Corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

A polyolefin cable material and corrosion-resistant technology, which is applied in the field of cable materials, can solve problems such as instability, great influence on the mechanical properties of cable materials, and impact on service life, and achieve enhanced interface effects, improved mechanical properties, and good corrosion resistance performance effect

Pending Publication Date: 2020-08-07
上海方之德新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to achieve a better flame-retardant effect for the above-mentioned cable materials, the addition amount of magnesium hydroxide has reached more than 50%, but when the addition amount of the inorganic flame retardant is too high, its dispersion in the body is unstable, which is harmful to the cable materials. The mechanical properties are greatly affected, which affects its service life

Method used

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  • Corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof
  • Corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof
  • Corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Embodiment 1: as figure 1, a corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material, the components and their corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0052] S1, uniformly mixing polyolefin, diethanolamine, inorganic flame retardant, montmorillonite and maleic anhydride grafted polyethylene at a speed of 300 rpm for 10 minutes to obtain a mixture A;

[0053] S2, add silane coupling agent and silicone oil to the mixture A obtained in step S1, and continue mixing at 300 rpm for 10 minutes to obtain mixture B;

[0054] S3, melting, kneading, pelletizing and packaging the compound B in the twin-screw extruder, and the set temperatures of each section of the twin-screw are 130°C, 140°C, 140°C, 140°C, 150°C, 150°C , 150°C, 160°C, and the screw speed during extrusion is 200rpm.

[0055] In this embodiment, magnesium hydroxide with an average particle size of 1.8 μm is used as the inorgan...

Embodiment 2-6

[0056] Example 2-6: A corrosion-resistant, low-smoke, halogen-free, flame-retardant polyolefin cable material. The difference from Example 1 lies in that the components and their corresponding parts by weight are shown in Table 1.

[0057] Each component and parts by weight thereof in table 1 embodiment 1-6

[0058]

Embodiment 7

[0059] Example 7: A corrosion-resistant, low-smoke, halogen-free, flame-retardant polyolefin cable material, which differs from Example 1 in that it is prepared through the following steps:

[0060] S1, uniformly mixing polyolefin, diethanolamine, inorganic flame retardant, montmorillonite and maleic anhydride grafted polyethylene at a speed of 500 rpm for 5 minutes to obtain a mixture A;

[0061] S2, add silane coupling agent and silicone oil to the mixture A obtained in step S1, and continue mixing at 500 rpm for 5 minutes to obtain mixture B;

[0062] S3, melting, kneading, pelletizing and packaging the compound B in the twin-screw extruder, and the set temperatures of each section of the twin-screw are 130°C, 140°C, 140°C, 140°C, 150°C, 150°C , 150°C, 160°C, and the screw speed during extrusion is 200rpm.

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Abstract

The invention discloses a corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof, and relates to the technical field of cable materials.The corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material is characterized by being prepared from the following components in parts by weight: 100-150 parts of polyolefin; 20-30 parts of diethanol amine; 50-100 parts of an inorganic flame retardant; 3-8 parts of a silane coupling agent; 25-50 parts of montmorillonite; 0.5-1 part of an antioxidant; 5-10 parts of maleic anhydride grafted polyethylene; and 3-8 parts of silicone oil. The prepared corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material has the advantages of being good in corrosion resistance and high in mechanical property.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a corrosion-resistant low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof. Background technique [0002] With the rapid development of my country's modern industry, safety and prevention measures should be more and more perfect. In many large public places, in order to avoid the secondary disaster caused by the large amount of smoke and acid gas caused by the fire of cables, special equipment for transmission of electric energy and communication The wires and cables used for signals are not only required to have flame retardant properties such as preventing flame spread when the cable and the surrounding environment are on fire, and can maintain the cable to continue to transmit electric energy and communication signals, but also have low smoke emission when burning. The gas produced has low corrosiveness, which is conducive to ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K13/06C08K9/04C08K9/06C08K3/34C08K5/17C08K3/22
CPCC08L23/06C08L23/0815C08L2205/035C08L2205/025C08L2207/066C08L2207/062C08L2201/02C08L2201/22C08L2203/202C08L2205/08C08L2201/08C08K2003/2224C08K2003/2227C08K2201/011C08K2201/003C08L51/06C08K13/06C08K9/04C08K9/06C08K3/346C08K5/17C08K3/22
Inventor 董建东何亚丽李俊龙
Owner 上海方之德新材料有限公司
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