Applied Chemical Engineering (2023) Volume 6 Issue 3 doi: 10.24294/ace.v6i3.2367 1 Original Research Article Mechanical properties of pyrolysis carbon black in rubber compound application Teerapat Anupabphan 1,2,* , Noppakun Kaewdam 1 , Bancha Seataew 1 , Torlab Nangnoi 1 , Napan Narischat 3 , Chonlakarn Wongkhorsub 1,2 1 Department of Power Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand 2 Research Centre for Combustion Technology and Alternative Energy (CTAE), Science and Technology Research Institute, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand 3 Environment Resources Management (ERM), Bangkok 10120, Thailand * Corresponding author: Teerapat Anupabphan, teerapat.anupabphan@gmail.com ABSTRACT Waste tire pyrolysis is a thermal decomposition process that converts waste tires into liquid fuel which also produce by product material such as producer gas, pyrolysis carbon black (CBp), and steel wire. Nowadays, carbon black produced by pyrolysis is being employed as a low-grade carbon base fuel. The technical feasibility of using CBp as a substitute for commercial carbon black N330 in styrene-butadiene rubber (SBR) was investigated in the study. The researcher also looked at how the composition ratio of CBp and N330 affected the mechanical characteristics of rubber in comparison to the outcomes of pure carbon black N330. It was discovered that the low composition ratio of 20% CBp and 80% N330 (R-2) had comparable Mooney viscosity to that of N330 carbon black, as well as the highest torque (MH) and torque increment (ΔM) values, but increased CBp content led to increased rubber viscosity and decreased cure time due to sulfur residues CBp was inferior to N330 in its effect on reinforcement. With an increase in CBp content, the tensile strength, shear strength, and elongation at break of SBR vulcanizates decreased considerably, while the hardness increased. Consequently, the CBp value evaluated for hardness applications provides significant manufacturing cost savings. Keywords: pyrolysis carbon black; waste tires; styrene-butadiene rubber; mechanical properties; N330 1. Introduction The BCG Economy is an economic model for sustainable development that focuses on systems that are planned and designed to use resources and energy efficiently. It has infiltrated the modern automotive industry and focuses on systems that are planned and designed to use resources and energy efficiently. It is in line with at least five of the United Nations Sustainable Development Goals (SDGs), such as sustainable production and consumption, climate change conservation, diversity cooperation for sustainable development, and reducing inequality. It is also in line with the philosophy of sufficiency economy, which is an important principle in Thai economic and social development. Pyrolysis is the process of heating hydrocarbon material at a temperature of 450–700 degrees Celsius in an oxygen-free condition in order to reform hydrocarbon fuel substances. It has many advantages such as low cost, high efficiency, and little environmental pollution. Focusing on tyre pyrolysis process, the products consist of gas and liquid products such as hydrogen gas, hydrocarbon gas (methane, ethane, ARTICLE INFO Received: 5 July 2023 Accepted: 9 August 2023 Available online: 28 September 2023 COPYRIGHT Copyright © 2023 by author(s). Applied Chemical Engineering is published by EnPress Publisher, LLC. This work is licensed under the Creative Commons Attribution- NonCommercial 4.0 International License (CC BY-NC 4.0). https://creativecommons.org/licenses/by- nc/4.0/