Facile preparation of poly(vinyl alcohol) nanocomposites with pristine layered double hydroxides

2011 ◽  
Vol 130 (3) ◽  
pp. 890-896 ◽  
Author(s):  
Shu Huang ◽  
Xi Cen ◽  
Hong Zhu ◽  
Zhe Yang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Facile Preparation ◽  
Double Hydroxides

Facile preparation and characterization of poly(vinyl alcohol)-NaCl-glycerol supramolecular hydrogel electrolyte

2018 ◽  
Vol 106 ◽  
pp. 206-213 ◽  
Author(s):  
Shuijiao Peng ◽  
Shuxuan Liu ◽  
Yujun Sun ◽  
Nanping Xiang ◽  
Xiancai Jiang ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Supramolecular Hydrogel ◽  
Facile Preparation

scholarly journals Mussel-Inspired Approach to Constructing Dual Network Coated Layered Clay for Enhanced Barrier and Antibacterial Properties of Poly(vinyl alcohol) Nanocomposites

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2093
Author(s):  
Long Mao ◽  
Jianda Xie ◽  
Huiqing Wu ◽  
Yuejun Liu
Keyword(s):  
Vinyl Alcohol ◽  
Antibacterial Properties ◽  
Water Vapor Permeability ◽  
Poly Vinyl Alcohol ◽  
Vapor Permeability ◽  
One Pot ◽  
Solution Casting Method ◽  
Uv Transmittance ◽  
Layered Clay ◽  
Double Hydroxides

Inspired by complexation and mussel adhesion of catechol groups in tannic acid (TA), organophilic layered double hydroxides (LDHs@TA-Ti) were synthesized by forming a one-pot assembled TA-titanium (Ti) dual network coating on the surface of layered clay for the first time. LDHs@TA-Ti/poly(vinyl alcohol) (PVA) nanocomposites were prepared by the solution casting method. The results show that TA-Ti(IV) and TiO2 coordination compounds are simultaneously formed due to hydrolysis of titanium tetrachloride and complexation of TA in aqueous solution. Upon TA-Ti coatings onto the surface of LDHs, the antibacterial rate of LDHs@TA-Ti is up to 99.98%. Corresponding LDHs@TA-Ti/PVA nanocomposites also show outstanding antibacterial properties. Compared with pure PVA, LDHs@TA-Ti/PVA nanocomposites show a 40.9% increase in tensile strength, a 17.5% increase in elongation at break, a 35.9% decrease in oxygen permeability and a 26.0% decrease in water vapor permeability when adding 1 wt % LDHs@TA-Ti. UV transmittance (at 300 nm) of LDHs@TA-Ti/PVA nanocomposites decrease by 99.4% when the content of LDHs@TA-Ti reaches 3 wt %. These results indicate that PVA matrix incorporated with LDHs@TA-Ti could be used as a potential active packaging material to extend the shelf life of food products.

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