Влияние марки полимера низкой плотности на температурный переход и зарядовое поведение воска как твердожидкого теплоаккумулятора
Авторы
DOI:
https://doi.org/10.31489/2024No2/14-21Ключевые слова:
разложение, спектры, углеводороды, плавление, затвердевание, термическиеАннотация
Первоначальная оценка загрузки для технического улучшения парафина в качестве теплоаккумулирующего материала проводится путем композитинга с группой пластиков низкой плотности. Оценка направлена на получение температурного перехода смеси, включая химический спектр и теплофизическое поведение. В смеси имеется дополнительный пик перехода после основного фазового перехода. Она колеблется в пределах 15,26–19,34 °C (плавление) и 11,98–9,45 °C (замерзание). Химические наблюдения указывают на хорошее соответствие, поскольку композит может быть образован без химической реакции. Более того, характеристика разложения предполагает, что смесь плавится раздельно. Для оценки заряда композит PW/LDPE имеет лучшие характеристики заряда с максимальным приращением около 25% по сравнению с PW. Он также имеет уникальный температурный профиль, изотермический профиль которого можно получить за короткое время. Однако композит PW/LLDPE имеет низкую зарядку, что приводит к более длительному заряду по сравнению с PW. Несмотря на различия, оба полимера имеют значительные шансы быть использованы в качестве стабилизаторов для HSM и могут быть адаптированы в соответствии с конкретными требованиями для применения в области аккумулирования тепла.
Ключевые слова: разложение, спектры, углеводороды, плавление, затвердевание, термические.
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