Abstract:

     Graphene has been emerged as an important candidate for preparing high-performance polymer nanocomposite because of its many attracting characteristics such as large specific surface area, high modulus and versatile surface chemistry. In this work, Graphene is introduced into the natural rubber and styrene-butadiene rubber (SBR), both of which are mainly used for preparing vehicle tires. The graphene/rubber composites were obtained by the latex mixing and co-coagulation method. These composites all exhibit high reinforcement effect at extremely low graphene loading. In addition, the graphene/SBR composites shows good gas barrier ability and graphene/rubber composite exhibits excellent wear-resisting. Furthermore, graphene/SBR composite as masterbatch was applied into the silica-based rubber composite which is often applied in green tire tread. The result shows that graphene-silica co-filled SBR composite has remarkable comprehensive properties. For instance, the dynamic properties, rolling resistance and wear resistance of the composite are improved simultaneously with the incorporation of a small loading of graphene. Our work presents a potential possibility to open a graphene-related technical revolution in the tire industry. 

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Biography:

Education and main work experience
Ph. D.  Beijing University of Chemical Technology, 2000~2004
MS    Beijing University of Chemical Technology, 1996~1999
BE    Beijing University of Chemical Technology, 1989~1993
Work experience
Teaching Assistant  Beijing University of Chemical Technology, 1993~1997
Lecturer  Beijing University of Chemical Technology, 1997~2002
Associate Professor  Beijing University of Chemical Technology, 2002~2005
Professor  Beijing University of Chemical Technology, 2005
Item：
NSFC(National Natural Science Foundation of China) General Projects 3
National 863 plans projects 1
Beijing Natural Science Foundation 1
The Eleventh Five-Year Plan, China 1
Spark Program, China 1

Supported by Beijing nova programme, 2003
Supported by Fok Ying Tong Education Foundation for The Youth Scholars, 2005
Supported by Program for New Century Excellent Talents in University, 2006

Research Interests:
Rare earth/ polymer functional composites.
Special high-performance elastomer composites

Medal and Awards:
2004 Beijingl Sci-Tech Progress Award(II)
2004 The Sci-Tech Progress Award(II) of China Petroleum And Chemical Industry Association 
2006 The Sci-Tech Progress Award (I) of China Petroleum And Chemical Industry Association
2010 2006 The Sci-Tech Progress Award (I) of China Petroleum And Chemical Industry Association

