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Received December 18, 2013
Accepted March 10, 2014
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Silica Aerogel과 펄프 복합체의 기계적 특성에 관한 연구
A Study on Mechanical Properties of Composite of Silica Aerogel and pulps
한서대학교 화학공학과, 충남 서산시 해미면 한서1로 46 1선문대학교 생명화학공학과, 충남 아산시 탕정면 선문로 221번길 70 2선문대학교 하이브리드공학과, 충남 아산시 탕정면 선문로 221번길 70
Department of Chemical Engineering, HanSeo Unversity, 46 Hanseo 1-ro, Haemi-myun, Seosan-si, Chungnam 356-706, Korea 1Department of Chemical and Biochemical Engineering, SunMoon University, 70, 221 beon-gil, Sunmoon-ro, Tangjeong-myeon, Asan-si, Chungnam 336-708, Korea 2Department of Hybrid Engineering, SunMoon University, 70, 221 beon-gil, Sunmoon-ro, Tangjeong-myeon, Asan-si, Chungnam 336-708, Korea
chchoi@sunmoon.ac.kr
Korean Chemical Engineering Research, June 2014, 52(3), 335-339(5), 10.9713/kcer.2014.52.3.335 Epub 2 June 2014
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Abstract
본 연구는 실리카 에어로겔-펄프 복합체의 특성을 조사하였다. Paste 형태의 실리카 에어로겔과 펄프를 혼합하여 복합체를 제조하였으며, SEM 분석을 실시하였다. 또한 임피던스 튜브를 사용하여 흡음률을 측정하였다. 흡음계수의 피크치는 900 Hz 범위에서 얻어졌다. 실리카 에어로겔-펄프 혼합체는 우수한 흡음성능과 복합체의 표면이 소수성을 띠기 때문에 기인하는 내구성 때문에 새로운 흡음제의 가능성이 있다고 사료된다.
The studies on the characteristics of composite of silica aerogel and pulps were carried out. The composite was manufactured by mixing the paste of silica aerogel and pulps and analyzed by SEM. Using the impedence tube, the sound absorption measurement was investigated. The maximum value of sound absorption coefficient of this composite was obtained in the range of 900 Hz. It was found that the composite of silica aerogel and pulps could be a new sound_x000D_
absorbent because of high absorption capacity and durability which was due to hydrophobic effect on the surface of the composite.
Keywords
References
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Shewale PM, Rao AV, Rao AP, Appl. Surf. Sci., 254(21), 6902 (2008)
Tillotson TM, Sunderland WE, Thomas IM, Hrubesh LW, “Synthesis of Lanthanide and Lanthanide Silicate Aerogels,”J. Sol. Gel. Sci. Technol., 1P:241-24 (1994)
Brinker CJ, Scherer GW, “Sol-gel Science the Physics and Chemistry of Sol-gel Processing,” Academic Press, New-York (1990)
Vacher R, Phalippou J, Pelous J, Woignier T, (eds), “Proceedings of the Second International Symposium on Aerogels (ISA2),” Rev. Phys. Appl. Colloq, 24-C4 (1989)
Zhang G, et al,, J. Non-Cryst. Solids, 350, 152 (2004)
Fischer F, Rigacci A, Pirard R, Berthon-Fabry S, Achard P, Polymer, 47(22), 7636 (2006)
Sequeira S, Evtuuin D, Portugal I, “Preperation and Properties of Cellulose/Silica Hybrid Composites,” C27, 172-179 (2009)
Son H, Kim H, Lee G, Kim J, Sung W, Korean J. Chem. Eng., 31(2), 338 (2014)
Youn LS, Kim YC, Korean Chem. Eng. Res., 49(3), 301 (2011)
Ju KM, Yong HT, Lee DH, “Acoustical Properties of Polyester Sound Absorbing Materials,” Autumn Conference Proceedings of the Korean Society for Noise and Vibration Engineering, Korea, 1347-1352 (2001)
Maa DY, Noise Control Engineering Journal, 29(3), 77 (1987)
Lee DH, Yong HT, Lee S, Journal of the SAREK, 14(1), 63 (2002)
Lee DH, Hur SC, Kwon YP, Transactions of the Korean Society for Noise and and Vibration Engineering., 12(9), 709 (2002)
Heo SW, Ju KM, Hur SC, Yong HT, Lee DH, “Acoustical Performance Measurement of Steel-Wire Sound Absorbing Materials,” Proceedings of the SAREK 2002 Winter Annual Conference, Korea, 438-443 (2002)
Ju KM, Lee DH, Yong HT, “A Study on the Physical Characteristics of Steel-Wire Sound Absorbing Materials,” Spring Conference Proceedings of the Korean Society for Noise and Vibration Engineering, Korea, 1244-1249 (2002)
