Synthesis of a novel hybrid synergistic flame retardant and its application in PP/IFR

Wei, Ping; Jiang, Pingkai; Zhao, Xiaomin; Yu, Haizhou

doi:10.1016/j.polymdegradstab.2011.02.017

Cited by 93 publications

(52 citation statements)

References 26 publications

(25 reference statements)

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“…Wei [41] reported the synthesis and successful incorporation of a novel hyperbranched polyphosphamide (HBPE) into PLA. As typical intumescent flame retardant, the flame retardancy of polyphosphoramide could be enhanced by cooperation with synergistic additives, such as sulfur-containing compounds [42,43], silicon-containing compounds [44,45] and carbon materials [46,47] et al Among these synergistic additives, sulfur-containing polymers are impressing as additives for EP due to its high T g s, excellent thermal stability, outstanding mechanical properties and larger intermolecular force between polymer chains [48e50]. Modification of polyphosphoramide with sulfur could be an effective way to endow epoxy resin with high flame retardancy and T g s [30,31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a novel PEPA-substituted polyphosphoramide with high char residues and its performance as an intumescent flame retardant for epoxy resins

Zhao

Liu

Peng

et al. 2015

Polymer Degradation and Stability

139

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Section: Introductionmentioning

confidence: 99%

Synthesis of a novel PEPA-substituted polyphosphoramide with high char residues and its performance as an intumescent flame retardant for epoxy resins

Zhao

Liu

Peng

et al. 2015

Polymer Degradation and Stability

139

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“…Poly(lactic acid) with hybrid flame retardant The development of hybrid materials as flame retardants has drawn significant attention in recent years. They are produced from a combination of organic and inorganic components through chemistry processes, including sol-gel [72], intercalation, exchange, or grafting methods [73]. The existence of an organic unit in the hybrid structure is essential to enhance compatibility with the polymer matrix, whereas the inorganic part of the hybrid additive is responsible for the FR properties of the host polymer.…”

Section: Chemical Modification Of Poly(lactic Acid)mentioning

confidence: 99%

Flame retarded poly(lactic acid): A review

Chow

Teoh

Karger‐Kocsis

2018

Express Polym. Lett.

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“…Rheology has been used to investigate the viscoelastic properties of thermoplastic polymers, to study crosslinking in fire retarded systems, and to better understand the structure-property relationships of polymer blends [19,20] . In order to clarify the interaction mechanism of MnAc, APP-PER mixture and PP, the viscosity of PP/25APP+PER/MnAc blends were studied as a function of temperature under nitrogen.…”

Section: Rheological Analysismentioning

confidence: 99%

Mechanism of enhancement of intumescent fire retardancy by metal acetates in polypropylene

Zhang

Fang

et al. 2017

Polymer Degradation and Stability

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The effects of cobalt acetate (CoAc), manganese acetate (MnAc), nickel acetate (NiAc) and zinc acetate (ZnAc) as fire retardant additive in intumescent polypropylene (PP) formulations containing PP/ammonium polyphosphate (APP)/pentaerythritol (PER) are reported. The limiting oxygen index (LOI) and vertical burning (UL94) tests and cone calorimetry were used to quantify the enhancement. Environmental chamber rheometry, thermal gravimetric analysis and the morphology of the residual char were used to investigate the mechanism of enhancement. The incorporation of small quantities of metal acetates had a significant influence on the fire behaviour. As an example, 0.7 wt% MnAc improved the UL 94 rating of PP/APP+PER (mass ratio 100/25, with APP/PER=3/1) sample from V-2 to V-0, while 1 wt% MnAc reduced the peak heat release rate and the total heat release by 18% and 12% in the cone calorimeter. Rheological data, cone calorimetry, and photographs of the residual char showed how the fire retardancy of the systems were affected by the melt viscosity, which depended on the loading of metal acetate. During thermal decomposition, the metal acetates promote the crosslinking of the polymer and the fire retardant, reinforcing the protective intumescent layer. While, the effect is most potent at the optimal metal loadings. At higher MnAc loadings, the benefit of a stronger char is overwhelmed by the adverse effect of crosslinking on the transition char layer. Thus, this paper offers a new insight into the mechanism of the intumescent fire retarded PP system.

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Synthesis of a novel hybrid synergistic flame retardant and its application in PP/IFR

Cited by 93 publications

References 26 publications

Synthesis of a novel PEPA-substituted polyphosphoramide with high char residues and its performance as an intumescent flame retardant for epoxy resins

Synthesis of a novel PEPA-substituted polyphosphoramide with high char residues and its performance as an intumescent flame retardant for epoxy resins

Flame retarded poly(lactic acid): A review

Mechanism of enhancement of intumescent fire retardancy by metal acetates in polypropylene

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