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Organosilane crosslinked polyethylene wires and cables of 10 kV or below and preparation method thereof

A silane cross-linking, wire and cable technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of large gaps, achieve high insulation resistance, improve mechanical properties, and good thermal denaturation effects

Inactive Publication Date: 2016-10-12
浙江太湖远大新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, in the industry, the temperature grade of 105°C and below can meet the requirements no matter whether XLPE, XLPVC or PVC is used. Above 150°C, the application of silicone rubber, fluoroplastics, polyimide and other varieties has also matured, but in the middle temperature grade (such as 125°C, 150°C) application development, there is a big gap with foreign countries

Method used

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  • Organosilane crosslinked polyethylene wires and cables of 10 kV or below and preparation method thereof
  • Organosilane crosslinked polyethylene wires and cables of 10 kV or below and preparation method thereof
  • Organosilane crosslinked polyethylene wires and cables of 10 kV or below and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 10kV and below silane cross-linked polyethylene wire and cable, the wire and cable include insulating material and wires arranged in the insulating material, the insulating material is prepared from the following components by weight percentage:

[0046]

[0047]

[0048] Two-step method for preparing 10kV and below silane cross-linked polyethylene wire and cable. The preparation of insulating materials is mainly composed of two parts, one is the preparation of the catalyst masterbatch, and the other is the preparation of the finished product.

[0049] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:

[0050]

[0051] Stir the above materials (total 50 kg) in the mixer, first stir at low speed for 1 minute and then at high speed for 3 minutes, then pour them into the hopper of the extruder (extruder temperature: 140~180°C), after twin-screw extrusion After...

Embodiment 2

[0061] 10kV and below silane cross-linked polyethylene wire and cable, the wire and cable include insulating material and wires arranged in the insulating material, the insulating material is prepared from the following components by weight percentage:

[0062]

[0063] The insulating material mentioned above was prepared by the two-step method of Example 1.

Embodiment 3

[0065] 10kV and below silane cross-linked polyethylene wire and cable, the wire and cable include insulating material and wires arranged in the insulating material, the insulating material is prepared from the following components by weight percentage:

[0066]

[0067]

[0068] A method for preparing silane cross-linked polyethylene wires and cables of 10kV and below in one step. The preparation of insulating materials is mainly composed of two parts, one is the preparation of catalyst masterbatch, and the other is the preparation of finished products.

[0069] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:

[0070]

[0071] Stir the above materials (total 50 kg) in the mixer, first stir at low speed for 1 minute and then at high speed for 3 minutes, then pour them into the hopper of the extruder (extruder temperature: 140~180°C), after twin-screw extrusion A...

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PUM

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Abstract

The invention relates to the field of insulating materials, in particular to silane crosslinked polyethylene wires and cables of 10kV and below and a preparation method thereof. The insulating material of the wire and cable is prepared from the following components by weight percentage: LLDPE-7042, LLDPE-8320, LDPE, EVA, PP, silane coupling agent, crosslinking agent DCP, antioxidant 300, antioxidant 1010, antioxidant DLTP, antioxidant 1024, organic tin, fluorine rubber masterbatch. The present invention mainly replaces the current PVC material, and its insulation performance is better than that of PVC. However, PVC will release toxic and harmful gases when the wires are aging and catch fire, while the silane insulating material is non-toxic and harmless.

Description

technical field [0001] The invention relates to the field of insulating materials, in particular to silane crosslinked polyethylene wires and cables of 10kV and below and a preparation method thereof. Background technique [0002] The types of polyolefins used in the cable industry mainly include PE, PP, EVA and EEA, etc. Among them, the relatively large amount and long application history are mainly PE, which include HDPE, MDPE, LDPE, LLDPE and cross-linked XLPE. Their application Needless to say. The current application and development trends of polyolefins in the industry mainly focus on the following aspects: [0003] (1) Serialization and perfection of halogen-free and low-smoke materials [0004] Halogen-free, low-smoke, flame-retardant cable materials have been developing rapidly in recent years, and thermoplastic materials that meet the requirements of the IEC92-359 standard have been more and more widely used. With the requirements of cables for oil platforms, nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/12C08L27/12C08K5/54C08J3/22H01B3/44
CPCC08L23/0815C08J3/226C08J2323/08C08J2423/08C08L2201/08C08L2203/202C08L2205/025C08L2205/035C08L2207/066C08L2312/08H01B3/441
Inventor 赵勇俞丽琴李顺利蔡煜明潘姝君
Owner 浙江太湖远大新材料股份有限公司
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