An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests
Recent studies have indicated that the addition of a diluent significantly affect its mechanical properties and performance of a coating, but no works have been reported on the influence of diluent content on the Young’s modulus of a coating, and the evolution law between them is also not clear. To...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/4438087 |
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| author | Chao Xie Xiaoxu Lin Qicai Wang Bentian Yu Sheng Li |
| author_facet | Chao Xie Xiaoxu Lin Qicai Wang Bentian Yu Sheng Li |
| author_sort | Chao Xie |
| collection | DOAJ |
| description | Recent studies have indicated that the addition of a diluent significantly affect its mechanical properties and performance of a coating, but no works have been reported on the influence of diluent content on the Young’s modulus of a coating, and the evolution law between them is also not clear. To address the deficiency, polyurethane coatings (paint samples) with different diluent contents were prepared. Force-displacement curves and microscan images of the coatings were obtained by atomic force microscopy, and the Young’s modulus of the coatings was calculated on the basis of the indentation method, and positron annihilation lifetime spectroscopy was used to test the microstructure of the coatings. The results reveal that: (i) Young’s modulus of the coating initially increase and then decreases with diluent content increasing; (ii) the free-volume aperture size had a greater effect on Young’s modulus by grey correlation analysis. |
| format | Article |
| id | doaj-art-68ae59c8bd4540c2a7f63e2627a7d3ba |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-68ae59c8bd4540c2a7f63e2627a7d3ba2025-02-03T00:59:32ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/4438087An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based TestsChao Xie0Xiaoxu Lin1Qicai Wang2Bentian Yu3Sheng Li4Lanzhou Jiaotong UniversityLanzhou Jiaotong UniversityLanzhou Jiaotong UniversityLanzhou Jiaotong UniversityLanzhou Jiaotong UniversityRecent studies have indicated that the addition of a diluent significantly affect its mechanical properties and performance of a coating, but no works have been reported on the influence of diluent content on the Young’s modulus of a coating, and the evolution law between them is also not clear. To address the deficiency, polyurethane coatings (paint samples) with different diluent contents were prepared. Force-displacement curves and microscan images of the coatings were obtained by atomic force microscopy, and the Young’s modulus of the coatings was calculated on the basis of the indentation method, and positron annihilation lifetime spectroscopy was used to test the microstructure of the coatings. The results reveal that: (i) Young’s modulus of the coating initially increase and then decreases with diluent content increasing; (ii) the free-volume aperture size had a greater effect on Young’s modulus by grey correlation analysis.http://dx.doi.org/10.1155/2022/4438087 |
| spellingShingle | Chao Xie Xiaoxu Lin Qicai Wang Bentian Yu Sheng Li An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests Advances in Materials Science and Engineering |
| title | An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests |
| title_full | An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests |
| title_fullStr | An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests |
| title_full_unstemmed | An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests |
| title_short | An Investigation into the Evolution Law of Young’s Modulus of Polyurethane Coatings with Diluent Contents by Microstructure-Based Tests |
| title_sort | investigation into the evolution law of young s modulus of polyurethane coatings with diluent contents by microstructure based tests |
| url | http://dx.doi.org/10.1155/2022/4438087 |
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