Development of High Functional Coating Agents for Pulp Mold (IV) - Manufacture of higher functional and biodegradable coating agents -

펄프몰드용 새로운 고기능 코팅제 제조기술개발(제4보) - 고기능 생분해성 코팅제 제조 -

  • Kang Jin-Ha (Division of Forest Science, College of Agricultural Life Sciences, Chonbuk National University) ;
  • Lim Hyun-A (Institute of Agricultural Science & Technology, Chonbuk National University) ;
  • Park Seong-Cheol (Institute of Agricultural Science & Technology, Chonbuk National University)
  • 강진하 (전북대학교 농업생명과학대학 산림과학부) ;
  • 임현아 (전북대학교 농업과학기술연구소) ;
  • 박성철 (전북대학교 농업과학기술연구소)
  • Published : 2006.03.01

Abstract

This study was carried out to produce high functional and biodegradable coating agents for pulp mold by evaluating various kinds of biodegradable polymers. Five kinds of biodegradable polymers were used. In addition, the mixture of the carboxymethylated starch and biodegradable polymers(${\kappa}$-carrageenan, chitosan) were used for mixed coating agents. Physical properties of coated paperboards were evaluated. Conclusions obtained were as follows. 4% ${\kappa}$-carrageenan and 5% chitosan showed higher water and oil resistance. 10% sodium alginate, 4% corn zein and 15% polycaprolactone showed high water resistance while no improvement was found on oil resistance. The optimum mixture ratios for the mixed coating agents were 90:10(carboxymethylated starch : ${\kappa}$-carrageenan) and 50:50(carboxymethylated starch : chitosan). Since these mixed coating agents have excellent biodegradability with higher water and oil resistance, these can be used for the environmental-friendly coating agents.

Keywords

References

  1. 홍석인, 전분을 이용한 생분해성 포장소재 개발, 식품과학과 산업, 32(1):94-99 (1999)
  2. 임종환, 황금택, 박현진, 정순택, 카라기난 필름의 투습 특성, 한국식품과학회지, 28(3):545-551 (1996)
  3. 임종환, 황금택, 박현진, 강성국, 정순택, 카라기난 필름 및 카라기난 코팅 종이포장지의 유지투과 특성, 한국식품과학회지, 30(2):379-384 (1998)
  4. Park, H. J., Gas and mechanical Barrier properties of Carrageenan-based biopolymer films, 식품과학과산업, 29(2):47-53 (1996)
  5. 박선영, 박현진, ${\kappa}$-카라기난과 키토산 혼합 필름의 물성, 한국식품과학회지, 30(4):855-861 (1998)
  6. Nishiyama, M., Biodegradable plastics derived from homogenized cellulose and chitosan, 식품과학과 산업, 29(2):38-41 (1996)
  7. Choi, W. Y., Park, H. J., Ahn, D. J., Lee, I. and Lee, C. Y., Wettability of Chitosan Coating Solution on 'Fiji' Apple Skin, Food Engineering and Phsical Properties, 67(7):2668-2672 (2002)
  8. Lai, H. M., Padua, G. W. and Wei, L. S., Properties and microstructure of zein sheets plasticized with palmitic and stearic acids, Cereal Chem., 74:83-90 (1997) https://doi.org/10.1094/CCHEM.1997.74.1.83
  9. Trezza, T. A. and Vergano, P. J., Grease resistance of corn zein coated paper, J. of Food Science, 59(4):912-915 (1994) https://doi.org/10.1111/j.1365-2621.1994.tb08156.x
  10. Thomas, A. T., Wiles, J. L. and Vergano, P. J., Water vapor and oxygen barrier properties of corn zein coated paper, Tappi J., 81(8):171-176 (1998)
  11. 강진하, 임현아, 펄프몰드용 새로운 고기능 코팅제제조기술개발(제3보) - 코팅용 전분유도체 제조 -, 펄프.종이기술, 36(4):49-59 (2004)