Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
권호 표지
DOI QR코드

DOI QR Code

Preparation and Properties of Moisture-absorbing Film Impregnated with Polyacrylic Acid Partial Sodium Salt Material

폴리아크릴산 나트륨 염이 함침된 흡수성 고분자 복합 필름의 제조 및 특성 연구

  • Received : 2014.01.10
  • Accepted : 2014.04.12
  • Published : 2014.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

Moisture is a major factor causing the deteriorative physical change, microbial growth, and chemical reaction of the products. In this study, the moisture absorbing composite films have been prepared with moisture absorbing material of polyacrylic acid partial sodium salt (PAPSS) impregnated on LLDPE polymer for the functional packaging applications. The results showed that PAPSS impregnated film illustrated uniformly dispersed PAPSS particles in the LLDPE polymer matrix. The transparency of the PAPSS impregnated film decreased slightly at higher PAPSS concentrations. An increase in the PAPSS content for moisture-absorbing films showed a similar decrease in tensile strength, percent elongation at break, and tear strength. Their values of films impregnated with PAPSS of 0.5, 1, and 2% showed no significant difference. Meanwhile, 4% PAPSS films significantly decreased the values of mechanical properties compared to the films impregnated with different PAPSS levels. Values of the oxygen permeability and water vapor permeability for PAPSS impregnated films decreased significantly with greater PAPSS. The results indicate that 4% PAPSS impregnated in LLDPE films had high affinity of moisture absorbencies compared to the other films. The mathematical equation that best described the moisture sorption isotherm of each film sample was the GAB equation at $25^{\circ}C$. The crystallization and melting temperatures of PAPSS films were influenced by the addition of PAPSS material, but showed good thermal stability.

수분은 제품의 물리적 변화, 미생물 성장, 화학적 반응을 일으켜 품질을 저하시키는 주요 요인이 된다. 본 연구는 기능성 포장 필름으로 응용하기 위하여 수분을 흡착력이 우수한 폴리아크릴산 나트륨 염(polyacrylic acid partial sodium salt, PAPSS)을 선상저밀도폴리에틸렌(LLDPE) 고분자 수지에 함침된 수분 흡착 기능을 가진 복합 필름을 제조하였다. 제조한 수분 흡착 복합 필름은 PAPSS 물질 입자가 LLDPE 고분자 매트릭스에 잘 분포되어 있음을 확인하였다. 또한 PAPSS 첨가량이 증가됨에 따라 필름의 투명도가 저하되었다. 고분자에 첨가되는 PAPSS 물질의 증가는 복합 필름의 인장강도와 신장률 값이 감소됨을 확인할 수 있었으나 각각 0.5, 1, 그리고 2% PAPSS 필름들 간에는 큰 유의적 차이를 보이지 않았다. 반면 4% PAPSS 함침 필름은 다른 농도로 PAPSS 물질이 함침된 필름과 비교하여 인장강도 및 신장률 값의 급격한 감소를 나타냈다. PAPSS 함량의 증가는 필름의 산소 및 수분 투과도 값이 감소됨이 관찰되어 고분자에 PAPSS 첨가는 필름의 가스 차단의 개선을 나타냈다. PAPSS 함침 필름들은 상대적으로 높은 습도 환경 조건에서 우수한 수분 흡착율을 나타내는 것을 확인하였으며, 특히 4% PAPSS 함침 필름이 다른 PAPSS 농도 함침 필름들에 비하여 높은 수분 흡착율을 보였다. $25^{\circ}C$ 조건에서 필름 샘플의 수분 흡착 등온 곡선에 가장 적합하게 묘사되는 최적의 모델 방정식은 GAB 모델로 나타냈다. PAPSS 첨가는 고분자 필름의 결정화 및 녹는 온도 변화에 영향을 보였으나, 열중량 변화에는 큰 차이가 없이 안정된 열적 특성을 나타냈다.

