POLYMERS AND POLYMER MATRIX COMPOSITES |
|
|
|
|
|
Phase Structure and Thermo-electric Effect of Multi-walled Carbon Nanotubes/ Thermoplastic Vulcanizate Composites Prepared by Dynamic Vulcanization |
TANG Qi1, YAN Tongtong1, SUN Hao1, WANG Xiaolei1,2, WANG Chunfu1, ZONG Chengzhong1,2
|
1 School of Materials Science and Engineering, University of Science and Technology Qingdao, Qingdao 266042, China 2 Key Laboratory of Rubber-plastics of Ministry of Education, Qingdao 266042, China |
|
|
Abstract MWCNTs/TPV composites were prepared by dynamic vulcanization method, the effect of three different dynamic vulcanization processes and the content of MWCNTs on the phase structure, dielectric properties, thermal conductivity and physical properties of MWCNTs/TPV composites were investigated. The MWCNTs/TPV composites exhibited “island” structure, and the IIR crosslinked particles are dispersed in the PP matrix in a micron state. The dynamic vulcanization process mainly affected the distribution of MWCNTs. The MWCNTs/TPV composites with uniform distribution of MWCNTs in two phases had higher thermo-electric properties. When the MWCNTs content reached the percolation threshold (3wt%), the network structure of MWCNTs was formed, and the AC conductivity, dielectric constant and thermal conductivity of MWCNTs/TPV composites increased sharply. With the increase of MWCNTs, the elastic modulus of MWCNTs/TPV composites increased gradually, and the tensile strength increased first and then decreased. MWCNTs could improve the interfacial adhesion of TPV matrix. Compared with pure TPV, when the content of MWCNTs was 3wt%, the tensile strength of MWCNTs/TPV composites was increased by 39%. Based on the phase structure of MWCNTs/TPV composites and the percolation threshold of MWCNTs, the network structure of MWCNTs was proposed. The MWCNTs mainly overlaped with the MWCNTs at the PP matrix and the interface between the rubber-plastic phase to form a MWCNTs network.
|
Published: 23 March 2021
|
|
Fund:Natural Science Foundation of Shandong Province (ZR2016XJ002). |
About author:: Qi Tang is a doctor student at Qingdao University of Science and Technology, focuses on the functionalization and modification of thermoplastic vulcanizates. Chengzhong Zong obtained his doctorate degree in materials science from Beijing University of Chemical Technology in 1999. He is currently a professor at Qingdao University of Science and Technology and a doctoral tutor. He is the dean of the School of Polymer Materials Science and Engineering of Qingdao University of Science and Technology. He has been engaged in the teaching and research and management of polymer materials for a long time. He was named as the academic leader of key positions in the polymer materials discipline of Shandong Pro-vince and a member of the Qingdao Municipal Political Consultative Confe-rence. He presided over the National 863 Program, the National Natural Science Foundation, the Ministry of Education and the Shandong Provincial Project, and the multi-phase of corporate cooperation projects. He has published more than 100 papers in professional journals and academic confe-rences at home and abroad, and applied for more than 20 invention patents. |
|
|
1 Kalkornsurapranee E, Vennemann N, Claudia Kummerlowe C K, et al. Iranian Polymer Journal,2012,21(10),689. 2 Wu D F, Lv Q L, Feng S H, et al. Carbon,2015,95,380. 3 Ma L F, Bao R Y, Dou R, et al. Composites Science and Technology,2016,128,176. 4 Yoshihiko K, Yoshikawa H, Kunio A, et al. Langmuir,2008,24(2),547. 5 Yang D, Zhang L Q, Liu H L, et al. Journal of Applied Polymer Science,2012(3),125,2196. 6 Khodabandelou M, Aghjeh M K. Polymer Bulletin,2016,73(6),1067. 7 Chang Y, Pei J Y, Zhou S S, et al. Materials Reports A: Review Papers,2017,31(10),84(in Chinese). 常艺,裴久阳,周苏生,等.材料导报:综述篇,2017,31(10),84. 8 Tian H C, Tian M, Liu L P, et al. Acta Materiae Compositae Sinica,2004,21(5),35(in Chinese). 田洪池,田明,刘莉萍,等.复合材料学报,2004,21(5),35. 9 Ning N Y, Hu L J, Yao P J, et al. Journal of Applied Polymer Science,2016,133,43043. 10 Liao F S, Su A C, Hsu T C. Polymer,1994,35(12),2579. 11 Shi Y Y, Yang J H, Huang T, et al. Composites, Part B,2013,55,463. 12 Lattimer R P, Kinsey R A, Layer R W, et al. Rubber Chemistry and Technology,1989,62(1),107. 13 Matchawet S, Kaesaman A, Bomlai P, et al. Journal of Composite Mate-rials,2015,50(16),5596. 14 Xiao X D, Zhong Z, Weng G J. Mechanics of Materials,2017,109,42. 15 Salaeh S. Processing of natural rubber composites and blends: relation between structure and properties. Ph.D. Thesis, University Claude Bernard-Lyon I, France,2014. 16 Dou R, Shao Y, Li S L, et al. Polymer,2016,83,34. 17 Zhang R, Bin Y X, Tang P, et al. Polymer Materials Science and Engineering,2016,32(11),45(in Chinese). 张荣,宾月珍,唐萍,等.高分子材料科学与工程,2016,32(11),45. 18 Liu S T, Tian M, Zhang L Q, et al. Journal of Materials Science,2016,51(5),2616. 19 Tian M, Yan B Y, Yao Y, et al. Journal of Materials Chemistry C,2014,2,8388. 20 Oderkerk J, Schaetzen G D, Goderis B, et al. Macromolecules,2002,35(17),6623. 21 Huy T A, Luepke T, Radusch H J. Journal of Applied Polymer Science,2001,80(2),148. |
|
|
|