Impregnation Quality of Carbon Fiber Reinforced Waste Polypropylene with Variation of Fiber Treatment and Matrix Recycling Cycles

Cahyo  Budiyantoro; Harini  Sosiati; Ferriawan  Yudhanto; Hilmi F.  Piranto; Kevin A.  Syahputra

doi:10.6180/jase.202410_27(10).0012

Impregnation Quality of Carbon Fiber Reinforced Waste Polypropylene with Variation of Fiber Treatment and Matrix Recycling Cycles

Material Engineering Environmental Engineering

Cahyo Budiyantoro¹This email address is being protected from spambots. You need JavaScript enabled to view it., Harini Sosiati¹, Ferriawan Yudhanto², Hilmi F. Piranto¹, and Kevin A. Syahputra¹

¹Departement of Mechanical Engineering, Universitas Muhammadiyah Yogyakarta, Yogyakarta, 55183, Indonesia

²Automotive Engineering Technology Department, Universitas Muhammadiyah Yogyakarta, Yogyakarta, 55183, Indonesia

Received: June 7, 2023
Accepted: November 18, 2023
Publication Date: January 8, 2024

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202410_27(10).0012

Carbon Fiber Reinforced Thermoplastics offer a promising alternative engineering material characterized by high stiffness, strength, lightweight, and superior formability compared to traditional metal counterparts. However, the high viscosity of the thermoplastic matrix poses a significant challenge in achieving optimal impregnation quality. The quality of impregnation plays a crucial role in determining the mechanical properties of the composite. Therefore, this research aims to investigate the impregnation quality in carbon fiber-reinforced recycled polypropylene composites. Recycled polypropylene with recycling cycles of 1, 3, and 5 times was utilized as the matrix material. Carbon fibers underwent three different treatment variations: immersion in liquid nitrogen, heating to 600°C followed by immersion in liquid nitrogen, and treatment with a silane coupling agent. The interfacial shear strength was assessed using a pull-out test, and the microstructure was examined through scanning electron microscopy (SEM). The research findings reveal that the highest interfacial shear strength value of 14.5 MPa was achieved in the recycled polypropylene material with a recycling cycle of 5 times, employing the liquid nitrogen immersion treatment for the carbon fibers. Conversely, the lowest interfacial shear strength value of 8.6 MPa was observed in the recycled polypropylene material with a recycling cycle of 1 time, involving the coupling agent treatment for the carbon fibers. These results were further substantiated by microstructure observations using SEM.

Keywords: Interfacial shear strength; Cryogenic treatment; Silane coupling agent; Recycled polypropylene

