Fabrication and Properties of Graphene Oxide-reinforced Carrageenan Film

doi:10.7503/cjcu20120685

Abstract

Abstract:

Graphene oxide(GO) was synthesized using a modified Hummer's method. GO and κ-Carra-geenan(κ-Car) film(GO/κ-Car film) was prepared via tape casting and characterized by IR, SEM, and TGA. We optimized the formula and preparation conditions of GO/κ-Car film by single-factor experiment to obtain the proper appearance, solubility, water vapor permeation and mechanical properties. The stable film was fabricated as follows: 15.0 g 3% κ-Car solution, 0.040 g GO powder and 5.0 g 8%PVA solution were mixed by intensely stirring for 5 h at 75 ℃. The mixture was then cast evenly, kept at 30 ℃ for 6.5 h and peeled off as a free-standing film. Compared with the κ-Car film, the mechanical properties of the GO/κ-Car film were significantly improved. With incorporation of 5.0 % GO, the peak load, tensile strength and tensile modulus of the GO/κ-Car film are improved by 1.5-fold, 1.5-fold and 1.6-fold, respectively. Meanwhile, GO/κ-Car film has good water vapor permeability as well as hydroxyl radical scavenging activity.

Key words: κ-Carrageenan, Graphene oxide, Composite film, Property

CLC Number:

O636.1

TrendMD:

ZUO Ping-Ping, ZHANG Yu-Long, FENG Hua-Feng, XIA Wei, ZHANG Wen-Qing, WANG Ming-Zhang. Fabrication and Properties of Graphene Oxide-reinforced Carrageenan Film[J]. Chem. J. Chinese Universities, 2013, 34(3): 692.

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Fabrication and Properties of Graphene Oxide-reinforced Carrageenan Film

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