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|a 10.1007/s10965-023-03447-6
|2 doi
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|a (DE-627)OLC213355727X
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|a 35.00$jChemie: Allgemeines
|2 bkl
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|a Chi, Junrui
|e verfasserin
|4 aut
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|a The synergistic flame-retardant behaviors of soybean oil phosphate-based polyols and modified ammonium polyphosphate in polyurethane foam
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|c 2023
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|a Text
|b txt
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|a Computermedien
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|a Online-Ressource
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|a © The Polymer Society, Taipei 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
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|a Abstract Vegetable oils, as raw materials for polyurethane foam, have attracted much attention for being non-toxic, biodegradable, renewable, and so on. However, polyurethane foam burns extremely easily and the vegetable oil grafted phosphorus/silicon flame retardant polyols alone do have insufficient fire-retardant efficiency. Herein, a new bio-based flame retardant (Polyol-P) was successfully synthesized through a ring-opening reaction by using epoxy soybean oil and phenylphosphonic acid as raw materials. Then, Polyol-P was first combined with melamine-formaldehyde resin-microencapsulated ammonium polyphosphate (MAPP) to modify polyurethane foam. The synergistic flame-retardant effects of Polyol-P with MAPP in polyurethane foam have been studied by thermogravimetric analysis, limiting oxygen index test, vertical burning test, and cone calorimeter. TG test results showed the addition of Polyol-P and MAPP promoted the degradation of polyurethane foam composites and the char residue rate at 800 °C of PU-P/15MAPP was significantly enhanced. Flame retardant test results confirmed PU-P/15MAPP exhibited LOI of 25.8% and passed the V-0 rating in the UL-94 test. Cone calorimeter test results indicated the peak heat release rate of PU-P and PU-P/15MAPP reduced from 395.10 kW/$ m^{2} $ to 291.92 kW/$ m^{2} $ and 222.72 kW/$ m^{2} $ compared with PU-0. Furthermore, the ratio of CO and $ CO_{2} $ remarkably reduced and the residual carbon yield of PU-P/15MAPP was the highest, and its value was 20.0 wt%. SEM confirmed that the char residue of PU-P/15MAPP was wrinkled and uneven, which was caused by the release of many volatile gases. FT-IR verified the formed structure of the phosphorous-containing carbonaceous structure. These results suggest that Polyol-P and MAPP have a good synergistic flame retardancy on polyurethane composites and can reduce fire risk.
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|a Soybean oil
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|a Ammonium polyphosphate
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|a Rigid polyurethane foam
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|a Flame retardant
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|a Zhang, Yu
|4 aut
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|a Tu, Fanbin
|4 aut
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|a Sun, Junchen
|4 aut
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|a Zhi, Huizhen
|0 (orcid)0000-0002-8812-1629
|4 aut
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|a Yang, Jinfei
|4 aut
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|i Enthalten in
|t Journal of polymer research
|d Springer Netherlands, 1994
|g 30(2023), 2 vom: 25. Jan.
|h Online-Ressource
|w (DE-627)340872098
|w (DE-600)2065616-6
|w (DE-576)121466671
|x 1572-8935
|7 nnns
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|g volume:30
|g year:2023
|g number:2
|g day:25
|g month:01
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