My sample is a zeolitic membrane which includes Al, Si, Na, O, ethylene glycol, TMAdaOH (N,N,N-Trimethyladamantan-1-aminium hydroxide), trimethyl amine, and alpha alumina as a substrate. TGA occurs in 20-600 centigrade degree and in air. I expect a small weight loss and I face with this increase.
Is it related to ethylene glycol boiling temp and intensity to react with ingredients ?
or Is it possible to face such a result?
The weight gain may be due to oxidation of your samples or it may react with nitrogen to form some compounds, or due to not correct calibration.
Thanks for your response, how can I find that reactions? That is so important for me
Possible generic reasons for weight gain detection in TGA were discussed elsewere at this forum:
https://www.researchgate.net/post/Why_my_TGA_graph_shows_a_weight_gain https://www.researchgate.net/post/What_is_the_process_to_get_a_weight_Gain_in_TGA https://www.researchgate.net/post/What_are_the_reasons_for_weight_gain_in_TG_curve_My_sample_is_Cement_and_the_weight_gain_is_in_the_temp_range_of_400_to_650_degree
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