[1] C. Unterweger, J. Duchoslav, D. Stifter, and C. Fürst, (2015) “Characterization of carbon fiber surfaces and their impact on the mechanical properties of short carbon fiber reinforced polypropylene composites" Composites Science and Technology 108: 41–47. DOI: 10.1016/j.compscitech.2015.01.004.
[2] S. Hegde, B. S. Shenoy, and K. Chethan, (2019) “Review on carbon fiber reinforced polymer (CFRP) and their mechanical performance" Materials Today: Proceedings 19: 658–662. DOI: 10.1016/j.matpr.2019.07.749.
[3] L. Liu, C. Jia, J. He, F. Zhao, D. Fan, L. Xing, M. Wang, F. Wang, Z. Jiang, and Y. Huang, (2015) “Interfacial characterization, control and modification of carbon fiber reinforced polymer composites" Composites Science and Technology 121: 56–72. DOI: 10.1016/j.compscitech.2015.08.002.
[4] M. Tomioka, T. Ishikawa, K. Okuyama, and T. Tanaka, (2017) “Recycling of carbon-fiber-reinforced polypropylene prepreg waste based on pelletization process" Journal of Composite Materials 51(27): 3847–3858. DOI: 10.1177/0021998317694423.
[5] S. Tiwari and J. Bijwe, (2014) “Surface treatment of carbon fibers-a review" Procedia Technology 14: 505– 512. DOI: 10.1016/j.protcy.2014.08.064.
[6] H. S. Rochardjo and C. Budiyantoro, (2021) “Manufacturing and analysis of overmolded hybrid fiber polyamide 6 composite" Polymers 13(21): 3820. DOI: 10.3390/polym13213820.
[7] Z. Dai, B. Zhang, F. Shi, M. Li, Z. Zhang, and Y. Gu, (2011) “Effect of heat treatment on carbon fiber surface properties and fibers/epoxy interfacial adhesion" Applied Surface Science 257(20): 8457–8461. DOI: 10.1016/j.apsusc.2011.04.129.
[8] N. Wenzhong, (2015) “The effect of coupling agents on the mechanical properties of carbon fiber-reinforced polyimide composites" Journal of Thermoplastic Composite Materials 28(11): 1572–1582. DOI: 10.1177/0892705714535794.
[9] Y. Guo, Y. Li, S. Wang, Z.-X. Liu, B. Cai, and P.-C. Wang, (2019) “Effect of silane treatment on adhesion of adhesive-bonded carbon fiber reinforced nylon 6 composite" International Journal of Adhesion and Adhesives 91: 102–115. DOI: 10.1016/j.ijadhadh.2019.03.008.
[10] P. Ton, (2003) “Composites for recyclability" materials For Recyclability 6: 102–115. DOI: 10.1016/S1369-7021(03)00428-0.
[11] T. Chen, C. D. Mansfield, L. Ju, and D. G. Baird, (2020) “The influence of mechanical recycling on the properties of thermotropic liquid crystalline polymer and long glass fiber reinforced polypropylene" Composites Part B: Engineering 200: 108316. DOI: 10.1016/j.compositesb. 2020.108316.
[12] Torayca. T700S Data Sheet No. CFA-005. Santa Ana. 2018.
[13] C. Budiyantoro, H. S. Rochardjo, and G. Nugroho, (2020) “Effects of processing variables of extrusion– pultrusion method on the impregnation quality of thermoplastic composite filaments" Polymers 12(12): 2833. DOI: 10.3390/polym12122833.
[14] M. Sharma, S. Gao, E. Mäder, H. Sharma, L. Y. Wei, and J. Bijwe, (2014) “Carbon fiber surfaces and composite interphases" Composites Science and Technology 102: 35–50. DOI: 10.1016/j.compscitech.2014.07.005.
[15] C. Fellah, J. Braun, C. Sauder, F. Sirotti, and M.-H. Berger, (2021) “Impact of ex-PAN carbon fibers thermal treatment on the mechanical behavior of C/SiC composites and on the fiber/matrix coupling" Carbon Trends 5: 100107. DOI: 10.1016/j.cartre.2021.100107.
[16] S. H. Han, H. J. Oh, and S. S. Kim, (2014) “Evaluation of fiber surface treatment on the interfacial behavior of carbon fiber-reinforced polypropylene composites" Composites Part B: Engineering 60: 98–105. DOI: 10.1016/j.compositesb.2013.12.069.
[17] Y. Guo, Y. Li, S. Wang, Z.-X. Liu, B. Cai, and P.-C. Wang, (2019) “Effect of silane treatment on adhesion of adhesive-bonded carbon fiber reinforced nylon 6 composite" International Journal of Adhesion and Adhesives 91: 102–115. DOI: 10.1016/j.ijadhadh.2019.03.008.
[18] A. P. Utomo, R. D. Bintara, et al. “Optimization Injection Molding Parameters of Polypropylene Materials to Minimize Product Not Complete Defects Using the Taguchi Method”. In: Proceeding International Conference on Religion, Science and Education. 1. 2022, 605–611.
[19] A. Hussain, V. Podgursky, D. Goljandin, M. Antonov, F. Sergejev, and I. Krasnou, (2023) “Circular Production, Designing, and Mechanical Testing of PolypropyleneBased Reinforced Composite Materials: Statistical Analysis for Potential Automotive and Nuclear Applications" Polymers 15(16): 3410. DOI: 10.3390/polym15163410.
[20] M. Sharan Chandran and K. Padmanabhan, (2019) “Microbond fibre bundle pullout technique to evaluate the interfacial adhesion of polyethylene and polypropylene self reinforced composites" Applied Adhesion Science 7: 1–22. DOI: 10.1186/s40563-019-0121-z.
[21] S.-J. Joo, M.-H. Yu, W. S. Kim, J.-W. Lee, and H.-S. Kim, (2020) “Design and manufacture of automotive composite front bumper assemble component considering interfacial bond characteristics between over-molded chopped glass fiber polypropylene and continuous glass fiber polypropylene composite" Composite Structures 236: 111849. DOI: 10.1016/j.compstruct.2019.111849.
[22] W.-C. Chen, M.-H. Nguyen, W.-H. Chiu, T.-N. Chen, and P.-H. Tai, (2016) “Optimization of the plastic injection molding process using the Taguchi method, RSM, and hybrid GA-PSO" The International Journal of Advanced Manufacturing Technology 83: 1873–1886. DOI: 10.1007/s00170-015-7683-0.
[23] . R. Andrés Muñoz. Optimization of Structures and Components. The Science of Microfabrication. London: Springer, 2013.
[24] T. Ginghtong, N. Nakpathomkun, and C. Pechyen, (2018) “Effect of injection parameters on mechanical and physical properties of super ultra-thin wall propylene packaging by Taguchi method" Results in Physics 9: 987– 995. DOI: 10.1016/j.rinp.2018.04.001.
[25] P. Bangert. Optimization for Industrial Problems. Bremen: Springer, 2012.