Abstract
This study combines experimental and numerical approaches to investigate the microstructure and mechanical behaviour of non-miscible plasticised starch/zein blends. The concept of Representative Elementary Size (RES) is used to rank the effect of five different plasticisers (cholinium acetate, glycerol, butyl methyl imidazolium chloride, glycerol-choline chloride, urea-choline chloride) inducing microstructural and mechanical changes in the blends. Microstructural and mechanical RESs are derived from microscopy image analysis and Finite Element Modelling of elasticity behaviour of studied blends. Compared to the usual consideration of ultimate mechanical properties (elongation and stress at break), the RES-based approach allows detecting the presence of perfect or imperfect interface between starch and zein particles depending on the nature of plasticiser.
Original language | English (US) |
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Pages (from-to) | 120-129 |
Number of pages | 10 |
Journal | Carbohydrate Polymers |
Volume | 172 |
DOIs | |
State | Published - Sep 15 2017 |
Keywords
- Finite element modelling
- Ionic liquid
- Mechanical properties
- Microstructure
- Starch/zein blends
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry