Can I read Intermolecular Interactions Between Starch and Polyvinyl Alcohol for Improving Mechanical Properties of Starch-based Straws on EtoBox?

Intermolecular Interactions Between Starch and Polyvinyl Alcohol for Improving Mechanical Properties of Starch-based Straws by Xinyang Wei; Haiteng Tao; Congping Tan; Jixun Xie; Fang Yuan; Li Guo; Bo Cui; Feixue Zou; Wei Gao; Pengfei Liu; Lu Lu is a Materials Science article available to read on EtoBox.

What is Intermolecular Interactions Between Starch and Polyvinyl Alcohol for Improving Mechanical Properties of Starch-based Straws about?

Starch/polyvinyl alcohol (PVA) degradable straws with different PVA contents were prepared by the twin-screw extrusion method. The results showed that the starch/PVA straws with 40 % PVA (PS4) had the highest dispersion uniformity of starch and PVA to achieve the best compatibility, and the compatibility size was below the micron level. Molecular interactions between starch and 40 % polyvinyl alcohol reached the highest due to the highest strength of hydrogen bonds, hence resulting in the highest texture densities. Consequently, the largest compatibility and molecular interactions significantly improved the mechanical properties and water resistance of PS4. Compared to the starch/PVA straw with 0 % PVA (PS0), swelling volume of PS4 decreased by 45.5 % (4 °C) and 65.2 % (70 °C), respectively. After soaking, the diameter strength increased by 540.1 % (4 °C, 1 h) and 638.7 % (70 °C, 15 min), respectively. Water absorption decreased by 45.3 % (4 °C, 30 min) and 27.6 % (70 °C, 30 min).

Who reads Intermolecular Interactions Between Starch and Polyvinyl Alcohol for Improving Mechanical Properties of Starch-based Straws?

Author

Xinyang Wei; Haiteng Tao; Congping Tan; Jixun Xie; Fang Yuan; Li Guo; Bo Cui; Feixue Zou; Wei Gao; Pengfei Liu; Lu Lu

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)