Few layered Co(OH)<sub>2</sub>ultrathin nanosheet-based polyurethane nanocomposites with reduced fire hazard: from eco-friendly flame retardance to sustainable recycling

Zhang, Junhao; Kong, Qinghong; Yang, Lingwei

doi:10.1039/c5gc03048j

Cited by 173 publications

(76 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PVC/MH@M‐Phyt had the highest LOI value (30.3%), which was 22.3% and 9.5% more than those of PVC and PVC/MH, respectively. A reduction in HRR, especially pHRR, is the key parameter for fire safety . The HRR results for PVC/MH@M‐Phyt are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Meng

Wu²,

Zhang

et al. 2019

Polymer International

View full text Add to dashboard Cite

Two novelty bio‐based multifunctional metallic phytate coated (M‐Phyt, M ≡ Cu, Zn) Mg(OH)2 (MH@M‐Phyt) were designed and incorporated into flexible poly(vinyl chloride) (PVC). MH@M‐Phyt was incorporated into PVC materials in a powder form. The morphology of the interface between MH and M‐Phyt and their binding states were characterized by TEM and X‐ray photoelectron spectroscopy (XPS), respectively. The TEM images of MH@M‐Phyt indicated that M‐Phyt was successfully coated on the MH surface. Additionally, from the XPS spectra M‐Phyt and MH were connected by Mg–O–P bonds. The flame retardancy and mechanical properties of the PVC composites were investigated through the limiting oxygen index, cone calorimetry and mechanical tests. The char residues were analyzed by SEM. The results revealed that the MH@M‐Phyt powder functioned well in PVC, with a flame retardancy, smoke density, tensile strength and elongation at break better than those of PVC/MH. With 10 phr loading, the peak heat release rate of PVC/MH@Zn‐Phyt and PVC/MH@Cu‐Phyt decreased by 33.5% and 24.6%, respectively, benefitting from the formation of firmer and denser char layers on the char residues. © 2019 Society of Chemical Industry

show abstract

Section: Resultsmentioning

confidence: 99%

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Meng

Wu²,

Zhang

et al. 2019

Polymer International

View full text Add to dashboard Cite

show abstract

“…The larger the value, the lower the flash ignition tendency of materials . The FGI and FPI values are listed in Table , and it can be seen from the table that the PDPSI addition significantly reduced the FGI and increased the FPI. The FGI and FPI values of pure PET are 3.95 kW/s m 2 and 0.113 s m 2 /kW, respectively.…”

Section: Resultsmentioning

confidence: 99%

Preparation of a novel phosphorus‐containing organosilicon and its effect on the flame retardant and smoke suppression of polyethylene terephthalate

Peng

Xue

Song

et al. 2019

Polymers for Advanced Techs

View full text Add to dashboard Cite

A novel phosphorus‐containing silicone flame retardant (PDPSI) was prepared by Mannish reaction, and a series of PDPSI/PET composites were prepared by melt blending method. The nuclear magnetic resonance (1H NMR), Fourier transformation infrared (FTIR), and the thermogravimetric analyzer (TGA) results indicated that PDPSI showed network structure and owned good thermal stability, with the char residue of 62.2% at 800°C. The flame retardancy of PDPSI/PET composites was characterized by limiting oxygen index (LOI), vertical burning tests (UL‐94), and cone calorimeter (CCT). The results revealed that the addition amount of PDPSI was 5%, the LOI value of PDPSI/PET composites increased to 27.3%, and UL‐94 test passed V‐0 rating. When the PDPSI loading was 3%, PET composites showed excellent flame retardancy and smoke suppression, with a decrease in the peak heat release rate (PHRR) by 71.19% and the total smoke release (TSP) reduced from 14.4 to 11.1m2. The scanning electron microscopy (SEM) and FTIR results of char residue demonstrated that the flame‐retardant mechanism of PDPSI was solid phase flame retardant. PDPSI catalyzed the aromatization reaction of PET to promote the formation of a dense and continuous carbon layer, finally improving the flame retardancy and smoke suppression properties of PET.

show abstract

“…[47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62] The PAA adsorption strongly depended on the polymer size.…”

Section: Resultsmentioning

confidence: 99%

PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

et al. 2017

View full text Add to dashboard Cite

Mesoporous alumina, as a porous, high specific surface area, high activity, and heat stable material, has been widely used as an industrial adsorbent, catalyst, and catalyst support. The modification of alumina with organic polymers has been widely investigated in recent years. In this study, we compared the dependence of the adsorption of a polyelectrolyte, poly(acrylic acid) (PAA) on γ-alumina particles on polymer size via Fourier transform infrared spectroscopy, thermogravimetry, nitrogen adsorptiondesorption isotherm analysis, and atomic absorption spectrophotometry. We found that PAA with a hydrodynamic diameter greater than the alumina pore size would only adsorb on the outer surface of the oxides. For polymers with hydrodynamic diameters smaller than the alumina pore size, PAA infiltration resulted in a monolayer coverage of both the outer and inner surfaces of the oxide. Among the three PAA that could infiltrate the alumina pores, the one with the smallest molecular weight showed the highest adsorbed amount on alumina. The temperature, pH, concentration, and ionic strength of the PAA solutions were varied to illustrate the physicochemical differences of the prepared polymer/oxide composite materials. The high PAA-loaded composites were treated with a nickel ion solution, converted to Ni/alumina catalysts, and used in the methanation of carbon dioxide. The Ni/alumina catalysts were analyzed with X-ray diffraction and temperature-programmed reduction to illustrate the structural characteristics. The catalytic CO 2 methanation of the catalyst samples revealed that a solution pH value higher than pK a of PAA favored the formation of catalysts with high catalytic activity.

show abstract

Few layered Co(OH)₂ultrathin nanosheet-based polyurethane nanocomposites with reduced fire hazard: from eco-friendly flame retardance to sustainable recycling

Abstract: Huge consumption of thermoplastic polyurethane (TPU) results in two serious challenges for our society: fire hazards and environment pollution.

Cited by 173 publications

References 50 publications

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Preparation of a novel phosphorus‐containing organosilicon and its effect on the flame retardant and smoke suppression of polyethylene terephthalate

PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

Contact Info

Product

Resources

About

Few layered Co(OH)2ultrathin nanosheet-based polyurethane nanocomposites with reduced fire hazard: from eco-friendly flame retardance to sustainable recycling

Abstract: Huge consumption of thermoplastic polyurethane (TPU) results in two serious challenges for our society: fire hazards and environment pollution.

Cited by 173 publications

References 50 publications

Bio‐based Mg(OH)2@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Bio‐based Mg(OH)2@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Preparation of a novel phosphorus‐containing organosilicon and its effect on the flame retardant and smoke suppression of polyethylene terephthalate

PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel‐based catalyst

Contact Info

Product

Resources

About

Few layered Co(OH)₂ultrathin nanosheet-based polyurethane nanocomposites with reduced fire hazard: from eco-friendly flame retardance to sustainable recycling

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)

Bio‐based Mg(OH)₂@M‐Phyt: improving the flame‐retardant and mechanical properties of flexible poly(vinyl chloride)