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Li J, Jian X, Wang Y, Zhong Z, Fu X, Deng G, Li Z. Fabrication of poly methylacrylate acid hybrid silica core‐shell microspheres with redox responsive biodegradability for drug delivery. J Appl Polym Sci 2023. [DOI: 10.1002/app.53630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jiagen Li
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules Chengdu Normal University Chengdu China
| | - Xiaoyi Jian
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules Chengdu Normal University Chengdu China
| | - Yuqing Wang
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules Chengdu Normal University Chengdu China
| | - Zhanqiong Zhong
- Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Xiaohong Fu
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules Chengdu Normal University Chengdu China
| | - Guowei Deng
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules Chengdu Normal University Chengdu China
| | - Zhonghui Li
- College of Chemistry and Life Science, Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules Chengdu Normal University Chengdu China
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Song X, Yang W, Huo S, Wang K, Wu Y, Chen Y, Qiao J, Shen B, Bian X. Research on Improving the Partial Discharge Initial Voltage of SiC/EP Composites by Utilizing Filler Surface Modification and Nanointerface Interaction. Polymers (Basel) 2022; 14:polym14112297. [PMID: 35683969 PMCID: PMC9183071 DOI: 10.3390/polym14112297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 01/27/2023] Open
Abstract
SiC/EP composites are promising insulating materials due to their high thermal conductivity, stable chemical properties, and nonlinear electrical conductivity. However, the compatibility of micron-sized SiC particles with the organic polymer matrix is poor, and defects such as air gaps may be introduced at the interface, which reduces the partial discharge resistance of the composite materials. In order to improve the partial discharge initial voltage (PDIV) of SiC/EP composites, in this paper, SiC/EP composites with different proportions were prepared by surface modification of filler and compound of micro/nano particles. Firstly, a method of secondary modification of SiC particles was proposed, which was first modified by alkali washing and then silane coupling agent KH560, and the effectiveness of the modification was verified. Therefore, the interface bonding ability between the filler and the matrix was improved, the air gap defects at the interface were reduced, and the PDIV of the composite material was improved. When the filling ratio is 10 wt%, the PDIV was enhanced by 13.75%, and when the filling ratio was further increased, the improvement was reduced. In contrast, the introduction of nanoparticles into the composites can effectively improve the PDIV of composite materials. In this study, nanoparticles were used to form a shell-core structure in epoxy resins to exert their huge specific surface area and active surface properties, thereby changing the overall crosslinking properties of the composites. Through experimental research, the optimal micro-nano particle compounding ratio was explored. Under the optimal mixing ratio, the PDIV of the composite material can be increased by more than 90%.
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Affiliation(s)
- Xupeng Song
- State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co. Ltd., Beijing 102211, China; (X.S.); (W.Y.); (K.W.); (Y.C.); (J.Q.)
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China; (S.H.); (Y.W.)
| | - Wei Yang
- State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co. Ltd., Beijing 102211, China; (X.S.); (W.Y.); (K.W.); (Y.C.); (J.Q.)
| | - Shouchao Huo
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China; (S.H.); (Y.W.)
| | - Kun Wang
- State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co. Ltd., Beijing 102211, China; (X.S.); (W.Y.); (K.W.); (Y.C.); (J.Q.)
| | - Yuanyuan Wu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China; (S.H.); (Y.W.)
| | - Yun Chen
- State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co. Ltd., Beijing 102211, China; (X.S.); (W.Y.); (K.W.); (Y.C.); (J.Q.)
| | - Jian Qiao
- State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co. Ltd., Beijing 102211, China; (X.S.); (W.Y.); (K.W.); (Y.C.); (J.Q.)
| | - Boyang Shen
- Electrical Engineering Division, University of Cambridge, Cambridge CB3 0FA, UK;
| | - Xingming Bian
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China; (S.H.); (Y.W.)
- Correspondence:
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Li S, Wang J, Qu W, Cheng J, Lei Y, Wang D, Zhang F. Green synthesis and properties of an epoxy-modified oxidized starch-grafted styrene-acrylate emulsion. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109412] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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