Compound cable material with PTC characteristic and preparation method thereof

A technology of composite cable and manufacturing method, which is applied in the field of cable materials, to achieve the effect of no casting at the die head, stable wire diameter, and increased conductive current

Inactive Publication Date: 2014-10-15
SUZHOU HENGLI COMM MATERIAL
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Existing PTC materials cannot directly add carbon nanotubes. In order to apply carbon nanotubes to PTC materials and cr

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

Example Embodiment

[0038] (3) Preparation of composite materials:

[0039] The rheological agent, anti-aging agent and polyolefin base material are mixed to form a polymer, and then a high-torque twin screw extruder is used to uniformly disperse the carbon nanotube master batch obtained in step (2) in the polymer. Granulated to make composite cable material with PTC characteristics. The mass percentage of each component of the polymer is as follows: rheological agent 0.5%-2%, anti-aging agent 0.2%-0.8%, the rest is polyolefin base material; wherein the rheological agent is specifically high molecular weight siloxane, and the anti-aging agent is specifically It is antioxidant 1010; the mass percentage of each component of the composite cable material is as follows: polymer 75%-95%, the rest is carbon nanotube masterbatch, the sum of the two substances is 100%.

[0040] A composite cable material with PTC characteristics, which contains polymer and carbon nanotube masterbatch, wherein the polymer mass...

Example Embodiment

[0042] Specific embodiment 1: A composite cable material with PTC characteristics, which contains polymer and carbon nanotube masterbatch, wherein the polymer mass percentage is 75%, the carbon nanotube masterbatch mass percentage is 25%, and each component mass percentage of the polymer Rheological agent 0.5%, anti-aging agent 0.2%, the rest is polyolefin base material; the mass percentage of each component of carbon nanotube masterbatch is surface modified carbon nanotubes 5%, coupling agent 0.5%, antioxidant 0.1%, polyethylene 30%, the rest is maleic anhydride grafted polyethylene, the five substances are added to make 100% carbon nanotube masterbatch uniformly dispersed in the polymer; the rheology agent in the polymer is specifically high molecular weight silicon Oxyane, the anti-aging agent is specifically antioxidant 1010; the coupling agent in the carbon nanotube master batch is specifically silane coupling agent a-172, and the antioxidant is specifically antioxidant 101...

Example Embodiment

[0051] Specific embodiment 2: A composite cable material with PTC characteristics, which contains polymer and carbon nanotube master batch, wherein the polymer mass percentage is 85%, the carbon nanotube master batch mass percentage is 15%, and the polymer component mass percentages Rheological agent 1.5%, anti-aging agent 0.5%, the rest is polyolefin base material; the mass percentage of each component of the carbon nanotube masterbatch is 15% surface-modified carbon nanotubes, coupling agent 1.5%, antioxidant 0.5%, polyethylene 40%, the rest is maleic anhydride grafted polyethylene, the addition of five substances is 100% carbon nanotube masterbatch uniformly dispersed in the polymer; the rheology agent in the polymer is specifically high molecular weight silicon Oxyane, the anti-aging agent is specifically antioxidant 1010; the coupling agent in the carbon nanotube master batch is specifically silane coupling agent a-172, and the antioxidant is specifically antioxidant 1010. ...

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 compound cable material with a PTC characteristic and a preparation method thereof, which enables that a carbon nanotube can be uniformly mixed with a base material, and provides the compound cable material with the PTC characteristic. The compound cable material with the PTC characteristic can be used as a sheath material of heating cables in oil fields and chemical works; the appearance of the compound cable material with the PTC characteristic is smooth, the compound cable material is wear-resistant, good in bending and rolling resistance, high temperature and pressure resistance and compressive property, good in processability, and convenient to squeeze out; the cable products made of the compound cable material with the PTC characteristic have light and soft structures. The preparation method includes the following steps: mixing the surface modified carbon nanotube with a base resin through fusion and mixing to prepare master batch of the carbon nanotube; mixing a rheological agent, an inhibitor and a polyolefine base material to form a polymer; then, fully mixing the master batch of the carbon nanotube with the polymer through a twin-screw extruding machine, extruding the mixture and granulating, so as to form the compound cable material with the PTC characteristic.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a manufacturing method of a composite cable material with PTC characteristics, and the invention also provides a composite cable material with PTC characteristics. Background technique [0002] Composite conductive polymer materials have been widely concerned by researchers because of their wide application in electronic appliances, national defense, aviation, military and other fields, and have had a profound impact on the development of the national economy. An important feature of the composite conductive polymer material is that its resistivity decreases nonlinearly with the increase of the volume fraction of the conductive filler. When the volume fraction of the conductive filler increases to a certain critical value, the resistivity of the composite material suddenly decreases. , the variation range can reach more than 10 orders of magnitude. At this time, the criti...

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): C08L23/06C08L23/12C08L23/08C08L25/06C08K9/00C08K9/02C08K9/06C08K7/24C08J3/22
CPCC08L23/06C08J3/226C08J2323/06C08J2323/08C08J2323/12C08J2325/06C08J2423/06C08J2451/06C08L23/0815C08L23/0853C08L23/12C08L25/06C08L2203/202C08L2205/025C08L2205/035
Inventor 程晓松孙玉萍于德宝
Owner SUZHOU HENGLI COMM MATERIAL
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