Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite
Although thermosetting polyphenylene oxide- (PPO) based composites with excellent dielectric properties have been widely accepted as superior resin matrices of high-performance copper clad laminate (CCL) for 5G network devices, there has been limited information regarding the composition–process–str...
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| Format: | Article |
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MDPI AG
2022-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/9/1752 |
| _version_ | 1797503214174601216 |
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| author | Xueyi Yu Zeming Fang Qianfa Liu Dan Li Yundong Meng Cheng Luo Ke Wang Zhiyong Lin |
| author_facet | Xueyi Yu Zeming Fang Qianfa Liu Dan Li Yundong Meng Cheng Luo Ke Wang Zhiyong Lin |
| author_sort | Xueyi Yu |
| collection | DOAJ |
| description | Although thermosetting polyphenylene oxide- (PPO) based composites with excellent dielectric properties have been widely accepted as superior resin matrices of high-performance copper clad laminate (CCL) for 5G network devices, there has been limited information regarding the composition–process–structure–property relationships of the systems. In this work, the effects of peroxide initiator concentration on the structure and dielectric properties of a free radical cured ultralow loss PPO/Triallyl isocyanate (TAIC) composite system were studied. As expected, the glass transition temperature (T<sub>g</sub>) and storage modulus increased with the advancing of crosslinking, whereas the dielectric loss showed an “abnormal” rise with the increase in crosslink density. Extensive studies were carried out by varying the initiator contents and characterizing the structure with spectroscopy, thermal analysis, and positron annihilation lifetime spectrum (PALS) techniques. The results show that the competition of polarity, crosslink density, free volume, and free TAIC are the key factors determining the dielectric properties of the composites. |
| first_indexed | 2024-03-10T03:47:20Z |
| format | Article |
| id | doaj.art-e8cdad7f5d874491b666133a796e2d4b |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T03:47:20Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-e8cdad7f5d874491b666133a796e2d4b2023-11-23T09:05:44ZengMDPI AGPolymers2073-43602022-04-01149175210.3390/polym14091752Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based CompositeXueyi Yu0Zeming Fang1Qianfa Liu2Dan Li3Yundong Meng4Cheng Luo5Ke Wang6Zhiyong Lin7School for System Design and Intelligent Manufacturing, Southern University of Science and Technology, Shenzhen 518055, ChinaSchool for System Design and Intelligent Manufacturing, Southern University of Science and Technology, Shenzhen 518055, ChinaNational Engineering Research Center of Electronic Circuits Base Materials, Shengyi Technology Co., Ltd., Dongguan 523000, ChinaNational Engineering Research Center of Electronic Circuits Base Materials, Shengyi Technology Co., Ltd., Dongguan 523000, ChinaNational Engineering Research Center of Electronic Circuits Base Materials, Shengyi Technology Co., Ltd., Dongguan 523000, ChinaNational Engineering Research Center of Electronic Circuits Base Materials, Shengyi Technology Co., Ltd., Dongguan 523000, ChinaSchool for System Design and Intelligent Manufacturing, Southern University of Science and Technology, Shenzhen 518055, ChinaCollege of Materials Science & Engineering, Huaqiao University, Xiamen 361021, ChinaAlthough thermosetting polyphenylene oxide- (PPO) based composites with excellent dielectric properties have been widely accepted as superior resin matrices of high-performance copper clad laminate (CCL) for 5G network devices, there has been limited information regarding the composition–process–structure–property relationships of the systems. In this work, the effects of peroxide initiator concentration on the structure and dielectric properties of a free radical cured ultralow loss PPO/Triallyl isocyanate (TAIC) composite system were studied. As expected, the glass transition temperature (T<sub>g</sub>) and storage modulus increased with the advancing of crosslinking, whereas the dielectric loss showed an “abnormal” rise with the increase in crosslink density. Extensive studies were carried out by varying the initiator contents and characterizing the structure with spectroscopy, thermal analysis, and positron annihilation lifetime spectrum (PALS) techniques. The results show that the competition of polarity, crosslink density, free volume, and free TAIC are the key factors determining the dielectric properties of the composites.https://www.mdpi.com/2073-4360/14/9/1752copper cladthermosetting PPOdielectric propertiesperoxide initiator |
| spellingShingle | Xueyi Yu Zeming Fang Qianfa Liu Dan Li Yundong Meng Cheng Luo Ke Wang Zhiyong Lin Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite Polymers copper clad thermosetting PPO dielectric properties peroxide initiator |
| title | Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite |
| title_full | Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite |
| title_fullStr | Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite |
| title_full_unstemmed | Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite |
| title_short | Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite |
| title_sort | effects of peroxide initiator on the structure and properties of ultralow loss thermosetting polyphenylene oxide based composite |
| topic | copper clad thermosetting PPO dielectric properties peroxide initiator |
| url | https://www.mdpi.com/2073-4360/14/9/1752 |
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