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Radiation-crosslinked polyolefin heat shrink tube capable of changing color along with temperature for warning

A cross-linked polyolefin, temperature-dependent technology, applied in the field of heat-shrinkable sleeves, can solve the problem that cable accessories do not have discoloration with temperature changes, and achieve the effect of convenient inspection and avoidance of accidents.

Inactive Publication Date: 2016-05-11
CHANGYUAN ELECTRONICS DONGGUAN +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the fact that the existing cable accessories do not have the ability to change color with temperature, and provide a radiation cross-linked polyolefin heat-shrinkable tube that gives the cable accessories a corresponding change in color as the environment or use temperature changes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] The above-mentioned preparation method of the radiation cross-linked polyolefin heat-shrinkable tube that changes color with temperature and warns, comprises the following steps:

[0055] Step 1: Take the following components in parts by weight, 100 parts of polyolefin resin; 5 parts of grafting agent; 30-50 parts of filling flame retardant; 2-5 parts of antioxidant; 2-5 parts of light stabilizer parts; lubricant 2-5 parts; organic fluorine masterbatch 2-5 parts; silicone oil 1-5 parts; crosslinking agent 3-5 parts;

[0056] Step 2: Stir the components in step 1 with a high-speed mixer, and produce a masterbatch at 100-160°C through an internal mixer or twin-screw.

[0057] Step 3: Add 1-5 parts of thermochromic pigments to the masterbatch in step 2 according to the total ratio, use a color mixer to mix and stir for 5 minutes, and then pass through a single-screw extruder for molding and extrusion at 90-140°C tubing.

[0058] Step 4: The tube extruded in step 3 is irr...

preparation Embodiment 1

[0062] Take the following components:

[0063] 100 parts of polyolefin resin (specifically take ethylene methyl acrylate (EMA Akema 18MA03) 30Kg, ethylene vinyl acetate (EVA) 70Kg);

[0064] 5 parts of grafting agent (specifically take 5Kg of maleic anhydride modified terpolymer);

[0065] Fill with 50 parts of flame retardant (specifically take 20Kg of magnesium hydroxide and 30Kg of aluminum hydroxide);

[0066] Antioxidant 5 parts (specifically take antioxidant 10763Kg, antioxidant DNP 2Kg);

[0067] 2 parts of light stabilizer (specifically take tris(1,2,2,6,6-pentamethylpiperidinyl) phosphite (brand: GW540) 2Kg)

[0068] 4 parts of lubricant (specifically take 2Kg of zinc stearate and 2Kg of silicone);

[0069] 2 parts of organic fluorine masterbatch (specifically take 2Kg of PPA masterbatch);

[0070] 3 parts of silicone oil (specifically take 3Kg of dimethyl silicone oil);

[0071] 3 parts of crosslinking agent (specifically take 4Kg of trimethylolpropane trimethac...

preparation Embodiment 2

[0079] Take the following components:

[0080] 100 parts of polyolefin resin (80Kg of ethylene methyl acrylate (EMA Akema 18MA03) and 20Kg of ethylene octene copolymer resin (POE));

[0081] 5 parts of grafting agent (specifically take 5Kg of maleic anhydride modified copolymer);

[0082] Filling with 30 parts of flame retardant (specifically take 30Kg of magnesium hydroxide);

[0083] 2 parts of antioxidant (specifically take antioxidant 10101.5Kg, antioxidant Ky4050.5Kg);

[0084] 3 parts of light stabilizer (specifically take tris(1,2,2,6,6-pentamethylpiperidinyl) phosphite (brand: GW540) 3Kg)

[0085] 2 parts of lubricant (specifically take 2Kg of lubricant zinc stearate);

[0086] 5 parts of organic fluorine masterbatch (specifically take 5Kg of PPA masterbatch);

[0087] 1 part of silicone oil (specifically take 1Kg of dimethyl silicone oil);

[0088] 1 part of crosslinking agent (specifically take 1Kg of trimethylolpropane trimethacrylate (TMPTMA));

[0089] 1 par...

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Abstract

A radiation-crosslinked polyolefin heat shrink tube capable of changing color along with temperature for warning is prepared from, by weight, 100 parts of polyolefin resin, 5 parts of a grafting agent, 30-50 parts of filling retardant, 2-5 parts of an antioxidant, 2-5 parts of a light stabilizer, 2-5 parts of a lubricant, 2-5 parts of organic fluorine master batch, 1-5 parts of silicone oil, 3-5 parts of a crosslinking agent and 1-5 parts of thermochromic pigment. By means of the heat shrink tube produced according to the proportion, temperature information can be easily, conveniently and visually converted into visual color information, and therefore a patroller or an inspector can conveniently, rapidly and accurately detect the actual operating temperature of a cable accessory and then take emergency measures in time to avoid accidents.

Description

technical field [0001] The invention relates to a heat-shrinkable sleeve that changes color and warns with temperature, and has the function of changing color and warning when the environment or use temperature reaches a certain range. Background technique [0002] As an important supporting material in the field of insulation protection of power transmission and transformation circuits in the electronics and power industries, heat shrinkable sleeves have been widely used at home and abroad. In the actual operation or use of heat shrinkable sleeves, circuit failure accidents often occur because the ambient or operating temperature reaches or exceeds the rated operating temperature. By endowing the heat-shrinkable sleeve with the function of changing color and warning with temperature, the temperature information can be easily and intuitively converted into visual color information, which is convenient for inspection and inspection personnel to quickly and accurately detect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/02C08K3/16C08K5/16C08K3/22
CPCC08L23/0853C08L23/0869C08L2203/18C08L2205/025C08L2205/035C08L2312/06C08K13/02C08K3/16C08K5/16C08L23/0815
Inventor 谢世平鲁雪莲刘军曾志安鲁尔军
Owner CHANGYUAN ELECTRONICS DONGGUAN
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