Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure
With the development of polymer science, more attention is being paid to the longevity of polymer products. Slow crack growth (SCG), one of the most important factors that reveal the service life of the products, has been investigated widely in the past decades. Here, we manufactured an isotactic po...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/11/2746 |
| _version_ | 1797547308275990528 |
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| author | Mingjin Liu Jiaxu Luo Jin Chen Xueqin Gao Qiang Fu Jie Zhang |
| author_facet | Mingjin Liu Jiaxu Luo Jin Chen Xueqin Gao Qiang Fu Jie Zhang |
| author_sort | Mingjin Liu |
| collection | DOAJ |
| description | With the development of polymer science, more attention is being paid to the longevity of polymer products. Slow crack growth (SCG), one of the most important factors that reveal the service life of the products, has been investigated widely in the past decades. Here, we manufactured an isotactic polypropylene (iPP) sample with a novel shear layer–spherulites layer alternated structure using multiflow vibration injection molding (MFVIM). However, the effect of the alternated structure on the SCG behavior has never been reported before. Surprisingly, the results showed that the resistivity of polymer to SCG can be enhanced remarkably due to the special alternated structure. Moreover, this sample shows unique slow crack propagation behavior in contrast to the sample with the same thickness of shear layer, presenting multiple microcracks in the spherulites layer, which can explain the reason of the resistivity improvement of polymer to SCG. |
| first_indexed | 2024-03-10T14:42:30Z |
| format | Article |
| id | doaj.art-f960959bd53a498eb50c47e23dbfb57e |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T14:42:30Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-f960959bd53a498eb50c47e23dbfb57e2023-11-20T21:41:56ZengMDPI AGPolymers2073-43602020-11-011211274610.3390/polym12112746Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated StructureMingjin Liu0Jiaxu Luo1Jin Chen2Xueqin Gao3Qiang Fu4Jie Zhang5State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, ChinaWith the development of polymer science, more attention is being paid to the longevity of polymer products. Slow crack growth (SCG), one of the most important factors that reveal the service life of the products, has been investigated widely in the past decades. Here, we manufactured an isotactic polypropylene (iPP) sample with a novel shear layer–spherulites layer alternated structure using multiflow vibration injection molding (MFVIM). However, the effect of the alternated structure on the SCG behavior has never been reported before. Surprisingly, the results showed that the resistivity of polymer to SCG can be enhanced remarkably due to the special alternated structure. Moreover, this sample shows unique slow crack propagation behavior in contrast to the sample with the same thickness of shear layer, presenting multiple microcracks in the spherulites layer, which can explain the reason of the resistivity improvement of polymer to SCG.https://www.mdpi.com/2073-4360/12/11/2746iPPalternated structureslow crack growth |
| spellingShingle | Mingjin Liu Jiaxu Luo Jin Chen Xueqin Gao Qiang Fu Jie Zhang Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure Polymers iPP alternated structure slow crack growth |
| title | Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure |
| title_full | Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure |
| title_fullStr | Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure |
| title_full_unstemmed | Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure |
| title_short | Unique Slow Crack Growth Behavior of Isotactic Polypropylene: The Role of Shear Layer-Spherulites Layer Alternated Structure |
| title_sort | unique slow crack growth behavior of isotactic polypropylene the role of shear layer spherulites layer alternated structure |
| topic | iPP alternated structure slow crack growth |
| url | https://www.mdpi.com/2073-4360/12/11/2746 |
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