Улучшенная гидрофобность для лучшего контроля коррозии за счет специальных самоорганизующихся молекулярных покрытий

   Целью данной работы было получение защитных пленок алкенилфосфоновой кислоты (АПК) в самоорганизующемся молекулярном слое (SАМ) на различных металлах с целью повышения коррозионной стойкости стальных поверхностей.

   В центре внимания работы было влияние состава сплава, а также условий формирования слоя и его последующей обработки с целью получения компактной нанопленки, способной контролировать коррозию металла в среде хлорид–ионов. Влияние параметров формирования слоя на его компактность и коррозионную стойкость характеризовали значениями угла смачивания водой, методами атомно–силовой микроскопии (АСМ), а также параметрами шероховатости. Для повышения компактности слоя АПК–САМ нанопленки подвергались термообработке при различных температурах и интервалах времени. Изменение характеристик слоя, вызванное температурой осаждения и последующей обработкой, было продемонстрировано с помощью углов смачивания влажных материалов и с помощью АСМ. Повышенный антикоррозионный эффект, вызванный правильными условиями подготовки, последующей обработкой, а также составом металла, характеризовался изменением параметров шероховатости, а также морфологии, визуализируемой методом АСМ. Результаты показали, что повышенная антикоррозионная активность компактных нанослоев обусловлена блокировкой активной зоны на поверхности металла за счет формирования барьера между агрессивной средой и поверхностью металла.

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