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Modified bus bar heat-shrinkable tube and preparation method thereof

A heat-shrinkable tube and busbar technology, applied in the field of modified busbar heat-shrinkable tube and its preparation, can solve the problems of poor insulation performance, difficult construction, short service life, etc., and achieve the effect of harmless to human body

Inactive Publication Date: 2017-01-04
苏州泰斯拓伟机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Busbar heat-shrinkable tubes are widely used in various substations, transformers, and switchgears for busbar insulation protection. However, for a long time, most of the busbar heat-shrinkable tubes produced in my country are products that can only withstand low voltage, and can withstand 10~36 kV There is still a certain gap between the overall performance of the voltage-level busbar heat-shrinkable tube and similar foreign products
In addition, the existing busbar heat-shrinkable tubes still have problems such as poor insulation performance, short service life, and difficult construction.

Method used

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  • Modified bus bar heat-shrinkable tube and preparation method thereof
  • Modified bus bar heat-shrinkable tube and preparation method thereof
  • Modified bus bar heat-shrinkable tube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Production of heat-shrinkable tubes for modified busbars.

[0024] (1) Weigh 10 kg of low-density polyethylene, 50 kg of olefin-methyl acrylate copolymer, methyl vinyl phenyl silicone rubber (the mole fraction of vinyl is 5%, and the mole fraction of phenyl is 10% ) 5 kg, 3 kg of melamine, 0.5 kg of nano-active calcium carbonate (with a particle size of 25 nm), 0.5 kg of nano-silicon dioxide (with a particle size of 10 nm) and 0.5 kg of dibutyl hydroxytoluene, and mix them uniformly to obtain a premix ;

[0025] (2) Mix and granulate the premix obtained in step (1) on a twin-screw extruder equipped with an internal mixer, and extrude it into a pipe on a single-screw extruder;

[0026] (3) The tube obtained in step (2) was radiated and cross-linked under the condition of 120 kGy, then heated at 150°C to expand twice, and quenched and formed to obtain a modified busbar heat-shrinkable tube.

Embodiment 2

[0027] Example 2: Production of heat-shrinkable tubes for modified busbars.

[0028] (1) Weigh 40 kg of low-density polyethylene, 80 kg of olefin-methyl acrylate copolymer, methyl vinyl phenyl silicone rubber (the mole fraction of vinyl is 15%, and the mole fraction of phenyl is 30% ) 10 kg, 8 kg of melamine, 5 kg of nano-active calcium carbonate (with a particle size of 100 nm), 5 kg of nano-silica (with a particle size of 50 nm) and 5 kg of dibutyl hydroxytoluene, and mix them uniformly to obtain a premix ;

[0029] (2) Mix and granulate the premix obtained in step (1) on a twin-screw extruder equipped with an internal mixer, and extrude it into a pipe on a single-screw extruder;

[0030] (3) The tube obtained in step (2) was radiated and cross-linked under the condition of 150 kGy, then heated at 150°C to expand twice, and quenched and formed to obtain a modified busbar heat-shrinkable tube.

Embodiment 3

[0031] Example 3: Production of heat-shrinkable tubes for modified busbars.

[0032] (1) Weigh 15 kg of low-density polyethylene, 55 kg of olefin-methyl acrylate copolymer, methyl vinyl phenyl silicone rubber (the mole fraction of vinyl is 5%, and the mole fraction of phenyl is 10% ) 6 kg, 4 kg of melamine, 1 kg of nano-active calcium carbonate (with a particle size of 30 nm), 1 kg of nano-silica (with a particle size of 20 nm) and 1 kg of dibutyl hydroxytoluene, and mix them uniformly to obtain a premix ;

[0033] (2) Mix and granulate the premix obtained in step (1) on a twin-screw extruder equipped with an internal mixer, and extrude it into a pipe on a single-screw extruder;

[0034] (3) The tube obtained in step (2) was radiated and cross-linked under the condition of 120 kGy, then heated at 150°C to expand twice, and quenched and formed to obtain a modified busbar heat-shrinkable tube.

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Abstract

The invention discloses a modified bus bar heat-shrinkable tube and a preparation method thereof. Specifically, the modified fluoroelastomer heat-shrinkable tube disclosed by the invention comprises the following components in parts by weight: 10-40 parts of polyolefin, 50-80 parts of olefin-acrylate copolymer, 5-10 parts of silicon rubber, 3-8 parts of melamine flame retardant, 0.5-5 parts of nano activated calcium carbonate, 0.5-5 parts of nano silicon dioxide and 0.5-5 parts of antioxidant. The modified bus bar heat-shrinkable tube disclosed by the invention can be used for industries having high requirements for high temperature resistance, low temperature resistance and solvent resistance, causes no pollution to environment and no harm to a human body in the production, storage, transportation and use processes, and does not produce harmful gas during combustion, thus meeting the requirements of the RoHS (Restriction of Hazardous Substances) command of the European Union.

Description

technical field [0001] The invention belongs to the technical field of busbar heat-shrinkable tubes, and relates to a modified busbar heat-shrinkable tube and a preparation method thereof. Background technique [0002] Busbar heat-shrinkable tubes are widely used in various substations, transformers, and switchgears for busbar insulation protection. However, for a long time, most of the busbar heat-shrinkable tubes produced in my country are products that can only withstand low voltage, and can withstand 10~36 kV There is still a certain gap between the overall performance of the voltage-level busbar heat-shrinkable tubes and similar foreign products. In addition, the existing busbar heat-shrinkable tubes still have problems that need to be solved urgently, such as poor insulation performance, short service life, and difficult construction. Contents of the invention [0003] In view of the above situation, the object of the present invention is to provide a modified busb...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L83/07C08K13/02C08K5/3492C08K3/26C08K3/36C08K5/13
CPCC08L23/0869C08K2201/003C08K2201/011C08L2201/02C08L2201/08C08L2203/18C08L2205/03C08L2207/066C08L2312/06C08L23/06C08L83/04C08K13/02C08K5/34922C08K2003/265C08K3/36C08K5/13
Inventor 周宏敏
Owner 苏州泰斯拓伟机电设备有限公司
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