Keywords

References

  1. Rodriguez-Aguilera, R. and Oliveira, J. C., "Review of Design Engineering Methods and Applications of Active and Modified Atmosphere Packaging Systems," Food Eng. Reviews, 1, 66-83 (2009). https://doi.org/10.1007/s12393-009-9001-9
  2. Restuccia, D., Spizzirri, U. G., Parisi, O. I., Cirillo, G., Curcio, M., Iemma, F., Puoci, F., Vinci, G. and Picci, N., "New EU Regulation Aspects and Global Market of Active and Intelligent Packaging for Food Industry Applications," Food Control, 21, 1425-1435(2010). https://doi.org/10.1016/j.foodcont.2010.04.028
  3. Kim, S. W., "Preparation and Characteristics of Biodegradable Polyurethane/clay Nanocomposite Films," Korean Chem. Eng. Res., 51, 382-387(2013). https://doi.org/10.9713/kcer.2013.51.3.382
  4. Campos, C. A., Gerschenson, L. N. and Flores, S. K., "Development of Edible Films and Coatings with Antimicrobial Activity," Food Bioprocess Tech., 4, 849-875(2011). https://doi.org/10.1007/s11947-010-0434-1
  5. Gomes, C., Castell-Perez, M. E., Chimbombi, E., Karagoz, I., Hare, B., Liang, Y. L., Sue, H. J., Sherman, P., Dunne, P. and Wright, A. O., "Quality of Olive Oil Reformulated MRE Entree Packaged in Oxygen-absorbing Film," LWT-Food Sci. Technol., 45, 191-197(2012). https://doi.org/10.1016/j.lwt.2011.09.005
  6. Blanco-Fernandez, B., Rial-Hermida, M. I., Alvarez-Lorenzo, C. and Concheiro, A., "Edible Chitosan/acetylated Monoglyceride Films for Prolonged Release of Vitamin E and Antioxidant Activity," J. Appl. Polym. Sci., 129, 626-635(2013). https://doi.org/10.1002/app.38766
  7. Okubo, M., Kuroki, T. and Noboru, S., "Simultaneous Removal of Odor and Particulate using Plasma-treated Polymer Filters," Thin Solid Films, 519, 6994-6998(2011). https://doi.org/10.1016/j.tsf.2011.01.221
  8. Roca, E., Guillard, V., Guilbert, S. and Gontard, N., "Moisture Migration in a Cereal Composite Food at High Water Activity: Effects of Initial Porosity and Fat Content," J. Cereal Sci., 43, 144-151(2006). https://doi.org/10.1016/j.jcs.2005.08.008
  9. Rout, T. K., Bandyopadhyay, N. and Venugopalan, T., "Polyphosphate Coated Steel Sheet for Superior Corrosion Resistance," Surf. Coat. Tech., 201, 1022-1030(2006). https://doi.org/10.1016/j.surfcoat.2006.01.027
  10. Hwang, K. H., Seo, S. W., Jung E., Chae, H. and Cho, S. M., "Plasma-polymerized n-hexane and its Utilization as Multilayer Moisture-barrier Film with Aluminum Oxide," Korean J. Chem. Eng., 31, 528-531(2014). https://doi.org/10.1007/s11814-013-0278-2
  11. Pourjavadi, A., Soleyman, R. and Barajee, G. R., "Novel Nanoporous Superabsorbent Hydrogel Based on Poly(acrylic acid) Grafted onto Salep: Synthesis and Swelling Behavior," Starch-Starke, 60, 467-475(2008). https://doi.org/10.1002/star.200700706
  12. Millet, F., Nedyalkov, M., Renard, B., Perrin, P., Lafuma, F. and Benattar, J., "Adsorption of Hydrophobically Modified Poly(acrylic acid) Sodium Salt at the Air/water Interface by Combined Surface Tension and X-ray Reflectivity Measurements," Langmuir, 15, 2112-2119(1999). https://doi.org/10.1021/la981481r
  13. Gooch, J. W., Biocompatible Polymeric Materials and Tourniquets for Wounds, Springer Science, Philadelphia, 32-37(2010).
  14. Vogt, B. D., Soles, C. L., Lee, H., Lin, E. K. and Wu, W., "Moisture Absorption into Ultrathin Hydrophilic Polymer Films on Different Substrate Surfaces," Polymer, 46, 1635-1642(2005). https://doi.org/10.1016/j.polymer.2004.11.114
  15. Dorraji, S. S., Golchin, A. and Ahmadi, S., "The Effects of Hydrophilic Polymer and Soil Salinity on Corn Growth in Sandy and Loamy Soils," Clean-Soil Air Water, 38, 584-591(2010).
