한국섬유공학회지 (Textile Science and Engineering)

  • 제48권3호
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  • Pages.142-149
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  • 2011
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

실리카 첨가에 의한 폴리카보네이트 수지의 니스크래치 특성 개선

Enhancement of Scratch Resistance of Polycarbonate by the Addition of Mineral Silica

  • 이병익 (전남대학교 고분자.섬유시스템공학과) ;
  • 임균택 (전남대학교 고분자.섬유시스템공학과) ;
  • 이무성 (전남대학교 응용화학공학부 광.전자화공소재)
  • Lee, Byung-Ick (Department of Polymer and Fiber System Engineering, Chonnam National University) ;
  • Lim, Gyun-Taek (Department of Polymer and Fiber System Engineering, Chonnam National University) ;
  • Lee, Moo-Sung (School of Applied Chemical Engineering, Chonnam National University)
  • 투고 : 2011.03.16
  • 심사 : 2011.05.21
  • 발행 : 2011.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

Polycarbonate (PC)/mineral silica composites were prepared by melt-mixing to improve PC's surface characteristics. The silica's surface was modified using a silane coupling agent with amine functional moiety prior to blending. The effects of silica on the PC's morphology, dynamic mechanical properties, molecular weight, and pencil hardness were investigated. Although SEM showed that silane treatment promoted interfacial adhesion between the PC and the silica, the storage modulus of the PC/silica composites increases with increasing silica content irrespective of silane treatment. Silica addition decreased the molecular weight (MW), and thus the melt viscosity of PC in the composites. The reduction was slightly greater at higher silica contents and when silane-treated silica was added. Despite the detrimental effects of silica on the MW, the pencil hardness of the PC increased to F grade when silane-treated silica of 40 phr was added possibly due to the increased modulus and interfacial adhesion.

키워드

과제정보

연구 과제 주관 기관 : 전남대학교

참고문헌

  1. D. G. Legrand and J. T. Bendler, "Handbook of Polycarbonate Science and Technology", Marcel Dekker, New York, 2000.
  2. R. Puyenbroek and W. J. D. Steendam, "Scratch Resistant Polycarbonate Compositions", US Patent Application, 20090124749 (2009).
  3. H. de Brouwer, R. D. van Grampel, J. F. Hoover, A. A. M. Kusters, J.-P. Lens, and A. J. P. van Zyl, "Polyestercarbonate Copolymers with High Scratch Resistance", US Patent Application, 20100130700 (2010).
  4. S. Nakano, "Polycarbonate-modified Acrylic Polymers for Coating Materials", Progress in Organic Coatings, 1999, 35, 141-151. https://doi.org/10.1016/S0300-9440(98)00082-4
  5. K. H. Kwon, I. J. Kim, S. K. Park, J. K. Koo, B. N. Jang, J. H. Choi, T. U. Kim, and B. C. Lee, "Polycarbonate Resin Composition with Improved Transparency and Scratch-Resistance", US Patent Application, 20100152357 (2010).
  6. S. Hong, C. C. Zhou, and X. Shen, "Transparent Polycarbonate Blend", US Patent Application, 20090142537 (2009).
  7. V. P. Paranjape, A. V. Zyl, P. Lens, and D. Shen, "Scratch-Resistant, Transparent Polycarbonates with Eco-Compliant Flame Properties", ANTEC, 2009, 890-896.
  8. R. N. Rothon, "Particulate-Filled Polymer Composites", 2nd Ed., Rapra Technol, Shawbury, 2003.
  9. K. Yamada, K. Tomari, T. Harada, H. Hamada, and N. Ikuta, "Effect of Urethane Binder on Fiber Reinforced Polycarbonate Injection Moldings", Composite Interfaces, 2001, 8, 403-413. https://doi.org/10.1163/156855401753424442
  10. M. R. Parvaiz, P. A. Mahanwar, S. Mohanty, and S. K. Nayak, "Morphological, Mechanical, Thermal, Electrical and Rheological Properties of Polycarbonate Composites Reinforced with Surfaces Modified Mica", J Minerals & Materials Characterization & Engineering, 2010, 9, 985-996. https://doi.org/10.4236/jmmce.2010.911071
  11. S. C. Tjong and Y. Z. Meng, "Mechanical and Thermal Properties of Poly carbonate Composites Reinforced with Potassium Titanate Whiskers", J Appl Polym Sci, 1999, 72, 501-508. https://doi.org/10.1002/(SICI)1097-4628(19990425)72:4<501::AID-APP6>3.0.CO;2-2
  12. T. A. Ezquerra, J. Martinez-Salazar, and F. J. Balta Calleja, "Percolation Threshold of Conductive Polycarbonate/Carbon Composites as Revealed by Electron Microscopy", J Mater Sci Lett, 1986, 5, 1065-1066. https://doi.org/10.1007/BF01730285
  13. B. I. Lee, S. H. Kim, and M. S. Lee, "Preparation and Physical Properties of Biodegradible Poly(L-lactide )/silica Composites", Text Sci Eng, 2008, 45, 269-275.
  14. N. R. Rosenquist, "Thermoplastic Polycarbonate Resins Reinforced with Silane Treated Fillers", US Patent, 4,357,271 (1980).
  15. L. E. Nielsen and R. F. Landel, "Mechanical Properties of Polymers and Composites", 2nd Ed., Marcel Dekker, NY, 1994, Chap. 7.
  16. F. N. Ahmad, M. Jaafar, S. Palaniandy, and K. A. M. Azizli, "Effect of Particle Shape of Silica Mineral on the Properties of Epoxy Composites", Compos Sci Technol, 2008, 68, 346-353. https://doi.org/10.1016/j.compscitech.2007.07.015
  17. P. Sae-oui, C. Sirisinha, U. Thepsuwan, and K. Hatthapanit, "Roles of Silane Coupling Agents on Properties of Silica-filled Polychloroprene", Eur Polym J, 2006, 42, 479-486. https://doi.org/10.1016/j.eurpolymj.2005.09.003
  18. P. C. Hiemenz and T. P. Lodge, "Polymer Chemistry", 2nd Ed., CRC Press, NY, 2007, p.449.
  19. Z. Dobkowski, "Determination of Critical Molecular Weight for Entangled Macromolecules Using the Tensile Strength Data", Rheological Acta, 1995, 34, 578-585. https://doi.org/10.1007/BF00712317
  20. R. D. K. Misra, R. Hadal, and S. J. Duncan, "Surface Damage Behavior during Scratch Deformation of Mineral Reinforced Polymer Composites", Acta Material, 2004, 52, 4363-4376. https://doi.org/10.1016/j.actamat.2004.06.003