Modified montmorillonite combined with intumescent flame retardants on the flame retardancy and thermal stability properties of unsaturated polyester resins
Corresponding Author
Yuan Yu
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing Tech University, Nanjing, 210009 China
Correspondence
Yuan Yu, College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China.
Email: [email protected]
Search for more papers by this authorZhiquan Chen
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorQingwu Zhang
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorMengwei Jiang
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorZhihao Zhong
College of Chemistry and Chemical Engineering, Anhui University, Heifei, 230601 China
Search for more papers by this authorTingting Chen
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorJuncheng Jiang
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorCorresponding Author
Yuan Yu
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing Tech University, Nanjing, 210009 China
Correspondence
Yuan Yu, College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, China.
Email: [email protected]
Search for more papers by this authorZhiquan Chen
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorQingwu Zhang
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorMengwei Jiang
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorZhihao Zhong
College of Chemistry and Chemical Engineering, Anhui University, Heifei, 230601 China
Search for more papers by this authorTingting Chen
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorJuncheng Jiang
College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009 China
Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing Tech University, Nanjing, 210009 China
Search for more papers by this authorAbstract
Modified montmorillonite-containing phytic acid (PA-MMT) has been prepared by acid treatment and then introduced into unsaturated polyester resin (UPR) with an intumescent flame retardant (IFRs). The flame retardancy and thermal degradation of UPR/IFRs/PA-MMT were evaluated by a limiting oxygen index (LOI) test, a vertical burning test (UL-94), a thermogravimetric analysis (TGA), and a cone calorimeter test (CCT). Besides, the mechanical properties were studied by a universal testing machine. The LOI value of UPR/IFRs/PA-MMT composites was increased to 29.2%. The CCT results indicated that the incorporation of PA-MMT and IFRs significantly improved the combustion behavior of UPR. The results of the mechanical properties indicated that 1.5 wt% loading of PA-MMT in UPR/IFRs showed the highest improvement in flexural strength and tensile strength. The flame-retardant mechanism of PA-MMT/IFRs was examined and discussed based on the results of combustion behavior and char analysis.
REFERENCES
- 1Hou Y, Hu W, Gui Z, Hu Y. Effect of cuprous oxide with different sizes on thermal and combustion behaviors of unsaturated polyester resin. J Hazard Mater. 2017; 334: 39-48.
- 2Bourbigot S, Duquesne S. Fire retardant polymers: recent developments and opportunities. J Mater Chem. 2007; 17(22): 2283-2300.
- 3Bai ZM, Jiang SD, Tang G, Hu Y, Song L, Yuen RKK. Enhanced thermal properties and flame retardancy of unsaturated polyester-based hybrid materials containing phosphorus and silicon. Polym Advan Dent Tech. 2014; 25(2): 223-232.
- 4Kandare E, Kandola BK, Price D, Nazaré S, Horrocks RA. Study of the thermal decomposition of flame-retarded unsaturated polyester resins by thermogravimetric analysis and Py-GC/MS. Polym Degrad Stab. 2008; 93(11): 1996-2006.
- 5Zhang C, Huang JY, Liu SM, Zhao JQ. The synthesis and properties of a reactive flame-retardant unsaturated polyester resin from a phosphorus-containing diacid. Polym Advan Technol. 2011; 22(12): 1768-1777.
- 6Chen ZQ, Jiang MW, Zhang QW, Yu Y, Sun GP, Jiang JC. Synergistic effect of combined dimethyl methylphosphonate with aluminum hydroxide or ammonium polyphosphate retardant systems on the flame retardancy and thermal properties of unsaturated polyester resin. Int J Polym Anal Ch. 2017; 22(6): 509-518.
- 7Oleksy M, Galina H. Unsaturated polyester resin composites containing bentonites modified with silsesquioxanes. Ind Eng Chem Res. 2013; 52(20): 6713-6721.
- 8Cai J, Heng HM, Hu XP, Xu QK, Miao F. A facile method for the preparation of novel fire-retardant layered double hydroxide and its application as nanofiller in UP. Polym Degrad Stab. 2016; 126: 47-57.
- 9Pereira CMC, Herrero M, Labajos FM, Marques AT, Rives V. Preparation and properties of new flame retardant unsaturated polyester nanocomposites based on layered double hydroxides. Polym Degrad Stab. 2009; 94(6): 939-946.
- 10Nguyen QT, Ngo TD, Tran P, Mendis P, Bhattacharyya D. Influences of clay and manufacturing on fire resistance of organoclay/thermoset nanocomposites. Composites Prt A: Appl S. 2015; 74: 26-37.
