Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Slawomir Michalowski"'
Autor:
Arnis Abolins, Ralfs Pomilovskis, Edgars Vanags, Inese Mierina, Slawomir Michalowski, Anda Fridrihsone, Mikelis Kirpluks
Publikováno v:
Materials, Vol 14, Iss 4, p 894 (2021)
A second-generation bio-based feedstock—tall oil fatty acids—was epoxidised via two pathways. Oxirane rings were introduced into the fatty acid carbon backbone using a heterogeneous epoxidation catalyst-ion exchange resin Amberlite IR-120 H or en
Externí odkaz:
https://doaj.org/article/4bdb419a3c1d473d870ac912f3da7036
Autor:
Mikelis Kirpluks, Edgars Vanags, Arnis Abolins, Slawomir Michalowski, Anda Fridrihsone, Ugis Cabulis
Publikováno v:
Materials, Vol 13, Iss 8, p 1985 (2020)
High-quality rigid polyurethane (PU) foam thermal insulation material has been developed solely using bio-polyols synthesized from second-generation bio-based feedstock. High functionality bio-polyols were synthesized from cellulose production side s
Externí odkaz:
https://doaj.org/article/4cc7dffe20fe4621844ea535f352fa05
Autor:
Mateusz Barczewski, Kamila Sałasińska, Wojciech Raś, Aleksander Hejna, Sławomir Michałowski, Paulina Kosmela, Joanna Aniśko, Anna Boczkowska, Marek Szostak
Publikováno v:
Advanced Industrial and Engineering Polymer Research, Vol 6, Iss 2, Pp 181-194 (2023)
The study describes the hybridization of epoxy/flax-cotton (EP/FF) composites containing ammonium polyphosphate (APP) with micrometric expanded vermiculite (VMT) (1–10 wt%). The efficiency of hybridization of flame retarded epoxy/flax-cotton compos
Externí odkaz:
https://doaj.org/article/07428fc31e73474ea991168db5c448fd
Autor:
Maria Kurańska, Elżbieta Malewska, Hubert Ożóg, Julia Sędzimir, Aleksandra Put, Natalia Kowalik, Sławomir Michałowski, Marcin Zemła, Michał Kucała, Aleksander Prociak
Publikováno v:
Polymers, Vol 16, Iss 8, p 1145 (2024)
Natural oils from watermelon, cherry, black currant, grape and pomegranate fruit seeds were applied in the synthesis of biopolyols using the transesterification reaction. In this manuscript, the preparation possibility of open-cell foams from a polyu
Externí odkaz:
https://doaj.org/article/73bd52c11e1d424b96fa9599b60d6341
Publikováno v:
Materials, Vol 16, Iss 22, p 7217 (2023)
In this study, rigid polyurethane foams modified with non-halogenated flame retardant were obtained. The foams were synthesized using two systems containing different blowing agents. In the first one, cyclopentane and water were used as a mixture of
Externí odkaz:
https://doaj.org/article/be7d5ba5d9b14c6eb5e4f7465fe25cac
Publikováno v:
Polymers, Vol 14, Iss 21, p 4743 (2022)
In this work, we report on flexible toluene diisocyanate (TDI)-based polyurethane foams (FPUFs) chemically modified by POSS moieties, i.e., octa (3-hydroxy-3-methylbutyldimethylsiloxy) POSS (OCTA-POSS) and 1,2-propanediolizo-butyl POSS (PHI-POSS). Th
Externí odkaz:
https://doaj.org/article/fb93e2035bec45de82cc5248a295d65a
Publikováno v:
Polymers, Vol 14, Iss 19, p 4086 (2022)
A new type of partially biobased reinforcing filler system was developed in order to be used as a flame retardant for polylactic acid (PLA) and polypropylene (PP)-based composites. The prepared materials intended for injection technique processing we
Externí odkaz:
https://doaj.org/article/d9ef33c0500c4266bf01a08904e7be54
Publikováno v:
Polymers, Vol 14, Iss 1, p 102 (2021)
Rigid polyurethane foams (RPURF) containing a bio-polyol from rapeseed oil and different phosphorus-based flame retardants were obtained. Triethyl phosphate (TEP), dimethyl propane phosphonate (DMPP) and cyclic phosphonates Addforce CT 901 (20 parts
Externí odkaz:
https://doaj.org/article/78b6bb93939344e3a412c1ca6fcffab0
Autor:
Katarzyna Uram, Milena Leszczyńska, Aleksander Prociak, Anna Czajka, Michał Gloc, Michał K. Leszczyński, Sławomir Michałowski, Joanna Ryszkowska
Publikováno v:
Materials, Vol 14, Iss 13, p 3474 (2021)
Rigid polyurethane foams were obtained using two types of renewable raw materials: bio-polyols and a cellulose filler (ARBOCEL® P 4000 X, JRS Rettenmaier, Rosenberg, Germany). A polyurethane system containing 40 wt.% of rapeseed oil-based polyols wa
Externí odkaz:
https://doaj.org/article/ef08065fdd4242f99bef08f3209af668
Autor:
Mateusz Barczewski, Olga Mysiukiewicz, Aleksander Hejna, Radosław Biskup, Joanna Szulc, Sławomir Michałowski, Adam Piasecki, Arkadiusz Kloziński
Publikováno v:
Polymers, Vol 13, Iss 6, p 890 (2021)
In this work, thermally expanded vermiculite (TE-VMT) was surface modified and used as a filler for composites with a polylactide (PLA) matrix. Modification of vermiculite was realized by simultaneous ball milling with the presence of two PLA chain e
Externí odkaz:
https://doaj.org/article/9f7b5e0bd1494d05b6d454667129c7aa