Title :
PI-clay nanocomposites: Synthesis and characterization
Author :
Alam, Shaikh Mominul
Author_Institution :
Coll. of Textile Technol., Dhaka
Abstract :
A series of Polyimide (PI)-Organically modified clay nanocomposites were made to enhance tensile modulus, thermal stability of rigid PI. PI was made from 3´, 4, 4´.-biphenyltetracarboxylic dianhydride (BPDA), p-phenylediamine (PDA). Montmorillonite, one type of layered clay, was treated by n hexadecyltrimethylammonium bromide salt. XRD indicated that OMMT layers were exfoliated and dispersed into PI-film. Tensile measurements indicated that small amount of OMMT (up to 3%) increased tensile modulus nicely. The glass transition temperatures are higher than pristine PI. TGA showed that nanocomposites have higher decomposition temperatures in comparison with the original PI.
Keywords :
elastic moduli; glass transition; nanocomposites; nanofabrication; organic-inorganic hybrid materials; polymers; pyrolysis; tensile strength; thermal stability; transparency; 3´, 4, 4´.-biphenyltetracarboxylic dianhydride; XRD; decomposition; glass transition temperatures; loss modulus; montmorillonite; nanocomposites; organically modified clay; p-phenylediamine; polyimide; storage modulus; tensile modulus; thermal stability; transparency; viscoelastic properties; Heating; Inorganic materials; Mechanical factors; Nanocomposites; Personal digital assistants; Polymers; Temperature; Thermal decomposition; Thermal stability; X-ray scattering;
Conference_Titel :
Electrical and Computer Engineering, 2008. ICECE 2008. International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4244-2014-8
Electronic_ISBN :
978-1-4244-2015-5
DOI :
10.1109/ICECE.2008.4769215
