南方科技大学知识苑(SUSTech KC): 一种介电复合薄膜及其制备方法和应用

Title	一种介电复合薄膜及其制备方法和应用
Alternative Title	Dielectric composite film as well as preparation method and application thereof
Author	汪宏; 董久锋; 牛玉娟
First Inventor	汪宏
Original applicant	南方科技大学
First applicant	南方科技大学
Address of First applicant	518055 广东省深圳市南山区西丽学苑大道1088号
Current applicant	南方科技大学
Address of Current applicant	518055 广东省深圳市南山区西丽学苑大道1088号 (广东,深圳,南山区)
First Current Applicant	南方科技大学
Address of First Current Applicant	518055 广东省深圳市南山区西丽学苑大道1088号 (广东,深圳,南山区)
Application Number	CN201910948687.4
Application Date	2019-10-08
Open (Notice) Number	CN110818940A
Date Available	2020-02-21
Status of Patent	实质审查
Legal Date	2020-03-17
Subtype	发明申请
SUSTech Authorship	First
Abstract	本发明公开了一种介电复合薄膜及其制备方法和应用，该制备方法包括对聚合物介电薄膜进行水解处理，使聚合物介电薄膜上表层的高分子链打开；再将其浸泡于金属盐溶液中，取出后水洗并去除表面水分；而后进行热处理，在聚合物介电薄膜的表面形成绝缘金属氧化物层。由上，在聚合物介电薄膜表面利用化学法形成致密均匀的绝缘金属氧化物层，绝缘金属氧化层可实现从纳米至微米级别的有效调控，其与聚合物介电薄膜结合紧密，可有效抑制高温高电场下聚合物介电薄膜表面电荷注入以及内部电荷的转移和扩散，降低聚合物介电薄膜的电导损耗；绝缘金属氧化物层可实现优良的隔离自愈功能，可提高薄膜的储能特性及保证其在高温高电场下的持续稳定工作。
Other Abstract	The invention discloses a dielectric composite film as well as a preparation method and application thereof. The preparation method includes the following steps: performing hydrolysis treatment on a polymer dielectric film to open a polymer chain of the upper surface layer of the polymer dielectric film; immersing the treated film into a metal salt solution, taking out the immersed film, performing washing by using water, and removing moisture of the surface; and performing heat treatment to form an insulating metal oxide layer on the surface of the polymer dielectric film. According to the above technical solution, the dense and uniform insulating metal oxide layer is formed at the surface of the polymer dielectric film by using the chemical method, the insulating metal oxide layer can realize effective regulation and control from a nanometer level to a micron level, and the insulating metal oxide layer is tightly combined with the polymer dielectric film, and can effectively inhibitthe surface charge injection and internal charge transfer and diffusion of the polymer dielectric film under the high-temperature high-electric-field condition, and reduce the conductivity loss of thepolymer dielectric film; and the insulating metal oxide layer can realize the excellent isolation self-healing function, improve the energy storage characteristic of the film and guarantee the continuous and stable operation under the high-temperature high-electric-field condition.
CPC Classification Number	C08J5/18 ; C08J7/06 ; C08J2367/02 ; C08J2371/00 ; C08J2379/08 ; H01G4/18 ; H01G4/33
IPC Classification Number	C08J7/06 ; C08L79/08 ; C08L67/02 ; C08L71/00 ; C08J5/18 ; H01G4/33 ; H01G4/18
INPADOC Legal Status	（ENTRY INTO FORCE OF REQUEST FOR SUBSTANTIVE EXAMINATION）[2020-03-17][CN]
INPADOC Patent Family Count	1
Extended Patent Family Count	1
Priority date	2019-10-08
Patent Agent	张建珍
Agency	广州嘉权专利商标事务所有限公司
URL	[Source Record]
Data Source	PatSnap
Document Type	Patent
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/532410
Department	Graduate school 理学院_化学系工学院_材料科学与工程系
Recommended Citation GB/T 7714	汪宏,董久锋,牛玉娟. 一种介电复合薄膜及其制备方法和应用.

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