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Polyester Research Paper

1078 Words5 Pages

Bio-based polyester is derived from natural resources using biotechnology. It includes Poly Lactic acid (PLA) and Poly (trimethylene terephthalate) (PTT).
3.5.1 Polylactic acid (PLA):
Polylactic acid (PLA) is the first melt-processable synthetic fiber produced from renewable resources which combines ecological advantages with excellent performance in textiles. It is aliphatic polyester based on lactic acid (C3H6O3) and produced from the fermentation of agricultural resources. PLA requires 20-50% less fossil resources and has potential to reduce atmospheric CO2levels (Avinc&Khoddami2009; Farrington et al 2005). Currently, Nature Works LLC USA is major supplier of PLA fibers under brand name Ingeo® and others PLA fibers include Lactron® (KaneboGohsen …show more content…

8 Production of Bio-PDO by fermentation route (Source: Kurian 2005)

The PTT have strength, stiffness, toughness and heat resistance of polyester, processing parameters such as low melt and mould temperatures, rapid crystallization, faster cycle time as that of PBT and good resilience and wearability as that of nylon. It also exhibits uniform dye uptake and with selected dyes, colorfastness comparable to nylon. It has excellent UV resistance, Chlorine resistance and low static charge generation (Kurian2005; Wolf et al 2005; Shen2009). Sorona® fibers can be used for various applications such as apparel, outdoor/sport goods, floor coverings and as carpet fibers. (Kurian JV 2005).

3.6 Sustainable Polyester …show more content…

As the polyester is a synthetic fibre, it is generally produced from petroleum resources, which are carbon-intensive non-renewable resource. Polyesters are generally polymers where the monomers are linked to one another by means of ester groups. Some of the naturally occurring polyesters are shellac, cutin, and poly(hydroxybutyrate) (PHB), and synthetic polyesters are poly(ethylene terephthalate) (PET), poly(butylene succinate) (PBS),poly(lactic acid) (PLA). Based on the main chain chemical composition, polyesters are classified as aliphatic, semi-aromatic and aromatic polyesters. Aliphatic polyesters are generally sustainable as they are mostly produced from the biomass feed stocks (Amass et al 1998; Sousa et al 2015). Further, they are bio-degradable materials which can be recycled, disposed, or incinerated with minimum negative impact on the environment. Aromatic polyesters generally possess excellent mechanical, thermal and chemical properties compared to aliphatic and semi-aromatic polyesters and hence they are used in high end application industries like chemical, electronic, aviation and automobile etc. (Okada

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