Facile preparation of an efficient flame retardant and its application in ethylene vinyl acetate

Du, Jinze; Li, Jin; Zeng, Hong‐Yan; Feng, Bo; Xu, Sheng; Zhou, Enguo; Shi, Xiaokun; Liu, Lu; Hu, Xi

doi:10.1016/j.clay.2018.11.004

Cited by 41 publications

(12 citation statements)

References 39 publications

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“…Therefore, it is necessary to improve the flame retardancy. Flame retardancy can be achieved by adding flame retardants, e.g., aluminum trihydroxide (ATH) [ 3 ], layered double hydroxides (LDHs) [ 4 ], magnesium hydroxide (MH) [ 5 ], etc., among which MH is an environment-friendly flame retardant because of its decomposition temperature (about 340 °C, being higher than that of aluminum hydroxide), smoke suppressibility, non-toxicity, and wide use in halogen-free polymer materials. However, due to its high interface energy and strong hydrophilicity, the compatibility between MH and polymer matrix is poor, and the mechanical properties of EVA are decreased in accordance with the addition of MH [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Yao

Yin

et al. 2020

Polymers

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In this study, we selected basalt fiber (BF) as a functional filler to improve the mechanical properties of ethylene vinyl acetate (EVA)-based flame retardant materials. Firstly, BF was modified by grafting γ-aminopropyl triethoxysilane (KH550). Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS) were used to comprehensively prove the successful modification of the BF surface. Subsequently, the modified BF was introduced into the EVA/magnesium hydroxide (MH) composites by melt blending. The limiting oxygen index (LOI), UL-94, cone calorimeter test, tensile test, and non-notched impact test were utilized to characterize both the flame retardant properties and mechanical properties of the EVA/MH composites. It was found that the mechanical properties were significantly enhanced without reducing the flame retardant properties of the EVA/MH composites. Notably, the surface treatment with silane is a simple and low-cost method for BF surface modification and the pathway designed in this study can be both practical and effective for polymer performance enhancement.

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Section: Introductionmentioning

confidence: 99%

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Yao

Yin

et al. 2020

Polymers

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“…The thermal decomposition of amorphous AlP broadens the action range of FR and enhances the cooling function of the fire area. Besides, the slope of THR curve could be considered as a representative of the flame spread 29 . Compared with EVA‐B/A, the THR curve of EVA‐B/AlP/A composite had a smaller slope (Figure 8B), indicating a better fire safety had been achieved.…”

Section: Resultsmentioning

confidence: 99%

Aluminum phosphate modified brucite and its flame retardant and smoke suppression performance on ethylene‐vinyl acetate resin

Peng

Zhao

Wang

2020

Polymers for Advanced Techs

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A novel halogen-free flame retardant (FR) consisting of brucite, aluminum phosphate (AlP), and silane coupling agent (B/AlP/A) was prepared via co-precipitation assembly technique. The morphology, chemical compositions, size distribution, and thermal stability of B/AlP/A were investigated. When used in ethylene-vinyl acetate (EVA) resin, the B/AlP/A could significantly enhance the flame retardant and smoke suppression performance of the EVA composites, which is mainly attributed to the AIP. With 50 wt% FR loading, the peak heat release rate (PHRR) of EVA-B/AlP/A (299.2 kW Á m −2) is much lower than that of EVA-B/A (387.4 kW Á m −2). Moreover, B/AlP/A shows an excellent smoke suppression performance. For example, the smoke production rate is 0.017 m 2 Á g −1 that has been decreased by 72.1%, compared with B/A. The improvement arises from the amorphous AlP layer on brucite, which helps to create a firm and porous protective char layers on the burning EVA composites. Meanwhile, better mechanical property could be simultaneously obtained with the large FR amount. The fluffy surface of B/AlP/A has good compatibility with EVA and tangle more polymer chains, enhancing the mechanical properties. In a word, this simple and convenient method could pave the way for developing a more efficient and cost-effective brucite-based FR.

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“…Moreover, nano flame retardants are superior to almost all current flame retardants in terms of improving the physical properties of polymer substrates. Since montmorillonite (MMT) nanoparticles were used to fabricate a flame-retarding PA6 nanocomposite by Toyota Corporation (Japan) in 1976, more and more nano flame retardants have been introduced to prepare high-performance flame-retarding polymers [73], such as graphite oxide (GO) [74,75], layered doubled hydroxides (LDH) [76], carbon nanotubes (CNTs) [77], polyhedral oligosilsesquioxane (POSS) [78], fullerene (C60) [79], etc. The flame-retardant mechanisms of nano flame retardants are very complicated, in which the interaction between nano flame retardant and substrate is the critical factor, thus, the flame-retardant mechanism for different nano flame retardants in different polymers may be different due to various structural features of the polymer matrix and nanoparticles.…”

Section: Nano Flame Retardantsmentioning

confidence: 99%

Flame Retardation of Natural Rubber: Strategy and Recent Progress

et al. 2020

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Natural rubber (NR) as a kind of commercial polymer or engineering elastomer is widely used in tires, dampers, suspension elements, etc., because of its unique overall performance. For some NR products, their work environment is extremely harsh, facing a serious fire safety challenge. Accordingly, it is important and necessary to endow NR with flame retardancy via different strategies. Until now, different methods have been used to improve the flame retardancy of NR, mainly including intrinsic flame retardation through the incorporation of some flame-retarding units into polymer chains and additive-type flame retardation via adding some halogen or halogen-free flame retardants into NR matrix. For them, the synergistic flame-retarding action is usually applied to simultaneously enhance flame retardancy and mechanical properties, in which some synergistic flame retardants such as organo-montmorillonite (OMMT), carbon materials, halloysite nanotube (HNT), etc., are utilized to achieve the above-mentioned aim. The used flame-retarding units in polymer chains for intrinsic flame retardation mainly include phosphorus-containing small molecules, an unsaturated chemical bonds-containing structure, a cross-linking structure, etc.; flame retardants in additive-type flame retardation contain organic and inorganic flame retardants, such as magnesium hydroxide, aluminum hydroxide, ammonium polyphosphate, and so on. Concerning the flame retardation of NR, great progress has been made in the past work. To achieve the comprehensive understanding for the strategy and recent progress in the flame retardation of NR, we thoroughly analyze and discuss the past and current flame-retardant strategies and the obtained progress in the flame-retarding NR field in this review, and a brief prospect for the flame retardation of NR is also presented.

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Facile preparation of an efficient flame retardant and its application in ethylene vinyl acetate

Cited by 41 publications

References 39 publications

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Basalt Fiber Modified Ethylene Vinyl Acetate/Magnesium Hydroxide Composites with Balanced Flame Retardancy and Improved Mechanical Properties

Aluminum phosphate modified brucite and its flame retardant and smoke suppression performance on ethylene‐vinyl acetate resin

Flame Retardation of Natural Rubber: Strategy and Recent Progress

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