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a cable material

A cable material, polyethylene technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of limiting the application range of cable materials, reducing the tensile strength and elongation at break of polyethylene cable materials, etc. Achieve the effect of large mechanical properties, wide application range, strong tensile strength and elongation at break

Active Publication Date: 2022-06-07
WENZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the flame retardants added to polyethylene are inorganic flame retardants, such as aluminum hydroxide, magnesium hydroxide and other substances. Although the addition of these inorganic flame retardants can improve the flame retardant performance of polyethylene cable materials, but to a certain extent It will reduce the tensile strength and elongation at break of polyethylene cable material, thus limiting the application range of cable material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation method of 6-(difluoromethoxy)-2-(trimethylsilyl)benzo[4,5]imidazo[2,1-b]thiazole comprises the following steps:

[0053] Trimethylethynyl silicon (0.1mol), 5-difluoromethoxy-2-mercapto-1H-benzimidazole (0.13mol), copper fluoride (0.025mol), 2,9-diisopropyl -1,10-Phenanthroline (0.03mol), elemental iodine (0.1mol) and cesium carbonate (0.2mol) were put into a reaction vessel with 200ml of toluene and stirred and mixed; The reaction was carried out for 20 hours to obtain 6-(difluoromethoxy)-2-(trimethylsilyl)benzo[4,5]imidazo[2,1-b]thiazole;

[0054] Its reaction formula is:

[0055]

[0056] Characterization data: 1 H NMR (CDCl 3 ,500MHz,ppm):δ7.54-7.32(m,2H),7.34-7.31(m,1H),7.10-6.89(m,2H),-0.31(s,9H). 13 C NMR (CDCl 3 ,125MHz,ppm):δ167.0,155.9,143.1,141.2,135.8,120.3,119.7,116.6,111.3,100.6,2.5.

[0057] The structural formula of 6-(difluoromethoxy)-2-(trimethylsilyl)benzo[4,5]imidazo[2,1-b]thiazole is

[0058]

Embodiment 2

[0060] The modified polyethylene comprises the following components by weight:

[0061] 60 parts of polyethylene;

[0062] 2 parts of tert-butyl peroxymaleate;

[0063] 3 parts of sodium dodecylbenzenesulfonate;

[0064] 2 parts of dimethylaminopropyl methacryloyl;

[0065] 2 parts of styrene;

[0066] 7 parts of modifier;

[0067] The modifier is vinyltrimethoxysilane, 2,3-bis(2,4,5-trimethyl-3-thiophene) maleic anhydride and (3,3,3-trifluoropropyl) trimethyl A mixture of oxysilanes with a mass ratio of 1:1:1.

[0068] The preparation method of described modified polyethylene comprises the following steps:

[0069] Step 1: Weigh the required materials according to the set weight parts, first mix polyethylene, tert-butyl peroxymaleate, sodium dodecylbenzenesulfonate, dimethylaminopropyl methacryloyl and benzene Add ethylene into the reaction vessel with acetone and stir to mix. After mixing evenly, carry out under the protection of nitrogen at a temperature of 70°C, and...

Embodiment 3

[0072] A cable material, comprising the following components by weight:

[0073] 75 parts of modified polyethylene;

[0074] EPDM rubber 25 points;

[0075] 12 parts of flame retardant;

[0076] 7 parts of plasticizer;

[0077] 3 parts of stabilizer;

[0078] Anti-aging agent 3 parts;

[0079] 1 part lubricant;

[0080] Filling 4 parts.

[0081] Wherein modified polyethylene is made by embodiment 2;

[0082] The flame retardant is 6-(difluoromethoxy)-2-(trimethylsilyl)benzo[4,5]imidazo[2,1-b]thiazole, 10-(2,5 -dihydroxyphenyl)-10-hydrogen-9-oxa-10-phosphaphenanthrene-10-oxide and a mixture of triphenyl antimony oxide, the mass ratio of which is 2:3:1; where 6-(two Fluoromethoxy)-2-(trimethylsilyl)benzo[4,5]imidazo[2,1-b]thiazole was prepared from Example 1;

[0083] The stabilizer is bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 1,2-epoxy-4-vinylcyclohexane and tributylvinyltin mixture with a mass ratio of 2:1:1.

[0084] The anti-aging agent is (R)-N-epoxypropyl...

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Abstract

The invention discloses a cable material, which is formed by using modified polyethylene and EPDM rubber as base materials, and adding flame retardants, stabilizers, anti-aging agents and other additives at the same time; wherein the modified polyethylene is made of polystyrene Ethylene is used as a raw material, tert-butyl peroxymaleate is used as an initiator, sodium dodecylbenzenesulfonate is used as a catalyst, and a modifying agent is added; the modifying agent is selected from vinyltrimethoxysilane, Mixture of 2,3‑bis(2,4,5‑trimethyl‑3‑thiophene) maleic anhydride and (3,3,3‑trifluoropropyl) trimethoxysilane; flame retardant selected 6‑ (Difluoromethoxy)‑2‑(trimethylsilyl)benzo[4,5]imidazo[2,1‑b]thiazole, 10‑(2,5‑dihydroxyphenyl)‑10 A mixture of -hydrogen-9-oxa-10-phosphaphenanthrene-10-oxide and triphenyl antimony oxide; finally the cable material prepared by the present invention not only has larger tensile strength and elongation at break, And it has high flame retardancy, even after heat aging and sunlight aging treatment, it still has strong tensile strength and elongation at break.

Description

technical field [0001] The invention relates to the technical field of new cable materials, and more specifically relates to a cable material. Background technique [0002] Plastics for wire and cable insulation and sheathing are commonly known as cable materials, including rubber, plastic, nylon and other varieties. Among them, polyethylene cable material has a very wide range of applications in the field of wire and cable because of its light weight, good mechanical properties, and very good low temperature resistance, good environmental stress cracking resistance, and good processability. Therefore, polyethylene cable material is one of the indispensable important components in cable material. [0003] With the rapid development of science and technology, people have higher and higher requirements for the performance of cable materials. In order to improve safety, people add an appropriate amount of flame retardant to polyethylene to improve the flame retardant performan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08L23/16C08K13/02C08K5/548C08K5/5313C08K5/59C08K5/3435C08K5/1515C08K5/57C08K5/3415C08K5/3412C08K5/132C07F7/08C08F255/02C08F230/08C08F222/04H01B3/44
CPCC08L51/06C07F7/0814C07F7/083C08F255/02H01B3/441C08L2203/202C08L2201/08C08L2201/02C08F230/08C08F222/04C08L23/16C08K13/02C08K5/5477C08K5/5313C08K5/59C08K5/3435C08K5/1515C08K5/57C08K5/3415C08K5/3412C08K5/132
Inventor 刘建平宋霞刘子赫
Owner WENZHOU UNIV
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