- 11Shah KJ, Shukla AD, Shah DO, Imae T. Effect of organic modifiers on dispersion of organoclay in polymer nanocomposites to improve mechanical properties. Polymer. 2016; 97: 525-532.
- 12Romanzini D, Silva AA, Soares BG, Zattera AJ, Amico SC. Effect of sonication and clay content on the properties of unsaturated polyester/montmorillonite nanocomposites. J Thermoplast Compos Mater. 2017; 51(2): 187-197.
- 13Liu JC, Zhang YB, Peng SG, et al. Fire property and charring behavior of high impact polystyrene containing expandable graphite and microencapsulated red phosphorus. Polym Degrad Stab. 2015; 121: 261-270.
- 14Lecouvet B, Sclavons M, Bailly C, Bourbigot S. A comprehensive study of the synergistic flame retardant mechanisms of halloysite in intumescent polypropylene. Polym Degrad Stab. 2013; 98(11): 2268-2281.
- 15Tang WF, Gu XY, Jiang Y, et al. J Appl Polym Sci. 2015; 132: 1-7.
- 16Tang WF, Zhang S, Sun J, Li HF, Liu XD, Gu XY. Effects of surface acid-activated kaolinite on the fire performance of polypropylene composite. Thermochim Acta. 2017; 648: 1-12.
- 17Kiliaris P, Papaspyrides CD. Polymer/layered silicate (clay) nanocomposites: an overview of flame retardancy. Prog Polym Sci. 2010; 35(7): 902-958.
- 18Gorrasi G, Tortora M, Vittoria V, Pollet E, Lepoittevin B, Alexandre M. Vapor barrier properties of polycaprolactone montmorillonite nanocomposites: effect of clay dispersion. P Polymer. 2003; 44(8): 2271-2279.
- 19Costes L, Laoutid F, Brohez S, Delvosalle C, Dubois P. Phytic acid–lignin combination: a simple and efficient route for enhancing thermal and flame retardant properties of polylactide. Eur Polym J. 2017; 94: 270-285.
- 20Cui XF, Li Y, Li QF, Jin G, Ding MH, Wang FH. Influence of phytic acid concentration on performance of phytic acid conversion coatings on the AZ91D magnesium alloy. Mater Chem Phys. 2008; 111(2-3): 503-507.
- 21Cui XF, Li QF, Li Y, Wang FH, Jin G, Ding MH. Microstructure and corrosion resistance of phytic acid conversion coatings for magnesium alloy. Appl Surf Sci. 2008; 255(5): 2098-2103.
- 22Chen XJ, Zeng GF, Gao TT, et al. In situ formation of high performance Ni-phytate on Ni-foam for efficient electrochemical water oxidation. Electrochem Commun. 2017; 74: 42-47.
- 23Chen YQ, Zhao S, Liu B, et al. Corrosion-controlling and osteo-compatible Mg ion-integrated phytic acid (Mg-PA) coating on magnesium Substrate for biodegradable implants application. ACS Appl Mater Interfaces. 2014; 6(22): 19531-19543.
- 24Tyagi B, Chudasama CD, Jasra RV. Determination of structural modification in acid activated montmorillonite clay by FT-IR spectroscopy. Acta A. 2006; 64(2): 273-278.
10.1016/j.saa.2005.07.018 Google Scholar
- 25Zhang RF, Shi HW, Liu ZL, Zhang SF, Zhang YQ, Guo SB. Property of anodic coatings obtained in an organic, environmental friendly electrolyte on aluminum alloy 2024-T3. Appl Surf Sci. 2014; 289: 326-331.
- 26Li PP, Jin ZY, Yang J, Jin Y, Xiao D. Highly active 3D-nanoarray-supported oxygen-evolving electrode generated from cobalt-phytate nanoplates. Chem Mater. 2016; 28(1): 153-161.
- 27Huang GB, Gao JR, Li YJ, Han L, Wang X. Functionalizing nano-montmorillonites by modified with intumescent flame retardant: preparation and application in polyurethane. Polym Degrad Stab. 2010; 95(2): 245-253.
- 28Ezquerro CS, Ric GI, Miñana CC, Bermejo JS. Characterization of montmorillonites modified with organic divalent phosphonium cations. Appl Clay Sci. 2015; 111: 1-9.
- 29Yang J, Yu K, Liu C. Chromium immobilization in soil using quaternary ammonium cations modified montmorillonite: characterization and mechanism. J Hazard Mater. 2017; 321: 73-80.
- 30Yan R, Gao X, He W, et al. A simple and convenient method to fabricate new types of phytic acid–metal conversion coatings with excellent anti-corrosion performance on the iron substrate. RSC Adv. 2017; 7(65): 41152-41162.
