Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below black wires and cables through one step

A polyethylene insulation, wire and cable technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve problems such as large gaps, achieve high insulation resistance, reduce weight, and strong overload resistance

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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  • Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below black wires and cables through one step
  • Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below black wires and cables through one step
  • Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below black wires and cables through one step

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Silane cross-linked polyethylene insulating material for 10kV and below black wire and cable, the insulating material is prepared from the following components by weight percentage:

[0044]

[0045] The two-step method for preparing silane cross-linked polyethylene insulating material for 10kV and below black wire and cable mainly consists of two parts, one is the preparation of the catalyst masterbatch, and the other is the preparation of the finished product.

[0046] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:

[0047]

[0048] Stir the above materials in the mixer, first stir at low speed for 1 minute and then at high speed for 3 minutes, then release and pour into the hopper of the extruder (extruder temperature: 140-180°C), extrude through the twin-screw, and then pass through the cooling water tank for cooling , and then blown dry by a fan before...

Embodiment 2

[0059] Silane cross-linked polyethylene insulating material for 10kV and below black wire and cable, the insulating material is prepared from the following components by weight percentage:

[0060]

[0061]

[0062] The insulating material mentioned above was prepared by the two-step method of Example 1.

Embodiment 3

[0064] Silane cross-linked polyethylene insulating material for 10kV and below black wire and cable, the insulating material is prepared from the following components by weight percentage:

[0065]

[0066] A method for preparing silane cross-linked polyethylene insulating materials for 10kV and below black wires and cables in one step. It mainly consists of two parts, one is the preparation of catalyst masterbatch, and the other is the preparation of finished products.

[0067] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:

[0068]

[0069]

[0070] Stir the above materials in the mixer, first stir at low speed for 1 minute and then at high speed for 3 minutes, then release and pour into the hopper of the extruder (extruder temperature: 140-180°C), extrude through the twin-screw, and then pass through the cooling water tank for cooling , and then blown dry b...

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Abstract

The invention relates to the field of insulating materials, in particular to silane cross-linked polyethylene insulating materials for 10kV and below black wires and cables. The method for preparing silane cross-linked polyethylene insulating material for 10kV and below black wire and cable by one-step method is mainly composed of two parts, one is the preparation of catalyst masterbatch, and the other is the preparation of finished products. The insulating material is prepared from the following components by weight percentage: LLDPE-7042, LLDPE-8320, LDPE, EVA, PP, silane coupling agent, cross-linking agent DCP, antioxidant 300, antioxidant 1010, anti-oxidant Oxygen agent DLTP, antioxidant 1024, organotin, fluororubber masterbatch and black masterbatch. This material is mainly used for the insulation layer of cables to replace the current PVC material. Its insulation performance is better than that of PVC. PVC will emit toxic and harmful gases when the wires age and catch fire, while silane insulation materials are non-toxic and harmless.

Description

technical field [0001] The invention relates to the field of insulating materials, in particular to silane cross-linked polyethylene insulating materials for 10kV and below black wires and cables. 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, nuclea...

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
CPCC08L23/0815C08J3/226C08J2323/08C08J2423/08C08L2201/08C08L2203/202C08L2205/025C08L2205/035C08L2207/066C08L2310/00C08L2312/08H01B3/441
Inventor 赵勇俞丽琴李顺利郑颜潘姝君
Owner 浙江太湖远大新材料股份有限公司
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