Upcycling of Polyethylene Terephthalate to Continuously Reprocessable Vitrimers through Reactive Extrusion
文献类型：期刊论文
| 作者 | Qiu, Jianfan; Ma, Songqi; Wang, Sheng; Tang, Zhaobin; Li, Qiong; Tian, Anping; Xu, Xiwei; Wang, Binbo; Lu, Na; Zhu, Jin |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2021 |
| 卷号 | 54期号:2页码:703-712 |
| 英文摘要 | Vitrimers are expected to combine features of thermosets and thermoplastics but their continuous reprocessing is still a challenge; poly(ethylene terephthalate) (PET) has been widely used in our daily life, while its cross-linking upcycle contradicts with processability. Herein, we combined polyol with a tertiary amine structure and diepoxy to transform PET to continuously reprocessable vitrimers through an industrial twin-screw extruder. The cross-linking of PET was determined by swelling and rheology experiments, and the vitrimer feature was characterized by stress relaxation and oscillatory frequency sweep experiments. Creep resistance and mechanical properties of PET vitrimers were improved greatly relative to neat PET. Meanwhile, PET vitrimers exhibited excellent reprocessability via compression, extrusion, and injection molding suitable for industrial production. According to this work, any thermoplastics containing ester bonds should be able to be upgraded to vitrimers for additional advantages such as creep resistance, dimensional stability, insolubility, etc., without sacrificing the original processability. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22260]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | Ma, SQ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Biobased Polymer Mat Technol & Applicat Z, Lab Polymers & Composites, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Qiu, Jianfan,Ma, Songqi,Wang, Sheng,et al. Upcycling of Polyethylene Terephthalate to Continuously Reprocessable Vitrimers through Reactive Extrusion[J]. MACROMOLECULES,2021,54(2):703-712. |
| APA | Qiu, Jianfan.,Ma, Songqi.,Wang, Sheng.,Tang, Zhaobin.,Li, Qiong.,...&Zhu, Jin.(2021).Upcycling of Polyethylene Terephthalate to Continuously Reprocessable Vitrimers through Reactive Extrusion.MACROMOLECULES,54(2),703-712. |
| MLA | Qiu, Jianfan,et al."Upcycling of Polyethylene Terephthalate to Continuously Reprocessable Vitrimers through Reactive Extrusion".MACROMOLECULES 54.2(2021):703-712. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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