Natural plastic starch based

Plasticized starch-based composites have also been the subject of an abnndant body of literature, particularly during the last decade, continuing on from the development of composites based on natural fibers. 

Natural fillers used in this study are not water soluble (two of them contain significant amounts of cellulose in their chemical composition) and randomly disperse within the starch plasticized matrix, and appears as a discontinuous phase after composite films drying (as evidenced by the scanning electron microscopy SEM investigation presented below). Therefore, these natural fillers provide more interfacial area within the composite films stmcture. As a result, light diffusion is enhanced, thus generating a reduced transparency property for the composite films. Overall, plasticized starch-based composite films exhibit some relative transparency mainly at low amount values for natural fillers in composite formulations. 

Biodegradable plastics can be based on natural or synthetic resins. Natural biodegradable plastics are based primarily on renewable resources (such as starch) and can be either naturally produced or synthesized from renewable resources. They are coming under polysaccharides (starch, cellulose, lignin, etc.), proteins (gelatine, wool, silk, etc.), lipid (fats and oil), polyesters produced by plant or microorganisms (PHA), polyesters derived... 

Biopolymers are polymers that were produced from renewable natural sources, which are biodegradable, and are not toxic. These can also be produced by biological systems (i.e., microorganisms, plants and animals) or chemically synthesized from biological starting materials (e.g., sugars, starch, natural fats, oils, etc.). These biopolymers are an alternative source to petroleum-based polymers traditional plastics. The biopolyesters have properties similar to traditional polyesters. Starch-based polymers are often... 

Arayapranee W, Na-Ranong N, Rempel GL (2005) Application of rice husk ash as fillers in the natural rubber industry. J Appl Polym Sci 98 34-41 Averous L (2004) Biodegradable multiphase systems based on plasticized starch a review. 

De Carvalho et al. provided a first insight in the preparation and characterization of thermo plasticized starch-dtaohn composites by melt intercalation technique (2001). As films or bag, starch corrld be employed as packaging for fraits and vegetables, snacks, dry products, or as starch based adsorbent pads due to its hygroscopic nature for meat exudatiorr. 

Starch is an abundant, inexpensive, natural raw material which permits the development of products recyclable to atmospheric CO2 when biodegraded or incinerated. These characteristics have excited a renewed interest in starch-based plastics, as testified by an impressive literature in recent years. 

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