Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of modified nanometer zinc oxide/EPDM rubber-based cable accessory material and preparation method thereof

A technology of EPDM rubber and nano-zinc oxide, which is applied in the direction of electrical components, circuits, plastic/resin/wax insulators, etc., can solve problems such as the decrease of breakdown field strength, and achieve the improvement of nonlinear coefficient and high nonlinear coefficient , the effect of effectively evacuating space charge

Active Publication Date: 2022-07-05
HARBIN UNIV OF SCI & TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the breakdown field strength of the existing EPDM rubber-based cable accessory material drops seriously when the nonlinear coefficient is increased, the present invention provides a modified nano-zinc oxide / EPDM rubber-based cable accessory material and its Preparation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of modified nanometer zinc oxide/EPDM rubber-based cable accessory material and preparation method thereof
  • A kind of modified nanometer zinc oxide/EPDM rubber-based cable accessory material and preparation method thereof
  • A kind of modified nanometer zinc oxide/EPDM rubber-based cable accessory material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A modified nano-zinc oxide / EPDM rubber-based cable accessory material is doped with 5-20 wt% of modified nano-zinc oxide particles, and the modified nano-zinc oxide particles are modified by 1-3 mol% of ferric nitrate be made of.

Embodiment 2

[0039] A modified nano-zinc oxide / EPDM rubber-based cable accessory material is doped with 5wt% of modified nano-zinc oxide particles, the modified nano-zinc oxide particles are prepared by modifying 1mol% of ferric nitrate, and the present invention is In the examples, the particle size of the modified nano-zinc oxide particles is 20-50 nm.

Embodiment 3

[0041]A modified nano-zinc oxide / EPDM rubber-based cable accessory material is doped with 5wt% of modified nano-zinc oxide particles, the modified nano-zinc oxide particles are prepared by modifying 2mol% of ferric nitrate. In the examples, the particle size of the modified nano-zinc oxide particles is 20-50 nm.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
breakdown field strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a modified nano-zinc oxide / EPDM rubber-based cable accessory material and a preparation method thereof, and belongs to the field of DC cable accessory materials. In order to solve the problem of serious deterioration of the breakdown field strength of the existing EPDM rubber-based cable accessory material when the nonlinear coefficient is increased, the present invention provides a modified nano-zinc oxide / EPDM-based cable accessory material, which The material is doped with 5-20 wt% of modified nano-zinc oxide particles, and the modified nano-zinc oxide particles are prepared by modifying 1-3 mol% of ferric nitrate. The nonlinear coefficient of the EPDM rubber-based cable accessory material doped with modified nano-zinc oxide particles provided by the invention is improved, while the breakdown field strength remains unchanged, and has both a higher nonlinear coefficient and The breakdown field strength, which can be applied to DC cables can increase the service life of cable accessory materials. The preparation method of the invention is simple, the required materials are cheap and easy to obtain, and the invention is environmentally friendly and pollution-free.

Description

technical field [0001] The invention belongs to the field of DC cable accessory materials, in particular to a modified nano-zinc oxide / EPDM rubber-based cable accessory material and a preparation method thereof. Background technique [0002] HVDC transmission has significant advantages such as strong line transmission capacity, low loss, no need for synchronous operation of AC systems on both sides, and small damage to the power grid during faults. It is especially suitable for long-distance point-to-point high-power transmission, and its application scale will be greatly increased increase. However, the insulation interface between the cable and the accessory, that is, the terminal or joint, is the weak link of the insulation, because the DC voltage combined with the temperature gradient effect will lead to an increase in the space charge between the interfaces, resulting in the distortion of the electric field around the accessory material, resulting in a flashover phenome...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K9/02C08K3/22H01B3/44
CPCC08K9/02C08K3/22H01B3/441C08L2203/202C08K2201/011C08K2003/2296C08L23/16
Inventor 迟庆国姜龙坤张天栋张昌海张月张永泉
Owner HARBIN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com