Synthesis of phosphinated polyurethane foams with improved fire behaviour
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| Title: | Synthesis of phosphinated polyurethane foams with improved fire behaviour |
|---|---|
| Authors: | Lorenzetti, A.1, Modesti, M.1 michele.modesti@unipd.it, Gallo, E.2, Schartel, B.2, Besco, S.1, Roso, M.1 |
| Source: | Polymer Degradation & Stability. Nov2012, Vol. 97 Issue 11, p2364-2369. 6p. |
| Subjects: | Urethane foam, Chemical synthesis, Polyurethanes, Fire resistant polymers, Thermal analysis, Calorimetry |
| Abstract: | Abstract: Both alkylphosphinates and inorganic phosphinates (based on sodium, calcium, magnesium or zinc) have been recently proposed as flame retardants for polyesters, polyamides and polyurethane foams as well. The main aim of this work was to compare the flame retardant effectiveness of inorganic (already proofed in PU foams) and organic phosphinates in PU foams which have never been used in polyurethane (PU) foams. The thermal stability in nitrogen and air as well as limiting oxygen index and cone calorimeter behaviour have been studied to assess the effectiveness of such flame retardants in PU foams. The results obtained showed that both inorganic and organic phosphinates are effective in enhancing fire behaviour of PU foams since they improve thermal stability, LOI and fire performance. Cone calorimetry highlighted the flame inhibition action in the gas phase due to the release of phosphorus-containing molecules. The better results obtained for inorganic phosphinate are probably related to the better quality of the char layer developed during burning, but may also be related to the higher phosphorus content of such flame retardant with respect the other ones. It was also verified that both inorganic and organic phosphinate containing N-synergic compound showed a fuel dilution effect, deriving from water and/or ammonia release in the gas phase. [Copyright &y& Elsevier] |
| Copyright of Polymer Degradation & Stability is the property of Elsevier B.V. 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.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 82063505 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Synthesis of phosphinated polyurethane foams with improved fire behaviour – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lorenzetti%2C+A%2E%22">Lorenzetti, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Modesti%2C+M%2E%22">Modesti, M.</searchLink><relatesTo>1</relatesTo><i> michele.modesti@unipd.it</i><br /><searchLink fieldCode="AR" term="%22Gallo%2C+E%2E%22">Gallo, E.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Schartel%2C+B%2E%22">Schartel, B.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Besco%2C+S%2E%22">Besco, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Roso%2C+M%2E%22">Roso, M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymer+Degradation+%26+Stability%22">Polymer Degradation & Stability</searchLink>. Nov2012, Vol. 97 Issue 11, p2364-2369. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Urethane+foam%22">Urethane foam</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+synthesis%22">Chemical synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Polyurethanes%22">Polyurethanes</searchLink><br /><searchLink fieldCode="DE" term="%22Fire+resistant+polymers%22">Fire resistant polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+analysis%22">Thermal analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Calorimetry%22">Calorimetry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Both alkylphosphinates and inorganic phosphinates (based on sodium, calcium, magnesium or zinc) have been recently proposed as flame retardants for polyesters, polyamides and polyurethane foams as well. The main aim of this work was to compare the flame retardant effectiveness of inorganic (already proofed in PU foams) and organic phosphinates in PU foams which have never been used in polyurethane (PU) foams. The thermal stability in nitrogen and air as well as limiting oxygen index and cone calorimeter behaviour have been studied to assess the effectiveness of such flame retardants in PU foams. The results obtained showed that both inorganic and organic phosphinates are effective in enhancing fire behaviour of PU foams since they improve thermal stability, LOI and fire performance. Cone calorimetry highlighted the flame inhibition action in the gas phase due to the release of phosphorus-containing molecules. The better results obtained for inorganic phosphinate are probably related to the better quality of the char layer developed during burning, but may also be related to the higher phosphorus content of such flame retardant with respect the other ones. It was also verified that both inorganic and organic phosphinate containing N-synergic compound showed a fuel dilution effect, deriving from water and/or ammonia release in the gas phase. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymer Degradation & Stability is the property of Elsevier B.V. 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: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.polymdegradstab.2012.07.026 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 2364 Subjects: – SubjectFull: Urethane foam Type: general – SubjectFull: Chemical synthesis Type: general – SubjectFull: Polyurethanes Type: general – SubjectFull: Fire resistant polymers Type: general – SubjectFull: Thermal analysis Type: general – SubjectFull: Calorimetry Type: general Titles: – TitleFull: Synthesis of phosphinated polyurethane foams with improved fire behaviour Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lorenzetti, A. – PersonEntity: Name: NameFull: Modesti, M. – PersonEntity: Name: NameFull: Gallo, E. – PersonEntity: Name: NameFull: Schartel, B. – PersonEntity: Name: NameFull: Besco, S. – PersonEntity: Name: NameFull: Roso, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 01413910 Numbering: – Type: volume Value: 97 – Type: issue Value: 11 Titles: – TitleFull: Polymer Degradation & Stability Type: main |
| ResultId | 1 |
