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The designation of highly efficient intrinsic fame-retarding epoxy materials via the regulation of the phosphorus and nitrogen content for the curing agents. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Wang Y, Yuan J, Wang H, Ma L, Lin X, Deng H, Zhu Z. A phosphaphenanthrene‐based derivative for simultaneously improving flame retardant and smoke suppression of epoxy resin composites. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5804] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yadong Wang
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China
| | - Jun Yuan
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China
| | - Hao Wang
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China
| | - Li Ma
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China
| | | | - Hua Deng
- Hubei Three Gorges Laboratory Yichang China
| | - Zongmin Zhu
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China
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Zhang D, Pei M, Wei K, Tan F, Gao C, Bao D, Qin S. Flame-Retardant Properties and Mechanism of Polylactic Acid-Conjugated Flame-Retardant Composites. Front Chem 2022; 10:894112. [PMID: 35646831 PMCID: PMC9130745 DOI: 10.3389/fchem.2022.894112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
The DOPO derivative-conjugated flame retardant 4, 4'-{1'', 4'' - phenylene - bis [amino - (10‴ - oxy -10‴-hydro-9‴-hydrogen-10‴ λ5 -phosphaphenanthrene-10''-yl)-methyl]}-diphenol (P-PPD-Ph) with two hydroxyl groups was synthesized. Polylactic acid conjugated flame-retardant composites with P-PPD-Ph were papered by using a twin-screw extruder. The flame-retardant properties of polylactic acid-conjugated flame-retardant composites were investigated. The flame-retardant properties of PLA-conjugated flame-retardant composites were characterized by the limiting oxygen index (LOI) and the vertical burning test (UL94). The results showed that the PLA-conjugated flame-retardant composites achieved a V-0 rating (UL-94, 3.2 mm) when the conjugated flame retardant was added at 5 wt%, and increase in LOI value from 22.5% to 31.4% relative to composites without added conjugated flame retardant. The flame-retardant mechanism of PLA-conjugated flame-retardant composites were further studied by TG-FTIR, the results showed that the P-PPD-Ph promoted the PLA-conjugated flame-retardant composites to decompose and also released fragments with quenching and dilution, which suggests that P-PPD-Ph for PLA-conjugated flame-retardant composites mainly play a role of the gas-phase flame retardant.
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Affiliation(s)
- Daohai Zhang
- School of Chemical Engineering of Guizhou Minzu University, Guizhou, China
- *Correspondence: Daohai Zhang, ; Chengtao Gao, ; Dongmei Bao, ; Shuhao Qin,
| | - Meng Pei
- School of Chemical Engineering of Guizhou Minzu University, Guizhou, China
| | - Ke Wei
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guizhou, China
| | - Fang Tan
- School of Chemical Engineering of Guizhou Minzu University, Guizhou, China
| | - Chengtao Gao
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guizhou, China
- *Correspondence: Daohai Zhang, ; Chengtao Gao, ; Dongmei Bao, ; Shuhao Qin,
| | - Dongmei Bao
- School of Chemical Engineering of Guizhou Minzu University, Guizhou, China
- *Correspondence: Daohai Zhang, ; Chengtao Gao, ; Dongmei Bao, ; Shuhao Qin,
| | - Shuhao Qin
- School of Chemical Engineering of Guizhou Minzu University, Guizhou, China
- National Engineering Research Center for Compounding and Modification of Polymer Materials, Guizhou, China
- *Correspondence: Daohai Zhang, ; Chengtao Gao, ; Dongmei Bao, ; Shuhao Qin,
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