Abstract
The in-plane thermal conductivity of cellulose nanofiber (CNF) composite film densely covered with nanodiamond (ND) particles has been improved by using the wet-rotating disc milling (WRDM) process and optimizing the compositional ratio of ND and CNF. The aspect ratio of CNF fibrils was increased by 42% using the WRDM. Furthermore, the in-plane thermal conductivities of CNF and ND/CNF films composed of WRDM-assisted CNF fibrils were improved with the increase of the aspect ratio of CNF fibrils. In addition, the mass ratio of ND to CNF and the in-plane thermal conductivity of the ND/CNF composite film were enhanced by using the WRDM-assisted ND suspensions owing to the improvement of dispersibility of ND particles. Consequently, the in-plane thermal conductivity of the ND/CNF film increased by 82% from 2.67 to 4.85 W/m K with the increase of the aspect ratio of CNF fibrils, thus improving the dispersibility of ND particles and optimizing the compositional ratio of ND and CNF. The dense adsorption of ND particles on the surface of CNF fibrils with high aspect ratio led to the improvement of the in-plane thermal conductivity of the composite film.
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Agari Y, Ueda A, Nagai S (1993) Thermal conductivity of a polymer composite. J Appl Polym Sci 49:1625–1634
Berman R, Klemens PG (1978) Thermal conduction in solids. Phys Today 31:56
Cai N, Hou D, Luo X, Han C, Fu J, Zeng H, Yu F (2016a) Enhancing mechanical properties of polyelectrolyte complex nanofibers with graphene oxide nanofillers pretreated by polycation. Compos Sci Technol 135:128–136
Cai N, Li C, Luo X, Xue Y, Shen L, Yu F (2016b) A strategy for improving mechanical properties of composite nanofibers through surface functionalization of fillers with hyperbranched polyglycerol. J Mater Sci 51:797–808
Chen W et al (2014) Comparative study of aerogels obtained from differently prepared nanocellulose fibers. ChemSusChem 7:154–161
Gruen DM (1999) Nanocrystalline diamond films. Annu Rev Mater Sci 29:211–259
Ishizaki T, Nagano H (2015) Measurement of three-dimensional anisotropic thermal diffusivities for carbon fiber-reinforced plastics using lock-in thermography. Int J Thermophys 36:2577–2589. https://doi.org/10.1007/s10765-014-1755-5
Jakob H, Fengel D, Tschegg S, Fratzl P (1995) The elementary cellulose fibril in Picea abies: comparison of transmission electron microscopy, small-angle X-ray scattering, and wide-angle X-ray scattering results. Macromolecules 28:8782–8787
Kobayashi Y, Saito T, Isogai A (2014) Aerogels with 3D ordered nanofiber skeletons of liquid-crystalline nanocellulose derivatives as tough and transparent insulators. Angew Chem 126:10562–10565
Lee G-W, Lee JI, Lee S-S, Park M, Kim J (2005) Comparisons of thermal properties between inorganic filler and acid-treated multiwall nanotube/polymer composites. J Mater Sci 40:1259–1263
Lee ES, Lee SM, Shanefield DJ, Cannon WR (2008) Enhanced thermal conductivity of polymer matrix composite via high solids loading of aluminum nitride in epoxy resin. J Am Ceram Soc 91:1169–1174
Martinez D et al (2001) Characterizing the mobility of papermaking fibres during sedimentation. In: Proceedings of the transactions of 12th fundamental research symposium, Oxford, pp 225–254
Mochalin VN, Shenderova O, Ho D, Gogotsi Y (2012) The properties and applications of nanodiamonds. Nat Nanotechnol 7:11
Morishita T, Okamoto H (2016) Facile exfoliation and noncovalent superacid functionalization of boron nitride nanosheets and their use for highly thermally conductive and electrically insulating polymer nanocomposites. ACS Appl Mater Interfaces 8:27064–27073. https://doi.org/10.1021/acsami.6b08404
Neitzel I, Mochalin V, Knoke I, Palmese GR, Gogotsi Y (2011) Mechanical properties of epoxy composites with high contents of nanodiamond. Compos Sci Technol 71:710–716
Nishino T, Takano K, Nakamae K (1995) Elastic modulus of the crystalline regions of cellulose polymorphs. J Polym Sci Part B Polym Phys 33:1647–1651
Omura N, Hotta Y, Sato K, Kinemuchi Y, Kume S, Watari K (2006) Fabrication of stable Al2O3 slurries and dense green bodies using wet jet milling. J Am Ceram Soc 89:2738–2743. https://doi.org/10.1111/j.1551-2916.2006.01142.x
Sato K et al (2010) Thermally conductive composite films of hexagonal boron nitride and polyimide with affinity-enhanced interfaces. J Mater Chem 20:2749–2752. https://doi.org/10.1039/b924997d
Sato K, Ijuin A, Hotta Y (2015) Thermal conductivity enhancement of alumina/polyamide composites via interfacial modification. Ceram Int 41:10314–10318
Sato K, Tominaga Y, Hotta Y, Shibuya H, Sugie M, Saruyama T (2018) Cellulose nanofiber/nanodiamond composite films: thermal conductivity enhancement achieved by a tuned nanostructure. Adv Powder Technol 29(4):972–976
Saxena IM, Brown RM Jr (2005) Cellulose biosynthesis: current views and evolving concepts. Ann Bot 96:9–21
Shimazaki Y, Miyazaki Y, Takezawa Y, Nogi M, Abe K, Ifuku S, Yano H (2007) Excellent thermal conductivity of transparent cellulose nanofiber/epoxy resin nanocomposites. Biomacromolecules 8:2976–2978
Siró I, Plackett D (2010) Microfibrillated cellulose and new nanocomposite materials: a review. Cellulose 17:459–494
Tominaga Y, Sato K, Yan X, Shimamoto D, Imai Y, Hotta Y (2015) Exfoliation of hexagonal boron nitride using wet-rotating disc milling. J Ceram Soc Japan 123:512–515. https://doi.org/10.2109/jcersj2.123.512
Uetani K, Okada T, Oyama HT (2015) Crystallite size effect on thermal conductive properties of nonwoven nanocellulose sheets. Biomacromolecules 16:2220–2227
Yano H, Sugiyama J, Nakagaito AN, Nogi M, Matsuura T, Hikita M, Handa K (2005) Optically transparent composites reinforced with networks of bacterial nanofibers. Adv Mater 17:153–155
Zhang L, Batchelor W, Varanasi S, Tsuzuki T, Wang X (2012) Effect of cellulose nanofiber dimensions on sheet forming through filtration. Cellulose 19:561–574
Zhang Y, Choi JR, Park S-J (2017) Thermal conductivity and thermo-physical properties of nanodiamond-attached exfoliated hexagonal boron nitride/epoxy nanocomposites for microelectronics. Compos Part A Appl S 101:227–236
Zhang Y, Rhee KY, Hui D, Park S-J (2018) A critical review of nanodiamond based nanocomposites: Synthesis, properties and applications. Compos Part B Eng 143:19–27
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Tominaga, Y., Sato, K., Hotta, Y. et al. Improvement of thermal conductivity of composite film composed of cellulose nanofiber and nanodiamond by optimizing process parameters. Cellulose 25, 3973–3983 (2018). https://doi.org/10.1007/s10570-018-1869-1
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DOI: https://doi.org/10.1007/s10570-018-1869-1