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Insulating material for black overhead insulated cable and preparation method of insulating material

An overhead insulated cable, insulating material technology, applied in organic insulators, plastic/resin/wax insulators, etc., can solve problems such as large gaps, achieve high insulation resistance, reduce cold flow, enhance chemical resistance and solvent resistance sexual effect

Inactive Publication Date: 2016-12-07
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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  • Insulating material for black overhead insulated cable and preparation method of insulating material
  • Insulating material for black overhead insulated cable and preparation method of insulating material
  • Insulating material for black overhead insulated cable and preparation method of insulating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Insulating material for black overhead insulated cables, the insulating material is prepared from the following components by weight percentage:

[0041]

[0042] The two-step method for preparing insulating materials for black overhead insulated cables mainly consists of two parts, one is the preparation of catalyst masterbatch, and the other is the preparation of finished products.

[0043] 1) Preparation of catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, antioxidant DLTP, fluororubber masterbatch, black masterbatch;

[0044] 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. After being blown dry by a fan, the pellets are cut into pellets. The pellets are dried in a drying tower at 80°C for more than 2 hours, and then packed in vacuum aluminum-plastic bags for temporary storage.

[0045] 2) Finished product prepara...

Embodiment 2

[0055] Insulating material for black overhead insulated cables, the insulating material is prepared from the following components by weight percentage:

[0056]

[0057] The insulating material mentioned above was prepared by the two-step method of Example 1.

Embodiment 3

[0059] Insulating material for black overhead insulated cables, the insulating material is prepared from the following components by weight percentage:

[0060]

[0061]

[0062] The invention discloses a method for preparing insulating material for black overhead insulated 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.

[0063] 1) Preparation of catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, antioxidant DLTP, fluororubber masterbatch, black masterbatch;

[0064] 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. After being blown dry by a fan, the pellets are cut into pellets. The pellets are dried in a drying tower at 80°C for more than 2 hours, and then packed in vacuum aluminum-plastic bags for temporary stora...

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Abstract

The invention relates to the field of insulating materials, in particular to an insulating material for a black overhead insulated cable and a preparation method of the insulating material. The insulating material for the black overhead insulated cable is prepared from the following components in percentage by weight: LLDPE-7020, LLDPE-8320, LDPE, a silane coupling agent, a cross-linking agent DCP, an antioxidant 300, an antioxidant 1010, an antioxidant DLTP, organic tin, fluorine rubber masterbatches and black masterbatches. The insulating material provided by the invention is used for an overhead electric wire for transmitting electricity, and has the insulating property better than that of PVC, while the PVC releases toxic and harmful gases when the electric wire causes a fire by aging and the like, and the silane insulating material is nontoxic and harmless.

Description

technical field [0001] The invention relates to the field of insulating materials, in particular to an insulating material for black aerial insulated cables 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, nuclear powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L27/12C08K5/14C08K5/57C08K5/54H01B3/44C08J3/22
CPCC08L23/0815C08J3/226C08J2323/08C08J2423/06C08L2201/08C08L2203/202C08L2205/025C08L2205/035H01B3/441C08L23/06C08L27/12C08K5/14C08K5/57C08K5/54
Inventor 赵勇李顺利俞丽琴蔡煜明郑颜
Owner 浙江太湖远大新材料股份有限公司
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