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Chemical-corrosion-resistant insulating material and preparation method thereof

A technology of chemical corrosion resistance and insulating materials, which is applied in the field of composite material processing, can solve the problems of affecting the comprehensive performance of materials, corrosion resistance and lower mechanical properties, etc., and achieve good safety performance, improve mechanical properties, and excellent chemical corrosion resistance. Effect

Pending Publication Date: 2021-06-08
苏敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite cable insulation material prepared in this application can improve the corrosion resistance to a certain extent, but the insulation material reduces the mechanical properties while improving the corrosion resistance, which affects the overall performance of the material

Method used

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  • Chemical-corrosion-resistant insulating material and preparation method thereof
  • Chemical-corrosion-resistant insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The preparation method of the insulating material comprises the steps of:

[0032] The first step is to add chloroprene rubber and natural rubber into the internal mixer under the condition that the initial temperature of the mixing room is 50-60°C and the rotor speed is 80-90r / min. Strong agent and coupling agent, mixed for 8-10 minutes, and then discharged; the discharged rubber was put into the open mill for re-milling, and accelerators and vulcanizing agents were added, and then knives, thin passes, and triangular bags were mixed. After refining evenly, increase the roller distance to 2mm, and discharge the sheet to obtain the mixed rubber;

[0033] The second step is to mix the rubber compound, modified low-density polyethylene, reinforcing filler, and ammonium polyphosphate and then add it to the torque rheometer. The melting temperature is 100-105°C, and the screw speed is 60-70r / min. , the blending time is 25-28min; then take out the mixture, put it into a flat...

Embodiment 1

[0051] A chemical-resistant insulating material, comprising the following raw materials in parts by weight: 60 parts of modified low-density polyethylene, 14 parts of chloroprene rubber, 4 parts of natural rubber, 0.05 parts of accelerator, 0.2 parts of reinforcing agent, and 0.02 parts of vulcanizing agent 0.03 parts of coupling agent, 9 parts of flame retardant, 2 parts of ammonium polyphosphate, 3 parts of reinforcing filler;

[0052] The insulating material is made by the following steps:

[0053] The first step is to add neoprene and natural rubber into the internal mixer under the condition that the initial temperature of the mixing room is 50°C and the rotor speed is 80r / min. After 2 minutes, the reinforcing agent and coupling agent are added in sequence. , mixed for 8 minutes, and deglued; the discharged rubber material was put into the open mill for re-milling, and accelerators and vulcanizing agents were added, and knives, thin passes, and triangular bags were mixed....

Embodiment 2

[0056] A chemical-resistant insulating material, comprising the following raw materials in parts by weight: 65 parts of modified low-density polyethylene, 15 parts of neoprene, 4.5 parts of natural rubber, 0.055 parts of accelerator, 0.25 parts of reinforcing agent, and 0.025 parts of vulcanizing agent 0.035 parts of coupling agent, 11.5 parts of flame retardant, 2.5 parts of ammonium polyphosphate, 3.5 parts of reinforcing filler;

[0057] The insulating material is made by the following steps:

[0058] The first step is to add chloroprene rubber and natural rubber into the internal mixer under the condition that the initial temperature of the mixing room is 55°C and the rotor speed is 85r / min. After 2.5 minutes, add the reinforcing agent and coupling Adding agent, mixing for 9 minutes, deglue; the discharged rubber material is put into the open mill for re-milling, and the accelerator and vulcanizing agent are added, and the knives, thin pass, and triangular bag mixing are c...

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Abstract

The invention discloses a chemical-corrosion-resistant insulating material, which is prepared from the following raw materials in parts by weight: 60 to 70 parts of modified low-density polyethylene, 14 to 16 parts of chloroprene rubber, 4 to 5 parts of natural rubber, 0.05 to 0.06 part of an accelerant, 0.2 to 0.3 part of a reinforcing agent, 0.02 to 0.03 part of a vulcanizing agent, 0.03 to 0.04 part of a coupling agent, 9 to 12 parts of a flame retardant, 2 to 3 parts of ammonium polyphosphate and 3 to 4 parts of a reinforcing filler. The invention also discloses a preparation method of the insulating material. Modified low-density polyethylene, chloroprene rubber and natural rubber are adopted as matrixes of the composite material, the flame retardant is added into the composite material and compounded with ammonium polyphosphate, the material is endowed with good flame retardant property, and the reinforcing filler is added into the composite material to further improve the mechanical property of the material. The obtained material has excellent chemical corrosion resistance, mechanical property, insulating property and flame retardant property.

Description

technical field [0001] The invention belongs to the field of composite material processing, and in particular relates to a chemical corrosion-resistant insulating material and a preparation method thereof. Background technique [0002] The cable includes a conductor, an insulating layer and a protective layer; the insulating layer is formed by wrapping the insulating material on the outside of the conductor with different thicknesses according to the requirements of its withstand voltage. The insulating material used for the cable should have a high insulation resistance. , high breakdown electric field strength, low dielectric loss and low dielectric constant; commonly used insulating materials in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc.; the use of cables has gradually changed from As the land expands to the sea, ships and buoys also need cables to transmit signals and power during use. However, when cables...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08L11/00C08L7/00C08K13/06C08K3/32C08K5/5399C08K9/06C08K7/14C08K7/10C08J3/28C08F255/02C08F220/32
CPCC08L23/06C08J3/28C08F255/02C08L2201/02C08L2207/066C08L2205/035C08L2203/202C08K2003/323C08J2323/06C08L51/06C08L11/00C08L7/00C08K13/06C08K3/32C08K5/5399C08K9/06C08K7/14C08K7/10C08F220/325
Inventor 苏敏
Owner 苏敏
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