Semi-horniness flame-proof PVC sheath material for high-voltage cable

A high-voltage cable, semi-rigid technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of outer sheath damage, breakage, large difference, etc., to improve the situation of easy cracking, improve the shear deformation ability, The effect of improved scratch resistance

Inactive Publication Date: 2007-03-14
SHANGHAI ELECTRIC CABLE RES INST +1
View PDF0 Cites 79 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The test performance of the PVC cable sheath material produced by this formula fully meets the requirements for the sheath layer material in the high-voltage cable standard, but the hardness of the material is only about Shore 45D, and the hardness of ordinary MDPE materials is about Shore 60D From the numerical point of view, there is a big difference. The actual hand feeling is also that the PVC sheath material is relatively soft, while the MDPE sheath material is relatively stiff, so the ordinary PVC sheath material has poor resistance to external scratches. For high-voltage cables The protective

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
  • Semi-horniness flame-proof PVC sheath material for high-voltage cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described below in conjunction with embodiment:

[0032] Composition of each component

Dosage (parts by weight)

Example 1

Example 2

Example 3

Example 4

PVC resin

100

100

100

100

plasticizer

35.0

36.0

37.0

39.0

Low temperature impact modifier

5.0

5.5

6.5

7.0

stabilizer

5.0

5.5

6.5

7.0

flame retardant

6.0

7.0

8.0

9.0

filler

20.0

22.0

23.5

25.0

Lubricant

0.5

0.65

0.85

1.0

[0033] The following table is the specific name of each component used in each embodiment.

[0034]

[0035] The production process is carried out in sequence according to the following steps: preparation of raw and auxiliary materials → weighing according to the corresponding proportion → high-speed kneading → ...

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 present invention discloses one kind of semi-hard flame retarding PVC material for sheath of high voltage cable. The semi-hard flame retarding PVC material consists of PVC resin 100 weight portions, plasticizer 35-39 weight portions, low temperature shock impact modifier 5-7 weight portions, stabilizer 5-7 weight portions, flame retardant 6-9 weight portions, filler 20-25 weight portions, and lubricating assistant 0.5-1 weight portion. The semi-hard flame retarding PVC material is used in making sheath of high voltage cable and is superior to common PVC sheath material.

Description

technical field [0001] The invention relates to a semi-rigid flame-retardant PVC sheath material for high-voltage cables. Background technique [0002] The outer sheath material of 110KV and above high-voltage cables can choose PVC material or PE material, because the conductor withstands ultra-high voltage, from many perspectives such as safety, the high-voltage cable standard puts forward higher requirements for the outer sheath material of the cable. Some special requirements such as insulation resistance. [0003] At present, most of the outer sheath materials of 110KV and above high-voltage cables are selected from plastics with stable performance and excellent extrusion processing performance. Considering possible scratches during construction, it is possible to choose PE materials with higher hardness. Ensure that the outer sheath of the cable is intact; considering the flame retardant performance required by the cable, choosing PVC materials with excellent flame ret...

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): C08L27/06C08K5/09H01B7/17C08K3/32C08K3/34C08K3/26
Inventor 沈宇汪晓明项健
Owner SHANGHAI ELECTRIC CABLE RES INST
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