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

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

Development of Higher Functional Coating Agents for Pulp Mold (III) Manufacture of starch derivatives for coating -

펄프몰드용 새로운 고기능 코팅제 제조기술개발(제3보) -코팅용 전분유도체 제조-

  • Kang Jin Ha (Division of Forest Science, College of Agricultural Life Sciences, Chonbuk National University) ;
  • Lim Hyun A (Division of Forest Science, College of Agricultural Life Sciences, Chonbuk National University)
  • 강진하 (전북대학교 농업생명과학대학 산림과학부) ;
  • 임현아 (전북대학교 농업생명과학대학 산림과학부)
  • Published : 2004.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study was carried out to obtain the basic data for producing higher functional coating agents for pulp mold by evaluating various kinds of starch derivatives. At that time, four kinds of starch derivatives were manufactured for making coating agents respectively. Physical properties of coated paperboards were tested. Conclusions obtained from this results were as follows. The water and oil resistance of hydroxypropylated, cyanoethylated and carboxymethy­lated starch were high when degree of molar substitution(DS) of propylene oxide, acrylonitrile and sodium monochloroacetate were 0.18, 0.07 and 0.009, respectively. Also, the those of crosslinked starch were high when degree of crosslinking of epichlorohydrin was 0.02. Consequently, $8\%$ solution of carboxymethylated starch made with DS 0.009 of monochloroacetate was the best among coating agents from starch derivatives men­tioned above.

Keywords

References

  1. 홍석인, 전분을 이용한 생분해성 포장소재 개발, 식품과학화 산업, 32(1):94-99 (1999)
  2. Otey, F. H., Mark, A. M., Mehltretter, Ch. L. and Russell, Ch. R., Starch-based film for degradable agricultural mulch., Ind. Eng. Chem. Prod. Res. Dev., 13:90-92 (1974) https://doi.org/10.1021/i360049a018
  3. Maddever, W. J. and Chapman, G. M., Modified starch-based biodegradable plastics, Plast. Eng. 45:31-34 (1989)
  4. Choi, Y. J., Lim, S. T. and Im, S. S., Preparation of hydroxypropylated corn starch at high degrees of substitution in aqueous alcohol, and pasting properties of the starch, FOODS AND BIOTECHNOLOGY, 6(2):118-121 (1997)
  5. Hebeish, A., Waly, A., Abdel-Mohdy, F. A. and Aly, A. S., Preparation of starch ethers using the dry process : carbamoylethyl and cyanoethyl starches and their copolymeric products with acrylamide/acrylonitrile mixture, Pigment & Resin Technology, 26(2):88-96 (1997) https://doi.org/10.1108/03699429710161688
  6. Stojanovic, Z., Jeremic, K., Jovanovic, S., Synthesis of carboxymethyl starch, Starch, 52:413-419 (2000) https://doi.org/10.1002/1521-379X(200011)52:11<413::AID-STAR413>3.0.CO;2-B
  7. Hamerstrand, G. E., Hofreiter, B. T. and Mehltretter, C. L., Determination of the extent of reaction between epichlorohydrin and starch, Cereal Chem., 37:519-524 (1960)
  8. Johnson, D. P., Spectrophotometric determination of the hydroxypropyl group in starch ethers, Anal. Chem., 41(6):859-860 (1969) https://doi.org/10.1021/ac60275a024
  9. Kim, B. S. and Lim, S. T., Removal of heavy metal ions from water by cross-linked carboxymethyl corn starch, Carbohydrate Polymers, 39:217-223 (1999) https://doi.org/10.1016/S0144-8617(99)00011-9