Corrosion-resistant self-adhesive low-smoke halogen-free fireproof wrapping tape material and preparation method thereof

A self-adhesive and corrosion-resistant technology, which is applied in the field of corrosion-resistant self-adhesive low-smoke and halogen-free fireproof wrapping tape materials and its preparation, can solve the problems of stringent environmental protection requirements, failure to meet, and pollute the environment, and achieve improved fire and flame retardancy High performance, barrier heat transfer, low calorific value of combustion

Pending Publication Date: 2020-04-21
CHANGLAN CABLE ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The fireproof wrapping tape materials used on the market are made of halogenated polyolefin polymers as the base material and flame retardants and additives, which will produce a lot of smoke while meeting the requirements of the corresponding flame retardant grades stipulated by the national or industry standards. It seriously pollutes the environment, and the combustion products generally contain highly toxic halide gas, which is harmful to the human body and cannot meet the increasingly stringent environmental protection requirements

Method used

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  • Corrosion-resistant self-adhesive low-smoke halogen-free fireproof wrapping tape material and preparation method thereof
  • Corrosion-resistant self-adhesive low-smoke halogen-free fireproof wrapping tape material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] (1) 100 parts of methyl vinyl silicone rubber raw rubber (molecular weight 650,000, vinyl content 1.5%), 25 parts of fumed white carbon black (particle size 12nm, purity 95% or more, BET specific surface area is 200m 2 / g), 3 parts of organically modified montmorillonite (1250 mesh), 3 parts of hydroxy silicone oil, pre-mixed with an internal mixer, and discharged below 70℃;

[0024] (2) Put the rubber mixture of step (1) into the kneader, add 40 parts of ammonium polyphosphate and 10 parts of pentaerythritol that have been pre-baked, close the top of the kneader, turn on the kneader and mix for 15 minutes. After the main machine completely stops rotating, turn on the kneader for reverse mixing for 2 minutes, then forward for 15 minutes, and then reverse for 2 minutes, stop the main machine; open the top cover and let it cool for 10 minutes;

[0025] (3) Add 3 parts of n-butyl borate and continue mixing for 15-20 minutes, transfer the evenly mixed materials to the turnover bo...

Embodiment 2

[0029] (1) 100 parts of methyl vinyl silicone rubber raw rubber (molecular weight 650,000, vinyl content 1.5%), 40 parts of fumed white carbon black (particle size 12nm, purity 95% or more, BET specific surface area is 200m 2 / g), 4.5 parts of organically modified montmorillonite (1250 mesh), 4 parts of hydroxy silicone oil, mixed evenly with an internal mixer in advance, and discharged under 70℃;

[0030] (2) Put the rubber mixture of step (1) into the kneader, add 45 parts of ammonium polyphosphate and 11 parts of pentaerythritol that have been pre-baked, close the top of the kneader, turn on the kneader and mix for 15 minutes. After the main machine completely stops rotating, turn on the kneader for reverse mixing for 2 minutes, then forward for 15 minutes, and then reverse for 2 minutes, stop the main machine; open the top cover and let it cool for 10 minutes;

[0031] (3) Add 5 parts of n-butyl borate and continue mixing for 15-20 minutes, transfer the evenly mixed materials to...

Embodiment 3

[0035] Compared with Example 1, the difference is that the nitrogen-phosphorus flame retardant is the same part by weight of melamine polyphosphate.

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Abstract

The invention discloses a corrosion-resistant self-adhesive low-smoke halogen-free fireproof wrapping tape material and a preparation method thereof. The corrosion-resistant self-adhesive low-smoke halogen-free fireproof wrapping tape material comprises the following components in parts by weight: 100 parts of a silicone rubber, 20-50 parts of white carbon black, 2-6 parts of silicone oil, 40-60 parts of a nitrogen-phosphorus flame retardant, 2-5 parts of a tackifier, 3-5 parts of organic modified montmorillonite and 0.5-5 part of a vulcanizing agent. According to the invention, by matching the components, the fireproof wrapping tape material has excellent corrosion resistance, aging resistance, high-temperature resistance, low-temperature resistance, strong self-adhesion, excellent mechanical property, electrical insulation property, flame retardant property and other performances, is good in processability, can be molded by using common tape extrusion equipment, reduces the investment cost, simplifies the production process of the fireproof wrapping tape, and has remarkable application value.

Description

Technical field [0001] The invention relates to the technical field of the field of flame-retardant polymer materials, in particular to a corrosion-resistant self-adhesive low-smoke halogen-free fireproof wrapping tape material and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy and society, the performance of power transmission has become more and more important, and its application range and number of uses have also increased year by year. The safety and environmental protection requirements of the entire product system of cable accessories are also increasing year by year. At present, products such as the middle joints or stress cones of the cable accessories do not fully use materials with high flame-retardant properties. Therefore, additional flame-retardant tape materials need to be wound and used for flame-retardant and fire-resistant protection to effectively ensure the safety of power transmission lines. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08K13/06C08K9/04C08K3/34C08K3/36C08K5/14C08K3/32C08K5/053C08K5/55C08K5/3492
CPCC08K2003/323C08L83/04C08L2201/02C08L2201/08C08L2201/22C08L2205/025C08K13/06C08K3/36C08K3/32C08K5/053C08K5/14C08K5/55C08K9/04C08K3/346C08K5/34928
Inventor 贺志文单思宇吴瑞清
Owner CHANGLAN CABLE ACCESSORIES
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