Fabrication of multifunctional polymethyl methacrylate composites based on phosphorus‐containing polyaniline with excellent flame retardancy and electrical conductivity

2020 ◽  
Author(s):  
Zhaoshun Zhan ◽  
Li Wang ◽  
Yaolong Zhang ◽  
Shihan Weng ◽  
Menghan Sun ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Polymethyl Methacrylate ◽  
Flame Retardancy ◽  
Phosphorus Containing

scholarly journals A bio-based phosphaphenanthrene-containing derivative modified epoxy thermosets with good flame retardancy, high mechanical properties and transparency

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30943-30954
Author(s):  
Wei Peng ◽  
Yu-xuan Xu ◽  
Shi-bin Nie ◽  
Wei Yang
Keyword(s):  
Mechanical Properties ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Epoxy Resins ◽  
Flame Retardants ◽  
The Past ◽  
Phosphorus Containing ◽  
Modified Epoxy

Phosphorus-containing flame retardants have received huge interest for improving the flame retardant behavior of epoxy resins (EP) over the past few decades.

A novel phosphorus-containing copolyester with low melting temperature and high flame retardancy

2009 ◽  
Vol 58 (10) ◽  
pp. 1202-1208 ◽  
Author(s):  
Xin-Ke Jing ◽  
Xin-Guo Ge ◽  
Xing Xiang ◽  
Chuan Wang ◽  
Zhe Sun ◽  
...  
Keyword(s):  
Melting Temperature ◽  
Flame Retardancy ◽  
Phosphorus Containing

Novel phosphorus-containing imidazolium as hardener for epoxy resin aiming at controllable latent curing behavior and flame retardancy

2020 ◽  
Vol 184 ◽  
pp. 107673 ◽  
Author(s):  
Ying-Jun Xu ◽  
Xiao-Hui Shi ◽  
Jia-Hui Lu ◽  
Min Qi ◽  
De-Ming Guo ◽  
...  
Keyword(s):  
Epoxy Resin ◽  
Flame Retardancy ◽  
Curing Behavior ◽  
Phosphorus Containing

Electrical Conductivity of Thermoplastic Elastomers Modified with Gaseous Fluorine

2017 ◽  
Vol 44 (2) ◽  
pp. 15-20
Author(s):  
G.N. Petrova ◽  
T.V. Rumyantseva ◽  
V.G. Nazarov ◽  
Yu.A. Sapego
Keyword(s):  
Electrical Conductivity ◽  
Volume Resistivity ◽  
Thermoplastic Elastomers ◽  
Surface Reactivity ◽  
Ethanol Treatment ◽  
Atomic Force ◽  
Fold Reduction ◽  
Phosphorus Containing ◽  
Surface Fluorination ◽  
Gaseous Fluorine

The electrical conductivity of thermoplastic elastomers (TPEs) modified with gaseous chlorine was studied. A TPE based on polyether (‘Vitur’-grade polyurethane) and the same TPE but with phosphorus-containing fireproofing agent were held in gaseous fluorine for 1 and 3 h, and were also treated with alcohol after fluorination. The surface morphology of specimens was studied using an atomic force microscope (AFM). The changes in morphology were similar to the changes observed after the surface fluorination of rubbers. The volume and surface resistivities were measured using an Agilent 4339B instrument (USA). In all cases, the volume resistivities of modified TPEs were two orders of magnitude lower than those of the initial TPEs. The introduction of a fireproofing agent leads to a 2.5-fold reduction in volume resistivity, and a 100-fold reduction in surface reactivity. The influence of the fireproofing agent is associated with it having an effect similar to that of fillers, and with the formation of a thin layer on the surface of specimens. it was shown that ethanol treatment leads to a reduction in volume resistivity.

scholarly journals Investigation of the Structure-Property Effect of Phosphorus-Containing Polysulfone on Decomposition and Flame Retardant Epoxy Resin Composites

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 380 ◽  
Author(s):  
Wei Zhao ◽  
Yongxiang Li ◽  
Qiushi Li ◽  
Yiliang Wang ◽  
Gong Wang
Keyword(s):  
Thermal Stability ◽  
Flame Retardant ◽  
Flame Retardancy ◽  
Phosphorus Content ◽  
Structure Property ◽  
Scanning Calorimetry ◽  
Inhibition Effect ◽  
Phosphorus Containing ◽  
High Degree ◽  
Thermal Stability Of

The flame retardant modification of epoxy (EP) is of great signification for aerospace, automotive, marine, and energy industries. In this study, a series of EP composites containing different variations of phosphorus-containing polysulfone (with a phosphorus content of approximately 1.25 wt %) were obtained. The obtained EP/polysulfone composites had a high glass transition temperature (Tg) and high flame retardancy. The influence of phosphorus-containing compounds (ArPN2, ArPO2, ArOPN2 and ArOPO2) on the thermal properties and flame retardancy of EP/polysulfone composites was investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), a UL-94 vertical burning test, and cone calorimeter tests. The phosphorus-containing polysulfone enhanced the thermal stability of EP. The more stable porous char layer, less flammable gases, and a lower apparent activation energy at a high degree of conversion demonstrated the high gas inhibition effect of phosphorus-containing compounds. Moreover, the gas inhibition effect of polysulfone with a P–C bond was more efficient than the polysulfone with a P–O–C bond. The potential for optimizing flame retardancy while maintaining a high Tg is highlighted in this study. The flame-retardant EP/polysulfone composites with high thermal stability broaden the application field of epoxy.

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