Abstract
Silicone-modified graphene was successfully synthesized by treating graphene oxide with 3-aminopropyltriethoxysilane (AMEO) and then reduced by hydrazine hydrate. Subsequently, the AMEO-functionalized graphene was incorporated into polyurethane (PU) matrix to prepare AMEO-functionalized graphene/PU nanocomposite coatings. The functionalized graphene could disperse homogenously by means of a covalent connection with PU. AMEO-functionalized graphene (AFG)-reinforced PU nanocomposite coatings showed more excellent mechanical and thermal properties than those of pure PU. A 227 % increase in tensile strength and a 71.7 % improvement of elongation at break were obtained by addition 0.2 wt% of AFG. Meanwhile, thermogravimetric analysis reveals that thermal degradation temperature was enhanced almost 50 °C higher than that of neat PU, and differential scanning calorimetry analysis demonstrates that glass transition temperature decreased by around 9 °C. The thermal conductivity of AFG/PU nanocomposite coatings also increased by 40 % at low AFG loadings of 0.2 wt%.
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Potts JR, Dreyer DR, Bielawski CW, Ruoff RS (2011) Graphene-base polymer nanocomposites. Polymer 52:5–25
Naffakh M, Diez-Pascual AM, Gomez-Fatou MA (2011) New hybrid nanocomposites containing carbon nanotubes, inorganic fullerene-like WS2 nanoparticles and poly(ether ether ketone) (PEEK). J Mater Chem 21:7425–7433
Arai S, Sato T, Endo M (2011) Fabrication of various electroless Ni–P alloy/multiwalled carbon nanotube composite films on an acrylonitrile butadiene styrene resin. Surf Coat Tech 205:3175–3181
Reddy KR, Jeong HM, Lee Y, Raghu AV (2010) Synthesis of MWCNTs-core/thiophene polymer-sheath composite nanoscables by a cationic surfactant-assisted chemical oxidative polymerization and their structural properties. Polym Chem 48:1477–1484
Keshri AK, Patel R, Agarwal A (2010) Comprehensive process maps to synthesize high density plasma sprayed aluminum oxide composite coatings with varying carbon nanotube content. Surf Coat Tech 205:690–702
Abyzov AM, Kidalov SV, Shakhov FM (2012) High thermal conductivity composite of diamond particles with tungsten coating in a copper matrix for heat sink application. Appl Therm Eng 48:72–80
Novoselov KS, Geim AK, Morozov SV et al (2004) Electric field effect in atomically thin carbon films. Science 306:666–669
Chae HK, Siberio-Perez DY, Kim J et al (2004) A route to high surface area, porosity and inclusion of large molecules in crystals. Nature 427:523–527
Lee C, Wei X, Kysar JW et al (2008) Measurement of the elastic properties and intrinsic strength of monolayer graphene. Science 321:385–388
Balandin AA, Ghosh S, Bao W et al (2008) Superior thermal conductivity of single-layer graphene. Nano Lett 8:902–907
Bolotin KI, Sikes KJ, Jiang Z et al (2008) Ultrahigh electron mobility in suspended graphene. Solid State Commun 146:351–355
Tang ZH, Lei YD, Guo BC et al (2012) The use of rhodamine B-decorated graphene as a reinforcement in polyvinyl alcohol composites. Polymer 53:673–680
Yoon IS (2011) Role of poly(N-vinyl-2-pyrrolidone) as stabilizer for dispersion of graphene via hydrophobic interaction. J Mater Sci 46:1316–1321
Jaemyung K, Laura JC et al (2012) Two-dimensional soft material: new faces of graphene oxide. Acc Chem Res 45:1356–1364
Stankovich S, Piner RD, Nguyen ST et al (2006) Synthesis and exfoliation of isocyanate-treated graphene oxide nanoplatelets. Carbon 44:3342–3347
Ramanathan T, Abdala AA, Stankovich S et al (2008) Functionalized graphene sheets for polymer nanocomposites. Nat Nanotechnol 3:327–331
Kim H, Miura Y, Macosko CW (2010) Graphene/polyurethane nanocomposites for improved gas barrier and electrical conductivity. Chem Mater 22:3441–3450
Lee YR, Raghu AV, Jeong HM, Kim BK (2009) Properties of waterbrone polyurethane/functionalized graphene sheet nanocomposites prepared by an in situ method. Macromol Chem Phys 210:1247–1254
Leivo EM, Keltberg TH, Kotari MJ (2001) Structure and thermal conductivity of flame sprayed polyamide 11 coatings filled with AIN, Al2O3 and BN ceramics. ASM Int Mater Park 204:327–330
Lu X, XU G, Hofstra PG (1998) Moisture absorption, dielectric relaxation, and thermal conductivity studies of polymer composites. J Polym Sci 36:2259–2265
Choy CL (1977) Thermal conductivity of polymer. Polymer 18:984–1004
Zhou WY, Qi SH et al (2007) High temperature and insulating heat conductive coating. Acta Materiae Compositae Sinica 24:28–32
Hummers W, Offeman R (1958) Preparation of graphitic oxide. J Am Chem Soc 80:1339–1339
Yuen SM, Ma CCM, Chiang CL (2008) Silane-grafted MWCNT/polyimide composites preparation, morphological and electrical properties. Compos Sci Technol 68:2842–2848
Yang H, Li F, Shan C, Han D, Zhang Q, Niu L, Ivaska A (2009) Covalent functionalization of chemically converted graphene sheets via silane and its reinforcement. J Mater Chem 19:4632–4638
Hemraj-Benny T, Wong SS (2006) Silylation of single-walled carbon nanotubes. Chem Mater 18:4827–4839
Hou SF, Su SJ, Kasner ML, Shah P, Patel K, Madarang CJ (2010) Formation of highly stable dispersions of silane-functionalized reduced graphene oxide. Chem Phys Lett 501:68–74
Pinto PR, Menders LC, Dias ML, Azuma C (2006) Synthesis of acrylic-modified sol–gel silica. Colloid Polym Sci 284:529–535
Prassas M, Phalippou JL, Mench L, Zarzycki J (1982) Preparation of xNa2O-(1 − x)SiO2 gels for the gel-glass process: I. Atmospheric effect on the structural evolution of the gels. J Non-Cryst Solids 48:79–95
Stankovich S, Dikin DA, Piner RD, Kohlhaas KA, Kleinhammers A, Jia Y, Wu Y, Nguyen ST, Ruoff RS (2007) Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide. Carbon 45:1558–1565
McLauchlin AR, Thomas NL (2009) Preparation and thermal characterisation of poly(lactic acid) nanocomposites prepared from organoclays based on an amphoteric surfactant. Polym Degrad Stab 94:868–872
Zhong H, Lukes JR (2006) Interfacial thermal resistance between carbon nanotubes: molecular dynamics simulations and analytical thermal modeling. Phys Rev B: Condens Matter 74:1–10
Huxtable S, Cahill D, Shenogin S, Xue L, Ozisik R, Barone P, Usrey M, Strano M, Siddons G, Shim M, Keblinski P (2003) Interfacial heat flow in carbon nanotube suspensions. Nat Mater 2:731–734
Shenogin S, Liping X, Ozisik R, Keblinski P (2004) Role of thermal boundary resistance on the heat flow in carbon-nanotube composites. J Appl Phys 95:8136–8144
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We acknowledge the financial support from both the National Natural Science Foundation of China (51072059) and Guangdong Science and Technology Project (2011A081301018).
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Ma, W., Wu, L., Zhang, D. et al. Preparation and properties of 3-aminopropyltriethoxysilane functionalized graphene/polyurethane nanocomposite coatings. Colloid Polym Sci 291, 2765–2773 (2013). https://doi.org/10.1007/s00396-013-3014-x
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DOI: https://doi.org/10.1007/s00396-013-3014-x