Synthesis and characterization of polyurethane diol poly caprolactonenanocomposites

Abstract

Polymers are used in various fields of medicine, engineering, food packing and other life related value. Polycaprolactone (PCL) is one of the important commercialized plastics, and has received much attention in polymer industry because of its high flexibility, biodegradability and its hydrophobic nature. But, disadvantages such as high costs, low melting temperature and reduced mechanical properties restrict the use of PCL. Therefore PCL is blended with other polymers or reinforcing materials, which transform its blend for various commercial applications. Polyurethane (PU) is a synthetic biodegradable polymer obtained from the condensation of isocyanates with polyalcohols and has good physical, mechanical and biocompatibility characteristics. PUs are used in wide variety of products like domestic, automotive, industrial and also used widely in biomedical applications such as aortic grafts, dialysis membranes, heart valves, intra-aortic balloons, in dwelling catheters and mammary implants. Polyurethane diol (PUD) belongs to the family of polyurethanes. newline