Generation Of A Novel TiO 2 - Composite – A Feasibility Study
The objective of this work was to explore the feasibility of generating a fiber-latex-TiO 2 -composite material that could be used as an additive in the papermachine wet end. By initially binding a cationic latex and subsequently anionic TiO 2 to the fiber surface and then curing the latex, it was envisioned that the pigment would be strongly retained in a latex film on the fiber surface. This novel additive could be utilized in papermaking operations achieving high TiO 2 retention and substantial cost-savings. Dispersion turbidity and microscopy were used to monitor experiments. Data were generated on the interaction between fiber and cationic latex, and a fiber-latex intermediate and TiO 2 . Retention levels of TiO 2 in the range of the target value were achieved, and stability tests proved the material resistant to normal pH and shear stresses. However, the cured composite proved difficult to redisperse and a different approach for curing must be explored.
School Location:USA - Ohio
Source Type:Master's Thesis
Keywords:paper making titanium dioxide tio 2 latex cationic composite retention aid additive opacity turbidity britt jar fiber surface
Date of Publication:01/01/2002