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The Introduction of Myo-Inositol in the Synthesis of Rigid Polyurethane-Polyisocyanurate (RPU/PIR) Foams and Its Effect on RPU/PIR Properties.

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Title: The Introduction of Myo-Inositol in the Synthesis of Rigid Polyurethane-Polyisocyanurate (RPU/PIR) Foams and Its Effect on RPU/PIR Properties.
Authors: Liszkowska, Joanna1 (AUTHOR) liszk@ukw.edu.pl, Moraczewski, Krzysztof2 (AUTHOR)
Source: Polymers (20734360). Nov2025, Vol. 17 Issue 22, p2986. 25p.
Subjects: Inositol, Flammability, Foamed materials, Chemical decomposition, Compressive strength, Urethane foam, Absorption, Insulating materials
Abstract: Myo-inositol (cis-1,2,3,5-trans-4,6-cyclohexanehexol) (In) was incorporated into rigid polyurethane/polyisocyanurate (PU/PIR) foams to investigate its effect on the degradation and performance properties of the foam, as well as its structure. The parameters studied included production temperature, processing times, strength, absorbency, and flammability. The foams were aged (degraded) in a special degradation chamber. The test results indicated the effect of myo-inositol on the foam properties. The addition of In caused a reduction in the cell diameter of the foams (measured in both directions). Absorptivity and water absorption decreased. The compressive strength of the foams increased and the flammability decreased (increased retention and decreased burning rate). As a result of foam degradation, the thickness of the degraded foam layer containing 13 wt.% myo-inositol (In13_D) increased by approximately 30% compared to the reference foam (In0_D). [ABSTRACT FROM AUTHOR]
Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The Introduction of Myo-Inositol in the Synthesis of Rigid Polyurethane-Polyisocyanurate (RPU/PIR) Foams and Its Effect on RPU/PIR Properties.
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  Data: <searchLink fieldCode="AR" term="%22Liszkowska%2C+Joanna%22">Liszkowska, Joanna</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liszk@ukw.edu.pl</i><br /><searchLink fieldCode="AR" term="%22Moraczewski%2C+Krzysztof%22">Moraczewski, Krzysztof</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Nov2025, Vol. 17 Issue 22, p2986. 25p.
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  Data: <searchLink fieldCode="DE" term="%22Inositol%22">Inositol</searchLink><br /><searchLink fieldCode="DE" term="%22Flammability%22">Flammability</searchLink><br /><searchLink fieldCode="DE" term="%22Foamed+materials%22">Foamed materials</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+decomposition%22">Chemical decomposition</searchLink><br /><searchLink fieldCode="DE" term="%22Compressive+strength%22">Compressive strength</searchLink><br /><searchLink fieldCode="DE" term="%22Urethane+foam%22">Urethane foam</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption%22">Absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Insulating+materials%22">Insulating materials</searchLink>
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  Data: Myo-inositol (cis-1,2,3,5-trans-4,6-cyclohexanehexol) (In) was incorporated into rigid polyurethane/polyisocyanurate (PU/PIR) foams to investigate its effect on the degradation and performance properties of the foam, as well as its structure. The parameters studied included production temperature, processing times, strength, absorbency, and flammability. The foams were aged (degraded) in a special degradation chamber. The test results indicated the effect of myo-inositol on the foam properties. The addition of In caused a reduction in the cell diameter of the foams (measured in both directions). Absorptivity and water absorption decreased. The compressive strength of the foams increased and the flammability decreased (increased retention and decreased burning rate). As a result of foam degradation, the thickness of the degraded foam layer containing 13 wt.% myo-inositol (In13_D) increased by approximately 30% compared to the reference foam (In0_D). [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.3390/polym17222986
    Languages:
      – Code: eng
        Text: English
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        PageCount: 25
        StartPage: 2986
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      – SubjectFull: Inositol
        Type: general
      – SubjectFull: Flammability
        Type: general
      – SubjectFull: Foamed materials
        Type: general
      – SubjectFull: Chemical decomposition
        Type: general
      – SubjectFull: Compressive strength
        Type: general
      – SubjectFull: Urethane foam
        Type: general
      – SubjectFull: Absorption
        Type: general
      – SubjectFull: Insulating materials
        Type: general
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      – TitleFull: The Introduction of Myo-Inositol in the Synthesis of Rigid Polyurethane-Polyisocyanurate (RPU/PIR) Foams and Its Effect on RPU/PIR Properties.
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            NameFull: Liszkowska, Joanna
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            NameFull: Moraczewski, Krzysztof
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              M: 11
              Text: Nov2025
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              Y: 2025
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