High voltage cable thermoplastic semiconducting shielding material and preparation method thereof

A technology for shielding materials and high-voltage cables, applied in the field of high-voltage cables, can solve problems such as low resistivity and low volume resistivity, and achieve the effects of improving stability, simple preparation process and reducing volume resistivity
CN110498964AActive Publication Date: 2019-11-26SHANGHAI JIAO TONG UNIV
8 Cites 21 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2019-11-26

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a high voltage cable thermoplastic semiconducting shielding material and a preparation method thereof. The material is composed of the following components by weight: 15-40 parts of polypropylene, 30-50 parts of a polyolefin elastomer, 15-40 parts of conductive carbon black, 0.1-5.0 parts of an MXene-graphene (MXene-GNS) or MXene-carbon nanotube (MXene-CNT) or graphene-carbon nanotube (GNS-CNT) composite conductive powder, 0.5-10 parts of a lubricating dispersant, and 0.5-5.0 parts of an antioxidant. According to the invention, by adding the composite conductive filler,the dosage of conductive carbon black is reduced, and the processability of the shielding material is improved; the obtained semiconducting shielding material has high electrical conductivity, good conductivity temperature stability, good heat resistance and mechanical performance, and at the same time is non-crosslinked, green and environment-friendly.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of high-voltage cables, and relates to a thermoplastic semi-conductive shielding material for high-voltage cables and a preparation method thereof. Background technique

[0002] Power cables are composed of metal conductors, conductor shields, insulation, insulation shields and protective materials. Among them, the semi-conductive shielding layer plays the role of uniform conductor surface electric field or grounding, and its performance greatly affects the performance of the cable. The shielding material of traditional XLPE insulated cables mainly uses ethylene polymers as the matrix, such as the copolymer of ethylene and ethyl acrylate (EEA) or the copolymer of ethylene and vinyl acetate (EVA), adding conductive Carbon black forms a conductive network. However, EVA and EEA are often used as shielding materials for medium and low voltage cables. Under high voltage, a small amount of acidic substances (suc...

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