A kind of cable insulating material and preparation method thereof

A cable insulation and compound technology, applied in the field of materials, can solve the problems of cumbersome and complicated cable preparation, and achieve the effects of good cross-linking environment, strong controllability, and improved self-healing ability.

Active Publication Date: 2021-01-05
广州市新兴电缆实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multi-layer material makes the preparation of the cable more complicated and cumbersome.

Method used

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  • A kind of cable insulating material and preparation method thereof
  • A kind of cable insulating material and preparation method thereof
  • A kind of cable insulating material and preparation method thereof

Examples

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Effect test

preparation example Construction

[0021] The preparation method of the ethanol-modified bone glue adhesive in the present invention comprises: mixing bone glue particles with water, raising the temperature to 60-65° C., adding sodium hydroxide, and lowering the temperature to 40° C. after stirring. Adjust the pH value to 6-7, add epichlorohydrin dropwise while stirring, and continue to react for 2 hours to obtain a liquid. Add ethanol to the above liquid at 30-40°C, and stir for 1 h.

[0022] The transition metal compound includes any one or at least two of oxides, hydroxides and salts of transition metals; preferably, the transition metals include at least one of Mn, Fe, Co, Ni, Cu, Sn and Ti. More preferably, the transition metal compounds are oxides, hydroxides and salts of Ni and Sn. Still more preferably, the transition metal compounds are nickel oxide and tin oxide.

[0023] The rare earth metal compound includes any one or at least two of oxides, hydroxides, and salts of rare earth metals; preferably,...

Embodiment 1

[0035] This embodiment provides a cable insulating material, which is prepared by the following preparation method:

[0036] Raw materials were weighed in proportion, 60 parts of butadiene-vinylpyridine rubber, 1 part of epichlorohydrin modified bone glue adhesive, 1 part of a mixture of copper sulfate and iron oxide, 0.5 parts of praseodymium oxide, and antioxidant BHT0.5 1 part, zinc oxide whisker 1 part. The transition metal compound and the rare earth metal compound have a particle size of 50 microns and a purity of 99%.

[0037] Mix and melt butadiene-vinylpyridine rubber and epichlorohydrin modified bone glue adhesive at 80°C for 2 minutes, add zinc oxide whiskers, mix and melt for 3 minutes, add antioxidant BHT, mix and melt for 5 minutes, and heat up to At 150°C, add a mixture of copper sulfate and iron oxide and praseodymium oxide to melt for 20 minutes. The mixed and molten mixture was stirred at a speed of 300 r / min for 0.5 h, and the viscosity was 60 Pa·s.

Embodiment 2

[0039] This embodiment provides a cable insulating material, which is prepared by the following preparation method:

[0040]Weigh raw materials in proportion, 100 parts of butadiene-vinylpyridine rubber, 15 parts of ethanol modified bone glue adhesive, 3 parts of a mixture of nickel oxide and tin oxide, 1.5 parts of a mixture of praseodymium oxide and praseodymium chloride, antioxidant 1.5 parts of BHT and dihydroquinoline, 5 parts of zinc oxide whiskers, and 1 part of flaky lignin fiber. The transition metal compound and the rare earth metal compound have a particle size of 0.1 micron and a purity of 99.999%.

[0041] Mix and melt butadiene-vinylpyridine rubber and ethanol-modified bone glue adhesive at 100°C for 8 minutes, add zinc oxide whiskers, mix and melt for 6 minutes, then add antioxidant BHT and dihydroquinoline, mix and melt for 10 minutes, Raise the temperature to 180°C, add nickel oxide, tin oxide, praseodymium oxide and praseodymium chloride to melt for 40 minut...

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Abstract

The invention provides a cable insulating material and a preparation method thereof and relates to the technical field of materials. The preparation method of the cable insulating material comprises 60-100 parts of butadiene-vinyl pyridine rubber, 1-15 parts of a modified bone glue adhesive, 1-3 parts of a transition metal compound, 0.5-1.5 parts of a rare-earth metal compound, 0.5-1.5 parts of anantioxidant and 1-5 parts of a zinc oxide crystal whisker. The cable insulating material has the characteristics of being good in self healing capability, good in toughness and good in insulating property. The preparation method of the cable insulating material comprises the following steps: mixing and fusing the butadiene-vinyl pyridine rubber, the modified bone glue adhesive, the transition metal compound, the rare-earth metal compound, the antioxidant and the zinc oxide crystal whisker, and carrying out extrusion molding. The method is simple to operate, good in controllability and feasible in large-scale production.

Description

technical field [0001] The invention relates to the technical field of materials, and in particular to a cable insulating material and a preparation method thereof. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires. Each group of wires is insulated from each other, and is often twisted around a center, and the entire outside is covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. [0003] Cable insulation material is an important part of the cable, which not only plays the role of insulation, but also plays the role of heat insulation and anti-corrosion. Currently, the outside of the cable is covered with multiple layers of material to increase the protection of the cable. However, the multi-layer material makes the preparation of the cable more complicated and cumbersome. Contents of the invention [0004] The object of the prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08L89/00C08K13/04C08K7/08C08K3/22C08K3/16C08K3/30H01B3/28
CPCC08K2003/2231C08K2003/2272C08K2003/2293C08K2003/3045C08K2201/014C08L9/00C08L2205/03C08L2205/16H01B3/28C08L89/00C08K13/04C08K7/08C08K3/30C08K3/22C08K3/16
Inventor 杨晓东
Owner 广州市新兴电缆实业有限公司
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