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Modified nitrile rubber sheathing material for cable for oil well

A technology of nitrile rubber and sheath materials, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of nitrile rubber aging resistance, poor oxidation resistance, etc., to improve thermal stability and compressive strength, high Adsorption capacity, effect of improving oil resistance

Inactive Publication Date: 2015-07-22
ANHUI WUZHOU SPECIAL CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, due to the existence of double bonds, the aging resistance and oxidation resistance of nitrile rubber are not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of modified nitrile rubber sheath material for oil well cable proposed by the present invention, its raw material comprises by weight: 35 parts of nitrile rubber, 25 parts of modified montmorillonite compound nylon / polypropylene composite material, styrene butadiene rubber 13 parts, 7 parts of polyurethane elastomer, 16 parts of inorganic filler, 1 part of sulfur powder, 4 parts of accelerator DM, 1680.5 parts of antioxidant, 10100.6 parts of antioxidant, 1.1 parts of plasticizer DCHP, monoalkoxy pyrophosphate 3 parts of ester-type titanate coupling agent, 4 parts of epoxy octyl stearate; among them, the inorganic filler is made by mixing 8 parts of calcite powder, 4 parts of mica powder, and 5 parts of talc powder;

[0016] Wherein, the modified montmorillonite composite nylon / polypropylene composite material is prepared in the following manner: 5 parts of montmorillonite and 25 parts of acid solution are added to the first reaction vessel in parts by weight, and...

Embodiment 2

[0018] A kind of modified nitrile rubber sheath material for oil well cable proposed by the present invention, its raw material comprises by weight: 32 parts of nitrile rubber, 28 parts of modified montmorillonite compound nylon / polypropylene composite material, styrene butadiene rubber 10 parts, 10 parts of polyurethane elastomer, 13 parts of inorganic filler, 1.3 parts of sulfur powder, 2 parts of accelerator DM, 1680.8 parts of antioxidant, 10100.3 parts of antioxidant, 1.4 parts of plasticizer DCHP, monoalkoxy pyrophosphate 1 part of ester-type titanate coupling agent, 7 parts of epoxy octyl stearate; wherein, the inorganic filler is made by mixing 5 parts of calcite powder, 6 parts of mica powder, and 2 parts of talc powder;

[0019] Wherein, the modified montmorillonite composite nylon / polypropylene composite material is prepared in the following manner: 8 parts of montmorillonite and 20 parts of acid solution are added to the first reaction vessel in parts by weight, and...

Embodiment 3

[0021] A kind of modified nitrile rubber sheath material for oil well cable proposed by the present invention, its raw material comprises by weight: 34 parts of nitrile rubber, 26 parts of modified montmorillonite compound nylon / polypropylene composite material, styrene butadiene rubber 12 parts, 8 parts of polyurethane elastomer, 15 parts of inorganic filler, 1.1 parts of sulfur powder, 3 parts of accelerator DM, 1680.6 parts of antioxidant, 10100.5 parts of antioxidant, 1.2 parts of plasticizer DCHP, monoalkoxy pyrophosphate 2 parts of ester-type titanate coupling agent, 5 parts of epoxy octyl stearate; the inorganic filler is made by mixing 7 parts of calcite powder, 4.5 parts of mica powder, and 4 parts of talc powder;

[0022] Wherein, the modified montmorillonite composite nylon / polypropylene composite material is prepared in the following manner: 6 parts of montmorillonite and 24 parts of acid solution are added to the first reaction vessel in parts by weight, and the firs...

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PUM

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Abstract

The invention discloses a modified nitrile rubber sheathing material for a cable for an oil well. The modified nitrile rubber sheathing material comprises raw materials in parts by weight as follows: 32-35 parts of nitrile rubber, 25-28 parts of a modified montmorillonite compound nylon / polypropylene composite material, 10-13 parts of butadiene styrene rubber, 7-10 parts of a polyurethane elastomer, 13-16 parts of inorganic filler, 1-1.3 parts of sulphur powder, 2-4 parts of an accelerator DM, 0.5-0.8 parts of an antioxidant 168, 0.3-0.6 parts of an antioxidant 1010, 1.1-1.4 parts of a DCHP (plasticizer dicyclohexyl phthalate), 1-3 parts of a mono-alkoxy pyrophosphate type titanate coupling agent and 4-7 parts of epoxy ethylhexyl stearate. The modified nitrile rubber sheathing material has excellent oil-resistant and flame-retardant performance, good mechanical performance such as tensile strength, stress at definite elongation, tearing resistance, extrusion and rolling and the like as well as good storage stability.

Description

technical field [0001] The invention relates to the technical field of rubber sheath materials, in particular to a modified nitrile rubber sheath material for oil well cables. Background technique [0002] Nitrile rubber is a random copolymer of butadiene and acrylonitrile two monomers through free radical initiated emulsion polymerization. There are unsaturated bonds and polar groups -CN in the molecular structure of nitrile rubber, making nitrile Rubber has a series of excellent properties, such as good oil resistance and excellent physical and mechanical properties. But at the same time, due to the existence of double bonds, the aging resistance and oxidation resistance of nitrile rubber are not good. In the cable industry, the selected materials usually have good tensile strength, anti-aging, flame retardant and other properties. Therefore, it is necessary to make up for the shortcomings of nitrile rubber such as poor flame retardancy and low tensile strength by means ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L77/02C08L23/12C08L9/06C08L75/04C08K13/06C08K9/04C08K9/02C08K3/34C08K3/06C08K5/1515C08K3/26C08K5/134C08K5/526H01B7/17
CPCC08L9/02C08L2201/02C08L2203/202C08L2205/02C08L2205/035H01B7/17C08L77/02C08L23/12C08L9/06C08L75/04C08K13/06C08K3/346C08K3/34C08K3/06C08K5/1515
Inventor 汤传盛刘玉明黄军
Owner ANHUI WUZHOU SPECIAL CABLE GRP
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