Modification of rigid polyurethane foams using polystyrene

• Autorzy: Pielichowski J. , Polaczek J. , Michałowski S.
• Języki publikacji: EN

Abstrakty

EN

Polyurethanes, the major polymer in plastic industry, have recently noticed a significant growth in production connected with intensive research and development. In order to obtain polyurethane rigid foams with enhanced properties new polyurethane foam was prepared based on modified raw materials. First, polyol component was prepared by adding polystyrene solution into the ethyl acetate and intimate mixing to obtain polystyrene dispertion in the polyol matrix. The second step was the foaming process. It was observed that polystyrene takes the form of fibres and the morphology of the foams lies between the polymer blend form and interpenetrating polymer networks. The orientation of polystyrene fibres during foaming process was also investigated. Experiments revealed that addition of the modifier has a big influence on physical and mechanical properties of obtained foams. It was also found that water absorptivity and compressive strength depends on modifier quantity and intensity of mixing.

Słowa kluczowe

EN

polymer composites; polymer blends; polyurethane foams; modification; PUR; semi-IPN

PL

kompozyty polimerowe; blendy polimerowe; pianki poliuretanowe; modyfikacja; domieszka; pół-IPN; PUR; IPN

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2003
• Tom: Vol. 5, nr 4
• Strony: 5--7
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Pielichowski J.

autor

Polaczek J.

autor

Michałowski S.

• Cracow University of Technology, Department of Chemistry and Technology of Polymers, ul. Warszawska 24, 31-155 Kraków, tel./fax [phone],

Bibliografia

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