Flammability and thermal degradation behavior of ethylene‐vinyl acetate/layered double hydroxides/zinc borate composites

Qian, Yi; Zhou, Shaojie; Chen, Xilei

doi:10.1002/pat.3895

Cited by 30 publications

(14 citation statements)

References 39 publications

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“…According to literatures, the special lamellar structure and chemical composition of HTC will act as a shield and heat acceptor . Except the common contribution on flame retardancy from HTC , the special mechanism of NO 3 − ‐HTC and BTP‐HTC can be summarized to two reasons. One was incombustible gas release such as NH 3 /N 2 from NO 3 − ‐HTC and S x O y from BTP‐HTC, which dilute O 2 concentration.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of hydrotalcite containing N/P/S and its ternary synergistic efficiency on thermostability and fire resistance of ethylene vinyl acetate (EVA)

Sun

Guo

et al. 2018

Vinyl Additive Technology

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Nitrate intercalated hydrotalcite (NO 3 − -HTC) was first prepared as precursor; a schiff base derivative containing N, P, and S was synthesized and its structure was characterized. Later the schiff base derivative was used as intercalation to replace NO 3 − in hydrotalcite. The final product was schiff base derivative intercalated hydrotalcite, which was named as benzaldehyde-taurine-hypophosphorous (BTP)-HTC. The results showed both NO 3 − -HTC and BTP-HTC can effectively improve the flame retardant and thermostability of ethylene vinyl acetate (EVA). In cone calorimeter test, the peak heat release rate of EVA was 1421.2 kW/m 2 and reduced sharply to 746.1/584.5 kW/m 2 for 20 wt% NO 3 − -HTC/ BTP-HTC adding, respectively. At same time, the total heat release was also decreased from 120.6 MJ/m 2 for EVA to 81.0/70.0 MJ/m 2 , respectively. Morphology observation and composition analysis by scanning electron microscopy (SEM)/X-ray spectroscopy (EDS) documented the residue left after combustion of EVA/NO 3 − -HTC was just ash containing Mg and Al; but for EVA/BTP-HTC, coherent char layer containing Mg, Al, and P was left. Thermogravimetric analysis indicated that the thermal degradation of EVA was prolonged by either NO 3 − -HTC or BTP-HTC; and char content was kept to 8.6% and 11.0%, respectively. The whole results documented either NO 3 − -HTC or BTP-HTC improved the combustion behavior and thermostability of EVA, and BTP-HTC showed excellent effect. J. VINYL ADDIT. TECHNOL., 25:255-261, 2019.

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Section: Resultsmentioning

confidence: 99%

Fabrication of hydrotalcite containing N/P/S and its ternary synergistic efficiency on thermostability and fire resistance of ethylene vinyl acetate (EVA)

Sun

Guo

et al. 2018

Vinyl Additive Technology

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“…LDHs can be directly used as ame retardant additives because of their unique chemical properties and layered structures [170][171][172][173][174][175][176][177]. For example, exible polyurethane foam with samples containing 10% ame retardant, the LOI increased from 20.8 to 29.0, the UL-94 rating increased from no to V-0, and the pHRR decreased from 1090 to 284 kW/m 2 , respectively.…”

Section: Silicon-containing Compoundsmentioning

confidence: 99%

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Hong

Chen

2019

Advances in Polymer Technology

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Polymer materials are ubiquitous in daily life. While polymers are often convenient and helpful, their properties often obscure the fire hazards they may pose. Therefore, it is of great significance in terms of safety to study the flame retardant properties of polymers while still maintaining their optimal performance. Current literature shows that although traditional flame retardants can satisfy the requirements of polymer flame retardancy, due to increases in product requirements in industry, including requirements for durability, mechanical properties, and environmental friendliness, it is imperative to develop a new generation of flame retardants. In recent years, the preparation of modified two-dimensional nanomaterials as flame retardants has attracted wide attention in the field. Due to their unique layered structures, two-dimensional nanomaterials can generally improve the mechanical properties of polymers via uniform dispersion, and they can form effective physical barriers in a matrix to improve the thermal stability of polymers. For polymer applications in specialized fields, different two-dimensional nanomaterials have potential conductivity, high thermal conductivity, catalytic activity, and antiultraviolet abilities, which can meet the flame retardant requirements of polymers and allow their use in specific applications. In this review, the current research status of two-dimensional nanomaterials as flame retardants is discussed, as well as a mechanism of how they can be applied for reducing the flammability of polymers.

