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Cold-resistant auxiliary agent for cable insulation layer and preparation method thereof

A technology of cable insulation and additives, which is applied in the field of cables, and can solve problems such as threats to the service life of cables and brittle cracks in the insulation layer

Inactive Publication Date: 2018-12-18
WUHU HANGTIAN SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing insulation layer can meet the existing needs, the existing insulation layer is often prone to brittle cracks in cold seasons, which poses a threat to the service life of the cable

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0012] The invention provides a preparation method of an anti-cold additive for cable insulation layers, comprising:

[0013] 1) ultrasonically vibrate molecular sieves, potassium titanate whiskers, porous starch and water, and then dry to prepare a mixture;

[0014] 2) Soak the mixture, bis[2-(2-butoxyethoxy)ethyl adipate] and dibutyl adipate, and then filter to prepare the anti-cold additive for cable insulation layer.

[0015] In step 1) of the present invention, the consumption of each material can be selected in a wide range, but in order to further improve the cold resistance of the auxiliary agent to the cable insulation layer, preferably, in step 1), molecular sieve, titanic acid The weight ratio of potassium whiskers, porous starch and water is 50:4-8:10-16:100-200.

[0016] In step 1) of the present invention, the condition of ultrasonic vibration can be selected in a wide range, but in order to further improve the anti-cold performance of the auxiliary agent to the...

Embodiment 1

[0023] 1) Molecular sieves, potassium titanate whiskers, porous starch and water were subjected to ultrasonic vibration according to the weight ratio of 50:6:13:150 (ultrasonic frequency is 28KHz, oscillation time is 50min), and then dried (drying temperature was 110°C, The drying time is 3h) to make the mixture;

[0024] 2) Soak the mixture, bis[2-(2-butoxyethoxy)ethyl adipate] and dibutyl adipate in a weight ratio of 100:15:24 (soaking temperature is 40°C, The soaking time is 13h), and then filtered to obtain the anti-cold auxiliary agent A1.

Embodiment 2

[0026] 1) Molecular sieves, potassium titanate whiskers, porous starch and water were ultrasonically oscillated in a weight ratio of 50:4:10:100 (ultrasonic frequency 25KHz, oscillating time 40min), and then dried (drying temperature 100°C, The drying time is 4h) to make the mixture;

[0027] 2) Soak the mixture, bis[2-(2-butoxyethoxy)ethyl adipate] and dibutyl adipate in a weight ratio of 100:15:24 (soaking temperature is 35°C, The soaking time is 16h), and then filtered to obtain the anti-cold auxiliary agent A2.

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PUM

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Abstract

The invention discloses a cold-resistant auxiliary agent for a cable insulation layer and a preparation method thereof. The preparation method includes the steps: 1) carrying out ultrasonic vibrationof molecular sieve, potassium titanate whiskers, porous starch and water, and then drying to produce a mixture; and 2) immersing the mixture, hexanedioic acid 1,6-bis[2-(2-butoxyethoxy)ethyl]ester anddibutyl adipate, and then filtering to produce the cold-resistant auxiliary agent for the cable insulation layer. The cold-resistant auxiliary agent can make the cable insulation layer have excellentcold-resistant performance; and meanwhile, the preparation method has the advantages of simple process and easy availability of raw materials.

Description

technical field [0001] The invention relates to cables, in particular to a cold-resistant auxiliary agent for cable insulation layers and a preparation method thereof. Background technique [0002] The cable is mainly composed of the following four parts. Conductive wire core: made of high conductivity material (copper or aluminum). According to the requirements of cable softness under laying conditions, each wire core may be twisted by a single wire or multiple wires; insulation layer: the insulation material used for cables should have high insulation resistance and high breakdown electric field strength, low dielectric loss and low dielectric constant. Sealing sheath: protect the insulated wire core from mechanical damage, moisture, moisture, chemicals, light, etc. For moisture-prone insulation, lead or aluminum extruded sealing sheaths are generally used; protective covering: used to protect the sealing sheath from mechanical damage. [0003] Although the existing in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L27/06C08L7/00C08K7/26C08K7/08C08K5/101C08K13/04
CPCC08K5/101C08K7/08C08K7/26C08L7/00C08L3/02C08L27/06C08K13/04
Inventor 佘晨何源徐秋芳李善才
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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