Continuous thermal-shrinkable stress control tube material and preparation method thereof

A stress control tube, continuous technology, applied in the field of heat shrinkable stress tube and its preparation, can solve the problems of large expansion force, unable to carry out continuous expansion, unstable product performance, complex production process, etc., and achieve stable and good product performance. The effect of mechanical properties and high production efficiency

Active Publication Date: 2014-04-23
江苏达胜热缩防护用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The entire production process is complicated, the production efficiency is very low, the performance of the product is not stable enough, and the pipe cannot be continuously expanded due to the large expansion force required by cross-linked chlorinated polyethylene after irradiation

Method used

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  • Continuous thermal-shrinkable stress control tube material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Chlorinated polyethylene: 20 kg, thermoplastic elastomer: 45 kg, carbon black: 10 kg, barium titanate: 30 kg, antioxidant: 0.5 kg, antioxidant: 0.8 kg, lubricant: 0.2 kg.

[0032] The mass percent content of chlorine in the chlorinated polyethylene is 30%. The thermoplastic elastomer is a polyolefin thermoplastic elastomer. The carbon black is thermal carbon black, the mass percentage of carbon of which is ≥99%. The dielectric constant of the barium titanate is 6000. The anti-aging agent is 2,2,4-trimethyl-1,2-dihydroquinoline polymer. The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester. Described lubricant is calcium stearate.

[0033] The preparation method of the continuous heat-shrinkable stress control pipe material comprises the steps of: first step, accurately weighing each component of the formula; second step, melting and blending the weighed raw materials through an internal mixer, and then extruding Extrusion...

Embodiment 2

[0036] Chlorinated polyethylene: 40 kg, thermoplastic elastomer: 25 kg, carbon black: 20 kg, barium titanate: 20 kg, antioxidant: 1.0 kg, antioxidant: 0.3 kg, lubricant: 0.8 kg.

[0037] The mass percentage of chlorine in the chlorinated polyethylene is 40%. The thermoplastic elastomer is a polyolefin thermoplastic elastomer. The carbon black is thermal carbon black, the mass percentage of carbon of which is ≥99%. The dielectric constant of the barium titanate is 5000. The anti-aging agent is 2,2,4-trimethyl-1,2-dihydroquinoline polymer. The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester. Described lubricant is zinc stearate.

[0038] The method of Example 1 was used to prepare the continuous heat-shrinkable stress control tube material of the present invention.

Embodiment 3

[0040] Chlorinated polyethylene: 25 kg, thermoplastic elastomer: 33 kg carbon black: 15 kg barium titanate: 25 kg anti-aging agent: 0.8 kg, antioxidant: 0.6 kg, lubricant: 0.6 kg.

[0041] The mass percentage of chlorine in the chlorinated polyethylene is 35%. The thermoplastic elastomer is a polyolefin thermoplastic elastomer. The carbon black is thermal carbon black, the mass percentage of carbon of which is ≥99%. The dielectric constant of the barium titanate is 6000. The anti-aging agent is 2,2,4-trimethyl-1,2-dihydroquinoline polymer. The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester. Described lubricant is calcium stearate.

[0042] The method of Example 1 was used to prepare the continuous heat-shrinkable stress control tube material of the present invention.

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Abstract

The invention discloses a continuous thermal-shrinkable stress control tube material and a preparation method thereof. The continuous thermal-shrinkable stress control tube material comprises the following components, by weight, 20-40 parts of chlorinated polyethylene, 25-45 parts of a thermoplastic elastomer, 10-20 parts of carbon black, 20-30 parts of barium titanate, 0.5-1.0 part of an antiager, 0.3-0.8 parts of an antioxidant and 0.2-0.8 parts of a lubricant. The continuous thermal-shrinkable stress control tube material of the invention has excellent and stable performances, a key electrical performance index dielectric constant of greater than 15, and a volume resistivity of greater than 10<10>omega.cm; and the preparation method allows the continuous expansion of products to be realized.

Description

technical field [0001] The invention relates to a heat-shrinkable stress tube and a preparation method thereof, in particular to a continuous heat-shrinkable stress control tube material and a preparation method thereof. Background technique [0002] As an extremely important part of the design of medium and high voltage cable accessories, the function of the heat shrinkable stress tube is to evacuate the electrical stress of the high voltage cable. By controlling the electric field distribution and electric field intensity inside the cable accessories, appropriate measures are taken to make the electric field distribution And the electric field strength is in the best state, thereby improving the reliability and service life of the cable accessories. The material composition of the heat-shrinkable stress tube is a blend of various polar polymer materials and high dielectric constant fillers. At present, many manufacturers at home and abroad have produced discontinuous heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L23/00C08K13/02C08K3/04C08K3/24B29B7/28B29C47/92B29C48/92
CPCB29C48/397
Inventor 邹存洋王明志
Owner 江苏达胜热缩防护用品有限公司
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