In the present study, novel mixed additives of Chitosan or Paraloid B-72 combined with nanoparticles (NPs) of Ag, ZnO, or cellulose (NCL) were examined for their effects on the mechanical, optical, and fungal inhibition properties of the papersheets produced. The highest tensile, tear, and burst indices of the papersheets were observed for flax pulp treated with additives of Paraloid B-72 + ZnO NP (1%), Chitosan + ZnO NP (3%), and Chitosan + NCL (3%) at levels of 59.93 N·m/g, 18.45 mN·m2/g, and 6.47 kPa·m2/g, respectively. Chitosan + ZnO NP (1%) added to flax pulp showed the highest fungal mycelial inhibition (FMI) (1.85%) against Aspergillus flavus. Chitosan + Ag NP (1%) exhibited the highest FMI percentage (11.48%) when added to pulp against A. terreus. Pulp treated with Paraloid B-72 + Ag NP (1%) exhibited the highest activity against Stemphylium solani with an FMI value of 3.7%. The results indicate that the technological properties of the papersheets were enhanced with the addition of novel mixtures to the pulp.

Conservation Department Faculty of Archaeology Aswan University Aswan 81528 Egypt

Department of Materials Engineering and Chemistry Faculty of Civil Engineering Czech Technical University Prague Thákurova 7 166 29 Prague 6 Czech Republic

Forestry and Wood Technology Department Faculty of Agriculture Alexandria University Alexandria 21526 Egypt

Laboratory and Research Misr Edfu Pulp Writing and Printing Paper Co Aswan 81656 Egypt

Polymer Department National Research Centre Dokki Giza 12622 Egypt

Restoration department High Institute of Tourism Hotel Management and Restoration Abukir Alexandria 21526 Egypt

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