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Synthesis and thermal studies of flexible polyurethane nanocomposite foams obtained using nanoclay modified with flame retardant compound
Abstract
This work presents thermal studies of nanocomposites based on the flexible polyurethane (PU) matrix and filled using montmorillonite organically modified with organophosphorus flame retardant compound. Flexible PU nanocomposite foams were prepared in the reaction carried out between reactive alcoholic hydroxyl and isocyanate groups with the ratio of NCO to OH groups equal to 1.05. The amount of an organoclay ranging from 3 to 9 vol% was added to the polyol component of the resin before mixing with isocyanate. The apparent density of PU foams was ranging from 0.066 to 0.077 g cm-1. Thermal properties of the flexible PU nanocomposite foams were investigated by thermogravimetry and dynamical mechanical analysis. Glass transition temperatures (Tg) were defined as maximum peak on tand curve. Thermal decomposition was observed at 310–320 C (calculated from the onset of TG curve). Tensile strength of the PU foams was determined using mechanical test. The microstructure of the nanoparticles and the composites was investigated by X-ray diffraction. Finally, it was confirmed that the thermal and mechanical properties of flexible PU nanocomposite depend on the amount of nanoclay.
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- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s10973-014-3878-0
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
no. 118,
edition 2,
pages 901 - 909,
ISSN: 1388-6150 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Piszczyk Ł., Danowska M., Mietlarek-Kropidłowska A., Szyszka M., Strankowski M.: Synthesis and thermal studies of flexible polyurethane nanocomposite foams obtained using nanoclay modified with flame retardant compound// JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. -Vol. 118, iss. 2 (2014), s.901-909
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s10973-014-3878-0
- Verified by:
- Gdańsk University of Technology
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