Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability

Smagin, A.V.; Budnikov, V.I.; Sadovnikova, N.B.; Kirichenko, A.V.; Belyaeva, E.A.; Krivtsova, V.N.

Авторы: Smagin A.V., Budnikov V.I., Sadovnikova N.B., Kirichenko A.V., Belyaeva E.A., Krivtsova V.N.
Журнал: Polymers
Том: 14
Год издания: 2022
Издательство: MDPI
Местоположение издательства: Basel, Switzerland
Первая страница: 1
Последняя страница: 39
Номер статьи: 4665
DOI: 10.3390/polym14214665
Аннотация: The research analyzes technological properties and stability of innovative gel-forming polymeric materials for complex soil conditioning. These materials combine improvements in the water retention, dispersity, hydraulic properties, anti-erosion and anti-pathogenic protection of thesoil along with a high resistance to negative environmental factors (osmotic stress, compression in the pores, microbial biodegradation). Laboratory analysis was based on an original system of instrumental methods, new mathematical models, and the criteria and gradations of the quality of gels and their compositions with mineral soil substrates. The new materials have a technologicallyoptimal degree of swelling (200–600 kg/kg in pure water and saline solutions with 1–3 g/L TDS), high values of surface energy (>130 kJ/kg), specific surface area (>600 m2/g), threshold of gel collapse (>80 mmol/L), half-life (>5 years), and a powerful fungicidal effect (EC50 biocides doses of 10–60ppm). Due to these properties, the new gel-forming materials, in small doses of 0.1–0.3% increased the water retention and dispersity of sandy substrates to the level of loams, reduced the saturated hydraulic conductivity 20–140 times, suppressed the evaporation 2–4 times, and formed a windproof soil crust (strength up to 100 kPa). These new methodological developments andrecommendations are useful for the complex laboratory testing of hydrogels in small (5–10 g) soil samples.
Добавил в систему: Смагин Андрей Валентинович

	ИСТИНА	Войти в систему Регистрация
	ФНКЦ РР
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ФНКЦ РР

Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stabilityстатья

Прикрепленные файлы