Baniasadi (2024) Structure-property correlations study in biochar-enhanced polyamide composites for sustainable materials development. Composites Part B: Engineering. https://doi.org/10.1016/j.compositesb.2024.111809

Recent research has explored the potential of integrating biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More into polyamide 12 (PA12) composites to develop sustainable materials with improved properties. Biochar, derived from organic waste through pyrolysisPyrolysis is a thermochemical process that converts waste biomass into bio-char, bio-oil, and pyro-gas. It offers significant advantages in waste valorization, turning low-value materials into economically valuable resources. Its versatility allows for tailored products based on operational conditions, presenting itself as a cost-effective and efficient More, is a renewable resource that offers both environmental and mechanical benefits when combined with polymers like PA12.

The study synthesized a range of PA12/biochar composites via in situ polymerization, incorporating varying biochar concentrations. Key findings revealed that adding biochar improved the tensile strength and modulus of PA12, with significant increases observed at higher biochar loadings. Specifically, a 50% biochar composite demonstrated a tensile strength increase from 38 MPa to 54 MPa, and a modulus increase from 745 MPa to 2055 MPa. This enhancement is attributed to the uniform dispersion and strong interfacial bonding between biochar and PA12, facilitated by the polymerization process.

Additionally, the inclusion of biochar increased the crystallinity of the composite, suggesting that biochar acts as a nucleating agent. This contributed to improved mechanical properties without significantly altering the melting and crystallization temperatures of PA12.

A life cycle assessment (LCA) highlighted the environmental advantages of using biochar in PA12 composites. The study found that incorporating biochar could reduce the carbon footprint of the material by up to 1.83 kg CO₂ equivalents per kilogram, depending on the production scenario.

These findings underscore the potential of biochar-enhanced PA12 composites as a viable, sustainable alternative for various industrial applications, combining enhanced performance with environmental benefits.