• Emmanuel Ekpruke Africa Center of Excellence Center for Oilfields Chemicals Research (ACE-CEFOR) University of Port Harcourt, Port Harcourt, Nigeria
  • Ossia CV Applied Mechanics & Design (AMD) Research Group Department of Mechanical Engineering, University of Port Harcourt, Port Harcourt, Nigeria
  • Big-Alabo A Applied Mechanics & Design (AMD) Research Group Department of Mechanical Engineering, University of Port Harcourt, Port Harcourt, Nigeria



Brakepads, Eco-friendly, Asbestos, Fibers, Mechanical and tribological properties


Asbestos has been a significant reinforcement material in producing automobile friction components due to its physical and mechanical properties. However, the replacement of asbestos and other toxic metals employed in producing conventional friction components has been called for due to health and environmental concerns. Research in this area has led to the development of more efficient non-asbestos-based organic friction materials for automobiles. In this study, recent progress in the manufacture of non-asbestos-based, eco-friendly automotive brake pads is reviewed. A thorough classification of conventional and non-conventional friction materials used in the development of brake pads is presented, and the production method and the roles of friction materials in the mechanical and tribological properties of the manufactured pads are discussed. The study shows that the performance of brake pads manufactured from plants, animals, or plants and animal materials (hybrid) varies depending on the physical, chemical and mechanical properties of the plants and animals.


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Darius GS, Berhan MN, David NV, Shahrul AA, Zaki MB. Characterization of brake pad friction materials. In: Brebbia CA, Alberto A (eds) Computational Methods and Experiments in Materials Characterization II. Southhampton: WIT Press; 2005, p.43-50.

Jaafar TR, Selamat MS, Kasiran R. Selection of Best Formulation for Semi-Metallic Brake Friction Materials Development. Powder Metallurgy. Shanghai, China: InTech; 2012.

Harper G.A., Review of Brakes and Friction Materials. The History and Development of the Technologies. London: Mechanical Engineering Publications; 1997.

Blau PJ, McLaughlin JC. Effect of water films and sliding speed on the frictional behavior of truck disc brake materials. Int J Trichology. 2003; 36:709–15.

Baker, A. K. 1986. Vehicle braking. London: Pentech Press.

Borawski A. Suggested research method for testing selected tribological properties of friction components in vehicle braking systems. Acta Mechanica et Automatica. 2016;10(3):223–6.

Kulikowski K, Szpica D. Determination of directional stiffnesses of vehicels’ tires under a static load operation. Maintenance and Reliability. 2014;16(1):66–72.

Wahlstrom J (2009) Towards a simulation methodology for prediction of airborne wear particles from disc brakes: licentiate thesis. Department of Machine Design Royal Institute of Technology, Stockholm, ISBN 978-91-7415-391-0

Automobiles and the Asbestos Industry. 1922. Automotive Ind. March 2:520–522.

Stenberg, T. R. 1935. Brake linings. Akron, OH.

Nicholson, G. (1995), Facts About Friction, P&W Price Enterprises, Inc., Croydon, PA.

Skinner, H. C. W., Ross, M., and Frondel, C. 1988. Asbestos and other fibrous materials—Mineralogy, crystal chemistry and health effects. New York: Oxford University Press.

Auribault, M. 1906. Sur l’hygiene et al securite des ourriers dan les filatures et tissages d’amiante. Bull. Inspect. Trav. Quatorz. Ann. 1/2:120–132.

Murray, H. M. 1907. Report of the committee on compensation for industrial diseases, pp. 127–128. Minutes of Evidence. London: HM Stationery Office

Fahr, (unknown). 1914. Aerztlicher verein in Hamburg. Munch. Med. Wochensch. 17(11), 625–626.

Cooke, W. E. 1924. Fibrosis of the lungs due to the inhalation of asbestos dust. Br. Med. J. 2:147.

Cooke, W. E. 1927. Pulmonary asbestosis. Br. Med. J. 2:1024–1025.

Pancoast, H. K., and Pendergrass, E. P. 1925. A review of our present knowledge of pneumoconiosis, based upon roentgenologic studies, with notes on the pathology of the condition. Am. J. Roentgenol. Rad. Ther. 14:381–423.

