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Superior flame reta...
Superior flame retardancy and smoke suppression of epoxy resins with zinc ferrite@polyphosphazene nanocomposites
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- Sun, Xueming (author)
- Henan Univ, Natl & Local Joint Engn Res Ctr Appl Technol Hybri, Kaifeng 475004, Peoples R China.,National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China
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- Li, Zhiwei (author)
- Henan Univ, Natl & Local Joint Engn Res Ctr Appl Technol Hybri, Kaifeng 475004, Peoples R China.,National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China
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- Das, Oisik (author)
- Luleå tekniska universitet,Byggkonstruktion och brand
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- Hedenqvist, Mikael S. (author)
- KTH,Fiber- och polymerteknologi,Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
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Henan Univ, Natl & Local Joint Engn Res Ctr Appl Technol Hybri, Kaifeng 475004, Peoples R China National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, PR China (creator_code:org_t)
- Elsevier BV, 2023
- 2023
- English.
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In: Composites. Part A, Applied science and manufacturing. - : Elsevier BV. - 1359-835X .- 1878-5840. ; 167
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- To impart epoxy resin (EP) with excellent flame retardancy and smoke suppression, we prepared a novel inorgianic-organic nanocomposite flame retardant, zinc ferrite@polyphosphazene (ZF@PZS). The inorganic zinc ferrite plays a role in catalytic carbonization, improving char yields. The organic polyphosphazene helps zinc ferrite improve its compatibility and flame retardancy. Through synergistic effects, ZF@PZS exhibited excellent flame-retardant and smoke-suppression properties in the EP matrix. Compared to neat EP, the limiting oxygen index of the epoxy with 5 phr ZF@PZS increased from 24.6 % to 32.1 % and reached UL94 V-0 rating; the peak heat release rate, peak smoke production rate, and carbon monoxide production of EP composites also decreased by 37 %, 50 %, and 39 %, respectively. Condensed and gas phase analysis indicated that ZF@PZS helps epoxy generate more dense, stable, rigid residues and less pyrolysis volatile products, improving flame retardancy compared to ZF and PZS alone. Besides, the storage modulus of the composite was increased.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- Flame retardancy
- Nanocomposites
- Polymer-matrix composites
- Mechanical testing
- Byggkonstruktion
Publication and Content Type
- ref (subject category)
- art (subject category)
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