• Packaging Industry: Polymers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET) are used in food packaging, films, and containers due to their high barrier properties, chemical resistance, and mechanical durability . • Automotive & Aerospace: Lightweight polymers like polyamides (PA), polyether ether ketone (PEEK), and polycarbonate (PC) are employed in fuel tanks, interior components, and structural parts to improve fuel efficiency and mechanical performance . • Biomedical Applications: Biodegradable and biocompatible polymers such as polylactic acid (PLA) and polycaprolactone (PCL) are used in drug delivery systems, surgical sutures, and implants, supporting advancements in regenerative medicine and bioresorbable devices .