Вивчення впливу низьких температур на матеріали із полімерним покриттям спеціального призначення в статичних умовах
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Дата
2023
Автори
Михайлова, Ніна
Привала, Валерій
Лущевська, Олена
Mihailova, Nina
Privala, Valerii
Lushchevska, Olena
Назва журналу
Номер ISSN
Назва тому
Видавець
Хмельницький національний університет
Анотація
В статті проаналізовано результати дослідження впливу низьких температур в діапазоні від -100С до -
400С на проби матеріалів, які розглядаються як вірогідні для створення ізолюючих костюмів для слюсарівапаратників хімічних виробництв. Для проведення досліджень авторами публікації розроблена відповідна методологія, яка ґрунтується на використанні оригінальної дослідної установки. За результатами досліджень визначені ті матеріали, які є найбільш стійкими до впливу низьких температур, і які можуть бути рекомендовані для виготовлення ізолюючих захисних костюмів для працівників хімічних виробництв.
The domestic chemical industry urgently needs the creation of special high-class protective clothing that would allow working in extreme conditions without endangering the life and health of employees. In previous publications, it was determined that the necessary comprehensive protection against the effects of harmful production factors is provided by the creation and use of an insulating suit, which should become a barrier that prevents the penetration, and therefore the influence of mineral acids, alkalis. , ammonia, salt solutions, etc. of different concentrations. That is, it is about the creation of special clothing with the required level of protection and preservation of such basic protective indicators as chemical resistance and impermeability of the material while preserving the tightness of the product as a whole. Equipment for preparation and locksmiths for cleaning closed containers for transportation and storage of aggressive environments can simultaneously be exposed not only to mineral acids, alkalis, salt solutions based on them, but also to the remains of liquid ammonia, the evaporation of which occurs when temperatures drop, which leads to primary destruction polymer coating materials for special suits. For example, local destruction in contact with liquid ammonia leads to a sharp cooling (up to - 340C) of the contact surface of the material and destruction of the polymer coating, especially during operation (in dynamics), which can lead to a violation of the tightness of the protective product. Since workers have to perform a significant number of work movements while wearing an insulating suit, there was a need to investigate such an indicator as the resistance of materials to both dynamic loads and static conditions at low temperature. The research was conducted on samples of materials with a polymer coating, which belong to the class of special purpose artificial leathers of both foreign and domestic manufacturers.
The domestic chemical industry urgently needs the creation of special high-class protective clothing that would allow working in extreme conditions without endangering the life and health of employees. In previous publications, it was determined that the necessary comprehensive protection against the effects of harmful production factors is provided by the creation and use of an insulating suit, which should become a barrier that prevents the penetration, and therefore the influence of mineral acids, alkalis. , ammonia, salt solutions, etc. of different concentrations. That is, it is about the creation of special clothing with the required level of protection and preservation of such basic protective indicators as chemical resistance and impermeability of the material while preserving the tightness of the product as a whole. Equipment for preparation and locksmiths for cleaning closed containers for transportation and storage of aggressive environments can simultaneously be exposed not only to mineral acids, alkalis, salt solutions based on them, but also to the remains of liquid ammonia, the evaporation of which occurs when temperatures drop, which leads to primary destruction polymer coating materials for special suits. For example, local destruction in contact with liquid ammonia leads to a sharp cooling (up to - 340C) of the contact surface of the material and destruction of the polymer coating, especially during operation (in dynamics), which can lead to a violation of the tightness of the protective product. Since workers have to perform a significant number of work movements while wearing an insulating suit, there was a need to investigate such an indicator as the resistance of materials to both dynamic loads and static conditions at low temperature. The research was conducted on samples of materials with a polymer coating, which belong to the class of special purpose artificial leathers of both foreign and domestic manufacturers.
Опис
Ключові слова
ізолюючий костюм, статичні умови, хімічна промисловість, низькі температури, агресивне середовище, insulating suit, chemical industry, low temperatures, aggressive environment, static conditions
Бібліографічний опис
Михайлова Н. Вивчення впливу низьких температур на матеріали із полімерним покриттям спеціального призначення в статичних умовах / Н. Михайлова, В. Привала, О. Лущевська // Вісник Хмельницького національного університету. Технічні науки. – 2023. – № 1, т. 1. – С. 289-293.