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We fabricate low-density polyethylene (LDPE) nanowire array with a diameter of 200 nm by using a nanoporous template wetting technique, and the thermal conductivity at 2080℃ is experimentally studied by a nanosecond laser flash method. The measured thermal conductivity of the fabricated nanowire array is about 2.2 W/mK at room temperature, which is about one order of magnitude higher than its bulk counterpart. The thermal conductivity is found to increase slightly with the increase of temperature. The estimated thermal conductivity of a single LDPE nanowire is as high as 5 W/mK at room temperature. The high orientation of chain of the LDPE nanowire may arise from the integrative effects of shear rate, vibrational perturbation, translocation, nanoconfinement and crystallization. Findings in this study provide a useful strategy for enhancing the intrinsic thermal properties of polymer nanostructures.
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Keywords:
- polymer nanowire /
- thermal conductivity /
- low-dimensional heat conduction /
- nanoporous template wetting
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[20] Steinhart M, Wendorff JH, Greiner A,Wehrspohn RB, Nielsch K, Schilling J, Choi J, Gosele U 2002 Science 296 1997
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[23] Xie H Q, Cai A, Wang X W 2007 Phys. Lett. A 369 120
[24] Abdalla M, Dean D, Theodore M, Fielding J, Nyairo E, Price G 2010 Polymer 51 1614
[25] Absi J, Smith D S, Nait-Ali B, Grandjean S, Berjonnaux J 2005 J. Euro. Ceram. Soc. 25 367
[26] Degiovanni A 1977 Rev Gen Therm (France) 185 420
[27] Lepri S, Livi R, Politi A 2003 Phys. Rep. 377 1
[28] Dhar A 2008 Adv. Phys. 57 457
[29] Venerus D C, Schieber J D, Balasubramanian V, Bush K, Smoukov S 2004 Phys. Rev. Lett. 93 098301
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[32] Garcia-Gutierrez M C, Linares A, Hernandez J J, Rueda J J, Ezquerra T A, Poza P, Davies R J 2010Nano Lett. 10 1472
[33] Mahanandia P, Schneider J J, Khaneft M, Stuhn B, Peixoto T P, Drossel B 2010 Phys. Chem. Chem. Phys. 12 4407
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[1] Wang R Y, Segalman R A, Majumdar A 2006 Appl. Phys. Lett. 89 173113
[2] Jin J Z, Manoharan M P, Wang Q, Haque M A 2009 Appl. Phys. Lett. 95 033113
[3] Losego M D, Moh L, Arpin K A, Cahill D G, Braun P V 2010 Appl. Phys. Lett. 97 011908
[4] Chen G 2000 Int. J. Thermal Sci. 39 471
[5] Liang X G 2007 Chin. Sci. Bull. 52 2457
[6] Cao B Y, Li Y W 2010 J. Chem. Phys. 133 024106
[7] Wang Z L, Guo L J, Tang D W, Zhu Y T 2008 Acta Phys. Sin. 57 3391 (in Chinese) [王照亮, 梁金国, 唐大伟, Zhu Y T 2008 物理学报 57 3391]
[8] Hou Q W, Cao B Y, Guo Z Y 2009 Acta Phys. Sin. 58 7809 (in Chinese) [侯泉文, 曹炳阳, 过增元 2009 物理学报 58 7809]
[9] Jin W, Hui N J, Qu S X 2011 Acta Phys. Sin. 60 016301 (in Chinese) [金蔚, 惠宁菊, 屈世显 2011 物理学报 60 016301]
[10] Bao Z G, Chen Y P, Ouyang T, Yang K K, Zhong J X 2011 60 028103 (in Chinese) [鲍志刚, 陈元平, 欧阳滔, 杨凯科, 钟建新 2011 物理学报 60 028103]
[11] Huxtable ST, Cahill DG, Shenogin S, Xue LP, Ozisik R, Barone P, Usrey M, Strano MS, Siddons G, Shim M, Keblinski P 2003 Nature Mater. 2 731
[12] Henry A, Chen G 2008 Phys. Rev. Lett. 101 235502
[13] Henry A, Chen G 2009 Phys. Rev. B 79 144305
[14] Wang Z H, Carter J A, Lagutchev A, Koh Y K, Seong N H, Cahill D G, Dlott D D 2007 Science 317 787
[15] Choy C L, Fei Y, Xi T G 1993 J. Polymer Sci. B: Polymer Phys. 31 365
[16] Choy C L, Wong Y W, Yang G W, Kanamoto T 1999 J. Polymer Sci. B: Polymer Phys. 37 3359
[17] Fujishiro H, Ikebe M, Kashima T, Yamanaka A 1998 Jpn. J. Appl. Phys. 37 1994
[18] Liu J, Yang R G 2010 Phys. Rev. B 81 174122
[19] Shen S, Henry A, Tong J, Zheng RT, Chen G 2010 Nature Nanotech. 5 251
[20] Steinhart M, Wendorff JH, Greiner A,Wehrspohn RB, Nielsch K, Schilling J, Choi J, Gosele U 2002 Science 296 1997
[21] Kong J, Xu Y, Yung K L, Xie YC, He L 2009 J. Phys. Chem. C 113 624
[22] Rendon S, Burghardt WR, Auad M L, Kornfield J A 2007 Macromolecules 40 6624
[23] Xie H Q, Cai A, Wang X W 2007 Phys. Lett. A 369 120
[24] Abdalla M, Dean D, Theodore M, Fielding J, Nyairo E, Price G 2010 Polymer 51 1614
[25] Absi J, Smith D S, Nait-Ali B, Grandjean S, Berjonnaux J 2005 J. Euro. Ceram. Soc. 25 367
[26] Degiovanni A 1977 Rev Gen Therm (France) 185 420
[27] Lepri S, Livi R, Politi A 2003 Phys. Rep. 377 1
[28] Dhar A 2008 Adv. Phys. 57 457
[29] Venerus D C, Schieber J D, Balasubramanian V, Bush K, Smoukov S 2004 Phys. Rev. Lett. 93 098301
[30] Marencic A P, Adamson D H, Chaikin P M, Register R A 2010 Phys. Rev. E 81 011503
[31] Meller A 2003 J Phys: Condens Matter 15 R581
[32] Garcia-Gutierrez M C, Linares A, Hernandez J J, Rueda J J, Ezquerra T A, Poza P, Davies R J 2010Nano Lett. 10 1472
[33] Mahanandia P, Schneider J J, Khaneft M, Stuhn B, Peixoto T P, Drossel B 2010 Phys. Chem. Chem. Phys. 12 4407
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