Zagospodarowanie odpadów sztywnych pianek poliuratenowo-poliizocyjanuranowych w wyniku ich alkoholizy połączonej z aminolizą

B. Czupryński; J. Paciorek-Sadowska; J. Liszkowska; J. Czupryńska

Published : 2022-09-18

Vol. 47 No. 2 (2002)

The utilization of rigid polyurethane-polyisocyanurate foams by the combined alcoholysis-aminolysis process

B. Czupryński J. Paciorek-Sadowska J. Liszkowska J. Czupryńska

Abstract

Rigid PUR-PIR foams prepared (i) with addition or (ii) with no addition of a solid fraction of rye slops or potato slops were both alcoholyzed and aminolyzed. The alcoholyzate was used to replace the original polyether polyol, 0.05-0.20 of chemical equivalent, which is used to prepare foams (Table 2). Three series of foams were prepared, varying in the amount of the alcoholyzate added. Apparent density, compression strength, brittleness, oxygen index, combustion residue, stability of linear dimensions, volume change (in 48 h at 120degreesC), and softening point (Table 3, Figs. 2-4) were determined. As the proportion of the alcoholyzate was raised from 0.05 to 0.2 chemical equivalent, the compression strength of the mode (ii) foams (foams 1.1-1.4) rose, whereas brittleness, oxygen index and softening point remained practically unaffected as compared with control foam (foam 1.0 with no alcoholyzate added). In the mode (i) foams (solid fraction of rye slops added) prepared with the alcoholyzate added (foams 2.1-2.4), the compression strength rose but slightly (from 208.7 kPa in control foam to 229.0 kPa in foam containing 0.2 chem. equiv. of alcoholyzate) and the brittleness and softening point fell. The foams containing the alcoholyzate and the solid fraction of potato slops (foams 3.1-3.4) exhibited not only lower brittleness and reduced softening points but also lower compression strengths. In each foam examined, the oxygen index and combustion residue remained practically unaffected as compared with controls. IR spectra confirmed the presence of the urethane and isocyanurate groups in the foams prepared.

Keywords

sztywne pianki poliuretanowo-poliizocyjanuranowe ; recykling ; alkoholiza z aminolizą ; utylizacja wywaru żytniego i ziemniaczanego ; fizyczne właściwości pianek ; mechaniczne właściwości pianek rigid polyurethane-polyisocyanurate foams ; recycling ; alcoholysis and aminolysis ; utilization of rye slops and potato

Similar Articles

K. Sałasińska, A. Osica, J. Ryszkowska, The use of tree leaves as reinforcement in composites with recycled PE-HD matrix , Polimery: Vol. 57 No. 9 (2012)
R. Jeziórska, Recycling of multilayer films by reactive extrusion , Polimery: Vol. 48 No. 2 (2003)
G. K. Jana, R. N. Mahaling, T. Rath, A. Kozłowska, M. Kozłowski, Ch.K. Das, Mechano-chemical recycling of sulfur cured natural rubber , Polimery: Vol. 52 No. 2 (2007)
E. Foldes, B. Pukanszky, Plastic waste management and environmentally degradable plastics in Hungary , Polimery: Vol. 47 No. 7-8 (2002)
T. Pokropski, A. Balas, Epoxy resins and polyurethanes — mutual modifying influence. Part II. Interpenetrating polymer networks (IPN) , Polimery: Vol. 48 No. 9 (2003)
A. Piegat, M. El Fray, Poly(ethylene terephthalate) modification with the monomer from renewable resources , Polimery: Vol. 52 No. 11-12 (2007)
Dariusz Krajewski, Mariusz Oleksy, Rafał Oliwa, Grzegorz Masłowski, Kamil Filik, Grzegorz Karnas, Effect of conductive carbon black on the lightning strikes resistance of carbon fiber-reinforced epoxy resin , Polimery: Vol. 69 No. 7-8 (2024)
R. Jeziórska, A. Szadkowska, M. Studziński, Compatibilization of polyolefins waste based blends by reactive modifiers with anhydride or oxazoline functional groups , Polimery: Vol. 52 No. 5 (2007)
A. Białkowska, Z. Wirpsza, Rigid segments of condensation polyetherurethanes , Polimery: Vol. 47 No. 10 (2002)
W. Fabianowski, B. Polak, M. Lewandowska-Szumieł, Polymers for bone reconstruction - evaluation of chosen polimeric substrates in osteoblasts in vitro culture , Polimery: Vol. 49 No. 7-8 (2004)

<< < 27 28 29 30 31 32 33 34 35 36 > >>

You may also start an advanced similarity search for this article.

Details

Statistics

Authors

Download files

PDF (Język Polski)

Zasady cytowania

Czupryński, B., Paciorek-Sadowska, J., Liszkowska, J., & Czupryńska, J. (2022). The utilization of rigid polyurethane-polyisocyanurate foams by the combined alcoholysis-aminolysis process. Polimery, 47(2), 104–109. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/1950

Citing articles via

Statistics

Total abstract views : 0

PDF Downloads : 0

B. Czupryński polimery@ichp.pl

Affiliation
Akademia Bydgoska Kazimierza Wielkiego, Instytut Techniki, Chodkiewicza 30, 85065 Bydgoszcz, Poland

J. Paciorek-Sadowska

J. Liszkowska

J. Czupryńska