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

Preparation method of self-repairing composite insulator

A composite insulator, self-healing technology, used in household components, applications, coatings, etc., can solve problems such as residual internal stress, decline in mechanical and insulating properties of insulators, and composite material damage

Inactive Publication Date: 2021-05-07
刘凤
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insulator materials are generally composed of reinforcing fibers and thermosetting resins. During the curing process of thermosetting resins, a large amount of internal stress will remain due to factors such as concentrated heat release and shrinkage. When damaged by external forces, crack initiation will preferentially verify the stress concentration area and the resin-fiber interface area. Expansion spread, which leads to the destruction of the composite material, which reduces the mechanical and insulating properties of the insulator

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
  • Preparation method of self-repairing composite insulator
  • Preparation method of self-repairing composite insulator
  • Preparation method of self-repairing composite insulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 , a method for preparing a self-repairing composite insulator, comprising the following steps:

[0049] S1. Take insulating fiber bundles to make a three-dimensional skeleton that matches the shape of the insulator, and then prepare resin glue and self-repairing microspheres;

[0050] S2. The self-healing microspheres should be no less than 4 pieces / 10cm 2 The density is dispersed and wound on the surface of the three-dimensional skeleton, and the resin glue is placed in a vacuumized container, and the mixture is obtained by degassing at a vacuum degree of 0-0.5MPa for 20 minutes;

[0051] S3. Preheat the pouring mold to 60°C, heat the mixture to 40°C and store it at a constant temperature for later use, and place the three-dimensional skeleton at the center of the mold;

[0052] S4. Slowly inject the mixture into the casting mold. After completion, apply a magnetic field of appropriate strength to the three-dimensional skeleton outside the mold to guide ...

Embodiment 2

[0068] A method for preparing a self-repairing composite insulator, comprising the following steps:

[0069] S1. Take insulating fiber bundles to make a three-dimensional skeleton that matches the shape of the insulator, and then prepare resin glue and self-repairing microspheres;

[0070] S2. The self-healing microspheres should be no less than 4 pieces / 10cm 2 The density is dispersed and wound on the surface of the three-dimensional skeleton, and the resin glue is placed in a vacuumized container, and the mixture is obtained by degassing at a vacuum degree of 0-0.5MPa for 25 minutes;

[0071] S3. Preheat the pouring mold to 60°C, heat the mixture to 50°C and store it at a constant temperature for later use, and place the three-dimensional skeleton at the center of the mold;

[0072] S4. Slowly inject the mixture into the casting mold. After completion, apply a magnetic field of appropriate strength to the three-dimensional skeleton outside the mold to guide and extend the s...

Embodiment 3

[0078] A method for preparing a self-repairing composite insulator, comprising the following steps:

[0079] S1. Take insulating fiber bundles to make a three-dimensional skeleton that matches the shape of the insulator, and then prepare resin glue and self-repairing microspheres;

[0080] S2. The self-healing microspheres should be no less than 4 pieces / 10cm 2 The density is dispersed and wound on the surface of the three-dimensional skeleton, and the resin glue is placed in a vacuumized container, and the mixture is obtained by degassing at a vacuum degree of 0-0.5MPa for 30 minutes;

[0081] S3. Preheat the pouring mold to 60°C, heat the mixture to 60°C and store it at a constant temperature for later use, and place the three-dimensional skeleton at the center of the mold;

[0082] S4. Slowly pour the mixture into the casting mold. After completion, apply a magnetic field of appropriate strength to the three-dimensional skeleton outside the mold to guide and extend the sel...

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 discloses a preparation method of a self-repairing composite insulator, and belongs to the technical field of insulators. Self-repairing microspheres are innovatively introduced in the preparation process of the insulator, a crack of a resin layer can be sensed in time through the extension sensing capability of a sensing tube, the brittle fracture action is triggered, repairing resin stored in an interface repairing core is released, repairing assisting microspheres reserved in the sensing tube are extruded out of a crack to make contact with outside air, and therefore oxidation reaction is carried out to generate heat, on one hand, the heat is used for catalyzing the repairing assisting microspheres to generate a large amount of oxygen for disintegration, on the other hand, the heat is used for heating the repairing resin to force the repairing resin to be rapidly cured, after the repairing resin completes filling repair forming along the crack, the disintegrated repairing assisting microspheres cover the surface of the repairing resin, seepage prevention is conducted through the hydrophobic characteristic of the repairing assisting microspheres, then the repair effect is improved, insulation and mechanical protection are provided within a certain period of time, and time is gained for regular maintenance by technicians.

Description

technical field [0001] The invention relates to the technical field of insulators, in particular to a method for preparing a self-repairing composite insulator. Background technique [0002] An insulator is a device installed between conductors at different potentials or between a conductor and a grounding member that can withstand voltage and mechanical stress. There are many types of insulators in different shapes. Although the structure and shape of different types of insulators are quite different, they are all composed of two parts: insulating parts and connecting fittings. [0003] Insulators are special insulation controls that can play an important role in overhead transmission lines. In the early years, insulators were mostly used on utility poles, and gradually developed into a high-voltage wire connection tower with many disc-shaped insulators hanging on one end. It is used to increase the creepage distance, usually made of glass or ceramics, and is called an in...

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
IPC IPC(8): B29C39/10B29C39/42B29C71/00C08L63/00C08L61/34C08L85/02C08K7/14C08K3/22C08K3/04C08K3/36C08K3/24C08K13/04C08J7/06B29L31/34
CPCB29C39/10B29C39/42B29C71/00C08L63/00C08J7/06C08J2363/00C08K2003/2241B29C2791/006B29C2791/004B29L2031/3412C08L61/34C08L85/02C08K7/14C08K3/22C08K3/042C08K3/36C08K3/24C08K13/04
Inventor 刘凤
Owner 刘凤
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