world, reuse of tire in the rubber industry is important from an economical and environmental point of view. For this purpose, nanocomposites were prepared successfully through the melt-mixing process based on thermoplastic polyethylene-co-vinyl acetate (EVA) and reclaimed tire rubber (RTR). The samples with different weight ratios of EVA and PTR (30/70, 40/60, and 50/50) and including Cloisite 30B organoclay (2, 4, and 6 phr) were cured through electron beam (EB) irradiation with doses of 100, 150, and 200 kGy. Two types of compatibilizers such as epoxidized natural rubber (ENR 50) and maleic anhydride-grafted ethylene vinyl acetate copolymer (EVA-g-MA) were employed to enhance the dispersion of nanoclay and its interaction with the polymer phases. To study the simultaneous effect of all parameters, their interactions and to reduce the number of samples, two-level partial factorial method with central points and ANOVA was used in Minitab software. The extent of nanolayer intercalation was evaluated using an X-ray diffractometer (XRD). The results indicated the formation of intercalation structure of clay nanoplatelets. Energy-dispersive X-ray (EDX) analysis was studied to analyze the elemental composition of the rubber–clay samples. The EDX maps confirmed the good distribution of nanoclay platelets. Furthermore, tensile test and dynamic mechanical analysis (DMA) were performed. The results of software-aided optimization showed that the highest mechanical properties and the lowest loss factor (Tanδ)max, at its maximum of two phases of the blends were obtained for a sample compatibilized with EVA-g-MA and including 50/50 EVA/RTR and 6 phr nanoclay cured under 200 kGy irradiation dose. The sample compatibilized with ENR50 under similar conditions was ranked next.

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Data availability statement

The authors confirm that the data supporting the findings of this study are available within the article and its supplementary materials.

References

  1. Ramarad S, Ratnam CT, Khalid M, Chuah AL (2015) Improving the properties of reclaimed waste tire rubber by blending with poly (ethylene-co-vinyl acetate) and electron beam irradiation. J Appl Polym Sci 132:1–8

    Google Scholar 

  2. Bijina V, Jandas PJ, Joseph S, Gopu J, Abhitha K, John H (2022) Recent trends in industrial and academic developments of green tyre technology. Polym Bull 12:1–30

    Google Scholar 

  3. Formela K (2021) Sustainable development of waste tires recycling technologies-recent advances, challenges and future trends. Adv Ind Eng Polym Res 4:209–222

    Google Scholar 

  4. Archibong FN, Sanusi OM, Médéric P, Hocine NA (2021) An overview on the recycling of waste ground tyre rubbers in thermoplastic matrices: effect of added fillers. Resour Conserv Recycl 175:105894

    Article  CAS  Google Scholar 

  5. Khui PLN, Rahman MR, Matin MM, Bakri MKB (2022) Recycled rubber waste plastic and its composites. Recycl Plast Biocompos 2022:147–163

    Article  Google Scholar 

  6. Molanorouzi M, Mohaved SO (2016) Reclaiming waste tire rubber by an irradiation technique. Polym Degrad Stab 128:115–125

    Article  CAS  Google Scholar 

  7. Bockstal L, Berchem T, Schmetz Q, Richel A (2019) Devulcanisation and reclaiming of tires and rubber by physical and chemical processes: a review. J Clean Prod 236:117574

    Article  CAS  Google Scholar 

  8. Wiśniewska P, Wang S, Formela K (2022) Waste tire rubber devulcanization technologies: state-of-the-art, limitations and future perspectives. Waste Manag 150:174–184

    Article  PubMed  Google Scholar 

  9. Abd Tayh S, Yousif RA (2018) Effect of blending speed and blade level on the properties of reclaimed rubber modified bitumen. J Eng Appl Sci 13:8386–8392

    Google Scholar 

  10. Xu G, Kong P, Yu Y, Yang J, Zhu M, Chen X (2022) Rheological properties of rubber modified asphalt as function of waste tire rubber reclaiming degree. J Clean Prod 332:130113

    Article  CAS  Google Scholar 

  11. Gumede JI, Carson J, Hlangothi SP, Bolo LL (2020) Effect of single-walled carbon nanotubes on the cure and mechanical properties of reclaimed rubber/natural rubber blends. Mater Today Commun 23:100852

