The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products
The curing kinetics can influence the final macroscopic properties, particularly the three-point bending of the fiber-reinforced composite materials. In this research, the curing kinetics of commercially available glass fiber/epoxy resin prepregs were studied by non-isothermal differential scanning...
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MDPI AG
2021-08-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/16/4673 |
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| author | Lvtao Zhu Zhenxing Wang Mahfuz Bin Rahman Wei Shen Chengyan Zhu |
| author_facet | Lvtao Zhu Zhenxing Wang Mahfuz Bin Rahman Wei Shen Chengyan Zhu |
| author_sort | Lvtao Zhu |
| collection | DOAJ |
| description | The curing kinetics can influence the final macroscopic properties, particularly the three-point bending of the fiber-reinforced composite materials. In this research, the curing kinetics of commercially available glass fiber/epoxy resin prepregs were studied by non-isothermal differential scanning calorimetry (DSC). The curing kinetic parameters were obtained by fitting and the apparent activation energy E<sub>a</sub> of the prepreg, the pre-exponent factor, and the reaction order value obtained. A phenomenological <i>n</i>th-order curing reaction kinetic model was established according to Kissinger equation and Crane equation. Furthermore, the optimal curing temperature of the prepregs was obtained by the T-β extrapolation method. A vacuum hot pressing technique was applied to prepare composite laminates. The pre-curing, curing, and post-curing temperatures were 116, 130, and 153 °C respectively. In addition, three-point bending was used to test the specimens’ fracture behavior, and the surface morphology was analyzed. The results show that the differences in the mechanical properties of the samples are relatively small, indicating that the process settings are reasonable. |
| first_indexed | 2024-03-10T08:37:52Z |
| format | Article |
| id | doaj.art-337c788efc944ed19f70cb747ed92f03 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T08:37:52Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-337c788efc944ed19f70cb747ed92f032023-11-22T08:31:05ZengMDPI AGMaterials1996-19442021-08-011416467310.3390/ma14164673The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its ProductsLvtao Zhu0Zhenxing Wang1Mahfuz Bin Rahman2Wei Shen3Chengyan Zhu4College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, ChinaCollege of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, ChinaCollege of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, ChinaShaoxing Baojing Composite Materials Co., Ltd., Shaoxing 312000, ChinaCollege of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou 310018, ChinaThe curing kinetics can influence the final macroscopic properties, particularly the three-point bending of the fiber-reinforced composite materials. In this research, the curing kinetics of commercially available glass fiber/epoxy resin prepregs were studied by non-isothermal differential scanning calorimetry (DSC). The curing kinetic parameters were obtained by fitting and the apparent activation energy E<sub>a</sub> of the prepreg, the pre-exponent factor, and the reaction order value obtained. A phenomenological <i>n</i>th-order curing reaction kinetic model was established according to Kissinger equation and Crane equation. Furthermore, the optimal curing temperature of the prepregs was obtained by the T-β extrapolation method. A vacuum hot pressing technique was applied to prepare composite laminates. The pre-curing, curing, and post-curing temperatures were 116, 130, and 153 °C respectively. In addition, three-point bending was used to test the specimens’ fracture behavior, and the surface morphology was analyzed. The results show that the differences in the mechanical properties of the samples are relatively small, indicating that the process settings are reasonable.https://www.mdpi.com/1996-1944/14/16/4673prepregglass fiber/epoxy resincuring kineticsbending properties |
| spellingShingle | Lvtao Zhu Zhenxing Wang Mahfuz Bin Rahman Wei Shen Chengyan Zhu The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products Materials prepreg glass fiber/epoxy resin curing kinetics bending properties |
| title | The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products |
| title_full | The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products |
| title_fullStr | The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products |
| title_full_unstemmed | The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products |
| title_short | The Curing Kinetics of E-Glass Fiber/Epoxy Resin Prepreg and the Bending Properties of Its Products |
| title_sort | curing kinetics of e glass fiber epoxy resin prepreg and the bending properties of its products |
| topic | prepreg glass fiber/epoxy resin curing kinetics bending properties |
| url | https://www.mdpi.com/1996-1944/14/16/4673 |
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