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Long-life high-temperature-resistant polyolefin insulating material as well as preparation method and application thereof

A long-life, insulating material technology, used in insulators, organic insulators, plastic/resin/wax insulators, etc., can solve the problem of flame retardant properties of materials that cannot meet the technical requirements, and achieve high flexibility, heat resistance, etc. Good cracking performance and good workability

Pending Publication Date: 2022-01-28
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above cable materials have good mechanical properties, electrical insulation properties, flame retardant properties, weather resistance and aging resistance, scratch resistance, acid and alkali resistance and processing properties. The photovoltaic cables prepared from them can meet the requirements of German 2Pfg1169 and European EN50618 standard requirements; the preparation method is simple to operate, high in production efficiency, high in process automation, and conducive to the plasticization and dispersion of various raw material components. However, the flame retardancy of the material and the need to meet the bundling combustion performance cannot meet the technical requirements

Method used

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  • Long-life high-temperature-resistant polyolefin insulating material as well as preparation method and application thereof
  • Long-life high-temperature-resistant polyolefin insulating material as well as preparation method and application thereof
  • Long-life high-temperature-resistant polyolefin insulating material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The long-life, high-temperature, weather-resistant, low-smoke, halogen-free, radiation-crosslinked polyolefin insulating material of this embodiment includes the following components in parts by weight:

[0044]

[0045]

[0046] Among them, the VA content of ethylene-vinyl acetate copolymer is 26.5%, the model is 7470k, the linear low density polyethylene is Borealis bimodal polyethylene, the model is 2230, and the ethylene-octene copolymer is Dow's ethylene-octene Alkene copolymer 3080, the grafting ratio of maleic anhydride grafting agent is 0.9%, and the antioxidant is a compound mixture of 0.4 parts of hindered phenols 1010, 0.2 parts of thioesters DLTP and 0.1 parts of copper anti-copper agent 1024 , the auxiliary crosslinking agent is TAIC, the lubricant is silicone masterbatch with a weight average molecular weight of 500,000, the flame retardant is aluminum hydroxide, the surface is modified by silane, the particle size is less than or equal to 2 μm, and t...

Embodiment 2

[0050] The difference between this example and Example 1 lies in the change of the number of antioxidants, wherein the total number of antioxidants is 1.2 parts, which are respectively 0.6 parts of hindered phenols 1010 and 0.4 parts of thioesters DLTP With the compound mixture of 0.2 part of anti-copper agent 1024, others are all the same as those of Example 1.

[0051] The preparation method of this embodiment is also the same as that of Example 1.

Embodiment 3

[0053] The difference between this example and Example 2 is that the number of parts of the auxiliary crosslinking agent TAIC changes to 0.8 parts, and the others are the same as those of Example 2.

[0054] The preparation method of this embodiment is also the same as that of Example 1.

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Abstract

The invention discloses a long-life high-temperature-resistant weather-resistant low-smoke halogen-free irradiation crosslinking polyolefin insulating material as well as a preparation method and application thereof. The long-service-life high-temperature-resistant weather-resistant low-smoke halogen-free irradiation crosslinking polyolefin insulating material comprises the following components in parts by weight: 15-25 parts of an ethylene-vinyl acetate copolymer, 5-20 parts of linear low density polyethylene, 3-10 parts of an ethylene-octylene copolymer, 2-10 parts of a maleic anhydride grafting agent, 40-65 parts of a flame retardant, 0.1-1 part of an assistant crosslinker, 0.5-1 part of an antioxidant, 0.5-2 parts of a lubricant and 0.3-1 part of a silane coupling agent. The long-life high-temperature-resistant weather-resistant low-smoke halogen-free irradiation cross-linked polyolefin insulating material disclosed by the invention is excellent in comprehensive performance, high in flexibility, excellent in mechanical property, high-temperature-resistant, long-term high-temperature aging-resistant, good in thermal cracking resistance and good in processability, and is particularly suitable for the fields of building house wiring, nuclear cables and the like.

Description

technical field [0001] The invention relates to the technical field of cable insulating materials, relates to a polyolefin insulating material and its preparation method and application, in particular to a low-smoke and halogen-free irradiation cross-linked polyolefin insulating material and its preparation method and application, in particular to a long-life High temperature and weather resistance low-smoke and halogen-free irradiation cross-linked polyolefin insulating material and its preparation method and application, especially relates to a long-life high-temperature and weather-resistant low-smoke and halogen-free irradiation cross-linked polyolefin insulating material for wiring wires and its preparation method and apply. Background technique [0002] With the progress of society, people's living standards continue to improve, and the increase in the number of household appliances has led to a rapid increase in electricity consumption. It has become normal for wires ...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L83/04C08K9/06C08K3/22C08K5/134H01B3/44
CPCC08L23/0853H01B3/441C08K2003/2227C08L2201/08C08L2201/22C08L2201/02C08L2203/202C08L2312/06C08L23/0815C08L83/04C08K9/06C08K3/22C08K5/1345
Inventor 董江涛朱毓栋卢钱张群
Owner SUZHOU HENGLI COMM MATERIAL
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