Thermal debinding behavior of a low-toxic DMAA polymer for gelcast ceramic parts based on TG-FTIR and kinetic modeling.

ABSTRACT: In this work, the pyrolysis characteristics of a low-toxic N,N-dimethylacrylamide (DMAA) gel polymer was investigated through nonisothermal thermogravimetry (TG) and TG-FTIR analyses. Moreover, the thermal debinding kinetics of gelcast SiAlON ceramic parts was studied through three different kinetic models: the Coats-Redfern (C-R) method, distributed activation energy model (DAEM) and three-Gaussian-DAEM-reaction model (3-DAEM). The rationality and adaptability of the three models to the thermal debinding kinetics study were analyzed by comparison with experimental data. The results showed that three mass loss zones were observed in the temperature ranges of 100-320 °C, 320-520 °C and 520-600 °C, respectively, and the main pyrolysis gas products were CO₂, H_2</

SUBMITTER: Li J 

PROVIDER: S-EPMC9061881 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature