Preparation method of self-adhesive flame retardant sealing tape

A sealing tape, self-adhesive technology, applied in adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve problems such as poor sealing, high price, and insufficient pressure-sensitive adhesiveness of sealing tapes

Inactive Publication Date: 2013-08-28
KUNSHAN HANBAO TAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the pipeline, the sealing problem of the air duct has gradually become prominent, that is, troublesome installation, low work efficiency, poor sealing, etc.
[0003] In the current technology, the materials of sealing tape are still in the majority of traditional materials such as asbestos, cardboard, rubber sheet, although people have developed some new sealing tape materials to replace traditional materials, these new sealing tape materials also reflect better sealing effect and The construction is more convenient, but their preparation process is more complicated, the selection of raw materials has many components, and the price is expensive, especially the pressure-sensitive viscosity of the sealing tape is not good enough, does not have flame retardancy, and is not suitable for large-scale promotion and use.

Method used

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  • Preparation method of self-adhesive flame retardant sealing tape

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Comparison scheme
Effect test

Embodiment 1

[0018] The specific preparation method is as follows:

[0019] a) Proportioning raw materials, the raw materials selected for the self-adhesive flame retardant sealing tape include: isocyanate, polyether N 220 , polyether N 330 , plasticizer, filler, flame retardant and catalyst; the mass ratio of each component is: isocyanate 36%, polyether N 220 32%, polyether N 330 8%, plasticizer 1%, filler 14%, flame retardant 8%, catalyst 1%; among them, the filler is Shuangfei material and talcum powder, the catalyst is dibutyltin dilaurate and stannous octoate, and the plasticizer is ortho Dioctyl phthalate; the flame retardant uses coated red phosphorus, which is made of organic and inorganic coatings on the surface of red phosphorus. This flame retardant is easily oxidized when heated. Phosphorus oxide, in the environment where water is generated when the polymer is burned, is quickly transformed into metaphosphoric acid, phosphoric acid and various polyphosphoric acids. The resul...

Embodiment 2

[0024] The specific preparation method is as follows:

[0025] a) Proportioning raw materials, the raw materials selected for the self-adhesive flame retardant sealing tape include: isocyanate, polyether N 220 , polyether N 330 , plasticizer, filler, flame retardant and catalyst; the mass ratio of each component is: isocyanate 20%, polyether N 220 40%, polyether N 330 10%, plasticizer 2%, filler 16%, flame retardant 10%, catalyst 2%; among them, the filler is shuangfei material and talcum powder, the catalyst is dibutyltin dilaurate and stannous octoate, and the plasticizer is ortho Dioctyl phthalate; the flame retardant uses coated red phosphorus, which is made of organic and inorganic coatings on the surface of red phosphorus. This flame retardant is easily oxidized when heated. Phosphorus oxide, in the environment where water is generated when the polymer is burned, is quickly transformed into metaphosphoric acid, phosphoric acid and various polyphosphoric acids. The res...

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Abstract

The invention provides a preparation method of a self-adhesive flame retardant sealing tape. The preparation method comprises the following steps of: (a) matching raw materials; (b) preparing a mixed material; (c) forming; and (d) carrying out aftertreatment. The preparation method of the self-adhesive flame retardant sealing tape, disclosed by the invention, is high-efficiency and reasonable in preparation processes and is simple and convenient to implement; and the prepared self-adhesive flame retardant sealing tape has excellent pressure-sensitive viscosity, excellent flame retardance and a good sealing effect and is convenient to use and low in price.

Description

technical field [0001] The invention relates to a sealing tape, in particular to a preparation method of a self-adhesive flame-retardant sealing tape, which belongs to the technical field of tapes. Background technique [0002] With the rapid development of my country's economy and the increasing comprehensive strength of the country, the construction of various civil and industrial large-scale projects is increasing, and the installation of various pipelines supporting the projects, such as fire-fighting air ducts and air-conditioning air ducts, is also increasing. more and more. The traditional sealing tape materials for air duct flange joints are mainly rubber, asbestos pads, asbestos ropes, cardboard, etc. During the use of the pipeline, the sealing problems of the air duct have gradually become prominent, that is, troublesome installation, low work efficiency, and poor sealing. [0003] In the current technology, the materials of sealing tape are still in the majority ...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J11/04C09J7/00
Inventor 徐兵
Owner KUNSHAN HANBAO TAPE TECH
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