Modifikasi Cationic Starch dengan Nanosilika sebagai Retention and Drainage Agent Pada Pembuatan Kertas Liner Medium

Nanotechnology has attracted the interest of many scientists because changes in physical properties occurred at size 1-100 nm form vast surface area, high mechanical strength, and porosity. Silica is an element with uses various fields such as biotechnology. nanoparticles are silica made on a nanoscale whose use increasing. Nanosilica widely used industry retention drainage aid, usually associated cationic polyelectrolytes starch. The nanosilica paper-making process aims to improve dewatering fine particles fines. Retention one important parameters wet-end stage it affects ability additive be retained fiber sewage treatment system. However, also negative impact rate paper produced, so that often neglected reduces runability This research was conducted determine effect modifying starch retention, rate, properties. In this research, synthesized by using sol gel method, synthesis results indicate presence functional group 46-86 nm. addition, variations 0.5% 1% 0.5%, 1.5% nanosilica. obtained optimum dose for each corresponding dose, namely increase starch, value 90% 445 ml, 89.8% 0% 440 ml. addition testing, sheet testing due modification test system positive