Study of Nanocomposites of Polyamide 6.6/National Bentonite Clay

Abstract:

Polymers nanocomposites are a class of materials where inorganic substances with nanometrics dimensions are modified and used as dispersed loads in polymers matrices. In this work, polyamide 6.6 was chosen because of its excellent chemical, mechanical and thermal properties. The bentonite clay was treated with quaternary ammonium salt (Cetremide®) to make it organophilic and to improve the interaction with the polymer matrix. It was verified by the Torque Rheometry that the system with salt presented a bigger torque in relation to the torque of the system with untreated clay and pure polyamide 6.6. The nanocomposites presented an exfoliated and partially exfoliated structure, as evidenced by XRD. By DSC, it was observed that the treated clay increases the decomposition temperature of the nanocomposite.

• Periodical: Materials Science Forum (Volumes 727-728)
• Pages: 894-898
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.727-728.894
• Online since: August 2012
• Authors: Luana Rodrigues Kojuch, Keila Machado Medeiros, Dayanne Diniz de Souza Morais, Edcleide Maria Araújo, Hélio de Lucena Lira
• Keywords: Bentonite Clay, Characterization, Nanocomposite, Organoclay, Polyamide 6.6

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