Jacket with high wear resistance and for underground-rail cable and preparation method of jacket

A low-orbit, high-wear-resistant technology, applied in the field of cable production, can solve the problems of sheath heat dissipation performance, mechanical properties and corrosion resistance, poor dispersion of heat-conducting fillers, and inability to meet the technical requirements of the sheath.

Inactive Publication Date: 2017-11-07
WUHU HANGTIAN SPECIAL CABLE FACTORY
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sheath for low-orbit cables with high wear resistance and its preparation method, which solves the problem that thermally conductive fillers are easy to agglomerate and deposit in the polymer matrix and have poor dispersion, which eventually leads to the heat dissipation performance and mechanical properties of the sheath. Decreased performance and corrosion resistance, unable to meet the use process requirements of the sheath

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] The present invention provides a method for preparing a sheath for low-track cables with high wear resistance. The preparation method includes:

[0015] (1) Preparation of nano-filler: mix nano-silica and emulsifier, heat in water bath at 50-60℃, add dispersant after heating in water bath for 1-1.5h, and continue heating in water bath at 70-80℃ for 30- Centrifugal treatment is performed after 40 min, and the filter residue is washed and dried after filtration to obtain nano-filler M;

[0016] (2) Modification of nano-filler: mix the nano-filler M, silane coupling agent KH560, ethanol and water, and then perform the first heat treatment and the second heat treatment respectively to obtain the modified nano-filler N; wherein The temperature of the first heat treatment is 120-140℃, the time of the first heat treatment is 1-2h, the temperature of the second heat treatment is 70-80℃, and the time of the second heat treatment is 30-40min;

[0017] (3) Preparation of the sheath: the...

Embodiment 1

[0030] Mix 100g of nano-silica and 300g of alkylphenol polyoxyethylene ether, heat in a water bath at 50°C, add 50g of magnesium stearate after heating in the water bath for 1 hour, continue heating in the water bath at 70°C for 30 minutes, and perform centrifugal treatment (centrifugation) The speed is 200r / s, the time of centrifugation is 5min), the filter residue is washed and dried after filtration (the drying temperature is 40℃, and the drying time is 40min) to obtain the nanofiller M; 100g of the nanofiller M, 30g of silane coupling agent KH560, 300g of ethanol and 200g of water were mixed, and then the first heat treatment and the second heat treatment were performed respectively to obtain the modified nanofiller N; the temperature of the first heat treatment was 50℃, and the temperature of the first heat treatment was 50℃. The heat treatment time is 0.5h, the second heat treatment temperature is 110°C, and the second heat treatment time is 240min; 100g of the nanofiller ...

Embodiment 2

[0032] Mix 100g of nano silica and 500g of octylphenol polyoxyethylene ether, heat in a water bath at 60°C, add 80g of cadmium stearate after heating in the water bath for 1.5h, continue to heat it in a water bath at 80°C for 40min, and perform centrifugal treatment ( The centrifugation speed is 300r / s, the centrifugation time is 10min), the filter residue is washed and dried after filtration (the drying temperature is 60°C, and the drying time is 50min) to obtain nanofiller M; 100g of the nanofiller M , 50g of silane coupling agent KH560, 500g of ethanol and 300g of water were mixed, and then the first heat treatment and the second heat treatment were performed respectively to obtain the modified nanofiller N; the temperature of the first heat treatment was 80℃, The time of the second heat treatment was 0.8h, the temperature of the second heat treatment was 130°C, and the time of the second heat treatment was 240min; 100g of the nanofiller N, 900g polyethylene, 500g epoxy resin...

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
Login to view more

Abstract

The invention discloses a jacket with high wear resistance and for an underground-rail cable and a preparation method of the jacket. The preparation method comprises the following steps: nano-silica and an emulsifier are mixed, the mixture is heated in a water bath at 50-60 DEG C, a dispersing agent is added after the water bath heating is performed for 1-1.5 h, centrifugal treatment is performed after the water bath heating is performed continuously at 70-80 DEG C for 30-40 min, filter residues obtained after filtering are washed and dried, and nano-filler M is obtained; the nano-filler M, a silane coupling agent KH560, ethyl alcohol and water are mixed, then first heat treatment and second heat treatment are performed respectively, and modified nano-filler N is obtained; the nano-filler N, polyethylene, epoxy resin, cellulose nitrate, p-tert-butylphenol formaldehyde resin, acrylic resin and ethyl acetate are mixed, and the jacket is obtained after extrusion molding. The problems of poorer wear resistance and the like of a common jacket are solved.

Description

Technical field [0001] The invention relates to the field of cable production, in particular to a sheath for low-track cables with high wear resistance and a preparation method thereof. Background technique [0002] The sheath of the cable is mostly insulated, and its thermal conductivity is generally about 0.2W / (m·K). This makes the sheath provide insulation performance while blocking the internal heat loss of the cable to a certain extent. The accumulation of heat will Speed ​​up the aging rate of the sheath, so that its surface wear resistance is reduced, thereby shortening the life of the cable. Adding thermally conductive fillers to the sheath material can solve the above problems. However, the thermally conductive fillers are easy to agglomerate and deposit in the polymer matrix and have poor dispersion, which ultimately leads to a decrease in the mechanical properties of the sheath and cannot meet the requirements of the use process of the sheath. [0003] Therefore, it is ...

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 Applications(China)
IPC IPC(8): C08L23/06C08L63/00C08L1/18C08L61/06C08L33/00C08K9/04C08K9/06C08K3/36
CPCC08L23/06C08K2201/011C08L2203/202C08L2205/035C08L63/00C08L1/18C08L61/06C08L33/00C08K9/04C08K9/06C08K3/36
Inventor 姜国庆潘小青龚世余骆丹
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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