Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties

In this paper, native cellulose I was subjected to alkaline treatment. As a result, cellulose I was transformed to cellulose II and some nanometric particles were formed. Both polymorphic forms of cellulose were modified with poly(ethylene glycol) (PEG) and then used as fillers for polyurethane. Com...

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Autores principales:	Aleksandra Grząbka-Zasadzińska, Przemysław Bartczak, Sławomir Borysiak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	polymer composites polyurethanes nanocellulose functionalization rigid foam physicochemical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/f97b0d6c67c84d89b8938afefea98968
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spelling	oai:doaj.org-article:f97b0d6c67c84d89b8938afefea989682021-11-11T17:56:05ZHighly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties10.3390/ma142163631996-1944https://doaj.org/article/f97b0d6c67c84d89b8938afefea989682021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6363https://doaj.org/toc/1996-1944In this paper, native cellulose I was subjected to alkaline treatment. As a result, cellulose I was transformed to cellulose II and some nanometric particles were formed. Both polymorphic forms of cellulose were modified with poly(ethylene glycol) (PEG) and then used as fillers for polyurethane. Composites were prepared in a one-step process. Cellulosic fillers were characterized in terms of their chemical (Fourier transformation infrared spectroscopy) and supermolecular structure (X-ray diffraction), as well as their particle size. Investigation of composite polyurethane included measurements of density, characteristic processing times of foam formation, compression strength, dimensional stability, water absorption, and thermal conductivity. Much focus was put on the application aspect of the produced insulation polyurethane foams. It was shown that modification of cellulosic filler with poly(ethylene glycol) has a positive influence on formation of polyurethane composites—if modified filler was used, the values of compression strength and density increased, while water sorption and thermal conductivity decreased. Moreover, it was proven that the introduction of cellulosic fillers into the polyurethane matrix does not deteriorate the strength or thermal properties of the foams, and that composites with such fillers have good application potential.Aleksandra Grząbka-ZasadzińskaPrzemysław BartczakSławomir BorysiakMDPI AGarticlepolymer compositespolyurethanesnanocellulosefunctionalizationrigid foamphysicochemical propertiesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6363, p 6363 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polymer composites polyurethanes nanocellulose functionalization rigid foam physicochemical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	polymer composites polyurethanes nanocellulose functionalization rigid foam physicochemical properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Aleksandra Grząbka-Zasadzińska Przemysław Bartczak Sławomir Borysiak Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties
description	In this paper, native cellulose I was subjected to alkaline treatment. As a result, cellulose I was transformed to cellulose II and some nanometric particles were formed. Both polymorphic forms of cellulose were modified with poly(ethylene glycol) (PEG) and then used as fillers for polyurethane. Composites were prepared in a one-step process. Cellulosic fillers were characterized in terms of their chemical (Fourier transformation infrared spectroscopy) and supermolecular structure (X-ray diffraction), as well as their particle size. Investigation of composite polyurethane included measurements of density, characteristic processing times of foam formation, compression strength, dimensional stability, water absorption, and thermal conductivity. Much focus was put on the application aspect of the produced insulation polyurethane foams. It was shown that modification of cellulosic filler with poly(ethylene glycol) has a positive influence on formation of polyurethane composites—if modified filler was used, the values of compression strength and density increased, while water sorption and thermal conductivity decreased. Moreover, it was proven that the introduction of cellulosic fillers into the polyurethane matrix does not deteriorate the strength or thermal properties of the foams, and that composites with such fillers have good application potential.
format	article
author	Aleksandra Grząbka-Zasadzińska Przemysław Bartczak Sławomir Borysiak
author_facet	Aleksandra Grząbka-Zasadzińska Przemysław Bartczak Sławomir Borysiak
author_sort	Aleksandra Grząbka-Zasadzińska
title	Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties
title_short	Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties
title_full	Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties
title_fullStr	Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties
title_full_unstemmed	Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties
title_sort	highly insulative peg-grafted cellulose polyurethane foams—from synthesis to application properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f97b0d6c67c84d89b8938afefea98968
work_keys_str_mv	AT aleksandragrzabkazasadzinska highlyinsulativepeggraftedcellulosepolyurethanefoamsfromsynthesistoapplicationproperties AT przemysławbartczak highlyinsulativepeggraftedcellulosepolyurethanefoamsfromsynthesistoapplicationproperties AT sławomirborysiak highlyinsulativepeggraftedcellulosepolyurethanefoamsfromsynthesistoapplicationproperties
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Highly Insulative PEG-Grafted Cellulose Polyurethane Foams—From Synthesis to Application Properties

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