Abstract
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 TiO2 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.
Highlights
There are progresses of biodegradable plastics that can decrease the municipal wastes and this growth indirectly will prevent the world become waste disposal
The addition of microcrystalline cellulose in Linear Low Density Polyethylene (LLDPE) films was productive by blown extrusion
This inefficiency is due to the hydrophilic nature of cellulose that is not compatible to hydrophobic nature of synthetic polymers that result in weakness of interfacial adhesion
Summary
There are progresses of biodegradable plastics that can decrease the municipal wastes and this growth indirectly will prevent the world become waste disposal. The blending of biodegradable polymer which is starch with inert polymers such as polyethylene has received considerable attention because of the probable application in the waste disposal of plastics [1]. Chief application of plastics is in packaging and this condition may contribute to serious environmental complications. Synthetic plastics such as polyethylene and polypropylene have a very low water Vapour transmission rate and most importantly, so that, they are absolutely non-biodegradable, and lead to environmental pollution, which pose serious environmental problems. There has been an increased attention in enlightening the biodegradability of synthetic plastics by blending them with low price natural biopolymers
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