Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier
This study focuses on the thermal performance properties and mechanism by which polyurethane Microencapsulated phase-change materials (MEPCMs) modify bitumen. The MEPCMs were prepared via interfacial polymerization, with butyl stearate as the core material and polyurethane as the shell material. Bit...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523004291 |
| _version_ | 1797454652275425280 |
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| author | Hui-Ru Wang Yan-Min Wang Fei Huang Zi-Hua Zhang Xi-Long Wang Hui-Sheng Liu Xiang-Ze Kong Fan-Jun Ning Fan-Nan Jia |
| author_facet | Hui-Ru Wang Yan-Min Wang Fei Huang Zi-Hua Zhang Xi-Long Wang Hui-Sheng Liu Xiang-Ze Kong Fan-Jun Ning Fan-Nan Jia |
| author_sort | Hui-Ru Wang |
| collection | DOAJ |
| description | This study focuses on the thermal performance properties and mechanism by which polyurethane Microencapsulated phase-change materials (MEPCMs) modify bitumen. The MEPCMs were prepared via interfacial polymerization, with butyl stearate as the core material and polyurethane as the shell material. Bitumen modified by MEPCMs was prepared using a high-speed shearing method. The modification mechanism was investigated using various microscopic and macroscopic techniques, including Atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), and Fluorescence microscope (FM) tests. The research results show that MEPCMs can improve the rheological properties, anti-aging properties, and temperature sensitivity of the modified bitumen. FTIR analysis indicates that there are no chemical reactions between MEPCMs and bitumen, while AFM topography shows the appearance of smaller ''bee structures'' on the surface of MEPCMs-modified bitumen. Additionally, the research reveals that MEPCMs can be evenly distributed in the base bitumen. Finally, the maximum temperature difference between the control bitumen and 3% MEPCMs-modified bitumen is 13.9 ℃. |
| first_indexed | 2024-03-09T15:40:10Z |
| format | Article |
| id | doaj.art-c25efd162e354759884131fcbff3ece8 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-09T15:40:10Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-c25efd162e354759884131fcbff3ece82023-11-25T04:48:00ZengElsevierCase Studies in Construction Materials2214-50952023-12-0119e02249Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifierHui-Ru Wang0Yan-Min Wang1Fei Huang2Zi-Hua Zhang3Xi-Long Wang4Hui-Sheng Liu5Xiang-Ze Kong6Fan-Jun Ning7Fan-Nan Jia8China Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaSchool of Civil Engineering, Shandong Jiaotong University, Jinan, Shandong Province 250300, China; Corresponding author.China Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaChina Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaChina Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaChina Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaChina Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaChina Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaChina Construction Industrial & ENERGY Engineering Group Co., Ltd., Jinan, Shandong Province 250014, ChinaThis study focuses on the thermal performance properties and mechanism by which polyurethane Microencapsulated phase-change materials (MEPCMs) modify bitumen. The MEPCMs were prepared via interfacial polymerization, with butyl stearate as the core material and polyurethane as the shell material. Bitumen modified by MEPCMs was prepared using a high-speed shearing method. The modification mechanism was investigated using various microscopic and macroscopic techniques, including Atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), and Fluorescence microscope (FM) tests. The research results show that MEPCMs can improve the rheological properties, anti-aging properties, and temperature sensitivity of the modified bitumen. FTIR analysis indicates that there are no chemical reactions between MEPCMs and bitumen, while AFM topography shows the appearance of smaller ''bee structures'' on the surface of MEPCMs-modified bitumen. Additionally, the research reveals that MEPCMs can be evenly distributed in the base bitumen. Finally, the maximum temperature difference between the control bitumen and 3% MEPCMs-modified bitumen is 13.9 ℃.http://www.sciencedirect.com/science/article/pii/S2214509523004291Microencapsulated phase-change materialsModified bitumenThermal propertiesRheological behaviorsAtomic force microscopy (AFM)Bee structure |
| spellingShingle | Hui-Ru Wang Yan-Min Wang Fei Huang Zi-Hua Zhang Xi-Long Wang Hui-Sheng Liu Xiang-Ze Kong Fan-Jun Ning Fan-Nan Jia Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier Case Studies in Construction Materials Microencapsulated phase-change materials Modified bitumen Thermal properties Rheological behaviors Atomic force microscopy (AFM) Bee structure |
| title | Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier |
| title_full | Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier |
| title_fullStr | Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier |
| title_full_unstemmed | Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier |
| title_short | Properties and mechanism of phase-change bitumen with polyurethane shell microencapsulated as modifier |
| title_sort | properties and mechanism of phase change bitumen with polyurethane shell microencapsulated as modifier |
| topic | Microencapsulated phase-change materials Modified bitumen Thermal properties Rheological behaviors Atomic force microscopy (AFM) Bee structure |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523004291 |
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