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Polyvinyl chloride cable material and preparation method thereof

A polyvinyl chloride cable, polyvinyl chloride technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problem that the working temperature range cannot fully meet the requirements, and achieve excellent electrical insulation performance, good cold resistance, and improved The effect of corrosion resistance

Inactive Publication Date: 2013-05-08
ANHUI XINKE CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, with the improvement of production technology, people put forward higher requirements for the working temperature of cables in production and life, and the existing PVC cable material working temperature range can not fully meet the requirements, so it is necessary to The existing PVC cable material is improved to further improve its cold and heat resistance

Method used

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  • Polyvinyl chloride cable material and preparation method thereof
  • Polyvinyl chloride cable material and preparation method thereof

Examples

Experimental program
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Effect test

specific Embodiment 1

[0023] The polyvinyl chloride cable material provided by this embodiment is composed of 100 parts of polyvinyl chloride, 15 parts of dioctyl sebacate, 20 parts of ethylene-ethyl acrylate copolymer, 4 parts of polyethylene wax, peroxide It consists of 0.2 parts of dihexadecyl dicarbonate, 2 parts of vinyltrimethoxysilane, and 3 parts of dibutyltin dilaurate. Its preparation method is carried out according to the following steps:

[0024] 1. 100 parts of polyvinyl chloride, 15 parts of dioctyl sebacate, 20 parts of ethylene-ethyl acrylate copolymer, 4 parts of polyethylene wax, 3 parts of dibutyltin dilaurate, the components that will contain the above mass parts The mixture is mixed in a high mixer at 120°C for 10 minutes, and the temperature of the kneaded powder is 110-130°C;

[0025] 2. Then make materials in the co-rotating twin-screw with a double length-to-diameter ratio of 48:1, and the temperature of the twin-screw is 140-160°C;

[0026] 3. Deep dehydration and drying...

specific Embodiment 2～18

[0030] The polyvinyl chloride cable material provided in this embodiment consists of 100 parts of polyvinyl chloride and the components listed in Table 1 in terms of parts by mass. Calcium-zinc composite heat stabilizer and antioxidant 1010 are added to the mixture in step (a), and the preparation method is the same as that of specific example 1. Among them, component A is dioctyl sebacate, component B is ethylene-ethyl acrylate copolymer, component C is polyethylene wax, component D is dihexadecyl peroxydicarbonate, component E It is vinyltrimethoxysilane, component F is dibutyltin dilaurate, component G is calcium-zinc composite heat stabilizer, and component H is antioxidant 1010.

[0031] Table 1

[0032]

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Abstract

The invention discloses a polyvinyl chloride cable material which comprises the following components in part by mass: 100 parts of polyvinyl chloride, 5-25 parts of dioctylsebacate, 10-30 parts of ethylene-ethyl acrylate copolymer, 1-10 parts of polyethylene wax, 0.05-0.5 part of dicetyl peroxydicarbonate, 0.5-5 parts of vinyltrimethoxy silane and 0.5-5 parts of dibutyltin dilaurate. The invention also discloses a preparation method of the material. The material does not turn hard and brittle, crack or swell in the corrosion condition of salt solution and chemical solvent, has low water permeability and can ensure the use safety of a cable in a saline and alkaline area, an oil refinery, a petrochemical plant and a chemical solution corrosion region so as to prolong the service life of the cable in severe environment.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a polyvinyl chloride cable material and a preparation method thereof. technical background [0002] Polyvinyl chloride cable material is the most widely used material in the cable industry. This type of plastic is composed of polyvinyl chloride with plasticizers, fillers, and thermal stability additives. In the prior art, polyvinyl chloride cable materials use a large amount of plasticizer, and if the resin is 100 parts by mass, the added mass of plasticizer is usually 30-100 parts. Under the corrosion of chemicals and oil, the plasticizer in the PVC cable material will undergo reactions such as swelling and hydrolysis, so that the insulating plasticizer can be converted into a conductive solution. Due to the occurrence of the above reactions and changes in properties, the PVC cable material will gradually lose its electrical insulation, and the PVC cable material will h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/08C08K5/11C08K5/14C08K5/5425C08J3/24H01B3/44
Inventor 巫志邵文贞谢太阶
Owner ANHUI XINKE CABLE GROUP
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