scholarly journals Study of the Synergistic Effect of Nanoporous Nickel Phosphates on Novel Intumescent Flame Retardant Polypropylene Composites

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Shibin Nie ◽  
Chi Zhang ◽  
Chao Peng ◽  
De-yi Wang ◽  
Daowei Ding ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Intumescent Flame Retardant ◽  
The Novel ◽  
Polypropylene Composites ◽  
Pp Composites ◽  
Flame Retardant Properties ◽  
Microencapsulated Ammonium Polyphosphate ◽  
Thermal Stability Of ◽  
Nickel Phosphates ◽  
Limited Oxygen

A char forming agent (CFA) and silica-gel microencapsulated ammonium polyphosphate (Si-MCAPP) were selected to form novel intumescent flame retardant system to prepare flame retardant polypropylene (PP) composites, and then the influences of nanoporous nickel phosphates (NiP) on the thermal and flame retardant properties of flame retardant PP composites were studied by the real time FTIR (RTFTIR) spectra, limited oxygen index (LOI) test, and the scanning electron microscopy. RTFTIR shows the addition of NiP can improve the thermal stability of flame retardant PP composites. LOI test shows LOI value is increased with the increase of the content of NiP, and the optimized concentration of NiP is 1.0%. Furthermore, smoke toxicity of the novel flame retardant PP composites was studied by mice experiment. The upper limit of the no death smoke concentration of the composite is 12.37 mg/L.

Synergistic Effects of Nanoporous Nickel Phosphates VSB-1 on Intumescent Flame Retardant Polypropylene Composites

2014 ◽  
Vol 881-883 ◽  
pp. 863-866
Author(s):  
Chao Peng ◽  
Shi Bin Nie ◽  
Lei Liu ◽  
Qi Lin He ◽  
Yuan Hu ◽  
...  
Keyword(s):  
Heat Release ◽  
Flame Retardant ◽  
Flame Retardants ◽  
Synergistic Effects ◽  
Intumescent Flame Retardant ◽  
Total Heat Release ◽  
Cone Calorimetry ◽  
Polypropylene Composites ◽  
Intumescent Flame Retardants ◽  
Nickel Phosphates

Nanoporous nickel phosphates (VSB-1) was synthesized by hydrothermal method. Then VSB-1 was added to the ammonium polyphosphate and pentaerythritol system in polypropylene (PP) matrix.The synergistic effect of VSB-1 with intumescent flame retardants (IFR) was studied by cone calorimetry test. The results of cone calorimetry show that heat release rate peak (pHRR) and total heat release (THR) of intumescent flame retardant PP with 2wt% VSB-1 decrease remarkably compared with that of without VSB-1. The pHRR and THR decrease respectively from 1140 to 286.0 kW/m2, and from 96.0 to 63.2 MJ/m2.

Investigation on Flame Retardant and Thermal Properties of Novel Intumescent Flame Retardant Low-Density Polyethylene Composites

2012 ◽  
Vol 548 ◽  
pp. 64-67 ◽  
Author(s):  
Xue Li Liu ◽  
Shi Bin Nie ◽  
Guang Long Dai
Keyword(s):  
Thermal Properties ◽  
Flame Retardant ◽  
Synergistic Effects ◽  
Weight Ratio ◽  
Intumescent Flame Retardant ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Flame Retardant Properties ◽  
Ldpe Composites ◽  
Microencapsulated Ammonium Polyphosphate

A novel intumescent flame retardant low-density polyethylene (LDPE) composite was prepared based on bamboo fiber (BF) and silica-gel microencapsulated ammonium polyphosphate (MCAPP). The synergistic effects between BF and MCAPP on the flame retardant and thermal properties of flame retardant LDPE composites were investigated. The results show that the flame retardant properties of LDPE composites are influenced by the weight ratio of BF and MCAPP. The higher content of MCAPP, the better flame retardant property can be obtained. When the ratio of BF/MCAPP is 1:1, the flame retardant LDPE composite shows excellent flame retardant properties.

Synthesis of a Novel Halogen-Free Intumescent Flame Retardant Agent

2014 ◽  
Vol 1004-1005 ◽  
pp. 1017-1021
Author(s):  
Wang Wang Yu ◽  
Tao Huang ◽  
Wen Lei
Keyword(s):  
Thermal Stability ◽  
Fourier Transform ◽  
Flame Retardant ◽  
Raw Materials ◽  
Intumescent Flame Retardant ◽  
Char Yield ◽  
Yield Performance ◽  
Flame Retardant Properties ◽  
Halogen Free ◽  
Thermal Stability Of

A novel non-halogen intumescent flame retardant agent (IFR) was prepared by using phosphoric acid, pentaerythritol and aniline as raw materials. The structure and thermal stability of IFR were investigated by means of Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The flame retardant properties of IFR were investigated based on its inflation and char yield performance at 500°C. The results show that both the reaction time and mole ratio of raw materials have effects on the inflation and char yield of IFR.

Flame Retardant Properties of Two Different Synthetic Process of Ammonium Polyphosphates

2013 ◽  
Vol 668 ◽  
pp. 53-56
Author(s):  
Gou Sheng Liu ◽  
Yue Long Liu
Keyword(s):  
Flame Retardant ◽  
Oxygen Index ◽  
Intumescent Flame Retardant ◽  
Ammonium Polyphosphate ◽  
Synthetic Process ◽  
Limited Oxygen Index ◽  
Decomposition Processes ◽  
Ul 94 ◽  
Flame Retardant Properties ◽  
Limited Oxygen

Ammonium polyphosphate (APP) produced by non-P2O5 process and traditional P2O5 process were used in the intumescent flame retardant (IFR) polypropylene (PP) composite (IFR-PP). The composite was tested by limited oxygen index (LOI) and UL-94. TGA and SEM were used to study the decomposition processes. Results showed that when the ratio of APP-II/ pentaerythritol/melamine is 3/1/1, the LOI value is 33.1, and all composite could reach UL-94 V0 rating. The results showed that APP by non-P2O5 process had similar IFR properties as APP of traditional P2O5 process

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