scholarly journals Synthesis of a novel polyphosphate and its application with APP in flame retardant PLA

RSC Advances ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 4483-4493 ◽  
Author(s):  
Ting Liu ◽  
Jian Jing ◽  
Yan Zhang ◽  
Zhengping Fang
Keyword(s):  
Flame Retardant ◽  
Phosphorus Oxychloride ◽  
Intumescent Flame Retardant ◽  
Ammonium Polyphosphate ◽  
Type Reaction ◽  
Phosphorus Containing

A phosphorus-containing flame retardant was synthesized via an A2 + B3 type reaction of bisphenolic acid-based monomer and phosphorus oxychloride. Then, intumescent flame retardant systems were prepared by combining PFRS with ammonium polyphosphate.

Combustion and thermal behaviors of the novel UV-cured intumescent flame retardant coatings containing phosphorus and nitrogen

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
WeiYi Xing ◽  
Lei Song ◽  
Yuan Hu ◽  
Xiaoqi Lv ◽  
Xin Wang
Keyword(s):  
Flame Retardant ◽  
Cone Calorimeter ◽  
Degradation Mechanism ◽  
Intumescent Flame Retardant ◽  
The Novel ◽  
Uv Curable ◽  
Peak Heat Release Rate ◽  
Phosphorus Containing ◽  
Fire Properties ◽  
Triglycidyl Isocyanurate

AbstractPhosphorus-containing tri(acryloyloxyethyl) phosphate (TAEP) was blended with triglycidyl isocyanurate acrylate (TGICA) in different ratios to obtain a series of UV curable intumescent flame retardant resins. The fire properties of the cured films were characterized by limited oxygen index (LOI), UL 94 and Cone Calorimeter. A distinct synergistic effect was found between TAEP and TGICA. The sample TAEP2 had the highest LOI (44) value among all resins. The cone calorimeter results showed that the sample TAEP2 had the lowest peak heat release rate (297 KW/M2). The thermal degradation was monitored by thermogravimetric analysis (TGA) and real-time Fourier transform infrared spectroscopy (RT-FTIR). The degradation mechanism is suggested in which the phosphate group in TAEP first degraded to form poly(phosphoric acid)s, which further catalyzed the degradation of the material to form char with emission of nitrogen volatiles from TGICA, leading to the formation of expanding char.

Fire Degradation of an Intumescent Flame Retardant Polypropylene Using the Cone Calorimeter

1995 ◽  
Vol 13 (1) ◽  
pp. 3-22 ◽  
Author(s):  
S. Bourbigot ◽  
M. Le Bras ◽  
R. Delobel
Keyword(s):  
Heat Flux ◽  
Weight Loss ◽  
Flame Retardant ◽  
Cone Calorimeter ◽  
Intumescent Flame Retardant ◽  
Ammonium Polyphosphate ◽  
Stability Zone ◽  
Intumescent Coating ◽  
Weight Loss Data ◽  
Loss Data

This work studies the fire degradation of an intumescent for mulation Polypropylene (PP)-Ammonium Polyphosphate (APP)/Pentaerythri tol (PER) using the cone calorimeter. An intumescence model is described which introduces the notion of degradation front. From the weight loss data recorded by the cone calorimeter and the results of the invariant kinetic pa rameters method (given in appendix) applied to the PP and to the PP-APP/PER system, the respective temperatures of the degradation fronts are measured. A stability zone is shown where the protection is effective. The intumescent coating degrades then by forming a carbonaceous residue which reduces the heat flux evolved.

A New Intumescent Flame Retardant on Epoxy Resin

2014 ◽  
Vol 665 ◽  
pp. 307-310 ◽  
Author(s):  
Chun Feng Sun ◽  
Ming Gao
Keyword(s):  
Infrared Spectroscopy ◽  
Phosphoric Acid ◽  
Flame Retardant ◽  
Epoxy Resin ◽  
Oxygen Index ◽  
Phosphorus Oxychloride ◽  
Low Cost ◽  
Intumescent Flame Retardant ◽  
Limit Oxygen Index ◽  
Water As Solvent

The cheaper phosphoric acid was uesd to replace the phosphorus oxychloride, starch was used to replace pentaerythritol and water as solvent to synthesize a new low-cost intumescent flame retardant (IFR)—starch phosphate ethylenediamine salts. The structure of the IFR was characterized with infrared spectroscopy. The IFR was used to impart flame retardancy to the Epoxy self-leveling floor (Epoxy Resin, EP) to get the fireproof Epoxy self-leveling floor. The results of test showed that 20% of IFR limit oxygen index of EP/IFR composite reach 31.0%. The results show that flame retardant catalyze the pyrolysis of epoxy resin into charcoal; Vertical burning passed UL94 V-0 rating.

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