Thermal stability, flame retardance, and mechanical properties of polyamide 66 modified by a nitrogen-phosphorous reacting flame retardant

2016 ◽  
Vol 133 (24) ◽  
pp. n/a-n/a ◽  
Author(s):  
Wenyan Lyu ◽  
Yihua Cui ◽  
Xujie Zhang ◽  
Jingyao Yuan ◽  
Wei Zhang
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardant ◽  
Flame Retardance ◽  
Polyamide 66

scholarly journals Intrinsically flame-retardant polyamide 66 with high flame retardancy and mechanical properties

RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 433-441
Author(s):  
Jingnan Zhang ◽  
Siming Lian ◽  
Yifan He ◽  
Xinyu Cao ◽  
Jiaming Shang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Flame Retardants ◽  
Polyamide 66 ◽  
Key Factor

The key factor in the synthesis of intrinsic flame retardant polymers is the thermal stability and reactivity of phosphorus-based flame retardants.

scholarly journals Highly Efficient Composite Flame Retardants for Improving the Flame Retardancy, Thermal Stability, Smoke Suppression, and Mechanical Properties of EVA

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1251
Author(s):  
Yilin Liu ◽  
Bin Li ◽  
Miaojun Xu ◽  
Lili Wang
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Heat Release ◽  
Flame Retardant ◽  
Production Rate ◽  
Flame Retardancy ◽  
Flame Retardants ◽  
Mass Loss Rate ◽  
Smoke Suppression ◽  
Average Mass

Ethylene vinyl acetate (EVA) copolymer has been used extensively in many fields. However, EVA is flammable and releases CO gas during burning. In this work, a composite flame retardant with ammonium polyphosphate (APP), a charring–foaming agent (CFA), and a layered double hydroxide (LDH) containing rare-earth elements (REEs) was obtained and used to improve the flame retardancy, thermal stability, and smoke suppression for an EVA matrix. The thermal analysis showed that the maximum thermal degradation temperature of all composites increased by more than 37 °C compared with that of pure EVA. S-LaMgAl/APP/CFA/EVA, S-CeMgAl/APP/CFA/EVA, and S-NdMgAl/APP/CFA/EVA could achieve self-extinguishing behavior according to the UL-94 tests (V-0 rating). The peak heat release rate (pk-HRR) indicated that all LDHs containing REEs obviously reduced the fire strength in comparison with S-MgAl. In particular, pk-HRR of S-LaMgAl/APP/CFA/EVA, S-CeMgAl/APP/CFA/EVA and S-NdMgAl/APP/CFA/EVA were all decreased by more than 82% in comparison with pure EVA. Furthermore, the total heat release (THR), smoke production rate (SPR), and production rate of CO (COP) also decreased significantly. The average mass loss rate (AMLR) confirmed that the flame retardant exerted an effect in the condensed phase of the composites. Meanwhile, the combination of APP, CFA, and LDH containing REEs allowed the EVA matrix to maintain good mechanical properties.

Synthesis and characterization of a phosphorus-containing flame retardant with double bonds and its application in bismaleimide resins

RSC Advances ◽  
2015 ◽  
Vol 5 (123) ◽  
pp. 101480-101486 ◽  
Author(s):  
Song Li ◽  
Hongxia Yan ◽  
Shuyao Feng ◽  
Song Niu
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Synthesis And Characterization ◽  
Bismaleimide Resin ◽  
Phosphorus Containing ◽  
Reactive Phosphorus ◽  
Bismaleimide Resins

A novel reactive phosphorus-containing flame retardant was synthesized and used to modify bismaleimide resin. According to investigations, the modified bismaleimide resin has good mechanical properties, thermal stability and flame retardancy.

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