کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8078779 | 1521482 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pickering emulsion: A novel template for microencapsulated phase change materials with polymer-silica hybrid shell
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pickering emulsion: A novel template for microencapsulated phase change materials with polymer-silica hybrid shell Pickering emulsion: A novel template for microencapsulated phase change materials with polymer-silica hybrid shell](/preview/png/8078779.png)
چکیده انگلیسی
MePCMs (microencapsulated phase change materials) with covalently bonded SiO2/polymer hybrid as shell were fabricated via Pickering emulsion polymerization stabilized solely by organically-modified SiO2 particles. Morphology and core-shell structure of these microcapsules were observed by scanning electron microscopy (SEM). Thermal properties of microencapsulated 1-dodecanol were determined using DSC (differential scanning calorimetry) and TGA (thermal gravimetric analysis). The results indicate that mass ratio of St (styrene)/DVB (divinylbenzene)/dodecanol has great effect on the morphology, inner structure, microencapsulation efficiency and durability of resultant MePCMs. When ratio of St/DVB/dodecanol was 5/1/12, dodecanol content of as much as 62.8% is obtained and the utility efficiency of dodecanol reaches 94.2%. The prepared MePCMs present good durability and thermal reliability. 2.2% of core material leached away the microcapsule after suspended in water for 10 days and 5.8% of core material leached after 2000 accelerated thermal cycling. Our study demonstrated that Pickering emulsion polymerization is a simple and robust method for the preparation of MePCMs with polymer-inorganic hybrids as shell.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 64, 1 January 2014, Pages 575-581
Journal: Energy - Volume 64, 1 January 2014, Pages 575-581
نویسندگان
Dezhong Yin, Li Ma, Jinjie Liu, Qiuyu Zhang,