Study of the composition effect of glass ceramic and silver on poly(vinyl butyral) thermal degradation with thermogravimetric analysis

Abstract

ABSTRACT:The thermal degradation of poly(vinyl butyral) (PVB)/glass ceramic, PVB/Ag, and PVB/glass ceramic/Ag composites was investigated with thermogravimetric analysis in nitrogen and air. Thermogravimetric data revealed that the compositions of both inorganic materials in air could greatly influence the thermal degradation of PVB. The degradation reactions of PVB/ceramic and PVB/Ag composites began earlier and accelerated rapidly at lower temperatures. The overall degradation period was obviously shortened for the thermal degradation of PVB/Ag in air, whereas a longer time was required for the PVB/ceramic composite than for PVB. Moreover, dual effects of ceramic and Ag on the thermal degradation of PVB were observed for PVB/ceramic/Ag composites. In addition, the catalytic effects of ceramic and Ag on the degradation reaction of PVB in air were verified with a kinetic analysis.

Kinetic investigation of ZrO2, Y2O3, and Ni on poly(vinyl butyral) thermal degradation using nonlinear heating functions

“…The effects of ceramics, such as glass ceramic, on PVB thermal degradation were studied in our previous work. 6 The catalytic effects of the ceramics on PVB degradation were shown certain influences to accelerate the reaction rate in lower temperatures. These analytical data can be further applied to interpret and demonstrate the mechanism of PVB thermal degradation and binder removal process.…”

Application of multi-channel in situ infrared spectroscopy: the case of PVB thermal aging

“…The main decomposition pathway at high temperature starts from branched-chain breakage and the subsequent free radical cross-linking reaction, resulting in the loss of molecular weight of PVB and the formation and volatilization of small molecules. 21,29 Saravanan, 30 Liau, 22 and Grachev 31 also proposed the corresponding thermal degradation reaction mechanism of PVB.…”

“…Liau 21,22 used TG method to calculate the E a of PVB in the range of 181-200 kJ mol −1 . Ivanov 23 studied the E a value of thermal degradation in different temperature ranges from 70-201 kJ mol −1 .…”

Optimal Heating Strategies of Polymer Binder Burnout Process Using Dynamic Optimization Scheme

“…The effects of these parameters on the polymer thermal degradation were analyzed using several analytical techniques, such as thermogravimetry (TG), Fourier transform infrared spectroscopy (FT−IR), mass spectrometry (MS), and gel permeation chromatography (GPC). − The composition effects of ceramic and metal on poly(vinyl butyral) (PVB) binder thermal degradation were discussed by Liau et al The volatile products of the polymer degradation were resolved, and the kinetics of the degradation reaction was analyzed by data measured from these analytical techniques. , The polymer degradation mechanisms and kinetic parameters of the Arrhenius equation were determined in their studies. The surface interactions, such as the catalytic effects of different ceramics on polymer binder degradation, were discussed from the studies. , …”

“…The surface interactions, such as the catalytic effects of different ceramics on polymer binder degradation, were discussed from the studies. 5,7 The investigations of the physical phenomena of the polymer binder removal were focused on the mass transport of the volatile gas during the polymer burnout period. The mechanistic description of the volatile gas diffusing from inside the void space of the ceramic to the body surface was reported.…”