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A kind of composite electric tube and preparation method thereof

A power tube and inner layer technology, applied in the field of power tubes, can solve problems such as stuck cables and achieve the effect of small damage

Active Publication Date: 2021-06-08
杭州联通管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the construction process, when the cable is threaded, the traction steel cable or the outer sheath layer of the cable will rub against the inner wall of the power tube, and the inner surface of the power tube will be worn, and the glass fiber in the inner wall of the power tube will be hung out, forming a continuous winding on the cable. Fibrous filaments will eventually cause the cable to be stuck, making it impossible to carry out cable construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of Filling Modifiers

[0038] Preparation of modified nano-cubic boron nitride / wollastonite: Weigh cubic boron nitride and wollastonite respectively according to the mass ratio of 1:2, put them in a ball mill, ball mill at 800r / min for 2h, and add 0.1 times cubic Cetyltrimethylammonium bromide with the total mass of boron nitride and wollastonite was ball-milled at 500r / min for 1h, and then ball-milled at 50r / min for 3h, discharged and dried at 120°C dry to obtain modified nano-cubic boron nitride / wollastonite particles.

[0039] Configuration of PVC spinning solution: according to the volume ratio of 3:2, take N,N-dimethylformamide and tetrahydrofuran, stir and mix evenly to obtain mixed solution 1, weigh PVC powder and add it to mixed solution 1, at a temperature of 53 ℃ , and stirring at a stirring speed of 1050 r / min until the PVC is completely dissolved to obtain a PVC spinning solution with a PVC mass fraction of 13%.

[0040] The configuration of PA...

Embodiment 2

[0052] Preparation of Filling Modifiers

[0053] Preparation of modified nano-cubic boron nitride / wollastonite: Weigh cubic boron nitride and wollastonite respectively according to the mass ratio of 1:3, put them in a ball mill, ball mill at 500r / min for 4h, and add 0.1 times cubic Cetyltrimethylammonium bromide with the total mass of boron nitride and wollastonite was ball-milled at 400r / min for 2h, and then ball-milled at 40r / min for 3h, discharged and dried at 120°C dry to obtain modified nano-cubic boron nitride / wollastonite particles.

[0054] Configuration of PVC spinning solution: according to the volume ratio of 3:2, take N,N-dimethylformamide and tetrahydrofuran and mix them uniformly to obtain mixed solution 1. Weigh PVC powder and add it to mixed solution 1. The temperature is 60 ° C. , and stirring at a stirring speed of 1000 r / min until the PVC is completely dissolved to obtain a PVC spinning solution with a PVC mass fraction of 13%.

[0055] The configuration o...

Embodiment 3

[0063] Preparation of Filling Modifiers

[0064] Preparation of modified nano-cubic boron nitride / wollastonite: Weigh cubic boron nitride and wollastonite respectively according to the mass ratio of 3:2, put them in a ball mill, ball mill at 600r / min for 3h, and add 0.1 times cubic Cetyltrimethylammonium bromide with the total mass of boron nitride and wollastonite was ball-milled at 300r / min for 2h, then ball-milled at 45r / min for 2h, discharged and dried at 120°C dry to obtain modified nano-cubic boron nitride / wollastonite particles.

[0065] Configuration of PVC spinning solution: According to the volume ratio of 3:2, take N,N-dimethylformamide and tetrahydrofuran and mix them uniformly to obtain mixed solution 1. Weigh PVC powder and add it to mixed solution 1. The temperature is 50 ° C. , and stirring at a stirring speed of 1200 r / min until the PVC is completely dissolved to obtain a PVC spinning solution with a PVC mass fraction of 13%.

[0066] The configuration of PA...

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Abstract

The invention relates to the technical field of power tubes, in particular to a composite power tube and a preparation method thereof. In the composite power tube of the present invention, the power tube includes a lubricating inner layer and a protective outer layer, and the lubricating inner layer and the protective outer layer are There is also a glass fiber reinforced layer between the layers, and the lubricating inner layer includes the following raw materials in parts by weight: 100 parts of PVC, 10-15 parts of filling modifier, 4-5 parts of stabilizer II, and 0.5-1 part of external lubricant , 0.5-1 part of internal lubricant, 0.5-1 part of compatibilizer two, the filling modifier is made of PVC / PA66 composite fiber as a carrier, and the carrier is loaded with modified nano-cubic boron nitride / wollastonite Granules are made. The composite power tube prepared by the invention has good wear resistance and a relatively smaller friction coefficient, saves more labor during use, and has less damage to the power tube and cables.

Description

technical field [0001] The invention relates to the technical field of power tubes, in particular to a composite power tube and a preparation method thereof. Background technique [0002] The development of electric energy is related to the national economy and people's livelihood and national security. With the continuous and rapid development of my country's economy and society, the demand for electricity has also entered a period of rapid growth. Recently, with the development of urban planning and construction and the cleanliness and beauty of the city, all high-voltage wires are required to be buried underground. Due to the high voltage of the high-voltage cable, it is easy to generate high temperature due to heat or sudden accidental short-circuit to generate high temperature. People usually use plastic pipes, metal pipes or glass steel pipes as the sheathing materials for high-voltage cables. [0003] Metal pipes have poor corrosion resistance, and their service life i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G9/06C08L27/24C08L27/06C08L23/28C08L51/06C08L23/06C08K13/06C08K9/12C08K9/04C08K3/38C08K3/34C08K5/09C08K5/134
CPCC08K2003/385C08K2201/011C08L27/06C08L27/24C08L2203/18C08L2203/20C08L2205/03C08L2205/035H02G9/06C08L23/286C08L51/06C08L23/06C08K5/1345C08K13/06C08K9/12C08K9/04C08K3/38C08K3/34C08K5/09
Inventor 孙东华陈毅明裘杨燕傅亚斌齐国良
Owner 杭州联通管业有限公司
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