    Article  CAS  Google Scholar 

  12. Saimi NSS, Mamauod SNL, Majid NA, Sarkawi SS, Abidin ZZ (2021) Mechanical properties of tire reclaimed rubber/NR blends: effect of blend ratios. AIP Conf Proce 2339:20116

    Article  CAS  Google Scholar 

  13. El-Nemr KF, Raslan HA, Ali MAM, Hasan MM (2020) Innovative γ-rays irradiated styrene butadiene rubber/reclaimed waste tire rubber blends: a comparative study using mechano-chemical and microwave devulcanizing methods. J Polym Eng 40:267–277

    Article  CAS  Google Scholar 

  14. Salimi A, Abbassi-Sourki F, Karrabi M, Ghoreishy MHR (2021) Investigation on viscoelastic behavior of virgin EPDM/reclaimed rubber blends using generalized maxwell model (GMM). Polym Test 93:106989

    Article  CAS  Google Scholar 

  15. Thitithammawong A, Hayichelaeh C, Nakason W, Jehvoh N (2019) The use of reclaimed rubber from waste tires for production of dynamically cured natural rubber/reclaimed rubber/polypropylene blends: effect of reclaimed rubber loading. J Met Mater Miner 29:2019

    Google Scholar 

  16. Esmizadeh E, Naderi G, Bakhshandeh GR, Fasaie MR, Ahmadi S (2017) Reactively compatibilized and dynamically vulcanized thermoplastic elastomers based on high-density polyethylene and reclaimed rubber. Polym Sci Ser B 59:362–371

    Article  CAS  Google Scholar 

  17. Paran SMR, Naderi G, Ghoreishy MHR, Heydari A (2018) Enhancement of mechanical, thermal and morphological properties of compatibilized graphene reinforced dynamically vulcanized thermoplastic elastomer vulcanizates based on polyethylene and reclaimed rubber. Compos Sci Technol 161:57–65

    Article  CAS  Google Scholar 

  18. Vahidifar A, Esmizadeh E, Elahi M, Ghoreishy MHR, Naderi G, Rodrigue D (2019) Thermoplastic vulcanizate nanocomposites based on polyethylene/reclaimed rubber: a correlation between carbon nanotube dispersion state and electrical percolation threshold. J Appl Polym Sci 136:47795

    Article  Google Scholar 

  19. Ramarad S, Khalid M, Ratnam CT, Chuah AL, Rashmi W (2015) Waste tire rubber in polymer blends: a review on the evolution, properties and future. Prog Mater Sci 72:100–140

    Article  CAS  Google Scholar 

  20. Thevy Ratnam C, Ramarad S, Khalid M, Abdull Rashid S, Mohamed Z (2015) Effect of electron beam radiation on the mechanical properties of low-density polyethylene (LDPE)/waste tire dust (WTD) blends. Macromol Symp 353:47–54

    Article  CAS  Google Scholar 

  21. Thevy Ratnam C, Ramarad S, Siddiqui MK, Abidin ASZ, Chuah LTG (2016) Irradiation cross-linking of ethylene vinyl acetate/waste tire dust: effect of multifunctional acrylates. J Thermoplast Compos Mater 29:464–478

    Article  Google Scholar 

  22. Choi SS, Chung YY (2019) Simple test method for determination of contribution level of crosslink density by crystalline structure of poly (ethylene-co-vinyl acetate) compound. Polym Test 77:105928

    Article  Google Scholar 

  23. Muralidharan MN, Kumar SA, Thomas S (2008) Morphology and transport characteristics of poly (ethylene-co-vinyl acetate)/clay nanocomposites. J Memb Sci 315:147–154

    Article  CAS  Google Scholar 

  24. Sasikala A, Kala A (2018) Thermal stability and mechanical strength analysis of EVA and blend of EVA with natural rubber. Mater today Proc 5:8862–8867

    Article  CAS  Google Scholar 

  25. Kunanusont N, Samthong C, Bowen F, Yamaguchi M, Somwangthanaroj A (2020) Effect of mixing method on properties of ethylene vinyl acetate copolymer/natural rubber thermoplastic vulcanizates. Polymers 12:1739

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  26. Ramarad S, Ratnam CT, Khalid M, Chuah AL, Hanson S (2017) Improved crystallinity and dynamic mechanical properties of reclaimed waste tire rubber/EVA blends under the influence of electron beam irradiation. Radiat Phys Chem 130:362–370

