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Abstract
This work reports on the preparation of polyurethane–polyisocyanurate (PUR–PIR) foams containing different polyglycerols and layered silicate nanoclays. The rigid polyurethane foams were obtained in a laboratory scale, in a single step method, from a two-component system with a NCO to OH groups ratio equal to two. The reaction mixture consisted of the proper amounts of a commercial oligoetherpolyol, polyglycerol, catalysts, water, nanofiller, and polymeric diphenylmethane diisocyanate. The obtained foams containing 6% of one of three types of montmorillonite (MMT) (Cloisite 30B, Laponite RD, Bentonite) were characterized in terms of their structure, density, brittleness, compressive strength and thermal stability. The nanocomposite foams showed a higher number of cells with a smaller cell size in the presence of MMT, while the foams modified with nanofiller Cloisite 30B presented the best compressive strength and the best fire resistance.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
EUROPEAN POLYMER JOURNAL
no. 48,
edition 10,
pages 1726 - 1733,
ISSN: 0014-3057 - Language:
- English
- Publication year:
- 2012
- Bibliographic description:
- Piszczyk Ł., Strankowski M., Danowska M., Haponiuk J., Gazda M.: Preparation and characterization of rigid polyurethane -polyglycerol nanocomposite foams// EUROPEAN POLYMER JOURNAL. -Vol. 48, iss. 10 (2012), s.1726-1733
- Verified by:
- Gdańsk University of Technology
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