  16. Lee, W. F. and Yang, L. G., "Superabsorbent Polymeric Materials. XII. Effect of Montmorillonite on Water Absorbency for Poly(sodium acrylate) and Montmorillonite Nanocomposite Superabsorbents," J. Appl. Polym. Sci., 92, 3422-3429(2004). https://doi.org/10.1002/app.20370
  17. ASTM D1746, Annual Book of ASTM, American Society for Testing & Materials, Philadelphia(2009).
  18. ASTM D3985, Annual Book of ASTM, American Society for Testing & Materials, Philadelphia(2002).
  19. ASTM F1249, Annual Book of ASTM, American Society for Testing & Materials, Philadelphia(2005).
  20. ASTM D882, Annual Book of ASTM, American Society for Testing & Materials, Philadelphia(2009).
  21. ASTM E104, Annual Book of ASTM, American Society for Testing & Materials, Philadelphia(2007).
  22. Filippone, G., Dintcheva, N. T., La Mantia, F. P. and Acierno, D., "Using Organoclay to Promote Morphology Refinement and Co-continuity in High Density Polyethylene/polyamide 6 Blends: Effect of Filler Content and Polymer Matrix Composition," Polymer, 51, 3956 (2010). https://doi.org/10.1016/j.polymer.2010.06.044
  23. Sindhu, S. and Valiyaveettil, S., "Design and Synthesis of Optically Transparent Calcium-Incorporated Polymer Complexes," J. Polym. Sci. Pol. Phys., 42, 4459(2004). https://doi.org/10.1002/polb.20301
  24. Pereira de Abreu, D. A., Paseiro Losada, P., Angulo, I. and Cruz, J. M., "Development of New Polyolefin Films with Nanoclays for Application in Food Packaging," Eur. Polym. J., 43, 2229(2007). https://doi.org/10.1016/j.eurpolymj.2007.01.021
  25. Chung, Y., Suh, S. Y. and Chun, B. C., "Comparison of Anti-rust Effect and Mechanical Properties of Celite Film and Polyethylene Film," Clean Tech., 13, 127-133(2007).
  26. Pedroso, A. G. and Rosa, D. S., "Mechanical, Thermal and Morphological Characterization of Recycled LDPE/corn Starch Blends," Carbohyd. Polym., 59, 1-9(2005). https://doi.org/10.1016/j.carbpol.2004.08.018
  27. Hernandez, R. J., Selke, S. and Culter J. D., "Plastics Packaging-Properties, Processing, application, and Regulations," Hanser Gardner Publications, Inc., Cincinnati, 89-134(2010).
  28. Bhattacharya, S. S. and Mandot, A., "Polyamide/Clay Nanocomposites Film, Synthesis and Mechanical Testing," Int. J. Pure Appl. Sci. Technol., 17, 36-44(2013).
  29. Zhao, Y., Su, H., Fang, L. and Tan, T., "Superabsorbent Hydrogels from Poly(aspartic acid) with Salt-, Temperature- and pH-responsiveness Properties," Polymer, 46, 5368-5376(2005). https://doi.org/10.1016/j.polymer.2005.04.015
  30. Zhang, J., Chen, H. and Wang, A., "Study on Superabsorbent Composite. XV. Effects of Ion-exchanged Attapulgite on Water Absorbency of Superabsorbent Composites," Polym. Compos., 28, 208-213(2007). https://doi.org/10.1002/pc.20384
  31. Quyen, D. T. M., Adisak, J. and Rachtanapun, P., "Relationship Between Solubility, Moisture Sorption Isotherms and Morphology of Chitosan/methylcellulose Films with Different Carbendazim Content," J. Agr. Sci., 4, 187-196(2012).
  32. Chowdhury, T. and Das, M., "Moisture Sorption Isotherm and Isosteric Heat of Sorption of Edible Films Made from Blends of Starch, Amylose and Methyl Cellulose," Int. Food Res. J., 19, 1669-1678 (2012).
  33. Cao, X., Lee, L. J., Widya, T. and Macosko, C., "Polyurethane/clay Nanocomposites Foams: Processing, Structure and Properties," Polymer, 46, 775(2005). https://doi.org/10.1016/j.polymer.2004.11.028

Cited by

  1. Comparative Analysis of Thermal Dissipation Properties to Heat Sink of Thermal Conductive Polymer and Aluminum Material vol.28, pp.2, 2015, https://doi.org/10.4313/JKEM.2015.28.2.137
  2. Moisture absorbers for food packaging applications pp.1610-3661, 2018, https://doi.org/10.1007/s10311-018-0810-z