Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation
A series of microcellular polypropylene (PP) with different bubble size and expansion ratio were prepared by supercritical CO2 moulding compression foaming, and their compressive, flexural and tensile properties were measured. A comprehensive calculation model for the mechanical properties of polyme...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941822003336 |
| _version_ | 1798020904753561600 |
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| author | Yichong Chen Jiabao Yu Yijie Ling Shun Yao Xiulei Jiang Dongdong Hu Huifeng Wang Ling Zhao |
| author_facet | Yichong Chen Jiabao Yu Yijie Ling Shun Yao Xiulei Jiang Dongdong Hu Huifeng Wang Ling Zhao |
| author_sort | Yichong Chen |
| collection | DOAJ |
| description | A series of microcellular polypropylene (PP) with different bubble size and expansion ratio were prepared by supercritical CO2 moulding compression foaming, and their compressive, flexural and tensile properties were measured. A comprehensive calculation model for the mechanical properties of polymer foam based on tetradecahedron structure was further established, and the error between the simulation results and the experimental results is less than 25%. Based on the model, the contributions of the elastic stress of polymer matrix and counter-acting force of gas to the elastic modulus were quantitatively analyzed for the first time. The results show that the smaller bubble size can improve the compressive elastic modulus and flexural elastic modulus but has little effect on the tensile elastic modulus. At the same time, the counter-acting force of gas has a positive effect on the compressive elastic modulus, but has a weakening effect on the tensile elastic modulus, and has almost no effect on the flexural elastic modulus. Finally, the generality of the above model is verified by the prediction for elastic modulus of different polymer foams. |
| first_indexed | 2024-04-11T17:05:16Z |
| format | Article |
| id | doaj.art-da2b5a4e345d4f7ab5e109b94d6462df |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-04-11T17:05:16Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-da2b5a4e345d4f7ab5e109b94d6462df2022-12-22T04:13:03ZengElsevierPolymer Testing0142-94182022-12-01116107812Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulationYichong Chen0Jiabao Yu1Yijie Ling2Shun Yao3Xiulei Jiang4Dongdong Hu5Huifeng Wang6Ling Zhao7State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, PR China; School of Information Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR ChinaState Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, PR China; Shincell New Material Co., Ltd., Suzhou, 215000, PR ChinaState Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, PR ChinaState Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, PR ChinaShincell New Material Co., Ltd., Suzhou, 215000, PR ChinaState Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, PR ChinaSchool of Information Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR ChinaState Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, PR China; Corresponding author.A series of microcellular polypropylene (PP) with different bubble size and expansion ratio were prepared by supercritical CO2 moulding compression foaming, and their compressive, flexural and tensile properties were measured. A comprehensive calculation model for the mechanical properties of polymer foam based on tetradecahedron structure was further established, and the error between the simulation results and the experimental results is less than 25%. Based on the model, the contributions of the elastic stress of polymer matrix and counter-acting force of gas to the elastic modulus were quantitatively analyzed for the first time. The results show that the smaller bubble size can improve the compressive elastic modulus and flexural elastic modulus but has little effect on the tensile elastic modulus. At the same time, the counter-acting force of gas has a positive effect on the compressive elastic modulus, but has a weakening effect on the tensile elastic modulus, and has almost no effect on the flexural elastic modulus. Finally, the generality of the above model is verified by the prediction for elastic modulus of different polymer foams.http://www.sciencedirect.com/science/article/pii/S0142941822003336Microcellular polypropyleneMechanical propertyBubble structureFinite element calculationCounter-acting force of gas |
| spellingShingle | Yichong Chen Jiabao Yu Yijie Ling Shun Yao Xiulei Jiang Dongdong Hu Huifeng Wang Ling Zhao Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation Polymer Testing Microcellular polypropylene Mechanical property Bubble structure Finite element calculation Counter-acting force of gas |
| title | Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation |
| title_full | Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation |
| title_fullStr | Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation |
| title_full_unstemmed | Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation |
| title_short | Comprehensive analysis of mechanical properties of microcellular polypropylene: Experiment and simulation |
| title_sort | comprehensive analysis of mechanical properties of microcellular polypropylene experiment and simulation |
| topic | Microcellular polypropylene Mechanical property Bubble structure Finite element calculation Counter-acting force of gas |
| url | http://www.sciencedirect.com/science/article/pii/S0142941822003336 |
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