한국섬유공학회지 (Textile Science and Engineering)

  • 제41권5호
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  • Pages.365-377
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  • 2004
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

폴리올의 주성분으로 전분을 이용하여 제조된 폴리우레탄 경질 발포체의 구조 및 기계적 특성에 대한 연구

Studies on the Structural and Mechanical Properties of Polyurethane Rigid Foams Prepared Using Starch as a Main Component of Polyols

  • 김대현 (서울대학교 천연섬유학과) ;
  • 양성률 (서울대학교 천연섬유학과) ;
  • 권오진 (서울대학교 천연섬유학과) ;
  • 박종신 (서울대학교 천연섬유학과)
  • 발행 : 2004.10.01
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, we prepared polyurethane rigid foams through a one-shot process, using 100 parts of polyols (PEG:glycerol:starch=9:1:l0 in the weight ratio), 60 to 100 parts of 2,4-TDI as an isocyanate, and 1 to 20 parts of water as a blowing agent. The foams had open-cell structure, whose cell size was approximately 0.5-1 mm and the thickness of the cell wall decreased with increasing water content. The apparent densities also decreased with increasing water content, 0.232-0.141 g/㎤ in TS5-60, 0.233-0.074 g/㎤ in TS5-80, and 0.265-0.085 g/㎤ in TS5-100, respectively. To confirm the reactions between isocyanate groups of 2,4-TDI and hydroxyl groups of polyols (PEG, glycerol, and starch) or water, FT-IR spectroscopic analysis and a solubility test in DMF were performed. The thermal property of the foams was investigated using DSC. From the results of the impact test, the impact resistance of the foams showed a maximum of 48.092 J/m at TS5-60-6, 70.951 J/m at TS5-80-8, and 88.062 J/m at TS5-100-8, respectively. From the compression test, the compressive stress showed a maximum of 402.5 KPa at TS5-60-6, 621.3 KPa at TS5-80-6, and 604.9 KPa at TS5-100-8. And the compressive elastic modulus showed a maximum of 14.94 MPa at TS5-60-6, 15.72 MPa at TS5-80-7, 16.52 MPa at TS5-100-8, respectively.

