Molecular‐Level Dispersion of Graphene into Poly(vinyl alcohol) and Effective Reinforcement of their Nanocomposites

Advanced Functional Materials - Tập 19 Số 14 - Trang 2297-2302 - 2009
Jiajie Liang1, Yi Huang1, Long Zhang1, Yan Wang1, Yanfeng Ma1, Taoli Guo1, Yongsheng Chen1
1Key Laboratory of Functional Polymer Materials and Centre of Nanoscale Science and Technology Institute of Polymer Chemistry, College of Chemistry, Nankai University 300071, Tianjin (P. R. China)

Tóm tắt

AbstractDespite great recent progress with carbon nanotubes and other nanoscale fillers, the development of strong, durable, and cost‐efficient multifunctional nanocomposite materials has yet to be achieved. The challenges are to achieve molecule‐level dispersion and maximum interfacial interaction between the nanofiller and the matrix at low loading. Here, the preparation of poly(vinyl alcohol) (PVA) nanocomposites with graphene oxide (GO) using a simple water solution processing method is reported. Efficient load transfer is found between the nanofiller graphene and matrix PVA and the mechanical properties of the graphene‐based nanocomposite with molecule‐level dispersion are significantly improved. A 76% increase in tensile strength and a 62% improvement of Young's modulus are achieved by addition of only 0.7 wt% of GO. The experimentally determined Young's modulus is in excellent agreement with theoretical simulation.

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