The influence of blocked acid catalyst amount on polyester / melamine coating properties

• Autorzy: Rumyantseva S. S. , Kudinkina I. A. , Ilyin A. A. , Trofimova L. V.
• Języki publikacji: EN

Abstrakty

EN

Polyester / melamine based paints are widely used in coil coating. The curing time for this type of coatings on the production line is from 30 to 60 s. One of the essential components providing fast curing is an acid catalyst. The purpose of the present work was to study the effect of an acid catalyst amount on the cured coating performance. The investigation was carried out using saturated hydroxyfunctional polyester. Hexa methoxy methyl melamine (HMMM) was used as a curing agent. The weight ratio of polyester to HMMM was 85 : 15. As an acid catalyst p-toluene sulfonic acid (p-TSA) blocked with triethylamine was used. The p-TSA concentration in the formulations was from 0 to 1,1 % wt. A relationship between the acid catalyst concentration and certain coating properties, i.e. glass transition temperature, water resistance, MEK double-rub resistance, flexibility and gloss, was established. The coatings containing 0,3-0,7 % wt p-TSA were demonstrated to have the best performance properties.

Słowa kluczowe

EN

polyester; melamine; coil coating

PL

poliester; melamina; blacha powlekana

• Wydawca: Sieć Badawcza Łukasiewicz – Instytut Inżynierii Materiałów Polimerowych i Barwników
• Czasopismo: Farby i Lakiery
• Rocznik: 2013
• Tom: nr 1
• Strony: 7--11
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Rumyantseva S. S.

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

autor

Kudinkina I. A.

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

autor

Ilyin A. A.

• Yaroslavl State Technical University, Russia, 150023, Yaroslavl, Moscovsky pr. 88

autor

Trofimova L. V.

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

Bibliografia

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• 3. The Chemistry and Application of Amino Cross- linking Agents or Aminoplasts / Ed. by Dr. P. Oldring PhD. - London: John Wiley & Sons, 1999. - v.5 - 458 P
• 4. Tugov I.I., Kostrykina G.I., Chemistry and physics of polymers - M.: Khimia, 1989. - 432 P
• 5. Basarov I. P., Textbooks for Higher Educational Institutions. Special Literature - Ed. 5, repr. - SPb.: Lan, 2010. - 376 P