Advanced Functional Polymeric Materials from phenolic lipid (cardanol) for Protective Applications

Renewable feedstock, such as cashew nut shell liquid (cardanol, Col)- a phenolic lipid, as a starting precursor, has opened up a new route for creating advanced functional nanostructured materials derived from biological sources to protect mild steel towards bacteria and corrosion. In the current study, advanced available nanostructured materials like metal-organic framework (MOF) are readily synthesised in situ via the green chemistry route using "Col" as the raw material and endogenous divalent metal ions as the metal nodes to create hydrophobic films/coatings that were chemically and mechanically stable along with antibacterial and anticorrosive. The production of the synthesised materials was elucidated using standard spectral approaches. ATR-FTIR method was used to study the development of coating/thin films. Thermal experiments (TGA/DTG) showed that adding metal to virgin polymer improved thermal stability and flame resistance. SEM-EDX and TEM morphological investigation showed different patterns and shapes with the metals, whereas XRD patterns showed the behaviour of the synthesised material to be amorphous to semi-crystalline. Standard methods were applied to check the antibacterial (against gram-positive and gram-negative bacteria) and anticorrosive properties. Fabricating nanostructure advanced coatings/films with antibacterial and corrosion-inhibiting properties presents exciting potential for microbiologically influenced corrosion inhibition applications.