키워드

참고문헌

  1. E. Querat, L. Tighzert, J. P. Pascault, and K. Dusek, 'Blocked Isocyanate: Reaction and Thermal Behavior of the Toluene 2,4-Diisocyanate Dimer', Die Angewandte Makromolekulare Chemie, 242, 1-36(1996) https://doi.org/10.1002/apmc.1996.052420101
  2. M. C. Delpech and F. M. B. Coutinho, 'Waterborne Anionic Polyurethanes and Poly(urethane-urea)s: Influence of the Chain Extender on Mechanical and Adhesive Properties', Polym. Testing, 19, 939-952(2000) https://doi.org/10.1016/S0142-9418(99)00066-5
  3. C. P. Chwang, C. L. Wang, Y. M. Kuo, S. N. Lee, A. Chao, and D. Y. Chao, 'On the Study of Polyurethane Ionomer- Part I', Polym. Adv. Tech., 13, 285-292(2002) https://doi.org/10.1002/pat.187
  4. Y. C. Chou and L. J. Lee, Mechanical Properties of Polyurethane-Unsaturated Polyester Interpenetrating Polymer Networks', Polym. Eng. Sci., 35, 976-988(1995) https://doi.org/10.1002/pen.760351204
  5. Y. Okamoto, Y. Hasegawa, and F. Yoshino, 'Urethane/Acrylic Composite Polymer Emulsions', Progress in Organic Coatings, 29, 175-182(1996) https://doi.org/10.1016/S0300-9440(96)00660-1
  6. H. P. Bhunia, G. B. Nando, T. K. Chaki, A. Basak, S. Lenka, and P. L. Nayak, 'Synthesis and Characterization of Polymers from Cashewnut Shell Liquid (CNSL), a Renewable Resource II. Synthesis of Polyurethanes', Eur. Polym. J., 35, 1381-1391(1999) https://doi.org/10.1016/S0014-3057(98)00225-0
  7. E. J. Vandenberg, 'Epoxide Polymers: Synthesis, Stereochemistry, Structure, and Mechanism', J. Polym. Sci. Part A-1, Polym. Chem., 7, 525-567(1969) https://doi.org/10.1002/pol.1969.150070210
  8. A. Lucas, L. Rodriguez, M. P. Collado, P. Sanchez, and J. F. Rodriguez, 'Synthesis of Polyols by Anionic Polymerization: Determination of Kinetic Parameters of Propylene Oxide Polymerization Using Calcium and Potassium Alcoholates', Polym. Int., 51, 1066-1071(2002) https://doi.org/10.1002/pi.909
  9. Y. Chen, G. Zhang, and H. Zhang, 'Preparation of Polyether Triol and Three-Armed Polyether Triol by Tetrahydrofuran Polymerization Initiated with Heteropolyacid', Macromol. Chem. Phys., 202, 1440-1445(2001) https://doi.org/10.1002/1521-3935(20010501)202:8<1440::AID-MACP1440>3.0.CO;2-R
  10. L. Zhang and Q. Zhou, 'Effects of Molecular Weight of Nitrocellulose on Structure and Properties of Polyurethane/Nitrocellulose IPNs', J. Polym. Sci., Part B, Polym, Phys., 37, 1623-1631(1999) https://doi.org/10.1002/(SICI)1099-0488(19990715)37:14<1623::AID-POLB7>3.0.CO;2-5
  11. S. Gao and L. Zhang, 'Semi-interpenetrating Polymer Networks from Castor Oil-based Polyurethane and Nitrokonjac Glucomannan', J. Appl. Polym. Sci., 81, 2076-2083(2001) https://doi.org/10.1002/app.1641
  12. I. Javni, W. Zhang, and Z. S. Petrovic, 'Effect of Different Isocyanates on the Properties of Soy-Based Polyurethanes', J. Appl. Polym. Sci., 88, 2912-2916(2003) https://doi.org/10.1002/app.11966
  13. P. Zetterlund, S. Hirose, and T. Hatakeyama, 'Thermal and Mechanical Properties of Polyurethanes Derived from Mono- and Disaccharides', Polym. Int., 42, 1-8(1997) https://doi.org/10.1002/(SICI)1097-0126(199701)42:1<1::AID-PI636>3.0.CO;2-L
  14. F. Bachmann, J. Reimer, M. Ruppenstein, and J. Thiem, 'Synthesis of a Novel Starch-Derived AB-type Polyurethane', Macromol. Rapid Commun., 19, 21-26(1998) https://doi.org/10.1002/(SICI)1521-3927(19980101)19:1<21::AID-MARC21>3.0.CO;2-T
  15. S. Ryabov, N. Kotelnikova, Y. Kercha, S. Laptiy, R. Gaiduk, L. Kosenko, and A. Yakovenko, 'Preparation of Polymer Composites on the Base of Polyurethanes and Natural Polysaccharides', Macromol. Symp., 164, 421-428(2001) https://doi.org/10.1002/1521-3900(200102)164:1<421::AID-MASY421>3.0.CO;2-D
  16. P. Gong and L. Zhang, 'Properties and Interfacial Bonding of Regenerated Cellulose Films Coated with Polyurethane-Chitosan IPN Coating', J. Appl. Polym. Sci., 68, 1313-1319 (1998) https://doi.org/10.1002/(SICI)1097-4628(19980523)68:8<1313::AID-APP13>3.0.CO;2-#
  17. Y. Yao, M. Yoshioka, and N. Shiraishi, 'Water-Absorbing Polyurethane Foams from Liquefied Starch', J. Appl. Polym. Sci., 60, 1939-1949(1996) https://doi.org/10.1002/(SICI)1097-4628(19960613)60:11<1939::AID-APP18>3.0.CO;2-W
  18. Y. Liu, M. S. Lindblad, E. Ranucci, and A. C. Albertsson, 'New Segmented Poly(ester-urethane)s from Renewable Resources', J. Polym. Sci., Part A, Polym. Chem., 39, 630-639(2001) https://doi.org/10.1002/1099-0518(20010301)39:5<630::AID-POLA1034>3.0.CO;2-1
  19. S. K. Ha and H. C. Broecker, 'Characteristics of Polyurethanes Incorporating Starch Granules', Polymer, 43, 5227-5234 (2002) https://doi.org/10.1016/S0032-3861(02)00344-0
  20. G. Ustun and H. Civelekolu, 'Copolymerization of Turkish Tall Oil Specimens with Indene-Coumarone(II) - Production and Properties of Indene-Coumarone Modified Tall Oil Varnishes', J. Appl. Polym. Sci., 43, 1969-1975(1991) https://doi.org/10.1002/app.1991.070431102
  21. I. Arvanitoyannis, A. Nakayama, and S. I. Aiba, 'Edible Films Made from Hydroxypropyl Starch and Gelatin and Plasticized by Polyols and Water', Carbohydrate Polym., 36, 105-119(1998) https://doi.org/10.1016/S0144-8617(98)00017-4
  22. I. Arvanitoyannis, C. G. Biliaderis, H. Ogawa, and N. Kawasaki, 'Biodegradable Films Made from Low-density Polyethylene(LDPE), Rice Starch and Potato Starch for Food Packaging Applications : Part 1', Carbohydrate Polym., 36, 89-104(1998) https://doi.org/10.1016/S0144-8617(98)00016-2
  23. J. Abecassis, R. Abbou, M. Chaurand, M. H. Morel, and P. Vernoux, 'Influence of Extrusion Conditions on Extrusion Speed, Temperature, and Pressure in the Extruder and on Paste Quality', Cereal Chem., 71, 247-253(1994)
  24. R. S. Heilbrounn, 'Hydrothermal Modification of Starches: The Difference between Annealing and Heat/Moisture-Treatment', Starch, 44, 205-214(1992) https://doi.org/10.1002/star.19920440603