Effect of Alumina Silicate (MMT K10) Nanoclay on Adhesion and Barrier Properties of Cornstarch-Based Bioadhesive.

Autor: Vishnuvarthanan, M., Al Shahidah, M. Fathima, Gobika, N. R., Priyadharshini, B., Rasika, B.
Zdroj: SILICON (1876990X); Dec2021, Vol. 13 Issue 12, p4315-4322, 8p
Abstrakt: The objective of this research work was to prepare and characterize the environmentally friendly paperboard bioadhesive using corn starch and alumina silicate (MMT K10) nanoclay and examined the effect of MMT K10 on adhesive and barrier properties. The adhesive structure and barrier properties were analysed by Fourier transform infrared spectroscopy, oxygen and water vapour transmission rate. The experimental results showed that, as compared with the pure corn starch, the 5 wt% of MMT K10 nanoclay incorporated corn starch adhesive exhibited the better viscosity of 25.6 Pa.S, higher solid content of 69.78% and longer storage period of 82 days. It also had high adhesive, shear, and peel strength of 132 N/mm2, 12.9 MPa, and 84 N/m. It also enhanced the barrier properties of the adhesives. The 5 wt% of MMT K10 corn starch adhesive showed the lowest oxygen and water vapour transmission rate of 2081.58 cc/m2.day.atm and 12.85 g/m2/day. The characterization showed that the enhanced performance of the corn starch with MMT K10 was because of the braced structure of the molecules. The addition of MMT K10 nanoclay to corn starch can improve its overall performance and proved the value as replaceable for conventional petrochemical adhesives. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index