Flame retardancy of EPDM/Kevlar fibre composites with zinc borate, magnesium hydroxide and ammonium polyphosphate

2021 ◽  
Author(s):  
Kesiya George ◽  
Smita Mohanty ◽  
Manoranjan Biswal ◽  
Sanjay K. Nayak
Keyword(s):  
Magnesium Hydroxide ◽  
Flame Retardancy ◽  
Ammonium Polyphosphate ◽  
Zinc Borate ◽  
Fibre Composites

Flame retardancy of unsaturated polyester composites with modified ammonium polyphosphate, montmorillonite, and zinc borate

2018 ◽  
Vol 136 (11) ◽  
pp. 47180 ◽  
Author(s):  
Mengwei Jiang ◽  
Yunshu Zhang ◽  
Yuan Yu ◽  
Qingwu Zhang ◽  
Bujun Huang ◽  
...  
Keyword(s):  
Flame Retardancy ◽  
Unsaturated Polyester ◽  
Ammonium Polyphosphate ◽  
Zinc Borate ◽  
Polyester Composites

Effect of Triaryl Phosphate, Zinc and Zinc Borate on Fire Properties of High Impact Polystyrene and High Impact Polystyrene-Polyphenylene Oxide Blend (Modified-Polyphenylene Oxide

1994 ◽  
Vol 12 (6) ◽  
pp. 529-550 ◽  
Author(s):  
Ramazan Benrashid ◽  
Gordon L. Nelson ◽  
Donald J. Ferm
Keyword(s):  
Flame Retardancy ◽  
High Impact ◽  
Zinc Borate ◽  
Polyphenylene Oxide ◽  
High Impact Polystyrene ◽  
Smoke Generation ◽  
Flame Retarded ◽  
Rate Of Heat Release ◽  
Fire Properties ◽  
Phase Activity

Samples of m-PPO (virgin and flame retarded) and high impact polystyrene blended with zinc and zinc borate (2ZnO·3B2O3·3.5H 2O), were pre pared. The effect of triaryl phosphate on the flame retardancy of PPO-HIPS in conjunction with zinc and zinc borate was studied. For polystyrene zinc borate shows some reduction in smoke generation. Zinc, however does not show any effect on smoke generation for high impact polystyrene. Triphenyl phosphate shows minimal flame retardancy in HIPS which is not enhanced by zinc. Addition of zinc gives an increase in oxygen index for FR m-PPO, whereas zinc borate decreases the OI values. Zinc borate may sequester triaryl phos phate and thus eliminate its vapor phase activity. Zinc borate shows a signifi cant reduction in smoke generation and rate of heat release for m-PPO.

Rheological Behavior and Microstructure of Flame Retardant Polypropylene Composites

2010 ◽  
Author(s):  
Guo Jiang ◽  
Kai Liao ◽  
Juan-Juan Han ◽  
De-Xian Feng ◽  
Han-Xiong Huang
Keyword(s):  
Magnesium Hydroxide ◽  
Shear Viscosity ◽  
Flame Retardancy ◽  
Rheological Behavior ◽  
Oxygen Index ◽  
Complex Viscosity ◽  
Test Results ◽  
Screw Extruder ◽  
Polypropylene Composites ◽  
Twin Screw

Polypropylene (PP)/magnesium hydroxide (MDH) composite was melt-mixed using a twin-screw extruder. Two types of MDH were used, one with the modification of silane and another without. The rheological behavior was measured by capillary and dynamical rheometer. Microstructure of these composites was observed by SEM. Their flame retardancy was characterized by oxygen index and Horizontal/Vertical burning test. Results showed that shear viscosity and complex viscosity of PP with modified MDH were lower than that of PP with non-modified MDH. SEM results also showed a better dispersion of silane modified MDH in PP matrix. With the increase of MDH content, the oxygen index of composites was increased. When the content was increased to 60 wt%, the composite was UL94 HB and V-1.

Study of the Effect of a Polymeric Compatibilizing Agent on the Flame Retardancy and Tensile Properties of High Density Polyethylene/Magnesium Hydroxide Compositions

2017 ◽  
Vol 374 (1) ◽  
pp. 1600116 ◽  
Author(s):  
Edgar N. Cabrera Álvarez ◽  
Luis F. Ramos-deValle ◽  
Saul Sánchez-Valdes ◽  
Eduardo Ramírez-Vargas ◽  
Adriana B. Espinoza-Martinez ◽  
...  
Keyword(s):  
Tensile Properties ◽  
Magnesium Hydroxide ◽  
Flame Retardancy ◽  
High Density Polyethylene ◽  
High Density ◽  
Compatibilizing Agent
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