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| Effect of Surface Modification of Polyethylene Glycol on the Properties of Nanocomposite Insulating Paper |
| Received:August 25, 2021 |
| DOI：10.11981/j.issn.1000-6842.2022.02.49 |
| Key Words:nanocomposite insulating paper;hydroxyapatite nanowire;composite material;breakdown strength |
| Fund Project:国家重点研发计划（2017YFB0304300）；国家级大学生创新创业训练计划项目（202111488041）。 |
| Author Name | Affiliation | Postcode | | ZHAO Junhua* | Quzhou University， Quzhou， Zhejiang Province， 324000 | 324000 | | LEI Yinlin | Quzhou University， Quzhou， Zhejiang Province， 324000 | 324000 | | CHU Tao | Quzhou University， Quzhou， Zhejiang Province， 324000 | 324000 | | HU Qin | Institute of Zhejiang University-Quzhou， Quzhou， Zhejiang Province， 324000 | 324000 | | LI Hongkai | Quzhou Branch of China National Pulp and Paper Research Institute， Quzhou， Zhejiang Province， 324000 | 324000 | | XU Hao | Zhejiang Lilac Paper Industry Co.， Ltd.， Quzhou， Zhejiang Province， 324000 | 324000 |
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| Abstract: |
| The hydroxyapatite nanowires surface-modified by polyethylene glycol （PEG@HAPNW） was synthesized via hydrothermal method using oleic acid/ethanol/water mixture as reaction system and PEG@HAPNW insulating paper samples were subsequently prepared. The microstructure， mechanical and electrical properties of the nanocomposite insulating paper were characterized by scanning electron microscope （SEM）， laser particle size analyzer， mercury porosimetry， and tensile tester. The results showed that the PEG@HAPNW synthesized with different PEG adding amounts embodied different whisker morphologies and sizes. The mechanical and electrical properties of nanocomposite insulating paper were significantly improved compared with those of the control. When the solid content of PEG@HAPNW was 15%（PEG adding amount of 5 at%）， the breakdown strength of the corresponding nanocomposite insulating paper was 11.73 MV/m and the breakdown voltage 715 V. |
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