Title: THERMAL DEGRADATION OF POLYURETHANE BICOMPONENT SYSTEMS IN CONTROLLED ATMOSPHERES
Page Range: p.1-26
Author(s): Ketata N; Sanglar C; Waton H; Alamercery S; Delolme F; Raffin G; Grenier-Loustalot M F
File size: 353K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 1
Abstract
The thermal behaviour of bicomponent polyurethanes in conditions of controlled atmosphere and temperature was characterised by determining their heat stability using on-line TGA/FT-IR coupling and off-line TGA/TCT/GC/MS coupling in order to identify the volatile compounds released. Degradation residues were analysed by FT-IR and MALDI-TOF mass spectrometry. A major disadvantage of these thermoplastic elastomers is that one of the components, isocyanate, is toxic. Based on the data obtained with model urethane compounds (para-TI-based) and bicomponent polyurethane polymer (MDI and PEG-based), this paper demonstrates that the thermal degradations are different. Since the various applications to which these materials are applied and the fact that they are exposed to extreme working conditions, reaction mechanisms for their degradation are proposed. 47 refs.
Related reading
More journal reading and science coverage connected to this topic.
Shear strength of concrete wide beams shear reinforced with GFRP plates
Title: Shear strength of concrete wide beams shear reinforced with GFRP plates Page Range: p.111-118 Author(s): Min Sook Kim; Joowon Kang; Young Hak Lee…
Residual strength and deformation recovery of RC beams strengthened with FRPs plates under the sustained load
Title: Residual strength and deformation recovery of RC beams strengthened with FRPs plates under the sustained load Page Range: p.119-126 Author(s): Dooyong Cho; Hoseong…
Reliability design and optimization process on through mold via using ultrafast laser
Title: Reliability design and optimization process on through mold via using ultrafast laser Page Range: p.1-8 Author(s): Hsiang-Chen Hsu; Shih-Jeh Wu; Wen-Fei Lin; Boen…