scholarly journals Facile and green preparation of hemicellulose-based film with elevated hydrophobicity via cross-linking with citric acid

RSC Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 2395-2401 ◽  
Author(s):  
Hui Shao ◽  
Hui Sun ◽  
Biao Yang ◽  
Huijuan Zhang ◽  
Yu Hu
Keyword(s):  
Citric Acid ◽  
Cross Linking ◽  
Oxygen Barrier ◽  
Barrier Performance

The esterification of hemicellulose with citric acid formed cross-linking structure and promoted the hydrophobicity and oxygen barrier performance of films.

Ecofriendly Fabrication of Modified Graphene Oxide Latex Nanocomposites with High Oxygen Barrier Performance

2016 ◽  
Vol 8 (48) ◽  
pp. 33210-33220 ◽  
Author(s):  
Yidan Guan ◽  
Kevin P. Meyers ◽  
Sharathkumar K. Mendon ◽  
Guangjie Hao ◽  
Jessica R. Douglas ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Oxygen ◽  
Oxygen Barrier ◽  
Modified Graphene Oxide ◽  
Barrier Performance ◽  
Modified Graphene

Cross-linking of cellulose and poly(ethylene glycol) with citric acid

2015 ◽  
Vol 90 ◽  
pp. 21-24 ◽  
Author(s):  
Pamela de Cuadro ◽  
Tiina Belt ◽  
Katri S. Kontturi ◽  
Mehedi Reza ◽  
Eero Kontturi ◽  
...  
Keyword(s):  
Citric Acid ◽  
Ethylene Glycol ◽  
Cross Linking ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Effect of γ-Fe2O3 Nanoparticles on the Cross-Linking and Final Properties of PVA/Citric Acid-Based Nanocomposites

2020 ◽  
Vol 124 (9) ◽  
pp. 5444-5451
Author(s):  
Irati Barandiaran ◽  
Junkal Gutierrez ◽  
Agnieszka Tercjak ◽  
Galder Kortaberria
Keyword(s):  
Citric Acid ◽  
Cross Linking ◽  
Fe2o3 Nanoparticles ◽  
The Cross

Citric Acid Cross-Linking of Carboxymethyl Sago Starch Based Hydrogel for Controlled Release Application

2018 ◽  
Vol 382 (1) ◽  
pp. 1800086 ◽  
Author(s):  
Nurul Aida Nordin ◽  
Norizah Abdul Rahman ◽  
Norhashidah Talip ◽  
Norzita Yacob
Keyword(s):  
Citric Acid ◽  
Controlled Release ◽  
Cross Linking ◽  
Sago Starch

Gas and Water Vapor Barrier Performance of Cellulose Nanocrystal–Citric Acid-Coated Polypropylene for Flexible Packaging

2020 ◽  
Vol 2 (11) ◽  
pp. 4405-4414
Author(s):  
Md Nuruddin ◽  
Deepa M. Korani ◽  
Hyungyung Jo ◽  
Reaz A. Chowdhury ◽  
Francisco J. Montes ◽  
...  
Keyword(s):  
Water Vapor ◽  
Citric Acid ◽  
Cellulose Nanocrystal ◽  
Water Vapor Barrier ◽  
Flexible Packaging ◽  
Barrier Performance

Humidity-triggered self-healing films with excellent oxygen barrier performance

2014 ◽  
Vol 50 (54) ◽  
pp. 7136 ◽  
Author(s):  
Yibo Dou ◽  
Awu Zhou ◽  
Ting Pan ◽  
Jingbin Han ◽  
Min Wei ◽  
...  
Keyword(s):  
Oxygen Barrier ◽  
Self Healing ◽  
Barrier Performance

Influence of Citric Acid and Curing Time on Water Uptake

2014 ◽  
Vol 625 ◽  
pp. 123-126 ◽  
Author(s):  
Sohibatul Muizzah Mohamad Izhar ◽  
Ku Zilati Ku Shaari ◽  
Zakaria Man ◽  
Yon Norasyikin Samsudin
Keyword(s):  
Citric Acid ◽  
Water Uptake ◽  
Barrier Properties ◽  
High Water ◽  
Cross Linking ◽  
Curing Time ◽  
Gas Barrier ◽  
Water Sensitivity ◽  
Hydrophilic Character ◽  
Starch Films

Starch is highly promising biopolymer for the production of packaging material since it gives films a good tensile and gas barrier properties. However, non-plasticized starch films are brittle and their hydrophilic character results in poor moisture barrier properties and high water sensitivity. In order to improve films formation and material properties of starch, plasticization and chemical modification such as cross-linking of the starch is required. The cross-linking reaction able to improve thermal stability, tensile strength and decreased the dissolution of starch films in water and formic acid. From the study, the percentage of water uptake reduced when the blending ratio of citric acid increased.The percentage of water uptake highly affected by curing time compared to blending ratio. Increasing the curing time from 1 hour to 2 hour significantly reduced the percentage of water uptake. At 4 hour curing time, the percentage water uptake reached equilibrium faster than 3 hour curing time. This shows that more citric acid molecules were chemically bonded with the starch chains, resulting in higher cross link degree and thus, reduced the percentage of water uptake.

scholarly journals Exceptional oxygen barrier performance of pullulan nanocomposites with ultra-low loading of graphene oxide

2015 ◽  
Vol 26 (27) ◽  
pp. 275703 ◽  
Author(s):  
Ilke Uysal Unalan ◽  
Chaoying Wan ◽  
Łukasz Figiel ◽  
Richard T Olsson ◽  
Silvia Trabattoni ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Barrier ◽  
Barrier Performance
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