Oil-resistant, high-temperature-resistant, halogen-free, flame-retardant heat-shrinkable marking tube and production method thereof

A technology of high temperature resistance and marking tube, which is applied in the field of oil resistance, high temperature resistance, halogen-free flame retardant heat shrinkable marking tube, can solve the problems of poor safety and reliability, thick smoke and harmful gas, and endanger the health of personnel, etc., and achieves good oil resistance effect and excellent resistance. burn effect

Active Publication Date: 2020-11-27
SHENZHEN WOER HEAT SHRINKABLE MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently used heat-shrinkable marking sleeves, halogen-containing materials can be both flame-retardant and oil-resistant, but when a fire occurs, the combustion will produce dense smoke and harmful gases, endangering the health of personnel; halogen-free materials can be both flame-retardant and oil-resistant. Low smoke and low toxicity, but unable to resist the erosion of various oils, poor safety and reliability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Masterbatch processing steps: First, 80 parts of low-density polyethylene (melt index 1.8~2g / 10min, density 0.918g / cm 3 ), 15 parts of ethylene-methyl acrylate, 5 parts of maleic anhydride grafted linear low density polyethylene copolymer, 60 parts of primary flame retardant (diethylaluminum hypophosphite), 30 parts of synergistic antioxidant (of which , 12 parts of melamine cyanurate, 18 parts of aluminum hydroxide), 4.5 parts of antioxidant (among them, 1.5 parts of antioxidant 1010 (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl ) propionate] pentaerythritol ester), 1.5 parts of antioxidant DLTP (dilauryl thiodipropionate), 0.7 parts of antioxidant S-9228 (bis(2,4-dicumylphenyl) pentaerythritol disub Phosphate ester), 0.3 parts of anti-copper agent MD-1024), 1 part of zinc stearate, 1.5 parts of sensitizing crosslinking agent, and 6 parts of color masterbatch are added to the internal mixer in sequence, and the material temperature is controlled within the range of 1...

Embodiment 2

[0043] (1) Masterbatch processing steps: First, 85 parts of polyethylene (among them, 45 parts of low-density polyethylene (melt index 1.8~2g / 10min, density 0.918g / cm 3), 40 parts of metallocene polyethylene), 10 parts of ethylene-methyl acrylate, 5 parts of maleic anhydride grafted linear low density polyethylene copolymer, 60 parts of primary flame retardant (diethyl aluminum hypophosphite), 30 parts Parts of synergistic antioxidant (among them, 12 parts of melamine cyanurate, 18 parts of aluminum hydroxide), 4.5 parts of antioxidant (of which, 1.5 parts of antioxidant 1010 (tetra[β-(3,5-ditertiary Butyl-4-hydroxyphenyl) propionate] pentaerythritol ester), 1.5 parts of antioxidant DLTP (dilauryl thiodipropionate), 0.7 parts of antioxidant S-9228 (bis(2,4-di cumylphenyl) pentaerythritol diphosphite), 0.3 parts of anti-copper agent MD-1024), 1 part of zinc stearate, 1.5 parts of sensitizing crosslinking agent, and 6 parts of color masterbatch are added to the internal mixer in...

Embodiment 3

[0049] (1) Masterbatch processing steps: First, 75 parts of polyethylene (among them, 45 parts of low-density polyethylene (melt index 1.8~2g / 10min, density 0.918g / cm 3 ), 30 parts of metallocene polyethylene), 10 parts of ethylene-octene copolymer, 10 parts of ethylene-vinyl acetate-carboxyl terpolymer, 5 parts of maleic anhydride grafted linear low density polyethylene copolymer, 60 parts of main Flame retardant (of which, 40 parts of diethyl aluminum hypophosphite, 20 parts of ammonium polyphosphate), 30 parts of synergistic antioxidant (of which, 15 parts of melamine cyanurate, 10 parts of antimony trioxide, 5 parts of hydrogen aluminum oxide), 6 parts of antioxidant (among them, 2.5 parts of antioxidant 1010 (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester), 2.0 parts of anti-oxidant Oxygen agent DLTP (dilauryl thiodipropionate), 1.2 parts of antioxidant S-9228 (bis(2,4-dicumylphenyl) pentaerythritol diphosphite), 0.3 parts of anti-copper age...

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Abstract

The invention discloses an oil-resistant high-temperature-resistant halogen-free flame retardant thermal shrinkage identification tube. Preparation materials of the thermal shrinkage identification tube comprise the following components in parts by weight: 70-100 parts of polyethylene, 10-35 parts of a vinyl polymer, 0-10 parts of a compatibilizer, 25-70 parts of a main flame retardant, 30-75 parts of a synergistic flame retardant, 0.2-8 parts of a lubricating agent, 0.1-2 parts of a sensitized crosslinking agent, 2-6 parts of an antioxidant and 0-8 parts of color master batches. The oil-resistant high-temperature-resistant halogen-free flame retardant thermal shrinkage identification tube has an excellent flame retardant effect, the flame retardant grade can reach American UL224 VW-1, no crack is produced when thermal shock is continued for 4 hours at the temperature of 250 DEG C, the heat resistance meets AMS-DTL-23053 / 5 Classes1&2 (temperature grade 135 DEG C) ageing requirement, and the elongation at break after ageing is carried out for 168 hours is more than 100%; and the thermal shrinkage identification tube product meets IEC 61249-2-21 halogen-free environmental protection requirements and has a better oil-resistant effect, and the oil-resistant fastness of an identification character can reach the EN 50343 standard requirement.

Description

technical field [0001] The invention relates to an oil-resistant, high-temperature-resistant, halogen-free, flame-retardant heat-shrinkable marking tube and a production method thereof. Background technique [0002] In order to achieve the convenience of cable system assembly and the reliability of maintenance, information and power cable systems of modern military equipment and cable systems in various electronic and power industries have marking requirements. There are many types of marking products, such as spray paint Characters, metal engraved characters, label paper plus transparent sheath, etc., all have obvious shortcomings, some of which are too expensive, some have poor heat resistance and short service life, some are difficult to implement and difficult to use in large quantities, and some have poor marking performance. Poor, unable to meet the increasing demand for high-end technology. As an increasingly popular cable marking product in recent years, the heat sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K13/02C08K3/22C08K3/32C08K5/3492C08K5/5313
CPCC08K2201/014C08L23/06C08L2201/02C08L2201/08C08L2201/22C08L2203/18C08L2205/025C08L2205/03C08L2205/035C08L2205/08C08L2207/062C08L2207/066C08L2310/00C08L2312/06C08L23/0869C08L51/06C08K13/02C08K2003/2227C08K5/34928C08K5/5313C08L23/0815C08L23/0853C08K3/2279C08K2003/323
Inventor 夏春亮李滔冯雪雁康树峰刘占理高世楚张新可
Owner SHENZHEN WOER HEAT SHRINKABLE MATERIAL
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