Oliver, T. 1927. Clinical aspects of pulmonary asbestosis. Br. Med. J. 2:1026–1027.

Simson, F. W. 1928. Pulmonary asbestosis in South Africa. Br. Med. J.:885–887.

Seiler, H. E. 1928. A case of pneumoconiosis result of the inhalation of asbestos dust. Br. Med. J. 2:981–982.

Wood, W. B. 1929. Pulmonary asbestosis. Tubercle 10:353–363.

Wood, W. B., and Page, D. S. 1929. A case of pulmonary asbestosis. Tubercle 10:457–461.

Stewart, M. J., and Haddow, A. C. 1929. Demonstration of the peculiar bodies of pulmonary asbestosis (“asbestosis bodies”) in material obtained by lung puncture and in the sputum. J. Pathol. Bacteriol. 32:172.

Merewether, E. R. A., and Price, C. W. 1930. Report on effects of asbestos dust on the lungs and dust suppression in the asbestos industry. London: His Majesty’s Stationery Office.

Doll, R. 1955. Mortality from lung cancer in asbestos workers. Br. J. Ind. Med. 12:81–86.

Wanger, J. C., Sleggs, C. A., and Marchand, P. 1960. Diffuse pleural mesothelioma and asbestos exposure in the north western Cape Province. Br. J. Ind. Med. 17:260–271.

Mancuso, T. F., and Coultier, E. J. 1963. Methodology in industrial health studies: The cohort approach, with special reference to an asbestos company. Arch. Environ. Health 6:210–226.

Selikoff, I. J., Churg, J., and Hammond, E. C. 1964. Asbestos exposure and neoplasia. J. Am. Med. Assoc. 188:142–146.

Selikoff, I. J., Hammond, E. C., and Churg, J. 1965. Relation between exposure to asbestos and mesothelioma. N. Engl. J. Med. 272:560–565.

Levine, R. J. 1981. Asbestos: An information resource. NIH Publication No. 81–1681. Bethesda, MD: National Cancer Institute.

Abutu, J., Lawal, S.A., Ndaliman, M.B., Lafia Araga, R.A. (2018), An overview of brake pad production using non–hazardous reinforcement materials, ACTA Technica Corviniensis– Bulletin of Engineering, Tome XI, 143-156

Arman, M., Singhal, S., Chopra, P., Sarkar, M. (2018), A review on material and wear analysis of automotive Break Pad, Materials Today: Proceedings 5, 28305–28312

Lawal, S.S., Ademoh, N.A., Bala, K.C., Abdulrahman, AS (2019), Reviews in Automobile Brake Pads Production and Prospects of Agro Base Composites of Cashew Nut Shells and Nigerian Gum Arabic Binder, Covenant Journal of Engineering Technology, 3(2), 2682-5317

Saindane, U.V., Soni, S., Menghani, J.V. (2020), Recent research status on modern friction materials-an Overview, IOP Conf. Series: Materials Science and Engineering, 810, doi:10.1088/1757-899X/810/1/012067

Borawski, A. (2020), Conventional and unconventional materials used in the production of brake pads – review, Sci Eng Compos Mater 2020; 27:374–396,

Bijwe J. Composites as friction materials: Recent Developments in Non- Asbestos Fibre reinforced Friction Materials. Polym Compos. 1997;18(3):378–95.

Venugopal S, Karikalan L. A review paper on aluminium-alumina arrangement of composite materials in automotive brakes. Mater Today Proc. 2020;21(1):320–3.

Kryachek VM. Friction composites: traditions and new solutions (review). I. Powder materials. Powder Metall Met Ceramics. 2004;43(11-12):581–92.

Kryachek VM. Friction Composites: Traditions and New Solutions (Review). Part 2. Composite Materials. Powder Metall Met Ceramics. 2005;44(1-2):5–16.

Naresh Kumar K, Suman KN. Review of brake friction materials for future development. Journal of Mechanical and Mechanics Engineering. 2017;3(2):1–2.

Liu Y, Bao J, Hu D, Ge S, Yin Y, Liu T. A Review on the Research Progress of Nano Organic Friction Materials. Recent Pat Nanotechnology. 2016;10(1):11–9.

Kato K. Wear in relation to friction – a review. Wear. 2000; 241(2):151–7.

