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125 DEG C irradiation crosslinking type low-smoke halogen-free polyolefin as well as preparation method and application thereof

A cross-linked, polyolefin technology, used in plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve problems such as low tensile properties, low volume resistivity, and improved material conductivity

Pending Publication Date: 2021-05-11
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the low tensile performance and poor processing performance of the existing low-smoke halogen-free polyolefin cable materials, and the electrical conductivity of the material is improved, and the volume resistivity is low, which will seriously affect the electrification and the final use. Defects and deficiencies, provide a 125 ℃ radiation cross-linked low-smoke halogen-free polyolefin

Method used

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  • 125 DEG C irradiation crosslinking type low-smoke halogen-free polyolefin as well as preparation method and application thereof
  • 125 DEG C irradiation crosslinking type low-smoke halogen-free polyolefin as well as preparation method and application thereof
  • 125 DEG C irradiation crosslinking type low-smoke halogen-free polyolefin as well as preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0056] The preparation method of modified nano kaolin is as follows:

[0057] Put the kaolin into a drying oven at 90°C, dry it in vacuum for 4 hours, and fully dry the water in the kaolin;

[0058] Add the dried nano-kaolin and dimethyl sulfoxide into a constant temperature oil bath according to the weight ratio of 1:2, react at 120°C for 4 hours, filter, wash the excess dimethyl sulfoxide with acetone, and dry in vacuum to obtain di Methyl sulfoxide modified kaolin compound;

[0059] Continue to mix the compound and stearic acid according to the weight ratio of 100:1 through a high-speed mixer and stir rapidly for 5 minutes to obtain the final dimethyl sulfoxide and stearic acid modified kaolin.

[0060] The concrete detection method of each performance of the present invention is as follows:

[0061] (1). Tensile properties: according to GB / T 1040.3-2006, type 5 spline, thickness 1±0.1mm, tensile rate 250mm / min;

[0062] (2) Volume resistivity: test according to the requ...

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Abstract

The invention discloses 125 DEG C irradiation crosslinking type low-smoke halogen-free polyolefin as well as a preparation method and application thereof. The low-smoke halogen-free polyolefin comprises the following components in parts by weight: 30-50 parts of EVA, 40-60 parts of POE, 5-10 parts of a compatilizer, 80-100 parts of aluminum hydroxide, 20-30 parts of modified nano kaolin, 3-5 parts of red phosphorus, 2 parts of a processing aid, 0.5 part of a cross-linking agent, and 0.5 part of an antioxidant. According to the 125 DEG C irradiation crosslinking type low-smoke halogen-free polyolefin provided by the invention, the modified nano kaolin and the red phosphorus are added, and the tensile property, the flame retardant property and the volume resistivity of the polyolefin cable material are effectively improved through a synergistic effect with other components.

Description

technical field [0001] The invention relates to the technical field of low-smoke halogen-free cable flame retardancy, and more particularly relates to a 125°C irradiation crosslinking type low-smoke halogen-free polyolefin and its preparation method and application. Background technique [0002] With the rapid development of the national economy, the country's infrastructure has been rapidly stimulated, especially in urban reconstruction, subway construction, and power grid transformation. The demand for wires and cables is increasing, and the cable industry provides broad development prospects. With the improvement of people's living standards, the improvement of safety and environmental awareness, and the introduction of related national standards and industries, the cables used in some densely populated places, such as subways, shopping malls, gas stations, and dense residential areas. The material has the characteristics of low smoke, environmental protection, low toxici...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L83/04C08L23/06C08L91/06C08L51/06C08K13/06C08K9/04C08K3/34C08K9/10C08K3/02C08K5/098C08K3/22H01B3/44
CPCC08L23/0853C08L23/0815H01B3/441C08L2201/02C08L2201/22C08L2203/202C08K2201/011C08K2003/026C08K2003/2227C08L2205/035C08L2205/08C08L83/04C08L23/06C08L51/06C08L91/06C08K13/06C08K9/04C08K3/346C08K9/10C08K3/02C08K5/098C08K3/22
Inventor 肖孟杰黄险波叶南飚付晓梁家荣李计彪刘乐文陈平绪
Owner KINGFA SCI & TECH CO LTD
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