Thermalcharacteristics of novel NaH2PO4/NaHSO4flame retardant system for polyurethane foams |
| |
Authors: | K. Kulesza K. Pielichowski Z. Kowalski |
| |
Affiliation: | (1) Dipartimento di Scienze Ambientali, Università della Tuscia, Viterbo, Italy, 01100;(2) Dipartimento di Chimica, Università 'La Sapienza', Roma, Italy, 00185 |
| |
Abstract: | The thermal decomposition of iminodiacetic, oxydiacetic, and thiodiacetic acids in helium atmosphere has been studied by means of thermogravimetry (TG), differential thermal analysis (DTA) and temperature-programmed pyrolysis directly coupled with mass spectrometry (TPPy-MS). Evolved gas analysis (EGA) profiles of iminodiacetic and oxydiacetic acids were obtained and compared with TG and DTA profiles. The decomposition of iminodiacetic acid forms water, CO, CO2, CH3CN, HCN and some hydrocarbons. After water evolution a cyclic anhydride is formed, as well as for oxydiacetic acid. Thiodiacetic acid vaporizes without decomposition. |
| |
Keywords: | decomposition mechanism differential thermal analysis simultaneous thermogravimetry temperature-programmed pyrolysis-mass spectrometry (TPPy-MS) thermal decomposition |
本文献已被 SpringerLink 等数据库收录! |
|