Selected Publication Papers:
1.Yingyan Mao, Shipeng Wen, Yulong Chen, Fazhong Zhang, Pierre Panine, Tung W. Chan,Liqun Zhang, Yongri Liang & Li Liu*. High Performance Graphene Oxide Based Rubber Composites. Scientific Reports, 2013,3:2508.
2.Yulong Chen,Li Liu,*,Qingyuan Yang,*,Shipeng Wen,Liqun Zhang,and Chongli Zhong. Computational Study of Nanoparticle Dispersion and Spatial Distribution in Polymer Matrix under Oscillatory Shear Flow. Langmuir, 2013, 29, 13932−13942.
3.Yan Li, Bingyong Han, Li Liu*, Fazhong Zhang, Liqun Zhang, Shipeng Wen, Yonglai Lu, Haibo Yang, Jing Shen.Surface modification of silica by two-step method and properties of solution styrene butadiene rubber (SSBR) nanocomposites filled with modified silica. Composites Science and Technology, 2013,88:69-75.
4.Shen Jing, Wen Shipeng, Du Yishi, Li Ning, Zhang Liqun, Yang Yusheng, Liu Li*.The network and properties of the NR/SBR vulcanizate modified by electron beam irradiation. Radiation Physics and Chemistry,2013,92:99–104.
5.Shipeng Wen, Yao Zhou, Lu Yao, Liqun Zhang, Tung W. Chan, Yongri Liang, Li Liu*. In situ self-polymerization of unsaturated metal methacrylate and its dispersion mechanism in rubber-based composites. Thermochimica Acta,2013,571:15-20.
6.Shipeng Wen, Xiaoping Zhang, Lu Yao, Min Xi, Liqun Zhang, Hao Fong*and Li Liu*.Luminescence studies of electrospun core–sheath fibers with the core component being a rubber nanocomposite containing a Eu(III) complex.J. Mater. Chem. C, 2013, 1:1613-1617.
7.Shipeng Wen, Li Liu*, Liqun Zhang, Qi Chen, Liqun Zhang, Hao Fong.Hierarchical Electrospun SiO2 Nanofibers Containing SiO2 Nanoparticles with Controllable Surface-Roughness and/or Porosity. Materials Letters, 2010, 64 (13): 1517-1520.
8.Xiaoping Zhang, Shipeng Wen, Shui Hu, Qi Cheng, Hao Feng, Liqun Zhang, Li Liu*.Luminescence Properties of Eu (III) Complex/Polyvinylpyrrolidone Electrospun Nanofibers. Journal of Physical Chemistry C. 2010, 114(9): 3898-3903.
9.Shipeng Wen, Xiaoping Zhang, Shui Hu, Liqun Zhang, Li Liu*.Influence of in-situ reaction on luminescent properties of samarium-complex/hydrogenated acrylonitrile-butadiene composites. Polymer, 2009, 50(14): 3269-3274.
10.L. Liu, Y. L. Lu, et al. (2005). "Novel Europium-Complex/Nitrile- Butadiene Rubber Composites." Advanced Functional Materials 15(2): 309-314.
11.Liu, L., L. He, et al. (2004). "In situ Reaction and Radiation Protection Properties of Gd(AA)3/NR Composites." Macromolecular Rapid Communications 25(12): 1197-1202.
12.Liu, L., W. Zhang, et al. (2007). "Preparation and luminescence properties of Sm(TTA)3phen/NBR composites." Composites Science and Technology 67(10): 2199-2207.
13.Liu Li;, Xiujuan Zhang, et al. (2004). "Studies on the Preparation of Sm(AA)3/NBR Composites by in situ Reaction Method and Their Fluorescent Properties." Chemical Research In Chinese Universities 25(3): 570-574.
14.Li, L., H. Lei, et al. (2004). "Influence of Reaction-Induced Phase Decomposition to Dispersion of Samariam Acrylic Acid (Sm(AA)3) in Rubber and Shielding Property of Sm(AA)3/NR Composites." Journal of rare earth 22(spec): 085.
15.Li, L., Z. Liqun, et al. (2002). "Review on Rare Earth/Polymer Composite " Journal of rare earth 20(4): 241-248.
16.Yonglai Lu, L. Liu, et al. (2004). " Infrared study on in situ polymerization of zinc dimethacrylate in poly(α-octylene-co-ethylene) elastomer." Polymer International 53(6): 802-808.
17.Yang, C., L. Liu, et al. (2005). "Preparation of Tb(Pht)3Phen/rubber composites and characterization of their fluorescent properties." Journal of Applied Polymer Science 96(1): 20-28.
18.Lu, Y., L. Liu, et al. (2005). "Study on mechanical properties of elastomers reinforced by zinc dimethacrylate." European Polymer Journal 41(3): 589-598.
19.Lu, Y., L. Liu, et al. (2005). "The morphology of zinc dimethacrylate reinforced elastomers investigated by SEM and TEM." European Polymer Journal 41(3): 577-588.
20.Wen Shipeng, Feng Yuxing, Zhang Wan, Jin Riguang，Zhang Liqun, Liu Li. “The Fluorescence Properties of Eu3 /Gd3 /Citric Acid Mixed Complexes Doping in Silicon Rubber Matrix”. Journal of Rare Earths, 2006,24,Spec:122.
21.Zhang Wan,Liu Li, Wen Shipeng, Jin Riguang, Zhang Liqun. “The Eu(TTA)2(phen)(UAH)/SiR fluorescence materials prepared by in-situ reaction method”. Journal of Rare Earths, 2006,24,Spec:9.
22.Wu Xiaofei, Liu Li，Zhang Wang，Hu Shui，Jin Riguang，Zhang Liqun. “The Influence of Blending Temperature on Fluorescence Properties of Silicone Rubber Matrix Eu(TTA)2(phen)(MA) Composites”. Journal of Rare Earths, 2006,24,Spec:61.
23.Cao Jianli, Liu Li, Wu Xiaofei, Jin Riguang, Zhang Liqun. “Preparation and magnetism of Gd2O3/X－NBR composites”. Journal of Rare Earths, 2006,24,Spec:335.
24.Hu Shui, Liu Li, Zhang Wan, Wen Shipeng, Wu Xiaofei, Li Xiaolin. “Exploration of the reactive ability of Eu(TTA)2(phen)(MA)”. Journal of Rare Earths, 2006,24,Spec:14.