23 / 25
Page 47
Notes:
allied
academies
Journal of Materials Science and Nanotechnology | Volume: 3
March 20-21, 2019 | London, UK
Materials Science and Materials Chemistry
2
nd
International Conference on
N
anocellulose is a widely studied material which has been
used to reinforce different materials and polymers such
as polyvinyl alcohol (PVA). Cellulose has many amorphous
zones which were useful for functionalization; therefore,
reinforcing polymer films with this material will lead to better
mechanical properties in them. The objective of the present
work was to obtain and functionalize cellulose nanoparticles
to incorporate them into PVA films to improve mechanical
properties and for a possible use in the food industry. There
were 4 studied samples, PVA, PVA-R (PVA/Congo red), PVA-C
(PVA/cellulose) and PVA-CR (PVA/cellulose/Congo red). Films
containing Congo red and PVA had very good mechanical
properties giving the Congo red a cross linking property that
has not been studied yet and that was corroborated with
other studies such as FTIR and XRD. Also, the addition of
different components gives a better structure, which can be
observed in the roughness parameters obtained by AFM (Ra
between 1.86 and 17.2). The films showed a change in color
when adding drops of lactic acid, suggesting that the Congo
red is not covalently linked in the PVA matrix and it is not
losing the property as pH indicator.
Speaker Biography
Claudia Ponce has completed her PhD at the age of 29 at Instituto Politécnico Nacional,
Mexico City. She is a professor at Mexican Republic University and co-works with the
National Institute of Petroleum. She has a lot of experience on Transmission Electron
Microscopy (TEM) on biological materials.
e:
ericka1a@gmail.comClaudia Ponce
Mexican Institute of Petroleum, Mexico
Polyvinyl alcohol films reinforced with functionalized cellulose nanoparticles