Non degradable synthetic era leads to the environment pollution. So, various efforts have been done to make products ecofriendly. Many researches have been conducted to make the polymers biodegradable.
This paper provides the brief review on PLA (Polylactic acid) fibres. PLA is the biodegradable natural polymer which has wide applications in textiles. PLA not only as a product is biodegradable it's raw materials available in nature in the form of corn, sugar beets, wheat and other starch rich products are also biodegradable. PLA degradation is due to hydrolytic cleavage of ester linkage included by the water molecules and depolymorisation process. PLA exhibit mechanical properties closer to polyethylene and polystyrene. It is a special type of aliphatic polyster. It can be processed like other thermoplastic materials to filament or can be molded or blown to produce different plastic products. Since it is biodegradable and can be processed to different products with variety of properties, it can be used for a wide range of uses from packaging to surgical sutures.
Globally the trend is to go back to nature and patronize the natural product. Green marketing is the most commonly seen in post industrial affluent societies. Consumers are also much more aware and conscious of what they buy & its real impact. Today we are inscribing alarm about nature so this becomes our duty to nurture it.
Synthetic polymers depend upon the resources of oil, gases for their monomer source. These resources take millions of years to regenerate. Regular uses of these resources have created a problem of energy crisis. Also most of synthetic polymers are not biodegradable. Biodegradable polymers are those which are completely converted by microorganism to carbon dioxide, water or methane.
So, attention is focused on synthetic fibres is based on natural renewable resources. PLA (Polylactic Acid) polymer is one of them. PLA belongs to the family of Poly (α hydroxy) acid. Monomer used for the manufacturing PLA is obtained from renewable crops.
The authors are associated with Sarex Chemicals, Mumbai