Properties of rigid polyurethane-polyisocyanurate foams modified with the selected fillers

• Published in: Journal of applied polymer science Vol. 115; no. 4; pp. 2460 - 2469
• Main Authors: Czupryński, Bogusław, Paciorek-Sadowska, Joanna, Liszkowska, Joanna
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.02.2010; Wiley
• Subjects: Applied sciences; Borax; Cellular; Composites; Exact sciences and technology; Fillers; Foams; Forms of application and semi-finished materials; heat and thermal properties; physicochemical; Plastic foam; Polymer industry, paints, wood; polyurethane-polyisocyanurate foams; powder fillers; Reproduction; Softening points; Starches; Talcs; Technology of polymers; Thermal properties; Aluminium hydroxide; Closed cell; Talc; heat and thermal properties; Softening point; Mechanical properties; Compressive strength; Experimental study; Cellular plastic; Property formulation relationship; Thermal stability; physicochemical; Thermal properties; polyurethane-polyisocyanurate foams; Morphology; Potato starch; Crosslinked polymer; Flammability; Oside polymer; Chalk; powder fillers; Plastics; Etherurethane polymer
• ISSN: 0021-8995; 1097-4628; 1097-4628
• DOI: 10.1002/app.30937

Rigid polyurethane-polyisocyanurate foams (PUR-PIR) containing from 2.5% to 20% w/w of fillers (talc, aluminum hydroxide, chalk, starch and borax) were the subject of our studies; a reference sample was PUR-PIR foam with no filler added. Apparent density, compressive strength, brittleness, content of closed cells, retention (flammability) and softening point of foams were determined and the products were analyzed by thermogravimetric method. These parameters were the basis to determine effect of type and participation of the fillers studied on physicochemical, heat, and thermal properties of foams.