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Chemical recycling of PET flakes into yarn
Author(s) -
Upasani Prasad S.,
Jain Ashwin K.,
Save Ninad,
Agarwal Uday S.,
Kelkar Anil K.
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.34503
Subject(s) - polyester , depolymerization , polyethylene terephthalate , materials science , spinning , textile , slurry , polymer , composite material , raw material , polymer science , high density polyethylene , agitator , yarn , melt spinning , rheology , polyethylene , polymer chemistry , organic chemistry , chemistry , viscosity
Polyesters such as polyethylene terephthalate are widely used in textile fibers, films, and packaging of food and beverages. Originally driven by environmental reasons, recycling of postconsumer polyester bottles into textile fibers is now becoming commercially attractive. We studied the chemical recycling wherein part of the virgin raw‐materials during preparation of polyester was replaced by washed post consumer polyester. During the process, the postconsumer polyester undergoes partial depolymerization before repolymerization. Role of reactor‐agitator configuration in achieving the solid‐slurry and solid‐melt mixing, and in depolymerization, was studied. Finally, suitability of the polymer for melt spinning and drawing of polymer into yarn was examined. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011