A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modifying Heracleum sosnowskyi Stems with Monoethanolamine(N→B)-trihydroxyborate for Manufacturing Biopositive Building Materials
One of the modern trends in construction is the orientation towards biopositive building materials and technologies. In this regard, the use of plant raw materials for the production of building materials is of relevance. The aim of the research was to study the possibility of chemical modification of the ligno-carbohydrate complex of Heracleum sosnovsky to obtain biostable plant raw materials. The hypothesis was formulated, according to which a significant increase in the biostability of plant raw materials based on Heracleum can be achieved by modifying it with a four-coordination boron compound–monoethanolamine(N→B)-trihydroxyborate. This goal was achieved through laboratory studies of the sorption of the modifier, studying the microstructure of the samples and carrying out IR spectroscopy. As a result of the research, it was found that the degree of modification of Heracleum stems multiply depends on the modification temperature and drying temperature, the corresponding dependences have been established. It was found that under the action of the modifier, depolymerization of lignin and hemicellulose occurs, as well as the chemical interaction of the reagent with the substrate. Analysis of the microstructure indicates a uniform distribution of the modifier in the intercellular space. The novelty of the conducted research consists in the substantiation and experimental confirmation of the possibility of increasing the biostability of plant raw materials—Heracleum. The significance of the result lies in determining the optimal parameters of the modification process.
Modifying Heracleum sosnowskyi Stems with Monoethanolamine(N→B)-trihydroxyborate for Manufacturing Biopositive Building Materials
One of the modern trends in construction is the orientation towards biopositive building materials and technologies. In this regard, the use of plant raw materials for the production of building materials is of relevance. The aim of the research was to study the possibility of chemical modification of the ligno-carbohydrate complex of Heracleum sosnovsky to obtain biostable plant raw materials. The hypothesis was formulated, according to which a significant increase in the biostability of plant raw materials based on Heracleum can be achieved by modifying it with a four-coordination boron compound–monoethanolamine(N→B)-trihydroxyborate. This goal was achieved through laboratory studies of the sorption of the modifier, studying the microstructure of the samples and carrying out IR spectroscopy. As a result of the research, it was found that the degree of modification of Heracleum stems multiply depends on the modification temperature and drying temperature, the corresponding dependences have been established. It was found that under the action of the modifier, depolymerization of lignin and hemicellulose occurs, as well as the chemical interaction of the reagent with the substrate. Analysis of the microstructure indicates a uniform distribution of the modifier in the intercellular space. The novelty of the conducted research consists in the substantiation and experimental confirmation of the possibility of increasing the biostability of plant raw materials—Heracleum. The significance of the result lies in determining the optimal parameters of the modification process.
Modifying Heracleum sosnowskyi Stems with Monoethanolamine(N→B)-trihydroxyborate for Manufacturing Biopositive Building Materials
Lecture Notes in Civil Engineering
Akimov, Pavel (editor) / Vatin, Nikolai (editor) / Stepina, Irina (author) / Sodomon, Marc (author) / Semenov, Vyacheslav (author) / Dorzhieva, Elizaveta (author) / Titova, Irina (author)
2021-11-09
8 pages
Article/Chapter (Book)
Electronic Resource
English
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