Thermal Stability of [Ni(htde)](ClO4)2 and Its Corrosion Inhibition Effect for Mild Steel in 1.0 M HCl and H2SO4 Solutions

2019 ◽  
pp. 494-505 ◽  
Author(s):  
Wan Gou ◽  
Keyword(s):  
Thermal Stability ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Inhibition Effect ◽  
Thermal Stability Of

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.

Comparative study of green corrosion inhibition effect on mild steel in different acid medium by Laburnum waterier Vossii leaves extract

2018 ◽  
Vol 11 (2) ◽  
pp. 253
Author(s):  
S. Perumal ◽  
R. Sayee Kannan ◽  
S. Muthumanickam ◽  
A. Elangovan ◽  
N. Muniyappan ◽  
...  
Keyword(s):  
Comparative Study ◽  
Mild Steel ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Inhibition Effect
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