Influence of Blow-Up Ratio on Properties of Cellulose Packaging Films by Blow-Extrusion Process

Abstract:

The blow-extruded tube-like regeneration cellulose films in different blow-up ratios were prepared by NMMO technology. It was studied the effect of different blow-up ratio on the mechanical and obstructing properties as well as the morphology cross-section of cellulose blown films. It is found that the tensile strength and obstructing performance except elongation at break of films are improved when blow-up ratios increasing. The tensile strength of 1.3, 1.7 blow-up ratio cellulose blown films in longitudinal and transverse is 36.4MPa and 39.9MPa, 13.8MPa and 29.04MPa, respectively. The elongation at a break of 1.3, 1.7 blow-up ratio cellulose blown films in longitudinal and transverse is 105.4% and 72.01%, 42.4% and 25.79%, respectively. The OPF and WVP value of 1.3, 1.7 blow-up ratio cellulose blown films are 13.34×10^-15cm³•cm/(cm²•s•Pa) and 1.36×10^-15cm³•cm/(cm²•s•Pa) , 4.18×10^-13g•cm/cm²•s•Pa and 1.87×10^-13g•cm/cm²•s•Pa, respectively. The SEM picture of cross-section of 1.7 blow-up ratio films displays denser and lower porosity than 1.3 blow-up ratio films. According to the results of study, the films prepared by using NMMO technology would be used in food packaging or other fields as a kind of green packaging material.

• Periodical: Advanced Materials Research (Volume 380)
• Pages: 260-264
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.380.260
• Online since: November 2011
• Authors: Tian Lan, Jian Qing Wang, Zheng Wei Jin
• Keywords: Blow-Up Ratio, Cellulose, NMMO, Packaging Blown Films

References

[1] Z. Persin, K. Stana-Kleinschek, T.J. Foster, J.E.G. van Dam, C.G. Boeriu, P. Navard: Carbohydrate Polymers. Forum Vol. 84(2011), pp.25-28.

DOI: 10.1016/j.carbpol.2010.11.044

[2] D. Klemm, B. Heublein, H.P. Fink and A. Bohn: Angew. Chem. Int. Ed. Forum Vol. 44(2005), pp.3377-3379.

[3] H.P. Fink, P. Weigel and A. Bohn: J. Macromol. Sci-Phys B. Forum Vol. 5-6(1999), p.606.

[4] H.P. Fink, P. Weigel, H.J. Pur and J. Ganste: J. Prog Polym Sci. Forum Vol.26(2001), p.1508.

[5] M.D. Nicholson, E.M. Kajiwara, P.E. DuCharme and J. Tinley Park, U.S. Patent 515,880. (1995).

[6] S. Zikeli, F. Ecker, E. Rauch, K. Renner and A. Schonberg, U.S. Patent 221,174. (1994).

[7] O. Biganska, P. Navard: Cellulose. Forum Vol. 16(2009), p.180.