Study of the Structure and Oxygen Permeability of Cellulose Packaging Films from NMMO-Solutions

Pei Fang Cheng; Jian Qing Wang; Wen Ming Ren

doi:10.4028/www.scientific.net/AMR.380.148

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 380Study of the Structure and Oxygen Permeability of...

Study of the Structure and Oxygen Permeability of Cellulose Packaging Films from NMMO-Solutions

Abstract:

This paper is concerned with the preparation of cellulose packaging films with high oxygen permeability. The films were prepared from cotton pulp and wood pulp by the cast-wiped method using N-methymorpholine-N-oxide (NMMO) as a solvent. The effects of processing parameters on the structure and performance of cellulose films were also studied. The results show that for optimum processing of the films cotton pulp was the preferred raw material, the optimum pulp concentration in the casting solution was 5%, and the optimum temperature for the coagulation bath was 40°C. Using the above process conditions resulted in packaging films with high oxygen permeability making them suitable for use in packaging fruits and vegetables.