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A Novel Poly(Ionic Liquid) as the Thermal Insulating Material
- Source :
- Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering). 13:241-247
- Publication Year :
- 2020
- Publisher :
- Bentham Science Publishers Ltd., 2020.
-
Abstract
- 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.
Details
- ISSN :
- 24055204
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)
- Accession number :
- edsair.doi...........327470b7705bd5beed2220964a20b08f