Chan D, Stachowiak GW. Review of automotive brake friction materials. Journal automobile engineering Part D. 2004; 218:95366.

Aza CA. Composites in Automotive Applications: Review onbrake pads and discs. 2014 Available from:

Gujrathi TV, Damale AV. A review on friction materials of automobile disc brake pad. International Journal of Engineering [ARDIJEET]. Educ Technol. 2015;3(2):1–4.

Xiao X, Yin Y, Bao J, Lu L, Feng X. Review on the friction and wear of brake materials. Adv Mech Eng. 2016;8(5):1–10.

Tewari U and Bijwe J 1993 Recent developments in tribology of fibre reinforced composites with thermoplastic and thermosetting matrices, Advances in Composite Tribology ed K Friedrich (Amsterdam: Elsevier)

Thiyagarajan V, Kalaichelvan K, Srinivasan K, Venugopal S and Vijay R 2015 Influence of specific heat capacity on hybrid non-asbestos brake pad formulation Journal of Balkan Tribological Association 21 102–19

Rajan B S, Balaji M A S, Sathickbasha K and Hariharasakthi sudan P 2018 Influence of binder on thermomechanical and tribological performance in brake pads Tribology in Industry 40 654–69

Dureja N, Bijwe NJ, Gurunath PV. Role of type and amount of resin on performance behavior of non-asbestos organic (NAO) friction materials. Journal of reinforced plastic and composites. 2009;28(4):489-97.

Incesu A, Korkmaz K, Cetintas OO, Kubuc O, Korkmaz M, Karanfil. Design of comosite brake pads for metro with statistical approach. In: 2. Uluslar arası Raylı Sistemler Mühendisliği Sempozyumu (ISERSE’13); 2013 Oct 9-11; Karabük, Turkey.

Aigbodion, V. S., Agunsoye, J. O., Hassan, S. B., Asuke, F. and Akadike, U. (2010): Development of Asbestos–free Brake pad using Bagasse. Tribology in industry.

Adegbola, J.O., Adedayo, S.M., Ohijeagbon, I.O. (2017), development of cow bone resin composites as a friction material for automobile braking systems, Journal of Production Engineering, 20(1), 69-74

Ikpambese, K. K., Gundu, D. T. and Tuleu, L. T. (2014): Evaluation of palm kernel fibres (PKFs) for production of asbestos–free automotive brake pads. Journal of King Saud University – Engineering Sciences. 28 (1), 110–118.

Bala, K.C., Lawal, S.S., Ademoh, N.A., Abdulrahman, A.S., Adedipe, O. (2021), Effects of Nigerian Plant Gum Binder in the Optimized Multi-response Performance of Cashew Nut Shells Based Composites for Automobile Brake Pads, The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), 12, 17-27

Kholil, A., Dwiyati, S.T., Siregar, J.P., Sulaiman, R. (2020), Development Brake Pad from Composites of Coconut Fibre, Wood Powder and Cow Bone for Electric Motorcycle, International Journal of Scientific & Technology Research, 9(2), 2938-2942

Zhang, G., Yangchuan KeMeiru QinHua ShenJingshui Xu, Preparations and tribological properties of COPNA copolymer materials. Procedia Engineering 102 (2015) 615 – 624

Zhao J B, Q L Lin, Y Chen, Y L Ke, Synthesis and Properties of Allyl-COPNA Resin, Polymer Materials Science and Engineering. 24(2002) 51-53.

Lin Q, Zheng R, Tian P. Preparation and characterization of BMI resin/graphite oxide nanocomposites, Polymer Testing. 29(2010) 537-543.

Dongsheng Fu, Zhu Guangming, Zhang Qiang, Recent advances in synthesis andapplication fields of COPNA, Polymer Materials Science and Engineering. 20(2004) 15-18

Shivakumar K, Abali F, Sadler R. Development of cyanate ester-based carbon/carbon composites. ICCM-12: Proceedings of the 1999 International Conference on Composite Material; 1999 Jul 5-9; Paris, France.

Avallone EA, Baumeister T, Sadegh AM. Marks Handbook for Mechanical Engineers. 11th ed. New York: McGraw-Hill; 2007.

Sugözü B, Dağhan B. Effect of BaSO4 on Tribological Properties of Brake Friction Materials. Int J Innov Res Sci Eng Technol. 2016;5(12):30–5.

