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High-processability radiation crosslinked polyolefin cable material

A technology of cross-linked polyolefin and processing performance, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc. It can solve the problems of difficult control of the process, affecting the quality of finished products, and poor processing performance, so as to achieve not easy melt fracture, Improvement of production efficiency and improvement of dispersibility

Inactive Publication Date: 2019-03-08
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing XLPO cable material is based on olefin resin and POE elastomer resin, which has poor processability and is prone to melt fracture during the extrusion process. The process is not easy to control, which seriously affects the quality of the finished product.

Method used

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  • High-processability radiation crosslinked polyolefin cable material
  • High-processability radiation crosslinked polyolefin cable material
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Experimental program
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Embodiment 1~4

[0037] Embodiments 1-4: A high-processing performance radiation crosslinked polyolefin cable material, including the following components in parts by weight:

[0038] Table 1

[0039]

[0040] The radiation cross-linked polyolefin cable material with high processability is prepared through the following steps:

[0041] S1. Mix 70~100 parts of ethylene-octene copolymer, 10~20 parts of ethylene-vinyl acetate copolymer, 5~20 parts of FX-5924, 3~5 parts of silicone, 1~3 parts of glyceryl palmitoyl stearate Parts, 0.5~2 parts of nano-magnesium silicate, 0.5~2 parts of antioxidant, 0.1~1 part of light stabilizer are added to the internal mixer to mix and plasticize, and then conveyed into the screw extruder through double-cone shearing for extrusion, water Strand granulation to obtain the B material;

[0042] S2. 36~50 parts of ethylene-octene copolymer, 8~10 parts of ethylene-vinyl acetate copolymer, 15~20 parts of maleic anhydride grafted ethylene-octene copolymer, 5~20 parts...

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Abstract

The invention discloses a high-processability radiation crosslinked polyolefin cable material. The high-processability radiation crosslinked polyolefin cable material comprises an A material and a B material, wherein the A material comprises the following components: an ethylene-octene copolymer, an ethylene-vinyl acetate copolymer, a maleic anhydride grafted ethylene-octene copolymer, maleic anhydride grafted polyethylene, aluminum hydroxide, magnesium hydroxide, sodium isethionate, trimethylolpropane trimethacrylate and succinimide; the B material comprises the following components: ethylene-octene copolymer, an ethylene-vinyl acetate copolymer, FX-5924, silicone, palmitoyl stearate, nano magnesium silicate, an antioxidant and a light stabilizer; and the weight ratio of the A material tothe B material is (90-110): (3-8). The cable material has good processbility and high pay-off speed; and the surfaces obtained by cable extrusion are smooth and delicate, so that the cable material is not easy to have melt fracture phenomenon and has a great application prospect.

Description

technical field [0001] The invention relates to a cable material, in particular to a radiation cross-linked polyolefin cable material with high processability. Background technique [0002] Harsh environmental conditions require that cable materials must have excellent properties, especially high temperature resistance, electrical insulation, aging resistance, oxidation resistance, flame retardancy, etc. The polyolefin cable material (XLPO) cross-linked by electron beam radiation not only inherits polyolefin's low relative density, good chemical resistance and water resistance, good mechanical strength, electrical insulation, low smoke and halogen-free, etc. It also has the characteristics of irradiating to make its molecular chain into a network structure, which greatly improves the mechanical properties, heat resistance and crack resistance, and improves the environmental aging resistance, which has a very large application prospect. [0003] However, the existing XLPO ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L51/06C08K13/02C08K3/34C08K5/103C08K5/42C08K5/3415H01B3/44
CPCC08L23/0815C08L2203/202C08L2205/035H01B3/441C08L23/0853C08L51/06C08K13/02C08K3/34C08K5/103C08K5/42C08K5/3415
Inventor 任小伟
Owner SUZHOU HENGLI COMM MATERIAL
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