Dispersion of Nano TiO2 in Ethylene Glycol and Poly(ethylene terephthalate)

Nano TiO 2 was dispersed in ethylene glycol (EG) by the replacement of dispersion medium from water sol. EG/TiO 2 suspension was well stabilized by the electrostatic repulsive force when pH value of suspension was less than 4.3. In situ polymerization starting from bis(2-hydroxyethyl) terephthalate...

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Bibliographic Details
Published inComposite interfaces Vol. 17; no. 5-7; pp. 559 - 570
Main Authors Hao, Lifei, Konagaya, Shigeji, Yamada, Toshiro, Tada, Kaoru, Takemasa, Jiro, Ito, Katsuya
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.01.2010
Subjects
EG/TIO2 SUSPENSION
IN SITU POLYMERIZATION
NANO TIO2
PET/TIO2 NANOCOMPOSITES
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Summary:Nano TiO 2 was dispersed in ethylene glycol (EG) by the replacement of dispersion medium from water sol. EG/TiO 2 suspension was well stabilized by the electrostatic repulsive force when pH value of suspension was less than 4.3. In situ polymerization starting from bis(2-hydroxyethyl) terephthalate (BHET) and EG/TiO 2 suspension was carried out to prepare a series of poly(ethylene terephthalate) (PET)/TiO 2 nanocomposites. Under highly acidic conditions, 97% particles dispersed in PET matrix had the size less than 100 nm. With the increase of pH value, aggregation occurred and larger size particles appeared. A tensile test showed that Young's modulus of PET was increased by the addition of nano TiO 2
ISSN:0927-6440
1568-5543
DOI:10.1163/092764410X513369