A method for evaluating the self-healing performance of cable insulation materials

A technology of cable insulation and evaluation method, which is applied in the direction of analyzing materials, instruments, measuring devices, etc., can solve the problems of low accuracy of evaluation results, achieve the effects of enhancing self-healing performance, simple operation, and eliminating error effects

Active Publication Date: 2021-05-11
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a method for evaluating the self-healing performance of cable insulation materials, aiming to solve the problem of low accuracy of the evaluation results obtained by using the existing evaluation methods for the performance of healing materials

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 method for evaluating the self-healing performance of cable insulation materials
  • A method for evaluating the self-healing performance of cable insulation materials
  • A method for evaluating the self-healing performance of cable insulation materials

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] (1) Preparation of sample Take a section of cable insulation material, and make it into several sample-like samples with a certain shape; for example, the cable insulation material can be cut into strip-shaped multiple samples, preferably, can Cut into 33 samples of 30×5×1 mm long strip structure.

[0029] (2) Measurement of the cross-sectional area of ​​the sample wound before and after self-healing: each of the samples is destroyed, and the initial cross-sectional area S of each of the sample wounds is measured 0 , after each described sample self-healing, measure the cross-sectional area S of each described sample wound after healing 1 (3) Determination of self-healing efficiency: the self-healing efficiency η of each described sample is determined respectively as, wherein; S0-S1 is the change value of wound cross-sectional area before and after each described sample self-healing, And determine the self-healing efficiency of the cable insulation material according t...

Embodiment 1

[0045] After the sample was cut off, the two ends of the wound were brought into contact with each other, and the initial cross-sectional area of ​​the wound was determined to be 7282 μm by laser confocal microscope 2 After waiting 2 hours at room temperature, the initial cross-sectional area of ​​the wound after self-healing was measured by laser confocal microscope: 88 μm 2 , the self-healing efficiency η1 is 98.79%.

Embodiment 2

[0047] After the sample 2 was cut off, the two ends of the wound were brought into contact with each other, and the initial cross-sectional area of ​​the wound was determined to be 7489 μm by laser confocal microscope 2 , after waiting 2 hours at room temperature, the initial cross-sectional area of ​​the self-healing wound was determined to be 96 μm by laser confocal microscope 2 , the self-healing efficiency η2 is 98.72%

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

No PUM Login to view more

Abstract

The invention provides a method for evaluating the self-healing performance of cable insulation materials. The method for evaluating the self-healing performance of the cable insulation material provided by the present invention is to pre-treat the cable insulation material and measure the cross-sectional area of ​​the wound before and after the self-healing of the sample through a laser confocal microscope, and finally calculate the self-healing performance of the material. Healing efficiency, the evaluation method is simple to operate, low in cost, can directly reflect the self-healing performance of the material, improves the efficiency of self-healing evaluation work, and is conducive to the establishment of a test based on laser confocal microscopy to evaluate self-healing efficiency Therefore, the cable insulation material can be optimized and improved according to the self-healing cable evaluation results to enhance the self-healing performance of the insulation material.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a method for evaluating the self-healing performance of cable insulating materials. Background technique [0002] Self-healing is the ability of the material itself to judge, control and repair defects by itself without external force. Self-healing polymer materials have the following characteristics: 1) specific site, strong pertinence, and high efficiency; 2) automation. No need for human observation, saving monitoring costs; 3) Improve material life; 4) Eliminate material maintenance costs. [0003] The development of self-healing cable insulation materials is a major breakthrough in the existing fault repair methods, which is beneficial to prolong the life of materials and save the cost of power grid construction and operation and maintenance. The self-healing performance of cable insulation materials means that it does not rely on fault location technology, does...

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): G01N33/00G01B11/28
CPCG01B11/28G01N33/00
Inventor 林木松陈天生付强彭磊张晟郑重马晓茜潘君镇
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap