Skip to Main content Skip to Navigation
Theses

In situ synthesis of titanium dioxide by hydrolysis-condensation reactions in molten polypropylene matrix

Abstract : Polypropylene/Titanium dioxide (PP/TiO2) nanocomposites were prepared from an original method based on the hydrolysis-condensation reactions of titanium alkoxide inorganic precursor premixed with PP under molten conditions. The synthesis is based on sol-gel method without solvent through extrusion process. A second treatment in hot water was applied in order to improve final conversion degree. First, hydrolysis-condensation reactions of titanium n-butoxide precursor were studied in model medium. Based on a kinetic equation carried out in the model medium, then the synthesis of titanium dioxide particles was transposed and modelled in polypropylene medium with high molar mass. Chemical, structural and morphological analyses highlight the in situ synthesis of bactericides PP/TiO2 nanocomposites andpresenting a particular morphological and rheological behaviour.
Document type :
Theses
Complete list of metadatas

Cited literature [185 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00809476
Contributor : Abes Star :  Contact
Submitted on : Tuesday, April 9, 2013 - 2:02:15 PM
Last modification on : Wednesday, September 16, 2020 - 3:50:46 AM
Long-term archiving on: : Wednesday, July 10, 2013 - 6:45:09 AM

File

TH2010_Bahloul_Walidl.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00809476, version 1

Citation

Walid Bahloul. In situ synthesis of titanium dioxide by hydrolysis-condensation reactions in molten polypropylene matrix. Other. Université Claude Bernard - Lyon I, 2010. English. ⟨NNT : 2010LYO10124⟩. ⟨tel-00809476⟩

Share

Metrics

Record views

846

Files downloads

4570