Introduction_to_Nanocomposites_pptx.pptx

Introduction_to_Nanocomposites_pptx.pptx

1. Nanocomposites: Structure, Types, and Synthesis Methods By Nguyễn Thảo

2. Definition and Concept • Nanocomposites are multiphase materials where at least one phase has nanometer-scale dimensions. • Combine the properties of the matrix (polymer, metal, or ceramic) and the nanofiller. • Exhibit superior mechanical, thermal, electrical, and barrier properties.

3. Classification of Nanocomposites • Polymer-based nanocomposites: lightweight, flexible, widely used. • Metal-based nanocomposites: high strength, conductivity, corrosion resistance. • Ceramic-based nanocomposites: thermal stability, hardness, wear resistance. • Hybrid nanocomposites: combine multiple matrices or fillers.

4. Synthesis Methods • In-situ polymerization: nanofillers dispersed during polymer formation. • Sol–gel process: chemical synthesis from molecular precursors. • Mechanical mixing or melt blending: physical dispersion methods. • Chemical vapor deposition (CVD): for coating and thin film nanocomposites.

5. Properties of Nanocomposites • Enhanced mechanical strength and toughness. • Improved thermal and electrical conductivity. • Better barrier properties (against gases, moisture, chemicals). • Lightweight with multifunctional characteristics.

6. Applications • Aerospace and automotive materials. • Electronics and sensors. • Coatings and packaging materials. • Biomedical and environmental engineering.