Abstracts Book - IMRC 2018

• SB1-P010
PREPARATION AND CHARACTERIZATION OF Poly(Vinyl
Acetate),PVAc COMPOSITES WITH NANOCELLULOSE OBTAINED
FROM DIFFERENT NATURAL RENEWABLE SOURCES
Rosa Maria Jimenez 1 , Emma Rebeca Macías Balleza 1 , Thais Helena Sydenstsahagun 2 , Salvador
García Enriquez 3 , Harrison Corrêa 2 , Talita Sylapak Franco 4,5 , Jaqueline Mara Silva 6 , Aline
Caldonazo 6 , Maite Renteria Urquiza 4
1 Universidad de Guadalajara, Chemical Engineering Department, Mexico. 2 Universidade
Federal do Paraná, Mechanics Department, Brazil. 3 Universidad de Guadalajara, Wood,
Cellulosic and Paper Department, Mexico. 4 Universidad de Guadalajara, Chemical Department,
Mexico. 5 Universidade Federal do Paraná, Laboratório LCNANO - SISNANO, Brazil.
6 Universidade Federal do Paraná, Programa de Mestrado em Engenharia e Ciência dos
Materiais, Brazil.
Currently the use of nanocellulose is a novel subject in different areas of
research, being the most studied in the development of biomaterials for its
different applications, such as in the production of polymer composites, in the
formation of membranes for different applications in the regenerative
engineering of tissues, and in the production of hydrogels with differentiated
properties, among others. Studies have identified many advantages in the use
of natural fibers, including low density, low cost, biodegradability and low
abrasiveness. Associated to that, the use of natural resources of renewable
sources contribute with the planet sustainability and minimize the
environmental impact caused by the use of fossil natural resources. Recent
researches discuss the advantages of the use of cellulose nanofibers and
show that the cellulose obtained in nanometric fractions has many advantages
such as ease in the process of preparation, different characteristics in relation
to the natural substrate of origin, mechanical properties
comparable to inorganic and carbon nanofibers, high thermal properties and a
more effective interaction when used as reinforcements in composites due to
their greater surface area.The aim of this work was to prepare and characterize
nanocellulose of (Cortaderia selloana) and (Desmoncus polycanthos Mart.), two
not well known alternative lignocellulosic materials from Brazil. The chemical
characterization of the fibers allowed the quantification of water content, ashes,
solubles, extratives and lignin. Scanning electronic miscroscopy (MEV) was used
to study the morphology. The presence of organic groups in the fibers was
determined by FTIR. The Kappa number was determined to quantify the lignin
content in the fibers after the treatments and before the nanocellulose
preparation in a mechanical process. FTIR was used to identify the chemical