CN103242575B - A kind of cable jacket material of high tensile - Google Patents

Abstract

The invention discloses a cable sheath material with high tensile resistance, which is composed of the following raw materials in parts by weight: neoprene CR121? 90-100, epoxy tetrahydrophthalate dioctyl 6- 8. Isophthalate 4-6, oxidized polyethylene wax 5-7, magnesium fluoride 2-3, ferrocene 3-5, antioxidant aw? 1-2, 2-mercaptobenzimidazole 1-2, dioctyl maleate 5-8, accelerator DM? 1-2, zinc borate 3-4, nano silicon dioxide 20-30, antioxidant DSTP2-3, ethylene thiourea 2-3, modified filler 25-35; the physical properties of the cable sheath material produced by the present invention Excellent, stable size, low shrinkage, strong tensile strength, tear resistance and resilience, good oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, and chemical reagent resistance. The modified filler invented has good dispersibility and low surface tension, further improves the tensile strength and constant elongation stress of the cable material, reduces heat generation and compression permanent deformation, not only can delay the aging speed of the cable material, but also can resist acid and alkali corrosion ,reduce manufacturing cost.

Description

A high tensile cable sheathing compound

technical field

The invention mainly relates to a cable sheathing material, in particular to a cable sheathing material with high tensile resistance.

Background technique

Neoprene has good physical and mechanical properties, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, and chemical reagent resistance. It has high tensile strength, elongation and reversible crystallinity, good adhesion, aging resistance, heat resistance, oil resistance and chemical corrosion resistance. It can be used for a long time at 80-100 °C and has a certain flame retardancy. However, the disadvantage is that the storage stability is poor. Therefore, using neoprene as a cable sheath material can ensure that it has strong heat resistance, aging resistance, oil resistance, corrosion resistance, etc., and by adding some modified fillers. Improving its storage stability further improves the performance of the cable sheathing material.

Contents of the invention

The object of the present invention is to provide a cable sheathing material with high tensile resistance.

The present invention is achieved through the following technical solutions:

A high-stretch cable sheathing material, which is composed of the following raw materials in parts by weight:

Neoprene CR12190-100, epoxy dioctyl tetrahydrophthalate 6-8, isophthalate 4-6, oxidized polyethylene wax 5-7, magnesium fluoride 2-3, ferrocene 3-5, anti-aging agent aw1-2, 2-mercaptobenzimidazole 1-2, dioctyl maleate 5-8, accelerator DM1-2, zinc borate 3-4, nano silicon dioxide 20- 30. Antioxidant DSTP2-3, ethylene thiourea 2-3, modified filler 25-35;

The modified filler is composed of the following raw materials in parts by weight:

0.3-0.5% sulfuric acid solution 900-1000, barium sulfide 80-90, ethanol 30-40, aluminum hydroxide powder 10-15, sorbitan monooleate 10-12, distearyloxy isopropoxy 2-3 base aluminate, 2-4 titanium dioxide, 1-2 methyl triethoxy silane, 4-6 sodium polyacrylate, 1-2 dicumyl peroxide, 4-6 sodium peroxide, stearin 2-4 acids, appropriate amount of water;

Continue to pass the above sulfuric acid solution into the barium sulfide, after the completion of the passage, add sodium polyacrylate, stir thoroughly at 60-80°C for 6-10 minutes, remove the filtrate by filtration, wash the filter cake with water 2-3 times, add 1 -2 times water, aluminum hydroxide powder, titanium dioxide, sorbitan monooleate, methyl triethoxysilane, stir and disperse at 2000-2500 rpm for 10-20 minutes, then add the remaining The raw materials are fully stirred, heated to a temperature of 70-80°C, and ball milled to obtain a modified filler with a fineness of 2-4μm.

The advantages of the present invention are:

The cable sheathing material produced by the invention has excellent physical properties, stable size, low shrinkage rate, strong tensile strength, tear resistance, and resilience, and has good oil resistance, heat resistance, flame resistance, sunlight resistance, and ozone resistance. Acid and alkali resistance, chemical reagent resistance, the modified filler of the present invention has good dispersibility and low surface tension, which further improves the tensile strength and constant elongation stress of the cable material, reduces heat generation and compression permanent deformation, and not only delays cable The aging speed of the material is improved, and it is resistant to acid and alkali corrosion, reducing production costs.

detailed description

Example 1

A high-stretch cable sheathing material is characterized in that it is composed of the following raw materials in parts by weight (kg):

