Nanocrystalline cellulose-dispersed AKD emulsion for enhancing the mechanical and multiple barrier properties of surface-sized paper
2016
Yang, Luming | Lu, Sheng | Li, Juanjuan | Zhang, Fengshan | Cha, Ruitao
In this study, we employed nanocrystalline cellulose (NCC) as an efficient dispersant to perpare alkyl ketene dimer (AKD) emulsion. The particle size and zeta potential of AKD/NCC emulsion were measured, which were approximately 5μm and −50mV, respectively. The surface-sized paper possessed multiple barriers properties. The air permeability of surface-sized paper was 0.29μm/Pas and the sizing degree reached 42s when the amount of sizing was 12.58g/m2 with a 96.83% decrease and a 40.00%, increase, respectively. Furthermore, the mechanical properties were optimal when the amount of sizing was about 8g/m2. AKD/NCC emulsion acted as a good reinforcing agent in surface-sized paper.
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