Computer Integrated Manufacturing of Polyurethane Foams Steered by Measured and Calculated Data in Comparison

Authors

  • Heinrich Horacek Free Consultance, A-4048 Puchenau, Am Wieserain 1, Austria

DOI:

https://doi.org/10.6000/1929-5995.2016.05.04.1

Keywords:

Thermodynamic, Kinetic, foaming model, flame retardants.

Abstract

Polyurethane foams were manufactured under continuous measurements of isocyanate content, temperature, expansion and viscosity. Parallel model calculations were executed based on the driving force of 50kJ/mole heat of reaction of the energy rich isocyanate group and on thermodynamic balances of weight and heat of formation as well as on a kinetic model using a first order reaction for the isocyanate consumption and a relation for the viscosity dependent on conversion and on a viscosity constant. The agreement between continuous measured and calculated data was satisfying. The parameters isocyanate content, temperature, expansion and viscosity controlled and steered the variables of the production plant, like dosage of components, temperature and conveyer speed. The kinetic model was also valid for polyurethane foams with additives, which did not react with components of foam, like flame retardants or pigments. The thermodynamic balances of weight and heat predicted residues and consumed heats by degradation under fire, which correlated with those measured by TGA and DSC. The target was to establish computer integrated manufacturing without continuous measurements but by mere model calculation. This was possible with the knowledge of the first order velocity constant and the viscosity constant.

References

Oertel G. “Polyurethane Handbook” Hanser Verlag, Munich 1985.

Oertel G. Kunststoffhandbuch Vol.7 "Polyurethane“ Carl Hanser Verlag 1993.

Leppkes R. “Polyurethane Werkstoff mit vielen Gesichtern “Verlag Moderne Industrie 2003.

Allport DC, Gilbert DS, Outterside SM, Ed. ”MDI and TDI safety, health and environment, a Source book and practical guide”, John Eiley & Sons Ltd 2003. DOI: https://doi.org/10.1002/0470865687

Uhlig K. Polyurethan Taschenbuch 3. Aufl. Hanser Verlag, München 2006.

Hübner K. “75 Jahre Polyurethane“ Chemie in unserer Zeit Bd. 46 No. 2 2012. DOI: https://doi.org/10.1002/ciuz.201290026

Avar G. “Polyurethane“ Kunststoffe No.10 2006; 206-211. DOI: https://doi.org/10.1007/s00500-005-0472-1

Lechner P. Untersuchung zum Mikrowellen unterstützten Aushärten von vernetzten Harzsystemen auf Polyurethan- und Kohlenwasserstoffbasis. Dissertation der Technischen Universität Darmstadt (30.04.2012).

Klempner D, Frisch KC. “Handbook of Polymer Foams and Foam Technology”, Oxford University Press, New York, N.Y. 1991.

Becker, Braun Kunststoff Handbuch 10 Duroplaste. Carl Hanser Verlag, München 1988; p. 47.

Ashida K. “Polyurethane and Related Foams: Chemistry and Technology”, Boca Raton FL: CRC/Taylor & Francis 2007.

Klempner D, Sendijarevic V. ”Polymeric foams and foam Technology 2nd ed. Hanser Verlag, Munich 2004.

Lee ST, Park CB, Ramesh NS. ”Polymer Foams”, Taylor& Francis (2007) DOI: https://doi.org/10.1201/9781420004625

Consoli S. Software to Manage a Continuous Production of Flexible Polyurethane Foams by Slabstock Technology. J Cell Plastics 1997; 33: 102. DOI: https://doi.org/10.1177/0021955X9703300202

Dörner KH, Meiners HJ, Ludwig HJ PUR Teile kostengünstig fertigen. Stand der Polyurethan RRIM-Technologie. Kunststoffe 2001; 91: 4.

Ehbing H, Zien H, Rathaus R, Frei J. Bayer Intellectual Property GmbH Process and Installation for the production of foam in a continuous foaming process. US 8389590 B2 2004

Bayer Material Science Verfahren und Anlage zur optimierten Herstellung von Schaumstoff in einer kontinuierlichen Blockschaumanlage. DE 102005003341 A1 2006.

Horacek H. Computerunterstütze, kontinuierliche Herstellung von Polyurethan- Blockschaumstoffen. AT 401 115 B 1990.

Naumann J. Utech Asia 99, Fabrication of special Machines for PUR block processing.

Dick CM, Denecker C, Liggat JJ, Mohammed MH, Snape CE. Seeley G, Lindsay Ch, Eling B, Chaffaujou P. Solid state 13C in situ 1HNMR study on the effect of melamine in the thermal degradation of a flexible polyurethane foam. Polym Int 2000; 49: 1177-1182. https://doi.org/10.1002/1097-0126(200010)49:10<1177::AID-PI437>3.0.CO;2-5 DOI: https://doi.org/10.1002/1097-0126(200010)49:10<1177::AID-PI437>3.0.CO;2-5

Herbiet R. Martial LEO-neue Aluminiumhydroxide mit verbesserten Eigenschaften. GAK 12/2008 Jg61 794-800.

Duquesne S, Le Bras M, Bourbigot S, Delobel R, Camino G, Eling B, Lindsay Ch, Roels T, Vezin M. Mechanism of Fire Retardancy of Polyurethanes using Ammonium polyphosphate. Pol Sci 2001; 32: 3262-3274. https://doi.org/10.1002/app.2185 DOI: https://doi.org/10.1002/app.2185

Modesti M, Lorenzetti A, Simioni F, Checchin M. Influence of different flame retardants on fire behaviour of modified PIR-PUR polymers. Polymer Degradation and Stability 2001; 74: 475-479. https://doi.org/10.1016/S0141-3910(01)00171-9 DOI: https://doi.org/10.1016/S0141-3910(01)00171-9

Modesti M, Lorenzetti A. Improvement on fire behaviour of water blown PIR-PUR foams use of an halogen free flame retardant. European Polymer J 2003; 39(2): 263-268. https://doi.org/10.1016/S0014-3057(02)00198-2 DOI: https://doi.org/10.1016/S0014-3057(02)00198-2

Naruse A, Nanno H, Inohara H, Fukami T. Development of All Water-Blown Polyisocyanurate Foam System for Metal faced Continuous Sandwich Panels. J Cell Plast 2002; 38(5): 385-401. https://doi.org/10.1177/0021955X02038005144 DOI: https://doi.org/10.1177/0021955X02038005144

Troitsch J. International Plastics, Flammability Handbook 2nd ed. Hanser Publishing, Munich 1990.

Nagy J, Pusztai E, Wagner Ö. Theoretical Study of the Reaction Mechanism of substituted isocyanates and alcohols. Eur Chem Bull 2013; 2(12): 985-992.

Roberts J, Caserio MC. Basic Principles of Organic Chemistry, W.A. Benjamin Inc. New York 1965; 77.

Physical properties of Polymers, Handbook, Mark JE, Ed. AIP Press, New York 1996.

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Published

2016-01-23

How to Cite

Horacek, H. (2016). Computer Integrated Manufacturing of Polyurethane Foams Steered by Measured and Calculated Data in Comparison. Journal of Research Updates in Polymer Science, 5(4), 118–136. https://doi.org/10.6000/1929-5995.2016.05.04.1

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