Menapace C, Leonardi M, Matějka V, Gialanella S, Straffelini G. Dry sliding behavior and friction layer formation in copper-free barite containing friction materials. Wear. 2018;398-399:191–200.

El Soeudy RI, El-Butch AM, Fahim AF, Kamal AM. Influence of barium sulfate on the physical, mechanical, tribological properties and dynamic behavior of a brake lining. ICSV 17: The 17th International Congress on Sound & Vibration; 2010 Jul 18-22; Cairo, Egypt.

Xu, X. L., Lu, X., Yang, D. L., Zhang, E. (2015), Effects of vermiculite on the tribological behavior of PI-matrix friction materials, IOP Conf. Series: Materials Science and Engineering 87 (2015) 012024 doi:10.1088/1757-899X/87/1/012024

Mitsumoto M. Copper free brake pads with stable friction coeflcient. Japan: Hitachi Chemical Technical Report; 2017 Mar. Report No.59. Sponsored by the Social Infrastructure-related Materials Development Center, R&D Headquarters.

Kumar M, Bijwe J. Role of different metallic fillers in non-asbestos organic (NAO) friction composites for controlling sensitivity of coeflcient of friction to load and speed. Tribol Int.2010;43(5-6):965–74.

Borawski A, Borawska E, Obidziński S, Tarasiuk W. Effect of the chemical composition of the friction material used in brakes on its physicochemical properties. Laboratory tests. Przem Chem. 2020;99(5):1000–4.

Borawski A, Mieczkowski G, Szpica D. Simulation tests of peripheral friction brake used in agricultural machinery shafts. Proceedings of Engineering for Rural Development: 19th International Scientific Conference; 2020 May 20-22; Jelgava, Latvia. Latvia University of Life Sciences and Technologies; 2020. p. 494-502

Shorowordi KM, Haseeb AS, Celis JP. Tribo-surface characteristics of Aluminium-Boron Carbide and Aluminium-SiliconeCarbide composites worn under different contact pressures. Journal of Wear. 2006; 261:634–41.

WanNik WB. Ayoba AF, Syahrullailb S, Masjuki HH, Ahmad AF. The effect of boron friction modifier on the performance of brake pads [IJMME]. International Journal of Mechanical and Materials Engineering. 2012;7(1):31–5.

Muzathik AM, Mohd Nizam YB, Prawoto Y, Ahmad MF, Wan Nik WB. Friction coeflcients of boron mixed brake pads. General Applications and Processing of Materials: International Conference on Composites or Nano Engineering; 2011 Jul 24-30; Shanghai, China.

Cho MH, Ju J, Kim SJ, Jang H. Tribological properties of solid lubricants (graphite, Sb2S3, MoS2) for automotive brake friction materials. Wear. 2006;260(7-8):855–60.

Österle W, Dmitriev AI. The role of solid lubricants for brake friction materials. Lubricants. 2016;4-5(1):1–22.

Gilardi R, Alzati L, Thiam M, Brunel JF, Desplanques Y, Dufrenoy P, et al. Copper Substitution and Noise Reduction in Brake Pads: Graphite Type Selection. Materials (Basel). 2012;5(11):2258–69.

Kim SJ, Cho MH, Cho KH, Jang H. Complementary effects of solid lubricants in the automotive brake lining. Tribol Int. 2007;40(1):15–20.

Radhakrishnan C, Yokeswaran P, Vengadeshprasadh M, Vishnuhasan A, Vimalraj T, Velusamy M. Design and analysis of disc brake with titanium alloy. International Journal of Innovative Science. Engineering & Technology. 2015;2(5):1044–50.

Kim YC, Cho MH, Kim SJ, Jang H. The effect of phenolic resin, potassium titanate, and CNSL on the tribological properties of brake friction materials. Wear. 2008;264(3-4):204–10.

Sugözü I. Investigation of Using Brass Particles in Automotive Brake Linings. Int J Innov Res Sci Eng Technol. 2016;5(12):24–9.

