Improvement of water barrier properties of starch films by lipid nanolamination

2016 ◽  
Vol 7 ◽  
pp. 41-46 ◽  
Author(s):  
Aníbal M. Slavutsky ◽  
María A. Bertuzzi
Keyword(s):  
Barrier Properties ◽  
Water Barrier ◽  
Starch Films

scholarly journals Morphology, Mechanical, and Water Barrier Properties of Carboxymethyl Rice Starch Films: Sodium Hydroxide Effect

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 331
Author(s):  
Pornchai Rachtanapun ◽  
Sarinthip Thanakkasaranee ◽  
Rafael A. Auras ◽  
Nareekan Chaiwong ◽  
Kittisak Jantanasakulwong ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Sodium Hydroxide ◽  
Water Solubility ◽  
Barrier Properties ◽  
Rice Starch ◽  
Vapor Permeability ◽  
Scanning Calorimetry ◽  
Water Contact ◽  
Water Barrier ◽  
Starch Films

Carboxymethyl rice starch films were prepared from carboxymethyl rice starch (CMSr) treated with sodium hydroxide (NaOH) at 10–50% w/v. The objective of this research was to determine the effect of NaOH concentrations on morphology, mechanical properties, and water barrier properties of the CMSr films. The degree of substitution (DS) and morphology of native rice starch and CMSr powders were examined. Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and differential scanning calorimetry (DSC) were used to investigate the chemical structure, crystallinity, and thermal properties of the CMSr films. As the NaOH concentrations increased, the DS of CMSr powders increased, which affected the morphology of CMSr powders; a polyhedral shape of the native rice starch was deformed. In addition, the increase in NaOH concentrations of the synthesis of CMSr resulted in an increase in water solubility, elongation at break, and water vapor permeability (WVP) of CMSr films. On the other hand, the water contact angle, melting temperature, and the tensile strength of the CMSr films decreased with increasing NaOH concentrations. However, the tensile strength of the CMSr films was relatively low. Therefore, such a property needs to be improved and the application of the developed films should be investigated in the future work.

Sugar palm ( Arenga pinnata [ Wurmb .] Merr ) starch films containing sugar palm nanofibrillated cellulose as reinforcement: Water barrier properties

2019 ◽  
Vol 41 (2) ◽  
pp. 459-467 ◽  
Author(s):  
R. A. Ilyas ◽  
S. M. Sapuan ◽  
A. Atiqah ◽  
Rushdan Ibrahim ◽  
Hairul Abral ◽  
...  
Keyword(s):  
Barrier Properties ◽  
Nanofibrillated Cellulose ◽  
Water Barrier ◽  
Starch Films

Novel Whey Protein Isolate/Polyvinyl Biocomposite for Packaging: Improvement of Mechanical and Water Barrier Properties by Incorporation of Nano-silica

2021 ◽  
Author(s):  
Bruna Rage Baldone Lara ◽  
Paulo Sérgio de Andrade ◽  
Mario Guimarães Junior ◽  
Marali Vilela Dias ◽  
Lizzy Ayra Pereira Alcântara
Keyword(s):  
Whey Protein ◽  
Barrier Properties ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Nano Silica ◽  
Water Barrier

Multifunctional hydrolyzed EVA membranes with tunable microstructure and water barrier properties

2015 ◽  
Vol 480 ◽  
pp. 93-103 ◽  
Author(s):  
Jorge A. Soto Puente ◽  
Kateryna Fatyeyeva ◽  
Stéphane Marais ◽  
Eric Dargent
Keyword(s):  
Barrier Properties ◽  
Water Barrier

Effect of Thickness on the Water-Barrier Properties of Silane Films

2007 ◽  
Vol 111 (42) ◽  
pp. 15325-15330 ◽  
Author(s):  
Guirong Pan ◽  
Erik Watkins ◽  
Jaroslaw Majewski ◽  
Dale W. Schaefer
Keyword(s):  
Barrier Properties ◽  
Water Barrier

The Study of Chitosan Solution Coating on Water Barrier Property of Seedling Paper Bag Made from Water Hyacinth

2021 ◽  
Vol 1047 ◽  
pp. 97-102
Author(s):  
Nattanicha Khamsao ◽  
Kornkamon Waengwan ◽  
Sunisorn Konchai ◽  
Poonnapat Patthong ◽  
Bpantamars Phadungchob ◽  
...  
Keyword(s):  
Water Hyacinth ◽  
Aquatic Plant ◽  
Water Resistance ◽  
Low Cost ◽  
Hydrophobic Surface ◽  
Chitosan Solution ◽  
Barrier Properties ◽  
Water Contact ◽  
Water Barrier ◽  
Spraying Method

Seedling bags are low cost and light weight containers used by farmers to germinate and sprout seeds into seedlings before transplanting into the ground. However, cutting and removing seedling bags before the transplantation can damage the plant roots and cause losses in their productivity. In addition, plastics used in conventional seedling bags contribute to more plastic waste during this process. This study offers a solution to these problems with alternative biodegradable materials; i.e. modified papers made from an invasive alien aquatic plant species—water hyacinth—and enhanced with Chitosan solution coating. Papers were made from water hyacinth and dipped or sprayed with Chitosan solution in acetic acid at concentrations of 1% wt., 1.5% wt., and 2% wt. The dipping method showed better water barrier properties than the spraying method in every concentration, with 2% wt. concentration having the best barrier properties. The 2% wt. concentration of Chitosan coating by dipping method changed the water contact angle of the water hyacinth paper from a hydrophilic to a hydrophobic surface. This enhancement in water resistance was confirmed by water absorption time, which reached over 1.5 hours—3 times longer than the spraying method.

Development of Waterproof Papers from Water Hyacinth Fibers Modified by Polylactide

2020 ◽  
Vol 1015 ◽  
pp. 89-93
Author(s):  
Thitipong Wutisart
Keyword(s):  
Water Absorption ◽  
Cross Section ◽  
Water Hyacinth ◽  
Barrier Properties ◽  
Hydrophobic Properties ◽  
Sem Images ◽  
Water Barrier

Paper made from water hyacinth which was modified by PLA solvent coating and the PLA content were varied for finding the most appropriate content. The SEM images of both surface and cross section were carried out for showing the interaction between the water hyacinth paper and PLA film. The water barrier properties of PLA content at 0.4 % (W/V) and 0.6 % (W/V) showed the hydrophobic properties of water hyacinth paper. The modified water hyacinth paper could resist water being indicated by water absorption which was over 90 minute/5µL in any PLA content.

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