Properties and ageing behaviour of pea starch films as affected by blend with poly(vinyl alcohol)
作者： A Cano , ELENA Fortunati , M Cháfer , José María Kenny , A Chiralt
DOI: 10.1016/J.FOODHYD.2015.01.008
关键词:
摘要: Abstract Pea starch (S) and poly(vinyl alcohol) (PVA) blends with different ratios were produced in order to elucidate the possible advantages of blend films overcome common drawbacks films. Starch, (S:PVA 2:1, 1:1 1:2) obtained by casting microstructure thermal behaviour characterized. Moreover, barrier, mechanical optical properties evaluated after 1 5 storage weeks at 25 °C 53% relative humidity study effect on ageing process starch. The incorporation PVA into pea implied formation interpenetrated networks both incompatible polymers partial solubilisation. S-PVA much more extensible stable during storage, improved water barrier reduced sorption capacity especially when S:PVA ratio 1:2. Starch-poly(vinyl are environmentally friendly, low cost materials, good functional properties.
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