Advancement in Packaging Film Using Microcrystalline Cellulose and TiOsub2/sub

摘要

The objective of this study is to study the effects of the addition of TiO2 and microcrystalline cellulose on properties of packaging films based on biodegradable polymer blends. Biocompositions of Linear Low Density Polyethylene (LLDPE) - Microcrystalline Cellulose were prepared by Twin Screw Extrusion using of maleic anhydride grafted polyethylene as compatibilizer and TiOsub2/sub as pro-oxidative additives. Polyethylene wax was used as processing aid to ease the blown film process. The presence of large amount of microcrystalline cellulose contents had a divergent effect on the tensile properties of Cellulose-PE blend. However, the addition of compatibilizer to the blends improved the interfacial bonding between the two materials. High amount of cellulose also was found to upsurge the rate of biodegradability of Cellulose-PE composite films. The burst strength and soil burry test of this composite film was also improved. It suggest that this film can be used for packaging film which can degraded up to certain extend.