Thermal analysis of thermal insulating materials based on modified non-wood plant raw materials
Abstract
Thermal analysis of thermal insulating materials based on modified non-wood plant raw materials
Incoming article date: 19.10.2024The article is devoted to the systematic approach to the development of new composite building materials with lignocellulosic fillers, special attention is paid to the study of their thermal stability. The desire to increase the thermal stability of cellulosic materials implies the use of various modification methods, including acetylation and the use of flame retardants. The properties of monoethanolamine (NB)-trihydroxyborate (MEATHB) as a modifier to improve the fire resistance of thermal insulation materials based on stems of Sosnovsky's borer have been investigated. Experimental methods include thermogravimetric and differential scanning analysis, which allowed the evaluation of thermal decomposition and thermochemical transformations of the raw materials used. The results show that pre-modification using MEATGB shifts the peaks of cellulose thermo-oxidative decomposition temperatures to higher ranges, indicating an increase in the thermal stability of the materials. It is also found that the combination of modification using polyurethane and casein binders improves the thermostatic characteristics, which opens new perspectives for the creation of biostable thermal insulation materials. Thus, the results of this work can serve as a basis for further research and development aimed at creating innovative composite materials with high temperature resistance and biostability using available and environmentally friendly plant raw materials.
Keywords: composite materials, lignocellulosic fillers, thermal stability, monoethanolamine(NB)-trihydroxyborate, biostability, thermal insulation materials, thermogravimetric analysis, polyurethane binder, casein glue