Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones

In the following study, ground plum stones and silanized ground plum stones were used as natural fillers for novel polyurethane (PUR) composite foams. The impact of 1, 2, and 5 wt.% of fillers on the cellular structure, foaming parameters, and mechanical, thermomechanical, and thermal properties of...

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Main Authors: Karolina Miedzińska, Sylwia Członka, Anna Strąkowska, Krzysztof Strzelec
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/9/4757
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spelling doaj-9615aa5500284cfeb39a5d5a2c1eeed62021-05-05T09:10:52ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-04-01224757475710.3390/ijms22094757Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum StonesKarolina Miedzińska0Sylwia Członka1Anna Strąkowska2Krzysztof Strzelec3Faculty of Chemistry, Institute of Polymer & Dye Technology, Lodz University of Technology, 90-924 Lodz, PolandFaculty of Chemistry, Institute of Polymer & Dye Technology, Lodz University of Technology, 90-924 Lodz, PolandFaculty of Chemistry, Institute of Polymer & Dye Technology, Lodz University of Technology, 90-924 Lodz, PolandFaculty of Chemistry, Institute of Polymer & Dye Technology, Lodz University of Technology, 90-924 Lodz, PolandIn the following study, ground plum stones and silanized ground plum stones were used as natural fillers for novel polyurethane (PUR) composite foams. The impact of 1, 2, and 5 wt.% of fillers on the cellular structure, foaming parameters, and mechanical, thermomechanical, and thermal properties of produced foams were assessed. The results showed that the silanization process leads to acquiring fillers with a smoother surface compared to unmodified filler. The results also showed that the morphology of the obtained materials is affected by the type and content of filler. Moreover, the modified PUR foams showed improved properties. For example, compared with the reference foam (PUR_REF), the foam with the addition of 1 wt.% of unmodified plum filler showed better mechanical properties, such as higher compressive strength (~8% improvement) and better flexural strength (~6% improvement). The addition of silanized plum filler improved the thermal stability and hydrophobic character of PUR foams. This work shows the relationship between the mechanical, thermal, and application properties of the obtained PUR composites depending on the modification of the filler used during synthesis.https://www.mdpi.com/1422-0067/22/9/4757polyurethanesreinforcementplum stonessilanizationmechanical properties
collection DOAJ
language English
format Article
sources DOAJ
author Karolina Miedzińska
Sylwia Członka
Anna Strąkowska
Krzysztof Strzelec
spellingShingle Karolina Miedzińska
Sylwia Członka
Anna Strąkowska
Krzysztof Strzelec
Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones
International Journal of Molecular Sciences
polyurethanes
reinforcement
plum stones
silanization
mechanical properties
author_facet Karolina Miedzińska
Sylwia Członka
Anna Strąkowska
Krzysztof Strzelec
author_sort Karolina Miedzińska
title Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones
title_short Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones
title_full Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones
title_fullStr Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones
title_full_unstemmed Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones
title_sort biobased polyurethane composite foams reinforced with plum stones and silanized plum stones
publisher MDPI AG
series International Journal of Molecular Sciences
issn 1661-6596
1422-0067
publishDate 2021-04-01
description In the following study, ground plum stones and silanized ground plum stones were used as natural fillers for novel polyurethane (PUR) composite foams. The impact of 1, 2, and 5 wt.% of fillers on the cellular structure, foaming parameters, and mechanical, thermomechanical, and thermal properties of produced foams were assessed. The results showed that the silanization process leads to acquiring fillers with a smoother surface compared to unmodified filler. The results also showed that the morphology of the obtained materials is affected by the type and content of filler. Moreover, the modified PUR foams showed improved properties. For example, compared with the reference foam (PUR_REF), the foam with the addition of 1 wt.% of unmodified plum filler showed better mechanical properties, such as higher compressive strength (~8% improvement) and better flexural strength (~6% improvement). The addition of silanized plum filler improved the thermal stability and hydrophobic character of PUR foams. This work shows the relationship between the mechanical, thermal, and application properties of the obtained PUR composites depending on the modification of the filler used during synthesis.
topic polyurethanes
reinforcement
plum stones
silanization
mechanical properties
url https://www.mdpi.com/1422-0067/22/9/4757
work_keys_str_mv AT karolinamiedzinska biobasedpolyurethanecompositefoamsreinforcedwithplumstonesandsilanizedplumstones
AT sylwiaczłonka biobasedpolyurethanecompositefoamsreinforcedwithplumstonesandsilanizedplumstones
AT annastrakowska biobasedpolyurethanecompositefoamsreinforcedwithplumstonesandsilanizedplumstones
AT krzysztofstrzelec biobasedpolyurethanecompositefoamsreinforcedwithplumstonesandsilanizedplumstones
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