Study of thermophysical characteristics of composite sorption-active materials for life support systems of manned spacecraft and civil aviation

Abstract The method of differential thermal analysis (DTA) was used to study the heat resistance of composite sorption-active materials (CSAM) based on a matrix of fluoroplast and NaX crystallites. Decrease in the temperature of thermal destruction of the polymer matrix by about 90°C was found with...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. Conference series Vol. 1989; no. 1; pp. 12012 - 12016
Main Authors Ferapontova, L L, Zakharov, I V, Ferapontov, Y A, Kurzina, I A, Grunski, V N
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.08.2021
Subjects
Civil aviation
Crystallites
Differential thermal analysis
Heat conductivity
Heat resistance
Heat transfer
Life support systems
Manned spacecraft
Polymers
Sorption
Thermal conductivity
Thermal resistance
Thermophysical properties
Online AccessGet full text

Cover

More Information
Summary:Abstract The method of differential thermal analysis (DTA) was used to study the heat resistance of composite sorption-active materials (CSAM) based on a matrix of fluoroplast and NaX crystallites. Decrease in the temperature of thermal destruction of the polymer matrix by about 90°C was found with an increase in the NaX content in KCAM from 2 to 25% by weight. Using the original method, the thermal conductivity was also studied. The analysis of the totality of the obtained results suggests that the studied parameters depend on the ratio of adsorbent-filler/polymer matrix: with an increase in the binder content in the CSAM from 5 to 25 wt. % thermal conductivity decreases from 0.227 to 0.184 W/mk. This pattern is due to the growth of CSAM mesopores filled with air. The hypothesis is confirmed by the analysis of the secondary porous structure of KSAM
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1989/1/012012