Dispersion and Exfoliation of Graphene in Rubber by an Ultrasonically‐Assisted Latex Mixing and In situ Reduction Process

Macromolecular Materials and Engineering - Tập 296 Số 7 - Trang 590-602 - 2011
Yanhu Zhan1, Jinkui Wu1, Hesheng Xia1, Ning Yan1, Guoxia Fei1, Guiping Yuan2
1State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
2Analytical & Testing Center, Sichuan University, Chengdu 610065, China

Tóm tắt

AbstractNR/GE composites were prepared by an ultrasonically‐assisted latex mixing and in situ reduction process. Graphene oxide was dispersed in NRL using an ultrasonic field and was then reduced in situ, followed by latex coagulation to obtain the NR/GE masterbatch. The results show that the process produces a much better dispersion and exfoliation of GE in the matrix and contributes to an increase in the tensile strength compared to conventional direct mixing. Compared to pure rubber, the tensile strength and tear strength for NR/(2 wt.‐%)GE composites were increased by ≈47 and 50%, respectively. With increasing GE content, the maximum torque, crosslink density, elastic modulus, and thermal conductivity of NR/GE composites were found to increase. magnified image

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Thông tin xuất bản

Macromolecular Materials and Engineering

Tập 296 Số 7

590-602

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