화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.30, No.1, 70-74, January, 2006
Export Citation
용융가공법을 이용한 셀룰로오스 디아세테이트/라미섬유 천연복합체의 제조
Preparation of Cellulose Diacetate/Ramie Fiber Biocomposites by Melt Processing
이상환, 이상율, 남재도1, 이영관†
  • 성균관대학교 화학공학과
  • 1성균관대학교 고분자공학과
Sang Hwan Lee, Sang Yool Lee, Jae Do Nam1, and YoungKwan Lee†
  • Department of Chemical Engineering, Sungkyunkwan University, 300 Chunchun-Dong Jangan-Gu, Suwon, Kyungki-Do 440-746, Korea
  • 1Department of Polymer Science & Engineering, Sungkyunkwan University, 300 ChunChun-Dong Jangan-Gu, Suwon, Kyungki-Do 440-746, Korea
E-mail:
초록
셀룰로오스 디아세테이트(CDA)에 가소제로서 트리아세틴(TA)과 에폭시화된 콩기름(ESO)을 첨가하여 고속믹서에서 일차적으로 CDA를 가소화한 후, 여기에 화학적으로 처리한 라미섬유를 각각 첨가하여 천연섬유 복합체를 제조하였다. DMA측정에서 tan δ 피크로부터 유리전이 온도를 확인한 결과, 가소화된 CDA혼합체는 85 ℃를 나타내고 여기에 라미섬유를 첨가하여 복합화한 필름의 경우는 55 ℃ 증가한 140 ℃의 Tg를 보였다. 기계적 강도 측정에서는 알칼리 처리된 라미섬유 필름이 상용화된 폴리프로필렌에 비교하여 인장강도와 탄성률이 각각 15%와 41% 향상된 높은 수치로 우수한 물성이 관찰되었다. 또한 복합 필름의 SEM 이미지로부터 알칼리 처리한 라미섬유(AlRa)는 가소화된 CDA간의 계면접착성이 향상되었음을 확인할 수 있었다.
Plasticized cellulose diacetate (CDA) was prepared by homogenizing cellulose diacetate (CDA), triacetin (TA), and epoxidized soybean oil (ESO) in a high-speed mixer, then the CDA mixture was mixed with ramie fiber to produce a green composite material. In DMA analysis, the glass transition temperature of plasticized CDA and the composite was observed at 85 ℃ and 140 ℃, respectively. A composite reinforced with alkali treated ramie fiber exhibited significantly higher mechanical properties, such as 15% increase in tensile strength as well as 41% increase in Young's modulus when compared with commercial polypropylene. In the SEM image analysis, much enhanced adhesion between plasticized CDA and alkali treated ramie fiber (AIRa) was observed.
Keywords:biocomposites;cellulose diacetate;natural fiber;green composite
  1. Young CR, Koleng JJ, McGinity JW, Int. J. Pharm., 242, 87 (2002) 
  2. Liu J, Zhang F, McGinity JW, Eur. J. Pharm. Biopharm., 52, 181 (2001) 
  3. Sprockel OL, Sen M, Shivanand P, Prapaitrakul W, Int. J. Pharm., 155, 191 (1997) 
  4. Gilbert RD, Venditti RA, Zhang CS, Koelling KW, J. Appl. Polym. Sci., 77(2), 418 (2000) 
  5. Qiu WL, Zhang FR, Endo T, Hirotsu T, J. Appl. Polym. Sci., 87(2), 337 (2003) 
  6. Mormann W, Spitzer D, Macromol. Symp., 176, 279 (2001) 
  7. Schauber T, Vos SD, Huhn W, Rieger B, Moller M, Macromol. Chem. Phys., 200, 574 (1999) 
  8. Zhang F, Qiu W, Yang L, Endo T, Hirotsu T, J. Mater. Chem., 12, 24 (2002) 
  9. Mwaikambo LY, Ansell MP, Angew. Makromol. Chem., 272, 108 (1999) 
  10. Lu X, Zhang MQ, Rong MZ, Shi G, Yang GC, Zeng HM, Adv. Compos. Lett., 8, 231 (1999)
  11. Hon DNS, Josefina MSL, J. Polym. Sci. A: Polym. Chem., 27, 4143 (1989) 
  12. Hon DNS, Ou NJ, J. Polym. Sci. A: Polym. Chem., 27, 2457 (1989) 
  13. Kiso Y, Kitao T, Nishimura K, J. Appl. Polym. Sci., 71(10), 1657 (1999) 
  14. Pauly J, Allaart H, Rodriguez M, Streck R, Cancer Res., 55, 253 (1995)
  15. Frohoff-Hulsmann MA, Lippold NC, McGinity KW, Eur. J. Pharm. Biopharm., 48, 67 (1999) 
  16. Bechard SR, Levy L, Clas SD, Int. J. Pharm., 114, 205 (1995) 
  17. Hyppola R, Husson I, Sundholm F, Int. J. Pharm., 133, 161 (1996) 
  18. Mohanty AK, Wibowo A, Misra M, Drzal LT, Polym. Eng. Sci., 43(5), 1151 (2003) 
  19. Do CH, Polym.(Korea), 28(1), 1 (2004)
  20. Choi SH, Cho MS, Kim D, Kim JH, Lee DH, Shim SJ, Nam JD, Lee Y, Polym.(Korea), 29(4), 399 (2005)
  21. Mohanty AK, Misra M, Drzal LT, Compos. Interfaces, 8, 313 (2001) 
  22. Mishra S, Mohanty AK, Drzal LT, Misra M, Parija S, Nayak SK, Tripathy SS, Compos. Sci. Technol., 63, 1377 (2003) 
  23. Law PW, Longdon A, Willins GG, Marcromol. Symp., 208, 293 (2004) 
  24. Pothan LA, Oommen Z, Thomas S, Compos. Sci. Technol., 63, 223 (2003)
  25. Gassan J, Bledzki AK, Compos. Sci. Technol., 59, 1301 (1999)
  26. Mohanty AK, Khan MA, Sahoo S, Hinrichsen G, J. Mater. Sci., 35(10), 2589 (2000) 
  27. Albano C, Gonzalez J, Ichazo M, Kaiser D, Polym. Degrad. Stabil., 66, 179 (1999) 
  28. Marcovich NE, Reboredo MM, Aranguren MI, Thermochim. Acta, 372(1-2), 45 (2001)