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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 10
BKCSDE 31(10)
October 20, 2010 

Effects of Injection Conditions on Dispersibility of TiO2 in Polymerization of Poly(ethylene terephthalate)
Seong Yoon Park, Hak Yong Kim*, Fan Long Jin, Soo Jin Park*
Poly(ethylene terephthalate), Dispersibility, TiO2, Chip, Fiber
In this study, the optimal preparation conditions in the polymerization process of poly(ethylene terephthalate) (PET) were studied in detail. As a result, the dispersibility of TiO2 was significantly improved by the addition of dispersant and steric hinderance additives into TiO2/ethylene glycol (EG) slurry during the esterification step. The addition sequence of TiO2/EG slurry and stirring also affected the dispersibility of TiO2. The SEM results showed that some TiO2 particles were agglomerated in the PET matrix. The full dull (FD) PET chip and fiber were prepared according to the optimal preparation conditions. The FD PET fiber exhibited a better dispersibility than that of the FD PET chip.
2893 - 2896
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