    Article  CAS  Google Scholar 

  27. Ramarad S, Ratnam CT, Munusamy Y, Rahim NAA, Muniyadi M (2021) Thermochemical compatibilization of reclaimed tire rubber/poly (ethylene-co-vinyl acetate) blend using electron beam irradiation and amine-based chemical. J Polym Res 28:1–19

    Article  Google Scholar 

  28. Tavakoli M, Katbab AA, Nazockdast H (2012) NR/SBR/organoclay nanocomposites: effects of molecular interactions upon the clay microstructure and mechano-dynamic properties. J Appl Polym Sci 123:1853–1864

    Article  CAS  Google Scholar 

  29. Khalifeh S, Tavakoli M (2019) Styrene butadiene rubber/epoxidized natural rubber/carbon filler nanocomposites: microstructural development and cure characterization. Iran Polym J 28:1023–1033

    Article  CAS  Google Scholar 

  30. Měřínská D, Pata V, Sýkorová L, Šuba O (2019) Clay/EVA copolymer nanocomposite-processing and properties. Int Sci Tech Conf MANUF 2019:507–517

    Google Scholar 

  31. Raji M, Mekhzoum ME, Qaiss AE, Bouhfid R (2016) Nanoclay modification and functionalization for nanocomposites development: effect on the structural, morphological, mechanical and rheological properties. Nanoclay Reinf Polym Compos 2016:1–34

    Google Scholar 

  32. Biron M (2016) Industrial applications of renewable plastics: environmental, technological, and economic advances. William Andrew

  33. Shokuhi Rad A, Ebrahimi D (2017) Improving the mechanical performance and thermal stability of a PVA-clay nanocomposite by electron beam irradiation. Mech Compos Mater 53:373–380

    Article  CAS  Google Scholar 

  34. Bee ST, Sin LT, Hoe TT, Ratnam CT, Bee SL, Rahmat AR (2018) Study of montmorillonite nanoparticles and electron beam irradiation interaction of ethylene vinyl acetate (EVA)/devulcanized waste rubber thermoplastic composites. Nucl Instrum Methods Phys Res B 423:97–110

    Article  CAS  Google Scholar 

  35. Akhavan A, Khoylou F, Sheikh N, Kazeminejad H (2021) Effect of electron beam irradiation on the thermal, mechanical and aging behaviors of polyethylene/carbon black nanocomposite. Radiat Phys Chem 187:109582

    Article  CAS  Google Scholar 

  36. Rajaee P, Ashenai Ghasemi F, Fasihi M, Saberian M (2020) Experimental analysis and optimization of mechanical and physical properties of light-weight bulk molding compound by design of experiment. J Macromol Sci Part B 60:237–256

    Article  Google Scholar 

  37. Su YY, Rwei SP, Gou WJ, Chan HH, Cheng KC (2012) Effect of polar interactions on the structure and rheology of EVA/montmorillonite nanocomposites. J Thermoplast Compos Mater 25:987–1003

    Article  Google Scholar 

  38. Tavakoli M, Katbab AA, Nazockdast H (2010) Effect of the compatibilizer upon the properties of styrene-butadiene rubber organoclay nanocomposites. Sci Technol 23:65–74

    CAS  Google Scholar 

  39. Ramarad S (2016) Effect of different compatibilization strategies on the properties of RTR/EVA blend. PhD thesis, Univ Nottingham, Nottingham, pp 80–123

    Google Scholar 

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Acknowledgements

The authors would like to thank the group of operators of RHODOTRON electron beam accelerator of Yazd Radiation Processing Center for irradiation of the samples.

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Authors and Affiliations

  1. Department of Chemical and Polymer Engineering, Yazd University, Yazd, Iran

    Atefeh Sadeghi-Askari & Mitra Tavakoli

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  1. Atefeh Sadeghi-Askari
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  2. Mitra Tavakoli
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Correspondence to Mitra Tavakoli.

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Sadeghi-Askari, A., Tavakoli, M. Optimization of mechanical and dynamic-mechanical properties of electron beam irradiation of reclaimed tire rubber/poly (ethylene-co-vinyl acetate) nanocomposite by design of experiment. Iran Polym J 32, 417–431 (2023). https://doi.org/10.1007/s13726-022-01135-8

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