A novel method for the preparation of starch films and coatings

被引：89

作者：

Pareta, R

Edirisinghe, MJ

机构：

[1] UCL, Dept Mech Engn, London WC1E 7JE, England

[2] Queen Mary Univ London, Dept Math, London E1 4NS, England

来源：

CARBOHYDRATE POLYMERS | 2006年 / 63卷 / 03期

关键词：

starch; electrohydrodynamic atomization; films; coatings; SEM;

D O I：

10.1016/j.carbpol.2005.09.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work, maize starch was used to demonstrate a novel method which enables the preparation of starch films and coatings with good thickness control. 5% starch in de-ionized water (w/v) was gelatinized at 120 degrees C for 30 min, subsequently small quantities of dispersant and ethanol were added and subjected to ultrasonic disruption to make a stable modified starch Solution. Electrohydrodynamic behavior of this Solution was studied and optimum conditions for film preparation were determined. The solution was then electrosprayed in the cone-jet mode and films were collected on a rotating plate. Film thickness was investigated by electron microscopy. Films of varying thickness were prepared by varying the electrospraying time and their characteristics are compared with solvent-cast films. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：425 / 431

页数：7

共 41 条

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