scholarly journals Facile synthesis of high strength hot-water wood extract films with oxygen-barrier performance

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Ge-Gu Chen ◽  
Gen-Que Fu ◽  
Xiao-Jun Wang ◽  
Xiao-Dong Gong ◽  
Ya-Shuai Niu ◽  
...  
Keyword(s):  
High Strength ◽  
Hot Water ◽  
Oxygen Barrier ◽  
Facile Synthesis ◽  
Barrier Performance ◽  
Wood Extract

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

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

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

scholarly journals Properties of Reactive Powder Concrete Using Local Materials and Various Curing Conditions

2019 ◽  
Vol 4 (6) ◽  
pp. 74-83 ◽  
Author(s):  
Gamal I. K. ◽  
K. M. Elsayed ◽  
Mohamed Hussein Makhlouf ◽  
M. Alaa
Keyword(s):  
Compressive Strength ◽  
Silica Fume ◽  
High Strength Concrete ◽  
Steel Fiber ◽  
High Strength ◽  
Hot Water ◽  
Reactive Powder Concrete ◽  
Normal Water ◽  
Reactive Powder ◽  
Local Materials

Reactive Powder Concrete RPC is comprise of (cement, quartz powder, sand, and superplasticizer) mixture with low water/cement ratio. It has not coarse aggregates and characterized by highly dense matrix, high strength concrete, excellent durability, and economic. This study aims to investigate fresh and hardened properties of locally cast RPC with several available economical materials such as silica fume (SF), fly ash (FA), steel fiber (STF), and glass fiber (GF). Experimental investigation were performed to study the effectiveness of partial replacement of cement by SF or FA to reach ultra-high strength concrete, effect of additional materials STF or GF in order to improve the fracture properties of the RPC mixes, and influence of the treated with normal water as well as with hot water. Fifteen different RPC mixes were cast with 20, 25, 30, and 35% cement replacement by SF, 25% cement replacement by FA, and another proportions taken combination between SF and FA with percentages 15, 20, 25% FA and constant 10% SF. Varying fiber types (steel fiber or glass fiber) added to concrete by different percentages 1, 2, and 3%. Specimens were treated with normal water 25ᵒC and hot water at 60ᵒC and 90ᵒC by 2 mixes with silica fume content 25% of binder and steel fiber content 2% by total volume. Performance of the various mixes is tested by the slump flow, compressive strength, flexure strength, splitting tensile strength, and density. The production of RPC using local materials is successfully get compressive strength of 121 MPa at the age of 28 days at standard conditions and normal water curing 25°C with Silica fume content 25% of binder and steel fiber content 2% by total volume of RPC and water/binder ratio of 0.25.  The results also showed the effect of curing by hot water 60 and 90°C, it is observed that compressive strength increases proportionally with curing temperatures and a compressive strength of 149.1 MPa at 90°C for 1days was obtained.

Preparation of polyacrylic acid-grafted-acryloyl/hemicellulose (PAA-g-AH) hybrid films with high oxygen barrier performance

2019 ◽  
Vol 205 ◽  
pp. 83-88 ◽  
Author(s):  
Ran Liu ◽  
Jian Du ◽  
Zepeng Zhang ◽  
Haiming Li ◽  
Jie Lu ◽  
...  
Keyword(s):  
Polyacrylic Acid ◽  
High Oxygen ◽  
Oxygen Barrier ◽  
Hybrid Films ◽  
Barrier Performance

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.

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