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“…Polymer/inorganic nanocomposites which combine the advantages of a polymeric matrix with the specific characteristics of the inorganic nanoparticles have attracted widespread attention. The incorporation of nanoparticles makes the nanocomposites obtain a series of specific properties, such as mechanical, optical, magnetic, thermal, and flame retardant properties . Antimony oxide (Sb 2 O 3 ) nanoparticles are one of the most important metallic oxides of antimony and are widely used in numerous industries including chemical, sensing, and semiconducting fields .…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of nano‐Sb₂O₃/poly(butylene terephthalate) composite powders based on high‐energy ball milling

Yang

Niu

et al. 2018

Vinyl Additive Technology

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In this work, a kind of composite powders with good dispersion and distribution of nano-Sb 2 O 3 particles in poly(butylene terephthalate) (PBT) was prepared by the high-energy ball milling (HEBM). The effects of the milling time on the structure, morphology, particle size distribution, and thermal behavior of the nano-Sb 2 O 3 /PBT composite powders were characterized by Fourier transform infrared spectroscopy, scanning electron microscope, laser diffraction particle size analyzer, and thermal analysis (TGA, DTG and DSC) techniques. The results showed that the regular shape of PBT powders was converted into flakes and the nano-Sb 2 O 3 particles were well deagglomerated and better dispersed in the PBT matrix during the HEBM process. The mechanochemical activation that was provided by the HEBM process caused a reduction in the molecular weight of PBT, which result in favoring the first step of thermal degradation. Furthermore, two T g 's were obtained in the case of the nanocomposite powders when the milling time was over 3 h, one of them being slightly higher than that of the pure PBT, which indicated that there was a special interaction between PBT and nano-Sb 2 O 3 particles. However, the HEBM process leaded to a decreasing of the PBT crystallinity. J. VINYL ADDIT. TECHNOL., 25:91-97, 2019.

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Flammability and thermal degradation behavior of ethylene‐vinyl acetate/layered double hydroxides/zinc borate composites

Cited by 30 publications

References 39 publications

Fabrication of hydrotalcite containing N/P/S and its ternary synergistic efficiency on thermostability and fire resistance of ethylene vinyl acetate (EVA)

Fabrication of hydrotalcite containing N/P/S and its ternary synergistic efficiency on thermostability and fire resistance of ethylene vinyl acetate (EVA)

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Preparation and characterization of nano‐Sb₂O₃/poly(butylene terephthalate) composite powders based on high‐energy ball milling

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Flammability and thermal degradation behavior of ethylene‐vinyl acetate/layered double hydroxides/zinc borate composites

Cited by 30 publications

References 39 publications

Fabrication of hydrotalcite containing N/P/S and its ternary synergistic efficiency on thermostability and fire resistance of ethylene vinyl acetate (EVA)

Fabrication of hydrotalcite containing N/P/S and its ternary synergistic efficiency on thermostability and fire resistance of ethylene vinyl acetate (EVA)

Nanoreinforcements of Two-Dimensional Nanomaterials for Flame Retardant Polymeric Composites: An Overview

Preparation and characterization of nano‐Sb2O3/poly(butylene terephthalate) composite powders based on high‐energy ball milling

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Preparation and characterization of nano‐Sb₂O₃/poly(butylene terephthalate) composite powders based on high‐energy ball milling