Development of a New Material for Mine Fire Control

2014 ◽  
Vol 186 (7) ◽  
pp. 928-942 ◽  
Author(s):  
Leilin Zhang ◽  
Botao Qin
Keyword(s):  
Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1706 ◽  
Author(s):  
Hetang Wang ◽  
Yunhe Du ◽  
Deming Wang ◽  
Botao Qin

Safe mining is the premise and guarantee of sustainable development of coal energy. Due to the combination of excellent properties of polymers and traditional soft matters, polymer-containing soft matters are playing an increasingly important role in mine disaster and hazard control. To summarize the valuable work in recent years and provide reference and inspiration for researchers in this field, this paper reviewed the recent research progress in polymer-containing soft matters with respect to mine dust control, mine fire control, mine gas control and mine roadway support. From the perspective role of polymers in a material system, we classify mine polymer-containing soft matters into two categories. The first is polymer additive materials, in which polymers are used as additives to modify fluid-like soft matters, such as dust-reducing agents (surfactant solution) and dust-suppressing foams. The second is polymer-based materials, in which polymers are used as a main component to form high performance solid-like soft matters, such as fire prevention gels, foam gels, gas hole sealing material and resin anchorage agent. The preparation principle, properties and application of these soft matters are comprehensively reviewed. Furthermore, future research directions are also suggested.


Author(s):  
Yingxin Zhang ◽  
Rijun Li ◽  
Yifei Wang ◽  
Xuan Wu ◽  
Jiawei Wang ◽  
...  

1984 ◽  
Author(s):  
J P L Bacharach ◽  
A L Craven ◽  
D B Stewart

2014 ◽  
Vol 40 (2) ◽  
pp. 246-260 ◽  
Author(s):  
Leilin Zhang ◽  
Botao Qin

1985 ◽  
Author(s):  
J P L Bacharach ◽  
A L Craven ◽  
D B Stewart

1986 ◽  
Author(s):  
R N Chakravorty ◽  
R J Kolada

Author(s):  
X. Lin ◽  
X. K. Wang ◽  
V. P. Dravid ◽  
J. B. Ketterson ◽  
R. P. H. Chang

For small curvatures of a graphitic sheet, carbon atoms can maintain their preferred sp2 bonding while allowing the sheet to have various three-dimensional geometries, which may have exotic structural and electronic properties. In addition the fivefold rings will lead to a positive Gaussian curvature in the hexagonal network, and the sevenfold rings cause a negative one. By combining these sevenfold and fivefold rings with sixfold rings, it is possible to construct complicated carbon sp2 networks. Because it is much easier to introduce pentagons and heptagons into the single-layer hexagonal network than into the multilayer network, the complicated morphologies would be more common in the single-layer graphite structures. In this contribution, we report the observation and characterization of a new material of monolayer graphitic structure by electron diffraction, HREM, EELS.The synthesis process used in this study is reported early. We utilized a composite anode of graphite and copper for arc evaporation in helium.


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