Eddoumy F, Kasem H, Dufrenoy P, Celis JP, Desplanques Y. (2013), friction and wear studies on the temperature dependence of brake-pad materials containing brass. MATEC Web of Conferences. 7:56-58. 0701020

Kharrat MB, Cristol AL, Elleuch R, Desplanques Y. Brass in brake linings: key considerations for its replacement. Proc Inst Mech Eng, Part J J Eng Tribol. 2015;208-210:1–8.

Morshed MM, Haseeb AS. Physical and chemical characteristics of commercially available brake shoe lining materials: a comparative study. J Mater Process Technol. 2004;155–156:1422–7.

Tarasiuk W, Szymczak T, Borawski A. Investigation of surface after erosion using optical profilometry technique. Metrol Meas Syst. 2020;27(2):265–73.

Eriksson, M., Lord, J., Jacobson, S. (2001), Wear and contact conditions of brake pads: dynamical in situ studies of pad on glass Wear 249 272–8

Anderson A E 2001 Friction Lubrication and Wear Technology 18 (United States of America: ASM International) 569

Eriksson M, Bergman F, Jacobson S. On the nature of tribological ontact in automotive brakes. Wear. 2002;252(1-2):26–36.

Bhane AB, Kharde RR, Honrao VP. Investigation of Tribological Properties for Brake Pad Material: A Review. Int J Emerg Technol Adv Eng. 2008;4(9):530–2.

Gopal P, Dharani LR, Frank D. Hybrid phenolic friction composites containing Kevlar pulp: part II-Wear surface characterization. Wear. 1996;193(2):180–5.

Sampath V. Studies on mechanical, friction, and wear characteristics of Kevlar and glass fibre-reinforced friction materials. Mater Manuf Process. 2006;21(1):47–57.

Yu LG, Yang SR. Investigation of the transfer film characteristics and tribochemical change of Kevlar fibres reinforced polyphenylene-sulfide composites in sliding against a tool steel counterface. Thin Solid Films. 2002;413(1-2):98–103.

Al Faruque, MA, Md Salauddin, Raihan, M., Chowdhury, I.Z., Ahmed, F. Shimo, SS (2021), Bast Fibre Reinforced Green Polymer Composites: A Review on Their Classification, Properties, and Applications, Journal of Natural Fibres, DOI: 10.1080/15440478.2021.1958431

Kumar S, Gangil B, Patel VK (2016) Physico-mechanical and tribological properties of Grewia

Kumar S, Kumar Y, Gangil B, Patel VK (2017a) Effect of agro-waste and bio-particulate filler on mechanical and wear properties of sisal fiber reinforced polymer composites. Mater Today Proc 4:10144–10147

Kumar S, Mer KKS, Parsad L, Patel VK (2017b) A review on surface modification of bast fiber as reinforcement in polymer composites. Int J Mater Sci Appl 6:77–82

Kumar S, Patel VK, Mer KKS, Gangil B, Singh T, Fekete G (2019) Himalayan natural fiber-reinforced epoxy composites: effect of Grewia optiva/Bauhinia Vahlii fibers on physicomechanical and dry sliding wear behavior. J Nat Fibres.

Kumar, S., Prasad, L., Patel, V.K., Kumar, V., Kumar, A., Yadav, A., Winczek, J. Physical and Mechanical Properties of Natural Leaf Fibre-Reinforced Epoxy Polyester Composites. Polymers 2021, 13, 1369.

Venkateshwaran N, Ayyasamy Elayaperumal (2010) Banana fiber reinforced polymer composites-a review. J Reinf Plast Compos 29:2387–2396

Patel VK, Chauhan S, Katiyar J (2018) Physico-mechanical and wear properties of novel sustainable sour weed fiber reinforced polyester composites. Mater Res Express 5:045310

Kumar S, Patel VK, Mer KKS et al (2018) Influence of woven bast-leaf hybrid fiber on the physicomechanical and sliding wear performance of epoxy based polymer composites. Mater Res Express 5:105705

Ilanko AK, Vijayaraghavan S (2016) Wear behavior of asbestos-free eco-friendly composites for automobile brake materials. Friction 4:144–152

Saleem, A., Medina, L., Skrifvars, M. (2020), Mechanical performance of hybrid bast and basalt fibres reinforced polymer composites, Journal of Polymer Research, 27(61)

Ünald, M., Kuş, R. (2018), The determination of the effect of mixture proportions and production parameters on density and porosity features of Miscanthus reinforced brake pads by Taguchi method, International Journal of Automotive Engineering and Technologies, 7 (1), 48-57

Idris, U. D., Aigbodion, V. S., Abubakar, I. J. and Nwoye, C. I. (2015), Eco–friendly Asbestos free Brake–pad: Using Banana Peels. Journal of King Saud University-Engineering Sciences. 27, 185-192.

