کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4995974 1459435 2017 7 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Synthesis and thermal properties of novel solid-solid phase change materials with comb-polyurethane block copolymer structure for thermal energy storage
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Synthesis and thermal properties of novel solid-solid phase change materials with comb-polyurethane block copolymer structure for thermal energy storage
چکیده انگلیسی
A series of novel comb-polyurethane phase change materials (CP-PCMs) with poly(ethylene glycol) (PEG) as side chain were synthesized through the reaction between diethanolamine-modified methoxypolyethylene glycol (DMPEG) with diisocyanate and 1,4-butanediol (BDO). The structure and phase change property of CP-PCM were characterized by gel permeation chromatography (GPC), 1H nuclear magnetic resonance (1H NMR), Fourier transform infrared (FTIR) spectroscopy, and polarization optical microscopy (POM). The 1H NMR and FTIR spectra confirmed the success synthesis of CP-PCM. The POM images showed that CP-PCM possessed a completely crystalline structure and smaller spherulites compared with the pristine methoxypolyethylene glycol (MPEG). The influence of phase change property of CP-PCMs was also investigated using differential scanning calorimetry (DSC). The results showed that the CP-PCM synthesized using isophorone diisocyanate (IPDI) or 1,6-hexamethylene diisocyanate (HDI) as diisocyanate and MPEG with molecular weight of 5000 as soft segment possessed optimal phase change property. In addition, the phase change enthalpy and temperature of CP-PCMs decreased as the weight percentage of MPEG decreased.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 651, 10 May 2017, Pages 58-64
نویسندگان
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