- 31Razmjooei F, Singh KP, Song MY, Yu JS. Enhanced electrocatalytic activity due to additional phosphorous doping in nitrogen and sulfur-doped graphene: a comprehensive study. Carbon. 2014; 78: 257-267.
- 32Chang WH, Qu B, Liao AD, Zhang SF, Zhang RF, Xiang JH. In vitro biocompatibility and antibacterial behavior of anodic coatings fabricated in an organic phosphate containing solution on Mg–1.0Ca alloys. Surf Coat Technol. 2016; 289: 75-84.
- 33Qiao LP, Lou J, Zhang SF, Qu B, Chang WH, Zhang RF. The entrance mechanism of calcium and phosphorus elements into micro arc oxidation coatings developed on Ti6Al4V alloy. Surf Coat Technol. 2016; 285: 187-196.
- 34Wu K, Song L, Wang ZZ, Hu Y. Microencapsulation of ammonium polyphosphate with PVA-melamine-formaldehyde resin and its flame retardance in polypropylene. Polym Advan Technol. 2008; 19(12): 1914-1921.
- 35Zhang T, Yan HQ, Shen L, et al. Chitosan/phytic acid Polyelectrolyte complex: a green and renewable intumescent flame retardant system for ethylene–vinyl acetate copolymer. Ind Eng Chem Res. 2014; 53(49): 19199-19207.
- 36Enescu D, Frache A, Lavaselli M, Monticelli O, Marino F. Novel phosphorous–nitrogen intumescent flame retardant system. Its effects on flame retardancy and thermal properties of polypropylene. Polym Degrad Stab. 2013; 98(1): 297-305.
- 37Camino G, Costa L, Trossarelli L. Study of the mechanism of intumescence in fire retardant polymers: part I—thermal degradation of ammonium polyphosphate-pentaerythritol mixtures. Polym Degrad Stab. 1984; 6(4): 243-252.
- 38Lim KS, Bee ST, Sin LT, et al. A review of application of ammonium polyphosphate as intumescent flame retardant in thermoplastic composites. Compos Part B Eng. 2016; 84: 155-174.
- 39Duan LJ, Yang HY, Song L, et al. Hyperbranched phosphorus/nitrogen-containing polymer in combination with ammonium polyphosphate as a novel flame retardant system for polypropylene. Polym Degrad Stab. 2016; 134: 179-185.
- 40Oliwa R, Heneczkowski M, Oleksy M, Galina H. Epoxy composites of reduced flammability. Compos Part B Eng. 2016; 95: 1-8.
- 41Pan LL, Li GY, Su YC, Lian JS. Fire retardant mechanism analysis between ammonium polyphosphate and triphenyl phosphate in unsaturated polyester resin. Polym Degrad Stab. 2012; 97(9): 1801-1806.
- 42Cao Y, Wang XL, Zhang WQ, Yin XW, Shi YQ, Wang YZ. Bi-DOPO structure flame retardants with or without reactive group: their effects on thermal stability and flammability of unsaturated polyester. Ind Eng Chem Res. 2017; 56(20): 5913-5924.
- 43Manias E, Touny A, Wu L, Strawhecker K, Lu B, Chung TC. Polypropylene/montmorillonite nanocomposites. Review of the synthetic routes and materials properties. Chem Mater. 2001; 13(10): 3516-3523.
- 44Zhou Y, Pervin F, Biswas MA, Rangari VK, Jeelani S. Fabrication and characterization of montmorillonite clay-filled SC-15 epoxy. Mater Lett. 2006; 60(7): 869-873.
- 45Lewin M. Synergistic and catalytic effects in flame retardancy of polymeric materials—an overview. J Fire Sci. 1999; 17(1): 3-19.
- 46Tang WF, Zhang S, Sun J, Gu XY. Flame retardancy and thermal stability of polypropylene composite containing ammonium sulfamate intercalated kaolinite. Ind Eng Chem Res. 2016; 55(28): 7669-7678.
- 47Xi W, Qian LJ, Chen YJ, Wang JY, Liu XX. Addition flame-retardant behaviors of expandable graphite and [bis(2-hydroxyethyl)amino]-methyl-phosphonic acid dimethyl ester in rigid polyurethane foams. Polym Degrad Stab. 2015; 122: 36-43.
- 48Liang S, Hemberger P, Neisius NM, et al. Elucidating the thermal decomposition of dimethyl methylphosphonate by vacuum ultraviolet (VUV) photoionization: pathways to the PO radical, a key species in flame-retardant mechanisms. Chem A Eur J. 2015; 21(3): 1073-1080.
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