کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
11001196 1431570 2019 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of microencapsulated phase change materials on the performance of asphalt binders
ترجمه فارسی عنوان
اثرات مواد تغییر فاز حاوی کیفی کپسوله شده بر عملکرد آسفالت باندینگ
کلمات کلیدی
مواد تغلیظ شده فازی میکرو کیسه ای، آسفالت، عملکرد قابل تنظیم با درجه حرارت ظرفیت گرمای ویژه،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This work aims at evaluating the physical properties, storage stability, and temperature-adjustable performance of asphalt binder modified with microencapsulated phase-change materials (micro-PCMs). Micro-PCMs with melamine-formaldehyde (MF) resin shells and n-tetradecane cores are fabricated through in situ polymerization. The MF resin shell successfully encapsulates the n-tetradecane core. The prepared micro-PCMs have spherical profiles, smooth surfaces, and particle diameters of 100 μm-200 μm. In addition, the micro-PCMs exhibit high phase-change enthalpy and excellent thermal stabilities. A neat asphalt binder is modified with various amounts of micro-PCMs modifiers. The addition of micro-PCMs does not considerably affect the physical properties of the modified asphalt. However, excessive micro-PCMs content will adversely affect the storage stability of asphalts modified with micro-PCMs. The temperature change rate of the micro-PCMs modified asphalt near the phase-transition temperature of the micro-PCMs decreases with the increase in micro-PCMs content. The specific heat capacity of the micro-PCM-modified asphalt shows a large peak near the phase-transition temperature of the micro-PCMs, and the peak value of the asphalt modified with micro-PCMs increases with increasing micro-PCMs content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 132, March 2019, Pages 931-940
نویسندگان
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