Polyurethane cable insulating material and preparation method thereof

A cable insulation, polyurethane technology, applied in insulators, organic insulators, plastic/resin/wax insulators, etc., can solve the problems of acid and alkali resistance, poor oil resistance, difficult production process, poor tear resistance, etc., to achieve tear strength. High, simple processing technology, high production efficiency

Inactive Publication Date: 2020-11-06
荆晓东
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technical effect includes that it offers various benefits such as ease-of-processing techniques for producing materials with improved properties at lower cost compared to existing methods or processes used previously. Additionally, this new process allows for better heat transfer during manufacturing without compromising on their overall performance over time due to reduced exposure to harsh environments like water vapor.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the properties of existing cables made from these types of material for better performance at extreme temperatures or harsh environments such as those associated with military operations where they may be used during warranty periods due to their ability to resist damage caused by various factors including chemical agents that can attack them over time without losing effectiveness.

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
  • Polyurethane cable insulating material and preparation method thereof
  • Polyurethane cable insulating material and preparation method thereof
  • Polyurethane cable insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A polyurethane cable insulation material, which is made of component A and component B according to the following parts by weight:

[0023] A component:

[0024]

[0025] B component:

[0026] The mixture of PM200, MDI50 and TDI with a mass ratio of 2:7:3 and the polyether polyol with a functionality of 2 and a molecular weight of 700 were reacted at 80±5°C for 3 hours according to a mass ratio of 3.5:1 to obtain an NCO% of 150 parts of 26% modified black material.

[0027] When preparing, add the raw materials of component A into the mixer and mix evenly, adjust the constant temperature of the material to 25±2°C, adjust the speed of the mixer to 4000r / min (using this range of speed can more fully mix the materials of each component), Pour component B preheated to 25±2°C into component A and stir for 5 seconds, pour the mixture into the mold, and mature for 24 hours to obtain the product.

Embodiment 2

[0029] A polyurethane cable insulation material, which is made of component A and component B according to the following parts by weight:

[0030] A component:

[0031]

[0032] B component:

[0033] The mixture of PM200, MDI50 and TDI with a mass ratio of 2:7:3 and the polyether polyol with a functionality of 2 and a molecular weight of 700 were reacted at 80±5°C for 2 hours according to a mass ratio of 3.5:1 to obtain NCO% of 65 parts of 26% modified black material.

[0034] When preparing, add the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 25±2°C, and adjust the speed of the agitator to 4000r / min (using this range of speed can more fully mix the materials of each component), Pour component B preheated to 25±2°C into component A and stir for 5 seconds, pour the mixture into the mold, and mature for 24 hours to obtain the product.

Embodiment 3

[0036] A polyurethane cable insulation material, which is made of component A and component B according to the following parts by weight:

[0037] A component:

[0038]

[0039]

[0040] B component:

[0041] The mixture of PM200, MDI50, and TDI with a mass ratio of 2:7:3 and the polyether polyol with a functionality of 2 and a molecular weight of 700 were reacted at 80±5°C for 2.5 hours at a mass ratio of 3.5:1 to obtain an NCO% of 110 parts of 26% modified black material.

[0042] When preparing, add the raw materials of component A into the mixer and mix evenly, adjust the constant material temperature to 25±2°C, and adjust the speed of the agitator to 4000r / min (using this range of speed can more fully mix the materials of each component), Pour component B preheated to 25±2°C into component A and stir for 5 seconds, pour the mixture into the mold, and mature for 24 hours to obtain the product.

[0043] The performance test is as follows:

[0044] Tensil

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 belongs to the field of chemical engineering, and particularly relates to a polyurethane cable insulating material and a preparation method thereof. The polyurethane cable insulating material comprises a component A and a component B, wherein the component A is prepared from the following components by weight: polyether polyol DMN-500, polymer polyol POP-200, polyether polyol DDL-1000, water, a foam stabilizer, a tin catalyst, an amine catalyst, filler and a physical foaming agent, and the component B is a modified black material. The preparation method comprises the following steps of: adding the raw materials of the component A into a stirrer, uniformly mixing the raw materials, adjusting the constant material temperature to 25+/-2DEG C, adjusting the rotating speed of thestirrer to 4000r/min, pouring the component B preheated to 25+/-2DEG C into the component A, performing stirring for 4-5s, pouring the mixed material into a mold, and conducting curing for 24h to obtain the product. The polyurethane cable insulating material provided by the invention has the advantages of simple processing technique, high production efficiency, oil resistance, corrosion resistance, low temperature resistance, favorable flexibility, high tensile strength, high tear strength and the like.

Description

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

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
Owner 荆晓东
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