Structure of starch-bentonite gels


Besun N., Peker S., Kokturk U., Yilmaz H.

COLLOID AND POLYMER SCIENCE, vol.275, no.4, pp.378-389, 1997 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 275 Issue: 4
  • Publication Date: 1997
  • Doi Number: 10.1007/s003960050095
  • Journal Name: COLLOID AND POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.378-389
  • Keywords: mixed gels, starch, bentonite, band-type structures, polymer adsorption
  • Dokuz Eylül University Affiliated: Yes

Abstract

Mixed gels of starch and bentonite are investigated in the interval 0.056-0.089 of total solids/water ratio and 0-100% starch in the solids. The bentonite was a sodium calcium bentonite with a Na/Ca ratio of 1.76. In water it forms gels consisting of a network of band-type structures. Starch forms gels through hydrogen bonds between granules and/or amylose and amylopectin present on the external surfaces of granules and/or in fully stretched form.