Neoprene CR121100, epoxy dioctyl tetrahydrophthalate 8, isophthalate 6, oxidized polyethylene wax 7, magnesium fluoride 3, ferrocene 5, antioxidant aw2, 2-mercaptan Benzene imidazole 1, dioctyl maleate 8, accelerator DM2, zinc borate 4, nano silicon dioxide 30, antioxidant DSTP3, ethylenethiourea 3, modified filler 35;

The modified filler is composed of the following raw materials in parts by weight:

Concentration of 0.5% sulfuric acid solution 1000, barium sulfide 90, ethanol 40, aluminum hydroxide powder 15, sorbitan monooleate 12, distearoyloxy isopropoxy aluminate 3, titanium dioxide 4, formazan Triethoxysilane 2, Sodium Polyacrylate 6, Dicumyl Peroxide 2, Sodium Phosphate 6, Stearic Acid 3, Appropriate amount of water;

Continue to introduce the above sulfuric acid solution into the above barium sulfide. After the introduction is completed, add sodium polyacrylate, stir thoroughly at 80°C for 10 minutes, filter and remove the filtrate, wash the filter cake with water for 3 times, add 2 times of water and aluminum hydroxide powder , titanium dioxide, sorbitan monooleate, methyltriethoxysilane, stirred and separated at a speed of 2500 rpm for 20 minutes, added the remaining raw materials, stirred fully, heated to a temperature of 80°C, and ball milled. A modified filler with a fineness of 4 μm was obtained.

The preparation method of the described anti-stretch cable sheath material comprises the following steps:

(1) Mix the above-mentioned neoprene rubber CR121 with epoxy dioctyl tetrahydrophthalate, isophthalate, oxidized polyethylene wax, and magnesium fluoride into the internal mixer at a temperature of 85-90°C Mix for 2-3 minutes;

(2) Then add the above-mentioned ferrocene, anti-aging agent aw, 2-mercaptobenzimidazole, dioctyl maleate, zinc borate, nano silicon dioxide, antioxidant DSTP, ethylene thiourea, modified For permanent fillers, knead for 4-6 minutes at a temperature of 85-90°C;

(3) Add the remaining raw materials, knead at a temperature of 55-60°C for 2-3 minutes, discharge and cool to obtain the cable sheathing material.

Performance Testing:

Tensile strength: 17.8MPa;

Elongation at break: 705%;

Oil resistance: 20# engine oil 100℃×70h, the retention rate of elongation at break is 72.5%, and the retention rate of tensile strength is 78.5%;

Ozone resistance: 25℃, 24h, ozone concentration 0.024%, no cracking;

Aging resistance: 120℃, 150h, the retention rate of tensile strength is 91.5%, and the retention rate of elongation at break is 80.7%.

Claims (1)

1. a cable jacket material for high tensile, is characterized in that what it was made up of the raw material of following weight parts:

Chloroprene rubber CR12190-100, epoxy tetrahydro-2-ethylhexyl phthalate 6-8, isophthalic acid ester 4-6, oxidized polyethlene wax 5-7, magnesium fluoride 2-3, ferrocene 3-5, anti-aging agent aw1-2,2-thiol group benzimidazolyl 1-2, dioctyl maleate 5-8, altax 1-2, zinc borate 3-4, nano silicon 20-30, oxidation inhibitor DSTP2-3, ethylene thiourea 2-3, modified filler 25-35;

Described modified filler is made up of the raw material of following weight parts:

Sulphuric acid soln 900-1000, the barium sulphide 80-90 of 0.3-0.5%, ethanol 30-40, aluminium-hydroxide powder 10-15, sorbitan monooleate 10-12, distearyl acyl-oxygen aluminum isopropoxide acid esters 2-3, titanium dioxide 2-4, Union carbide A-162 1-2, sodium polyacrylate 4-6, dicumyl peroxide 1-2, sodium silicate 4-6, stearic acid 2-4, water are appropriate;

Above-mentioned sulphuric acid soln is continued to pass in barium sulphide, after passing into, add sodium polyacrylate, fully 6-10 minute is stirred at 60-80 DEG C, cross and filter filtrate, filter cake is carried out washing 2-3 time, add 1-2 times of water, aluminium-hydroxide powder, titanium dioxide, sorbitan monooleate, Union carbide A-162, dispersed with stirring 10-20 minute under the rotating speed of 2000-2500 rev/min, add each raw material of residue again, fully stir, being heated to temperature is 70-80 DEG C, ball milling, obtains the modified filler that fineness is 2-4 μm.