Soft flame-retardant halogen-free low-smoke power line insulating material and preparation method thereof

A technology for insulating materials and power cords, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve problems such as large gaps, and achieve the effects of high insulation resistance, weight reduction, 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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  • Soft flame-retardant halogen-free low-smoke power line insulating material and preparation method thereof
  • Soft flame-retardant halogen-free low-smoke power line insulating material and preparation method thereof
  • Soft flame-retardant halogen-free low-smoke power line insulating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The flexible flame-retardant, halogen-free and low-smoke power cord insulation material is prepared from the following components by weight percentage:

[0045]

[0046] The two-step method for preparing a flexible flame-retardant, halogen-free, low-smoke power line insulation material mainly consists of two parts, one is the preparation of the catalyst masterbatch, and the other is the preparation of the finished product.

[0047] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:

[0048]

[0049] 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 cutting into pellets. The pellets are d...

Embodiment 2

[0060] The flexible flame-retardant, halogen-free and low-smoke power cord insulation material is prepared from the following components by weight percentage:

[0061]

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

Embodiment 3

[0064] The flexible flame-retardant, halogen-free and low-smoke power cord insulation material is prepared from the following components by weight percentage:

[0065]

[0066]

[0067] The invention discloses a method for preparing a flexible flame-retardant, halogen-free and low-smoke power cord insulation material 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.

[0068] 1. Preparation of catalyst masterbatch: The catalyst masterbatch accounts for 5% of the total material composition, and the specific formula is as follows:

[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 by a fan before c...

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PUM

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Abstract

The invention relates to the field of insulating materials, in particular to a flexible flame-retardant, halogen-free, low-smoke power line insulating material and a preparation method thereof. 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, magnesium hydroxide or aluminum hydroxide, halogen-free intumescent flame retardant. 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 a flexible flame-retardant, halogen-free, low-smoke power line insulating material 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 o...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L23/12C08L27/12C08K5/54C08K3/22C08J3/22H01B3/44
CPCC08L23/0815C08J3/226C08J2323/08C08J2423/08C08L2201/02C08L2201/08C08L2201/22C08L2203/202C08L2205/025C08L2205/035C08L2207/066C08L2312/08H01B3/441
Inventor 赵勇蔡煜明李顺利俞丽琴郑颜
Owner 浙江太湖远大新材料股份有限公司
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