Бийский технологический институт (филиал) Алтайского государственного технического университета им. И.И. Ползунова (Кафедра машин и аппаратов химических и пищевых производств)
Бийск, Алтайский край, Россия
Барнаул, Алтайский край, Россия
Бийск, Алтайский край, Россия
Бийск, Алтайский край, Россия
Бийск, Алтайский край, Россия
Бийск, Алтайский край, Россия
Приведены результаты климатических испытаний однонаправленных базальтопластиков после выдержки в климатической камере GRONLAND при температуре 60 ºС и влажности 100% в течение 1, 2 и 3 мес. Показано, что в первый месяц механические свойства не меняются, после второго и третьего месяца экспозиции модуль упругости образцов возрастает на 6-10 %, предельная деформация уменьшается на 5-7%, прочность практически не изменяется. По результатам термомеханических исследований методом дифференциальной сканирующей калориметрии установлено постепенное повышение температуры стеклования образцов от 124.4 °С (1 мес.) до 125.8 °С (2 мес.) и 126.4 °С (3 мес.). Это свидетельствует о дополнительной полимеризации связующего в температурно-влажностных условиях климатической ка-меры. По результатам цифровой обработки микрофотографий поверхности образцов установлена качественная корреляция между изменением свойств и состоянием поверхности.
однонаправленные базальтопластики, климатическое старение, механические свойства, продольный изгиб, температура стеклования, диференциальная сканируюшая калориметрия, микрофотографии поверхности, цифровая об-работка.
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