Design of compressible flame retardant grafted porous organic polymer based separator with high fire safety and good electrochemical properties

Mu, Xiaowei; Zhou, Xia; Wang, Weixu; Xiao, Yuling; Liao, Cheng-I; Han, Longfei; Kan, Yongchun; Song, Lei

doi:10.1016/j.cej.2020.126946

Cited by 98 publications

(31 citation statements)

References 46 publications

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“…Cone calorimeter that operates based on oxygen consumption was utilized to study UPR-0, UPR-1, and UPR-2 under real condition. 41,42 Figure 8 reveals the curves of heat release rate (HRR), total heat release (THR) and smoke production rate (SPR), and the critical combustion data are recorded in Table S3 (Supplementary Material). Compared with UPR-0, UPR-1, and UPR-2 exhibit the decreased PHRR of 761.9 and 654.2 kW/m 2 , corresponding to 8.2% and 21.2% reduction, respectively.…”

Section: Flame Retardancementioning

confidence: 99%

Structural design of flame‐retardant phosphatized unsaturated polyester resin

Wang

2021

J of Applied Polymer Sci

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To improve flame-retardant properties of unsaturated polyester resin (UPR), two phosphorus-containing vinyl monomers with different chemical structures were synthesized to replace styrene molecules and then copolymerized with UPR oligomers to prepare flame-retardant phosphatized UPRs. Curing behavior of phosphatized UPRs was investigated by DSC non-isothermal curing curves, deducing the best curing conditions. Cone calorimeter results demonstrated the obvious reduction of heat release rate and smoke production rate by comparing phosphatized UPRs with flammable UPR. TG-IR-MS coupling technique was utilized to reveal thermal degradation and pyrolytic volatiles including aromatic compounds, hydrocarbons, CO, PO 4˙, and so forth, providing more information of smoke toxicity and the gas phase flame-retardant mechanism of phosphatized UPRs. Moreover, the yield, compactness and graphitic degree of char residues of phosphatized UPRs were increased, strengthening the barrier effect to inhibit the permeation of combustion heat and the effusion of pyrolytic volatiles in the condensed phase.

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Section: Flame Retardancementioning

confidence: 99%

Structural design of flame‐retardant phosphatized unsaturated polyester resin

Wang

2021

J of Applied Polymer Sci

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“…While excessive TPP not only partially crosslink the resin, but also enlarge the molecular weight distribution of the thermoplastic components inside, leading the weight loss of the resin at lower temperature. In contrast, the weight loss rate corresponding to T max gradually decreases with the increase of TPP in Figure 7B, which is attributed that the increase of P element leads to a slowdown in the mass reduction rate of the resin system 34,35 …”

Section: Resultsmentioning

confidence: 94%

Preparation and properties of aniline chain‐extended thermoplastic epoxy resin using triphenylphosphine as catalyst

Cheng

Wang

Yang

et al. 2021

Polymers for Advanced Techs

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Thermoplastic resins have been widely used in fiber reinforced polymer composites because of its recyclability and short cycle times. However, the high viscosity after heating and melting restricts its infiltration on the surface of fiber. In this study, a series of thermoplastic epoxy resins were prepared via the chain extension reaction of epoxy groups with liquid aniline using triphenylphosphine (TPP) as catalyst. The relationship between polymer network structure and performance was comprehensively investigated. The solubility tests indicated that excessive aniline or TPP facilitated the crosslinking of resins. Besides, on the premise of thermoplasticity, appropriate TPP could increase the degree of chain extension, molecular weight, and glass transition temperature of resins. Furthermore, the in‐situ polymerization process facilitated infiltration between epoxy resin and the fibers before chain extension reaction. The bending test showed that the flexural performance of the sample with 2 phr of TPP was improved by 38.8%. Therefore, this work provides a feasible method to prepare the thermoplastic epoxy resins and its fiber‐reinforced composites with good mechanical properties.

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“…This result indicates that the degree of graphitization increases with the increase of LbL coating. The Raman results show that the FPUF@GO/OA‐POSS‐6 char residue is stronger and more stable than the pure FPUF 57–62 …”

Section: Resultsmentioning

confidence: 99%

Applications of GO/OA‐POSS Layer‐by‐Layer self‐assembly nanocoating on flame retardancy and smoke suppression of flexible polyurethane foam

Jia

Cheng

et al. 2021

Polymers for Advanced Techs

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Flexible polyurethane foam (FPUF) is extremely flammable and will release a large number of toxic fumes during the combustion process, which brings great safety hazards. Therefore, a binary hybrid nanocoating composed of graphene oxide (GO) and octaamino polyhedral oligomeric silsesquioxane (OA‐POSS) is deposited on the surface of FPUF through layer‐by‐layer self‐assembly technology, with the aim of enhance the flame retardancy and smoke suppression properties of the hybrid FPUF. Compared with pure FPUF, the peak heat release rate, the total heat release, the peak smoke production rate and the total smoke release of FPUF@GO/OA‐POSS‐6 is decreased by 67.3%, 28.3%, 65.03% and 42.9%, indicating the hybrid FPUF excellent flame retardancy and smoke suppression properties. Compared with pure FPUF, the tensile strength of FPUF@GO/OA‐POSS‐6 is increased by 42%, and after three times of compression, the compressive strength increases by 83.17% on average. Facts have proved that the hybrid effect between GO and OA‐POSS enhances the flame retardancy, smoke suppressive effects, tensile strength and compressive strength of FPUF.

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Design of compressible flame retardant grafted porous organic polymer based separator with high fire safety and good electrochemical properties

Cited by 98 publications

References 46 publications

Structural design of flame‐retardant phosphatized unsaturated polyester resin

Structural design of flame‐retardant phosphatized unsaturated polyester resin

Preparation and properties of aniline chain‐extended thermoplastic epoxy resin using triphenylphosphine as catalyst

Applications of GO/OA‐POSS Layer‐by‐Layer self‐assembly nanocoating on flame retardancy and smoke suppression of flexible polyurethane foam

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