Investigation of resistance and optical properties of the papers treated with cellulose nanocrystals and zinc oxide nanoparticles

Document Type : Research Paper

Authors

1 M.Sc. student, Wood and paper science department, Faculty of natural resources, Sari agricultural sciences and natural resource university Sari, Iran

2 Professor, Wood and paper science department, Faculty of natural resources, Sari agricultural sciences and natural resource university Sari, Iran

3 Assistant Prof., Wood and paper science department, Faculty of natural resources, Sari agricultural sciences and natural resource university Sari, Iran

Abstract

Abstract
In this study, the effect of various treatments with cellulose nanocrystals (NCC) and zinc oxide nanoparticles (ZnO) on the resistance and optical properties of the handmade papers were investigated. The nanomaterials with a specific condition (NCC 4%, 6%, and ZnO 3%) were added to the paper pulp during the papermaking. Cationic polyacrylamide used as a nanomaterials preservative in the papermaking process. The experiments results showed that the resistance properties (tensile index, tear index and burst index) of the treated papers are increased and the effect of NCC% increment was clearer in the enhancement of the resistance properties. Also, the brightness of the treated papers was increased after nanomaterials loading and the effect of ZnO was clearer because of its structural property. The opacity of the treated papers was increased at the binary composition of nanomaterials in comparison with the control sample, but in single addition of the nanomaterials to the papers, ZnO had better function than NCC.

Keywords

Main Subjects


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