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Flame retardant HDPE cable material and preparation method thereof

A technology for cable materials and raw materials, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of low elongation, low tensile strength of cable materials, high temperature resistance, etc., and achieve high dielectric strength. and insulation, low cost and simple operation

Inactive Publication Date: 2016-07-13
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the above technical problems, the present application provides a flame-retardant HDPE cable material and its preparation method to solve the technical problems of low tensile strength, low elongation and high temperature resistance of existing cable materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Put the raw materials into the mixer for mixing, raise the temperature to 50°C, and mix at a mixing speed of 50r / min for 1h.

[0025] After mixing evenly, put it into the twin-screw extruder, the barrel temperature is 210°C, 215°C, 220°C, 225°C, 225°C, the screw temperature is 225°C, the head temperature is 230°C, 245°C, 245°C, 260°C, 260°C , screw speed 12r / min, feeding speed 20r / min.

[0026] The tensile strength of the product is 20MPa, and the elongation is 200%. Strength 26MV / m, low cost, simple operation, high dielectric strength and insulation.

[0027] Example 2:

Embodiment 2

[0029] Put the raw materials into the mixer for mixing, raise the temperature to 90°C, and mix at a mixing speed of 90r / min for 3h.

[0030] After mixing evenly, put it into the twin-screw extruder, the barrel temperature is 220°C, 225°C, 230°C, 235°C, 235°C, the screw temperature is 235°C, the head temperature is 240°C, 255°C, 255°C, 265°C, 270°C , screw speed 16r / min, feeding speed 40r / min.

[0031] The product has a tensile strength of 25MPa and an elongation of 300%; high temperature resistance, heat resistance temperature of 165℃; high product strength, tensile yield strength of 30MPa, melt flow index of 7g / 10min; Strength 26MV / m, low cost, simple operation, high dielectric strength and insulation.

[0032] Embodiment 3:

Embodiment 3

[0034] Put the raw materials into the mixer for mixing, raise the temperature to 50°C, and mix at a mixing speed of 50r / min for 1h.

[0035] After mixing evenly, put it into the twin-screw extruder, the barrel temperature is 210°C, 215°C, 220°C, 225°C, 225°C, the screw temperature is 225°C, the head temperature is 230°C, 245°C, 245°C, 260°C, 260°C , screw speed 12r / min, feeding speed 20r / min.

[0036] The product has a tensile strength of 30MPa and an elongation of 400%; high temperature resistance, heat resistance temperature of 170℃; high product strength, tensile yield strength of 35MPa, melt flow index of 8g / 10min; Strength 27MV / m, low cost, simple operation, high dielectric strength and insulation.

[0037] Embodiment 4:

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PUM

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Abstract

The invention discloses a flame retardant HDPE cable material and a preparation method thereof. HDPE, CPE, antimony trioxide, red phosphorus, aluminum hydroxide, polyethylene wax, an antioxidant DLTP, carbon black, an antioxidant DNP, an antioxidant CA and a heat stabilizer are weighed according to a proportion by weight part. The product has tensile strength of 20-40MPa and elongation of 200-600%, is high temperature resistant to a temperature of 160-180DEG C, and has high strength, tensile yield strength of 25-45MPa, a melt flow index of 6-10g / 10min, embrittlement performance of no crack at -70DEG C, and dielectric strength of 26-28MV / m. Also, the flame retardant HDPE cable material has the advantages of low cost, simple operation, and high dielectric strength and insulation performance.

Description

technical field [0001] The application belongs to the field of cable materials, in particular to a flame-retardant HDPE cable material and a preparation method thereof. Background technique [0002] High-density polyethylene is a highly crystalline, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, and the thin section is translucent to a certain extent. PE has excellent resistance to most domestic and industrial chemicals. [0003] HDPE is a highly crystalline, non-polar thermoplastic resin. High-density polyethylene is non-toxic, tasteless and odorless white particles with a melting point of about 130°C and a relative density of 0.941~0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties, environmental stress cracking resistance is also good. The melting temperature is 120~160°C. For materials with larger molecules, the recomm...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/28C08K13/02C08K3/22C08K3/04C08K3/02H01B3/44
CPCC08L23/06C08L2201/08C08L2203/202C08L2205/03C08L2207/062H01B3/441C08L23/286C08K13/02C08K2003/2227C08K3/04C08K2003/026C08K3/2279
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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