Investigation on dynamic mechanical analysis of bio-active coating materials coated on Teflon, PVC and Nylon polymers

Abstract

Selection of Bio-active coating materials plays a vital role in order to improve the life span and mechanical properties of Bio-material implants. Bio-active coating is extensively coated on the Bio-polymers such as Nylon, Polytetrafluoroethyene (Teflon) and polyvinyl chloride (PVC) to form a thin film barrier where Hydroxyapatite (HAP) is used as Bio-coating material, which is very expensive and poor in viscoelastic behavior and damping co-efficient. The objective of this paper is to select the alternative Bio-coating material by using Aluminum Oxide, Egg and Sea Shell which are easily available in nature and economical. Selected Bio-active materials are used to protect the surface area of the Bio-implant. Plasma spray technology is used to coat the Teflon, Nylon and PVC with selected coating materials. Dynamic Mechanical Analysis (DMA) test conducted on both coated and uncoated samples to examine the viscoelastic behavior and damping co-efficient of samples where Teflon, Nylon and PVC coated with Al2O3, Egg Shell and Sea Shell showed better results when compared to Hydroxyapatite (HAP).