Preperation of PET nanocomposites using reactive compatibilization
- Preperation of PET nanocomposites using reactive compatibilization
- 김보원; 최창남; 이무성; 고문배
- nanocomposites; PET; reactive compatibilization; organosilicate; exfoliation
- Issue Date
- VOL 37, NO 11, 617-622
- Abstract: PET/silicate nanocomposites were prepared using a reactive compatibilization method.Two different compatibilizers with end-functional moieties were used; one with only one hydroxylgroup at a chain end and the other with one hydroxyl group at one chain end and several epoxygroups at another end. The second compatibilizer was effective in exfoliating stearyl amine treatedmontmohllonite, indicating that the existence of epoxy is critical for our purpose. The chemicalreaction between PET and the reactive compatibilizer was characterized using a Fourier transforminfrared spectroscopy and proved to take place during melt mixing. However, the reaction was notcontrolled in an optimum manner due to the excess epoxy content in the compatibilizer. It causedchain scission and crosslinking of PET and the resultant PET nanocomposites were very brittle.Key words : nanocomposites, PET, reactive compatibilizatwn, organosiUcate, exfoliation
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