Combination of isocyanates with hydroxy-functional polyacrylate dispersion

• Autorzy: Miloslavskaya, V. , Moskalenko, E. , Indeikin, E.
• Języki publikacji: EN

Abstrakty

EN

To prepare polyurethane coatings with high decorative and performance characteristics from 2K waterborne systems one has to find an optimal balance between the ease and the effectiveness of polyisocyanate addition to the polymeric dispersion (with allowance for possible hand mixing). This can be achieved using a mixture of low-viscosity hydrophobic polyisocyanate with hydrophilized isocyanate. The mixture of thereof must have the required rheological properties. To determine the correct polyisocyanate ratio we studied the rheological behavior of the mixtures of ion-modified hydrophilic high-viscosity oligoisocyanate and hydrophobic low-viscosity oligoisocyanate. The ratio of the hydrophilic to the hydrophobic isocyanate in the mixture necessary to provide its compatibility with the waterborne hydroxy-functional acrylate dispersion and to achieve the required performance characteristics of the polyurethane coating was determined.

Słowa kluczowe

PL

reologia; powłoka poliuretanowa

EN

rheology; 2K waterborne systems; hydrophilic high-viscosity oligoisocyanate; hydrophobic low-viscosity oligoisocyanate

• Czasopismo: Farby i Lakiery
• Rocznik: 2014
• Tom: nr 6
• Strony: 3--6
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Miloslavskaya, V.

• YarLI, Russia, 150044, Yaroslavl, pr. Oktyabrya, 87;
• Yaroslavl State Technical University, Russia, 150023, Yaroslavl, Moscovsky pr. 88

autor

Moskalenko, E.

• YarLI, Russia, 150044, Yaroslavl, pr. Oktyabrya, 87

autor

Indeikin, E.

• YarLI, Russia, 150044, Yaroslavl, pr. Oktyabrya, 87
• Yaroslavl State Technical University, Russia, 150023, Yaroslavl, Moscovsky pr. 88

Bibliografia

• 1. Polyurethanes / Ulrich Meyer-Westheus // Moscow.-Paint-Media.-2009
• 2. Polyisocyanates for Waterborne Polyurethane Coatings. Dr. Uwe Wustmann, Congress Papers Volume 2, Nurnberg Congress, April 12-14, 1999
• 3. Ready-made solutions for waterborne coatings / E.A. Timofeeva, T.S. Yerofeevskaya, M.V. Rammo. «Attika» // Lakokrasotsnye Materiały i ich primenenie.-2012- No3
• 4. Polyacrylates and polyisocyanates for polyurethane coatings / M.V. Rammo // Lakokrasotsnye Materiały i ich primenenie-2007.-No9