PVAPolysaccharides Blended Films : Mechanical Properties

Joint Authors

Silva, Fábio E. F.
Di-Medeiros, Maria Carolina B.
Batista, Karla A.
Fernandes, Kátia Flávia

Source

Journal of Materials

Issue

Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2013-04-04

Country of Publication

Egypt

No. of Pages

6

Main Subjects

Materials Science , Minerals
Civil Engineering

Abstract EN

Blends of polyvinyl alcohol (PVA) and angico gum (AG) and/or cashew gum (CG) were used to produce films by casting method.

Morphological and mechanical properties of these films were studied and compared to the properties of a commercial collagen membrane of bovine origin (MBO).

The films presented thickness varying from 70 to 140 μm (PVA/AG) and 140 to 200 μm (PVA/CG).

Macroscopic analysis showed that a PVA/CG film was very similar to MBO regarding the color and transparency.

The higher values of tensile strength (TS) and elastic modulus (EM) were observed in the PVA/AGHCl film.

On the other hand, PVA/CG and PVA/CG-AG presented the highest value of percentage of elongation (E%).

Pearson’s Correlation Analysis revealed a positive correlation (r=0.83) between TS and EM and a negative correlation (r=-0.79) between E% and EM.

The PVA/CG film presented mechanical properties very similar to MBO, with the advantage of a higher E% (11.96) than MBO (2.94).

The properties of the PVA blended films depended on the polysaccharide added in the blend, as well as the acid used as a catalyst.

However, all produced films presented interesting mechanical characteristics which enables several biotechnological applications.

American Psychological Association (APA)

Silva, Fábio E. F.& Di-Medeiros, Maria Carolina B.& Batista, Karla A.& Fernandes, Kátia Flávia. 2013. PVAPolysaccharides Blended Films : Mechanical Properties. Journal of Materials،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-470179

Modern Language Association (MLA)

Silva, Fábio E. F.…[et al.]. PVAPolysaccharides Blended Films : Mechanical Properties. Journal of Materials No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-470179

American Medical Association (AMA)

Silva, Fábio E. F.& Di-Medeiros, Maria Carolina B.& Batista, Karla A.& Fernandes, Kátia Flávia. PVAPolysaccharides Blended Films : Mechanical Properties. Journal of Materials. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-470179

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-470179