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E u r o S c i C o n C o n f e r e n c e o n

Chemistry

2018

Chemistry 2018

Journal of Organic & Inorganic Chemistry

ISSN 2472-1123

F e b r u a r y 1 9 - 2 0 , 2 0 1 8

P a r i s , F r a n c e

Page 69

N

anocrystals (NCchit) and nanofibers (NFchit) extracted

from chitin are considered as nanomaterials of great

innovative potential and promising biomaterial for academic

and industrial fields. The research related to their production

and application is still new. In the other hand, in recent years,

many research programs have focused on developing more

and more bio-degradable packaging of natural polymers.

Among them, those based on polysaccharide polymers

such as hydroxypropylmethylcellulose (HPMC).This study is

the first to investigate the compatibility and reinforcement

effect of nano-size chitin fillers (NCchit and NFchit) on

Caracterization

of HPMC films

reinforced with chitin

nanomaterials as

promising composites

for eco-frendly

applications

FatmaLarbi

1,2

, Ahme Hamou

1

,

Naceur Belgacem

2

, Julien

Bras

2,3

1

Department of Chemistry, University of Oran

1

Ahmed Ben Bella, El M’naouar, 31000 Oran,

Algeria

2

Univ. Grenoble Alpes, CNRS, LGP2, F-38000

Grenoble, France

3

IUF, F-75000 Paris, France

Hydroxypropyl methyl cellulose (HPMC). NCchit aqueous

dispersions were prepared by acid hydrolysis of commercial

shrimp shell α-chitin while NFchit were prepared by mechanical

defibrillation using closed loop grinding. The average widths

and lengths of NFchit were (8.7 ± 3.17) nm (673.9 ± 263.3) nm

respectively while for NCchit were (9.7 ± 3.2) nm and (243.5±

55.1) nm. Composites of HPMC with different loadings of

NCchit or NFchit were prepared by casting technique, using

water as solvent. The effect of morphology and size of each

nanomaterial on morphology, transparency, mechanical, thermal

and barrier properties of the resulting nanocomposites were

investigated using various techniques. The obtained results

revealed the positive effect of both nanomaterials on HPMC by

enhancing its mechanical properties. The nanocomposite films

exhibited better oxygen and water barrier with slight decrease in

transparency than control HPMC film. Overall, chitin NCchit offer

superior reinforcing performance than chitin NFchit.

fatmalarbi10@gmail.com

J Org Inorg Chem 2018, Volume: 4

DOI: 10.21767/2472-1123-C1-003