Charles, J.S., Devaprasad, M.E. (2016), development of brake pad using orange peel reinforcement polymer composite, Global Journal of Advanced Engineering Technologies and Sciences, 3(5), 29-41

Blau, J. P. (2001): Compositions, Functions and Testing of Friction Brake Materials and their Additives. A report by Oak Ridge National Laboratory for US Dept. of Energy. Retrieved from:http://www.Ornl.-gov/ webworks/cppr/y2001/rpt/112956.pdf, 78–80, on February 2020.

Lawal, S.S., Ademoh, N.A., Bala, K.C., Salawu, A.A. (2019), production and testing of brake pad composites made from cashew nut shells and plant gum binder, Journal of NIMechE, 9(2) 54-63

Alengaram, U.J., H. Mahmud and M.Z. Jumaat, 2010. Comparison of mechanical and bond properties of oil palm kernel shell concrete with normal weight concrete. Int. J. Phys. Sci., 5: 1231-1239.

Ibhadode, A.O.A, Dagwa, I.M. (2008), development of asbestos free friction pad material from palm kernel shell. J Braz Soc Mech Sci Eng 30(2):166–173

Olele, P.C, Nkwocha, A.C., Ekeke, I.C., Ileagu, M.O., Okeke, E.O. (2016), Assessment of Palm Kernel Shell as Friction Material for Brake Pad Production, International Journal of Engineering and Management Research, 6(1), 2250-0758

Ossia C.V., Big-Alabo A., Ekpruke E.O. (2021), effect of grain size on the physicomechanical properties, Advances in Manufacturing Science and Technology, DOI: 10.2478/amst-2019-0023, 44(4) 135–14

Apasi, A., Ibrahim, A.A., Abdul-Akaba, T. (2019), Design and Production of a Brake Pad Using Coconut Shell as Base Material, International Journal of Advances in Scientific Research and Engineering, 5 (3), 65-74

Oladele, I.O., Adewole, T.A. (2013), Influence of Cow Bone Particle Size Distribution on the Mechanical Properties of Cow Bone-Reinforced Polyester Composites, Biotechnology Research International, 5 pp,

Amaren, S.G. Yawas, D.S. Aku SY (2013), effect of periwinkles shell particle size on the wear behavior of asbestos free brake pad, Results in Physics, 3:109–114, DOI: 10.1016/j.rinp.2013.06.004

Elakhame, Z. U., Olotu, O. O., Abiodun, Y. O., Akubueze, E. U., Akinsanya, O. O., Kaffo, P. O. and Oladele, O. E. (2017): Production of Asbestos Free Brake Pad Using Periwinkle Shell as Filler Material. International Journal of Scientific and Engineering Research. 8(6), 1728-1735.

Ossia, C.V., Big-Alabo, A. (2021), Development and Characterization of Green Automotive Brake pads from Waste Shells of Giant African Snail (Achatina achatina L.), International Journal of Advanced Manufacturing Technology, 9(10)

Abutu, J., Lawal, S.A., Ndalima, M.B., Lafia-Araga, R.A., Adedipe, O., Choudhury, I.A. (2018), Effects of process parameters on the properties of brake pads developed from seashell as reinforcement, material using grey relational analysis, Engineering Science and Technology, an international Journal,

Abhulimen E. A. and Orumwense F. F. O. (2017), characterization and development of asbestos-free brake pad, using snail shell and rubber seed husk, African Journal of Engineering Research, 5(2), 24-34.

Onyeneke, F.N., Anaele, J.U., Ugwuegbu, C.C. (2014), Production of Motor Vehicle Brake Pad Using Local Materials (Periwinkle and Coconut Shell), International Journal of Engineering and Science,3(9), 17-24

Atmika, I.K.A., Subagia, IDGA, Surata, I.W., Sutantra, I.N. (2019), Development of Environmentally Friendly Brake Lining Material, E3S Web of Conference, 120,




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