Acoustical Properties of (Chitin/nano-TiO2) Bio ‎Polymer Composite Gel

Abstract

Ultrasonic (U/S) properties of (Chitin (Ch)/TiO₂) nano-composite gel have been studied. The concentrations of Chitin polymer that dissolved in (500 mL) from N-N dimethyl- acetamide and (5% LiCl) at RT. for (0.5 hrs.) were (0.1, 0.2,…, 0.8 g/mL)% respectively, then TiO₂ added as (0.25 and 0.5) g for each concentrates of polymer. All U/S measurements have been made at (f =25 kHz) frequency.  

The results show that all U/S properties enhanced after the addition of TiO₂, and this property used in U/S devices