Reinforced Materials Based on Chitosan, TiO2 and Ag Composites

Polymers

Khairul Anuar Mat Amin¹ 

[1] Soft Materials Group, School of Chemistry, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia;

关键词: chitosan;    Ag;    TiO₂;    nanoparticles;    mechanical reinforcement;    composite;   

DOI  :  10.3390/polym4010590

来源: mdpi

【 摘 要 】

This study investigates the mechanical reinforcement of chitosan with TiO₂ and Ag nanoparticles, as well as their water vapour transmission rates and water resistance behaviour. The mechanical properties of chitosan were improved by addition of TiO₂ or Ag, with significant increases in Young’s modulus (from 25 MPa to ~300 MPa), tensile strength (from 6 MPa to 18–35 MPa) and toughness (from 1.3 J g⁻¹ to 7–8 J g⁻¹). The water vapour transmission rates (368–413 g m⁻² d⁻¹) were found to be similar for both materials. Inclusion of Ag reduced the water resistance (from 823% to 1,000%), while inclusion of TiO₂ yielded significant improvement in water resistance (from 823% to 100%).

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.