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Poly(ethylene terephthalate) nanoparticles prepared by CO 2 laser supersonic atomization
Author(s) -
Suzuki Akihiro,
Shima Yoshiaki
Publication year - 2014
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.40909
Subject(s) - supersonic speed , materials science , body orifice , jet (fluid) , laser , composite material , ethylene , laser ablation , nanoparticle , polymer , particle (ecology) , chemical engineering , polymer chemistry , nanotechnology , optics , organic chemistry , chemistry , ecology , physics , engineering , catalysis , biology , thermodynamics , oceanography , geology
Poly(ethylene terephthalate) (PET) particles were prepared by the irradiation of PET fibers with a carbon dioxide (CO 2 ) laser while atomizing them at supersonic velocities. A supersonic jet was generated by blowing air into a vacuum chamber through a fiber injection orifice. The fibers are melted by laser heating and atomized by the supersonic jet at the outlet of the orifice. The PET particles produced by CO 2 laser supersonic atomization conducted at a laser power of 34 W and at a chamber pressure of 10 kPa have an average particle size of 0.619 μm, high circularity, and a smooth surface that is not roughened by laser ablation. The novel CO 2 laser supersonic atomization technique can be used to easily prepare polymeric nanoparticles of various thermoplastic polymers using only CO 2 laser irradiation without the need for solvents and additives. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40909.