Rye Flour and Cellulose Reinforced Starch Biocomposite: A Green Approach to Improve Water Vapor Permeability and Mechanical Properties. (6th April 2020)

• Record Type: Journal Article
• Authors: Beigmohammadi, Faranak; Barzoki, Zahra Mahdizadeh; Shabanian, Meisam
• Is Part Of: Stärke. Volume 72:Number 5/6(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-04-06
• Subjects: cellulose -- properties -- rye flour -- starch biocomposites; Starch -- Periodicals; 572.566
• DOI: 10.1002/star.201900169
• Languages: English
• ISSNs: 0038-9056

Abstract

Abstract: Research on starch‐based biopolymers has increased because of their potential as environmentally friendly biodegradable substitutes to typical plastics. This study investigates the effect of rye flour as a main reinforcement agent as well as cellulose and citric acid in biocomposite starches on improving their water vapor permeability (WPF) and mechanical properties. The optimum point of the starch biocomposites obtained by Design of Experiments software 7.1.5 is run with 10% cellulose, and 10% rye flour with a WPF value equal to 8.7E‐10 g s −1 m −1 Pa −1, water uptake (WU) of 3.42%, and good mechanical properties. Validation of the optimum point does not show significant difference between the predicted and the actual values. There is some strong hydrogen and physical bonding in the optimized starch biocomposite that changes the intensity of the absorption bands and improves the mechanical properties. Abstract : A new starch biocomposite is prepared by adding rye flour, cellulose, and citric acid to starch. Characterization of the biocomposite show uniform distribution of the filler in the matrix that can perform a major role in improving the properties of the biocomposite. The models obtained by statistical methods show that rye flour and cellulose are more effective biocomposite reinforcement agents than citric acid.