In order to find out the shift of ductile nature of acrylonitrile-butadiene-styrene (ABS) polymer to brittle nature while maleic anhydride (MA) grafting, the iodine value of different MA-grafted ABS (MA-g-ABS) sampled has been determined. The iodine value of thermoplastic polymer is found by Wijs method with slight modification to overcome the poor solubility of thermoplastics in tetrachloromethane. Different samples with varying MA content were prepared using internal mixer. All the specimens were characterized by attenuated total reflectance IR spectroscopy and X-ray diffraction analysis. The iodine value measurements revealed that grafting and cross-linking evidently reduced the unsaturation in ABS polymer matrix. The grafting of MA causes the decrease in impact strength, flexural modulus, and a significant increase in crystallinity, tensile strength, yield point, and flexural strength, whereas thermal stability remains intact. Field emission scanning electron microscope images showed noticeable difference in broken surface texture between ABS and grafted samples.

This work reports the fabrication of an antibacterial phenol formaldehyde (PF)/silver (Ag) nanocomposite coated polyester fabric material for industrial coating applications. Spherical Ag nanoparticles (NPs), with an average particle size of 20 nm were uniformly distributed in the PF resole resin. The polymer nanocomposites with different percentages of Ag NPs (0.2 %, 0.4 %, and 0.6 %) have been coated on polyester fabric by a hand layup procedure. The fabric samples were characterized by scanning electron microscopy (SEM), energy dispersive X‐ray analysis (EDAX) and X‐ray diffraction analysis. The thermal properties of samples have been investigated by differential scanning calorimetry and thermo‐ gravimetric analysis. The effect of Ag NPs on the adhesion features of resole resin coated polyester fabric was evaluated by the peel strength measurement. The optimized composite showed excellent antibacterial properties against Staphylococcus aureus and Escherichia coli bacteria. All the resole PF/Ag nanocomposite coated polyester fabrics are biocompatible. It has been proposed for a variety of applications in the fields of apparel, architecture and construction, insulation, automotive and chemical processing.