Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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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
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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

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