Specification for sleeves of insulating material for live working

Objective: A new poly(ionic liquid)(PIL), poly(p-vinylbenzyltriphenylphosphine hexafluorophosphate) (P[VBTPP][PF6]), was synthesized by quaternization, anion exchange reaction, and free radical polymerization. Then a series of the PIL were synthesized at different conditions. Methods: The specific heat capacity, glass-transition temperature and melting temperature of the synthesized PILs were measured by differential scanning calorimeter. The thermal conductivities of the PILs were measured by the laser flash analysis method. Results: Results showed that, under optimized synthesis conditions, P[VBTPP][PF6] as the thermal insulator had a high glass-transition temperature of 210.1°C, high melting point of 421.6°C, and a low thermal conductivity of 0.0920 W m-1 K-1 at 40.0°C (it was 0.105 W m-1 K-1 even at 180.0°C). The foamed sample exhibited much low thermal conductivity λ=0.0340 W m-1 K-1 at room temperature, which was comparable to a commercial polyurethane thermal insulating material although the latter had a much lower density. Conclusion: In addition, mixing the P[VBTPP][PF6] sample into polypropylene could obviously increase the Oxygen Index, revealing its efficient flame resistance. Therefore, P[VBTPP][PF6] is a potential thermal insulating material.

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Toward Understanding of Charge Transport Behavior in Polymeric Insulating Material Through Surface Potential Decay Measurement Depending on Capture Cross-Section Estimation

2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE) ◽

10.1109/ichve49031.2020.9279778 ◽

2020 ◽

Author(s):

Xuri Xu ◽

Yu Gao ◽

Jing Li ◽

Zheng Song ◽

Boxue Du

Keyword(s):

Charge Transport ◽

Cross Section ◽

Surface Potential ◽

Capture Cross Section ◽

Capture Cross ◽

Insulating Material ◽

Transport Behavior ◽

Decay Measurement ◽

Potential Decay

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Coal tar pitch based carbon foam for thermal insulating material

Materials Letters ◽

10.1016/j.matlet.2016.01.081 ◽

2016 ◽

Vol 169 ◽

pp. 95-98 ◽

Cited By ~ 18

Author(s):

Yanli Wang ◽

Ziguo He ◽

Liang Zhan ◽

Xiang Liu

Keyword(s):

Coal Tar ◽

Carbon Foam ◽

Coal Tar Pitch ◽

Insulating Material ◽

Thermal Insulating

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