Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent
Promoted polymerization of Phthalonitrile containing benzoxazine (BA-ph) was designed on basis of the catalysis performance of a type of aniline curing agent (2,6-bis(4-aminophenoxy)benzonitrile (BAB)). The curing processes and curing behaviors of BA-ph with BAB were investigated by differential sca...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941822000162 |
| _version_ | 1819291543480041472 |
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| author | Xiaoqian Xu Mingzhen Xu Tian Liu Dengxun Ren Xiaobo Liu |
| author_facet | Xiaoqian Xu Mingzhen Xu Tian Liu Dengxun Ren Xiaobo Liu |
| author_sort | Xiaoqian Xu |
| collection | DOAJ |
| description | Promoted polymerization of Phthalonitrile containing benzoxazine (BA-ph) was designed on basis of the catalysis performance of a type of aniline curing agent (2,6-bis(4-aminophenoxy)benzonitrile (BAB)). The curing processes and curing behaviors of BA-ph with BAB were investigated by differential scanning calorimetry (DSC) and gelatin time. With the assistance of orthogonal test analysis method, main factors that affected the pre-polymerization of BA-ph were studied and the appropriate pre-polymerization conditions were determined. According to the results of dynamic rheological analysis (DRA) and Fourier transform infrared spectroscopy (FTIR), possible curing mechanism of BA-ph with BAB were proposed. The results show that BAB could reduce the prepolymerization temperature of BA-ph resin, and increase its polymerization rate and crosslinking degree, and the BA-ph/BAB polymer mainly formed the aromatic heterocyclic structure of triazine rings, phthalocyanine rings and polyisoindoline rings. Then, thermal stability of BA-ph (BAB15%) polymers pretreated at different temperatures and prepared at 200 °C was analyzed to understand the cross-linked structures. Results indicated that BA-ph (BAB15%) polymers exhibit outstanding thermal properties (T5%>410 °C and integral program decomposition temperature (IPDT) reached 3342 °C). Mechanical properties and thermomechanical properties of glass fiber reinforced BA-ph composites were also investigated and exhibited excellent mechanical properties, to further reveal the effects of BAB on the polymerization of BA-ph resin and expand the application of high-performance resin-based composites. |
| first_indexed | 2024-12-24T03:40:19Z |
| format | Article |
| id | doaj.art-b5e6d1c58679407b833bdc3812d5bb0f |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-24T03:40:19Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-b5e6d1c58679407b833bdc3812d5bb0f2022-12-21T17:16:56ZengElsevierPolymer Testing0142-94182022-03-01107107487Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agentXiaoqian Xu0Mingzhen Xu1Tian Liu2Dengxun Ren3Xiaobo Liu4School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, PR ChinaCorresponding author.; School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, PR ChinaSchool of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, PR ChinaSchool of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, PR ChinaCorresponding author.; School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, PR ChinaPromoted polymerization of Phthalonitrile containing benzoxazine (BA-ph) was designed on basis of the catalysis performance of a type of aniline curing agent (2,6-bis(4-aminophenoxy)benzonitrile (BAB)). The curing processes and curing behaviors of BA-ph with BAB were investigated by differential scanning calorimetry (DSC) and gelatin time. With the assistance of orthogonal test analysis method, main factors that affected the pre-polymerization of BA-ph were studied and the appropriate pre-polymerization conditions were determined. According to the results of dynamic rheological analysis (DRA) and Fourier transform infrared spectroscopy (FTIR), possible curing mechanism of BA-ph with BAB were proposed. The results show that BAB could reduce the prepolymerization temperature of BA-ph resin, and increase its polymerization rate and crosslinking degree, and the BA-ph/BAB polymer mainly formed the aromatic heterocyclic structure of triazine rings, phthalocyanine rings and polyisoindoline rings. Then, thermal stability of BA-ph (BAB15%) polymers pretreated at different temperatures and prepared at 200 °C was analyzed to understand the cross-linked structures. Results indicated that BA-ph (BAB15%) polymers exhibit outstanding thermal properties (T5%>410 °C and integral program decomposition temperature (IPDT) reached 3342 °C). Mechanical properties and thermomechanical properties of glass fiber reinforced BA-ph composites were also investigated and exhibited excellent mechanical properties, to further reveal the effects of BAB on the polymerization of BA-ph resin and expand the application of high-performance resin-based composites.http://www.sciencedirect.com/science/article/pii/S0142941822000162PhthalonitrileBenzoxazineCuring behaviorsFiber-reinforced compositesThermal stability |
| spellingShingle | Xiaoqian Xu Mingzhen Xu Tian Liu Dengxun Ren Xiaobo Liu Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent Polymer Testing Phthalonitrile Benzoxazine Curing behaviors Fiber-reinforced composites Thermal stability |
| title | Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent |
| title_full | Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent |
| title_fullStr | Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent |
| title_full_unstemmed | Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent |
| title_short | Understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent |
| title_sort | understanding the curing behaviors and properties of phthalonitrile containing benzoxazine with a new type of aniline curing agent |
| topic | Phthalonitrile Benzoxazine Curing behaviors Fiber-reinforced composites Thermal stability |
| url | http://www.sciencedirect.com/science/article/pii/S0142941822000162 |
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