Wear resistance of nanoparticle coatings on paperboard

摘要

1. LFS-deposited TiO_2 and SiO_2 nanoparticles create superhydro-phobic and hydrophilic paper surface, 2. Abrasive damage of surface structure influences only slightly the wettability of superhydrophobic TiO_2 and hydrophilic SiO_2 coatings, 3. A more severe abrasive action will remove some of the nanoparticle coating, but the hydrophobic/ hydrophilic properties of the surface are maintained, 4. SiO_2 nanoparticle coated surface is more resistant to abrasion than the TiO_2 coating, which indicates a stronger inter-particle and particle to surface adhesion of the former, 5. Investigation of nanoparticle loss from the paper surface is challenging, due to the small total mass of nanoparticles in the coating, mixed together with pigment particles and fiber debris removed during abrasion experiment.