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Sanna Björkegren sanna.bjorkegren@chalmers.se

Industrial PhD at AkzoNobel. Sanna Björkegren sanna.bjorkegren@chalmers.se. AkzoNobel – a global company. 55 000 people, >80 countries Headquarter in Amsterdam. % of revenue 2011. 38% Western Europe. 7% Europe – emerging countries. 20% North America. 22% Asia and pacific. 3%

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Sanna Björkegren sanna.bjorkegren@chalmers.se

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  1. Industrial PhD at AkzoNobel Sanna Björkegrensanna.bjorkegren@chalmers.se

  2. AkzoNobel – a global company 55 000 people, >80 countries Headquarter in Amsterdam % of revenue 2011 38% Western Europe 7% Europe – emerging countries 20% North America 22% Asia and pacific 3% Rest of the world 10% Latin America

  3. Organization – business areas • Decorative paints • Performance coatings • Automotive & Aerospace Coatings • Marine and Protective Coatings • Powder Coatings • Industrial Coatings • Wood Finishes & Adhesives • Specialty Chemicals • Surface Chemistry • Functional Chemicals • Industrial Chemicals • Pulp & Performance Chemicals

  4. My Industrial PhD project • How to mix oil and water • Silica nanoparticles

  5. OH Si O Si O- O Si OH My PhD project ~20 nm (20x10-9m) Surface area of one gram = 130 m2

  6. My PhD project Hydrophilic Hydrophobic Emulsions Foams

  7. Main persons involved • At PPC: • Anders Törncrona • Michael Persson • Ylva Wildlock • Peter Hell • At Chalmers: • Anders Palmqvist (main supervisor) • Lars Nordstierna (co supervisor) • Krister Holmberg • RomainBordes

  8. Applications • Surface active nanoparticles as stabilizers • for disperse systems • Pickering emulsions • Pharmaceutical applications • Coatings • Personal Care applications • Foams

  9. Aim of the project • To obtain a deeper knowledge of how surface modified silica nanoparticles behave in colloidal and surface chemical contexts • To evaluate the stability of the functionalization of silica and the dynamics of the particle surface • To identify suitable characterization methods that can be used for the study of surface modified silica particles • To evaluate application areas within the field of stabilization of disperse systems

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