Cable-sheath material with self-repair function, preparation method and cable sheath

A cable sheath and self-repair technology, which is applied to circuits, electrical components, organic insulators, etc., can solve the problems of complex repair process and poor repair performance of repair materials, and achieve the effect of guaranteed mechanical properties, easy operation and simple steps

Active Publication Date: 2018-07-31
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention proposes a cable sheath material with self-repair function, a preparation method and a cable sheath, aiming at solving the problem of poor repair performance and complex repair process of the repair materials for repairing cable insulation materials in the prior art The problem

Method used

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  • Cable-sheath material with self-repair function, preparation method and cable sheath
  • Cable-sheath material with self-repair function, preparation method and cable sheath
  • Cable-sheath material with self-repair function, preparation method and cable sheath

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The ratio of raw materials used is as follows:

[0043]

[0044]

[0045] Add thermoplastic elastomer and self-healing polymer to the mixer and mix for a period of time, spray dioctyl phthalate into the mixer with a spray device, and stir thoroughly for 10 minutes; add antioxidant 1010 and white carbon black to the mixer Stir in the middle, fully mix evenly; put the mixed raw material into the twin-screw extruder, extrude, melt and granulate within the range of 80°C to obtain a cable sheath material with self-repairing function.

[0046] The performance test standards and results of the self-repairing cable sheath material prepared in this example are shown in Table 1.

Embodiment 2

[0048] The ratio of raw materials used is as follows:

[0049]

[0050] Add thermoplastic elastomer and self-healing polymer and mix in mixer for a period of time, spray bis(2-ethylhexyl) phthalate in mixer with spray device, fully stir for 20 minutes; light stabilizer and The white carbon black is added to the mixer and stirred, fully mixed evenly; the mixed raw materials are added to the twin-screw extruder, extruded, melted and granulated within the range of 100°C to obtain a cable sheath material with self-repairing function.

[0051] The performance test standards and results of the self-repairing cable sheath material prepared in this example are shown in Table 1.

Embodiment 3

[0053] The ratio of raw materials used is as follows:

[0054]

[0055]

[0056] Add thermoplastic elastomer and self-healing polymer to the mixer and mix for a period of time, spray diethyl phthalate into the mixer with a spray device, and stir thoroughly for 30 minutes; add ultraviolet absorber and white carbon black to the mixer Stir and fully mix evenly; put the mixed raw materials into a twin-screw extruder, extrude, melt, and granulate within the range of 120°C to obtain a cable sheath material with self-repairing function.

[0057] The performance test standards and results of the self-repairing cable sheath material prepared in this example are shown in Table 1.

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Abstract

The invention provides a cable-sheath material with a self-repair function. The cable-sheath material is prepared from the following raw materials in parts by weight: 30 to 100 parts of thermoplasticelastomer, 30 to 70 parts of self-repair polymer, 15 to 35 parts of plasticizer, 1 to 8 parts of stabilizer and 2 to 4 parts of reinforcing agent. The self-repair polymer forms a structure similar toa cross-linking point through adopting a polyacrylate copolymer elastomer as a base material and introducing a host group cyclodextrin and a guest group adamantane into a copolymer system, wherein thecyclodextrin group and the adamantane group can be bound together through such supramolecular acting force of host-guest recognition; such a physical cross-linking point can tend to recombination ina normal-temperature environment; the cross-linking point is regenerated; the damaged position of the material is self-repaired by the regeneration of the cross-linking point, and then, through addingadditives of the plasticizer, the reinforcing agent, the stabilizer, and the like, the mechanical performance and electrical performance of the material are ensured.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a cable sheath material with self-repairing function, a preparation method and the cable sheath. Background technique [0002] During the operation of the cable, the aging of the insulation layer often leads to leakage or even a power failure, resulting in huge economic losses and potential safety hazards. Among the cable accidents, the cable faults caused by the aging and damage of the insulation layer account for the largest proportion. Insulation materials for wire and cable in my country mainly include polyvinyl chloride (PVC), polyethylene (PP), polypropylene (PP) and cross-linked polyethylene (XLPE). The common advantages of these materials are excellent electrical properties and good insulation properties; but the common disadvantage is that, as traditional polymer materials, these materials are not intelligent. Even slight aging damage can cause degradation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/00C08L39/06C08L33/08C08L5/16C08K13/02C08K5/12C08K3/36H01B3/44C08B37/16
CPCC08B37/0012C08L53/00C08L2203/202C08L2205/035C08L2205/04C08L2207/04H01B3/442C08L39/06C08L33/066C08L5/16C08K13/02C08K5/12C08K3/36
Inventor 林木松陈天生付强彭磊张晟郑重潘君镇
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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