Browse > Article
http://dx.doi.org/10.7584/ktappi.2015.47.5.112

Evaluation of Water Resistance Properties of Pulp Mold depending on the Types of Raw Materials and the Additives  

Sung, Yong Joo (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Kim, Hyung Min (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Kim, Dong Sung (Dept. of Biobased Materials, College of Agriculture and Life Science, Chungnam Natl. Univ.)
Lee, Ji Young (Dept. of Environmental Materials Science/IALS, Gyeongsang National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.47, no.5, 2015 , pp. 112-119 More about this Journal
Abstract
The pulp mold attract the increasing concern as recyclable, biodegradable, and eco-friendly packaging materials. In order to broaden the applicability of the pulp mold as substitutes of the expanded styrofoam, the properties of various raw materials for the pulp mold were evaluated and the way for improving water resistance properties of the pulp mold were also tested by applying some additives. The higher value in the fines contents and in the water retention value were shown for the TMP (thermomechanical pulp), which resulted in the bulkier pulp mold with the higher moisture absorption property. In case of water resistance properties, the pulp mold made of white ledger stock showed the higher value in water contact angle and very slow water absorption rate. The addition of oil palm EFB fiber showed the improvement in the water resistance of the pulp mold made of UBKP. The effects of various additives on the improvement in the water resistance properties of the pulp mold were tested by using AKD, PVAm, epoxy resin. The application of AKD leaded to the higher increase in the water resistance. The results in this study showed the effects of AKD for the pulp mold could be improved and optimized by the application with fixing agent and by the ageing treatment after production.
Keywords
Pulp mold; moisture absorption; bulk; water resistance; AKD;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Kim, G. J., Kim, C. H., Lee, Y. M., Song, D. B., Shin, T. G., Kim, J. O., and Park, C. Y., Utilization of wastepaper fibers for development of environment-friendly shock-absorbing materials, Journal of Korea TAPPI 38(2):52-60 (2006).
2 Yi, J. H., Kim, I. H., Choe, C. H., Seo, Y. B., and Song, K. B., Chitosan-coated packaging papers for storage of agricultural products, Journal of the Korean society of Agricultural Chemistry and Biotechnology 41(6):442-446 (1998).
3 Kang, J. H. and Lim, H. A., Development of higher functional coating agents for pulp mold (I) - Investigation of functions synthetic and natural coating agents, Journal of Korea TAPPI 34(4):37-43 (2002).
4 Park, I. S., Kim, J. N., Kim, D. Y., and Lee, Y. S., Effects of mixing ratio of ONP and OCC on physical properties of pulp molds for cushion packaging materials, Journal of Korea TAPPI 40(1):47-54 (2008).
5 Jung, S. Y., Lee, Y. W., Lee, C. H., Park, Y. G., and Seo, Y. B., Evaluation of stability and biodegradability of red algae food packaging materials, Proceeding of Spring Conference of the Korea Technical Association of the Pulp and Paper Industry, pp. 165-171 (2012).
6 Sung, Y. J., Ryu, J. Y., Kim, H. J., Kim, T. K., and Song, B. K., Improvement of drainage at wet pulp mold process, Journal of Korea TAPPI 36(3):52-59 (2004).
7 Kim, H. J., Seo, J. H., and Ryu, J. Y., The application of functional additives for the improvement of dewatering ability to pulp mold, Applied Chemistry 8(1):279-282 (2004).
8 Sung, Y. J., Ryu, J. Y., Kim, H. J., Kim, T. K., and Song, B. K., Optimization of wet pulp mold process and reduction of drying energy, Journal of Korea TAPPI 36(3):83-90 (2004).
9 Kim, D. S., Sung, Y. J., Kim, C. H., and Kim, S. B., Changes in the water absorption properties of pulp mold manufactured with oil palm EFB by surface treatments, Journal of Korea TAPPI 47(1):75-83 (2015).
10 Jo, J. Y., Min, C. K., and Shin, J. S., Manufacture of water-resistant corrugated board boxes for agricultural products in the cold chain system (II) - Application methods of chemicals for improving water and moisture resistance of corrugated boards, Journal of Korea TAPPI 36(2):60-69 (2004).