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Characterization of soy protein–celery composite paper sheet: Rheological behavior, mechanical, and heat‐sealing properties
Author(s) -
Shao Cai,
Yang Chuanmin,
Wang Xinyu,
Luo Peng
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36902
Subject(s) - soy protein , rheology , materials science , composite material , composite number , seal (emblem) , food science , chemistry , art , visual arts
The rheological properties of soy protein spray‐coating dispersions were investigated as a function of concentration (10–13.75%) and temperature (30–60°C). The dispersions showed a shear‐thinning behavior. With the increase in concentration, the consistency coefficient (κ H ) values increased. An increasing in temperature led to an increasing flow behavior index ( n H ) and a decreasing κ H . However, Cox–Merz rule was not applicable to the coating dispersions. Soy protein–celery composite paper sheet was prepared by spraying soy protein on the surface of the celery paper sheet. The cohesion of soy protein and celery fiber resulted in sealing of celery paper. The seal strength increased with the increase in soy protein concentration. The seal strength increased from 114.850 to 160.560 N/m, when the soy protein concentration increased from 10 to 13.75%. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012