Pyrolysis and flammability behavior of long (Glass fiber)-Reinforced polyamide 6 by aluminum alkylphosphinate-based flame retardants in combination with organic montmorillonite

2015 ◽  
Vol 24 (1) ◽  
pp. 27-36 ◽  
Author(s):  
Wentao He ◽  
Huan Zhu ◽  
Pengcheng Zhang ◽  
Yushu Xiang ◽  
Ying Zhou ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Flame Retardants ◽  
Polyamide 6 ◽  
Fiber Reinforced ◽  
Organic Montmorillonite ◽  
Glass Fiber Reinforced ◽  
Long Glass Fiber

Study on the Properties and Mechanism of Flame Retarded Glass Fiber Reinforced Polyamide 6 with Microcapsulated Aluminum Hypophosphite

2014 ◽  
Vol 1033-1034 ◽  
pp. 916-920 ◽  
Author(s):  
Hai Shan Tang ◽  
Yi Lun Tan ◽  
Ning Ping Wang ◽  
Lang Ping Xia ◽  
Jie Zhu ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Flame Retardant ◽  
Flame Retardants ◽  
Mechanical Performance ◽  
Polyamide 6 ◽  
Mechanical Tests ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced ◽  
Flame Retarded ◽  
Aluminum Hypophosphite

Aluminum hypophosphite can be used to flame retard glass fiber reinforced polyamide 6 (GFPA6). TGIC microcapsulated AlHP (T-AlHP) and epoxy resin microcapsulated AlHP (E-AlHP) were made and put into GFPA6. The vertical burning tests and mechanical tests were taken to study the flame retardant performance and mechanical properties of the corresponding composites. Addition of either T-AlHP or E-AlHP resulted in an increased UL-94 rating and a decreased comprehensive mechanical performance. T-AlHP endowed GFPA6 a better flame retardancy than E-AlHP did. TG showed the decomposition behaviors of T-AlHP, E-AlHP, and the corresponding composites. From Py-GC/MS, the detailed pyrolysis products of flame retardants and the flame-retardant composites were identified. Finally, the properties and mechanism of flame retarded GFPA6 with these two kinds of microcapsulated Aluminum Phosphate were summarized.

Influence of thermo-oxidative aging on flame retardancy, thermal stability, and mechanical properties of long glass fiber–reinforced polypropylene composites filled with organic montmorillonite and intumescent flame retardant

2019 ◽  
Vol 37 (2) ◽  
pp. 176-189 ◽  
Author(s):  
Ying Zhou ◽  
Weidi He ◽  
Yifan Wu ◽  
Dinghong Xu ◽  
Xiaolang Chen ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Flame Retardant ◽  
Intumescent Flame Retardant ◽  
Fiber Reinforced ◽  
Limiting Oxygen Index ◽  
Polypropylene Composites ◽  
Organic Montmorillonite ◽  
Glass Fiber Reinforced ◽  
Cone Calorimeter Test ◽  
Long Glass Fiber

In this work, the effect of thermo-oxidative aging on organic montmorillonite/intumescent flame retardant/long glass fiber–reinforced polypropylene composites was investigated for different exposure times at 140°C. Limiting oxygen index, Underwriters Laboratories-94 tests, cone calorimeter test, and thermogravimetric analysis were used to evaluate the flammability and thermal stability. The results of limiting oxygen index values, Underwriters Laboratories 94 test, and cone calorimeter test show that aging performs negative effect on the flame retardancy of organic montmorillonite/intumescent flame retardant/long glass fiber–reinforced polypropylene composites. Thermal oxidation aging markedly changes the decomposition process of organic montmorillonite/intumescent flame retardant/long glass fiber–reinforced polypropylene composites. The scanning electronic microscopy images of the external surface of composites indicate that many ground particles and micro-scale cracks are scattered in the surfaces of the composites after aging. The sharp micro-scale cracks and crazing formed on the surface promote the heat and oxygen to penetrate into the bulk of polypropylene matrix. According to the mechanical test results, the thermal oxidation aging reduces the tensile, flexural, and notched impact strengths of organic montmorillonite/intumescent flame retardant/long glass fiber–reinforced polypropylene composites.

Fire performance of brominated and halogen-free flame retardants in glass-fiber reinforced poly(butylene terephthalate)

2017 ◽  
Vol 42 (1) ◽  
pp. 18-27 ◽  
Author(s):  
M. Suzanne ◽  
A. Ramani ◽  
S. Ukleja ◽  
M. McKee ◽  
J. Zhang ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Flame Retardants ◽  
Fire Performance ◽  
Fiber Reinforced ◽  
Butylene Terephthalate ◽  
Glass Fiber Reinforced ◽  
Halogen Free
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