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High-polymer strong fast-sealed adhesive tape

A high-molecular and strong technology, used in adhesives, film/flake adhesives, other chemical processes, etc., can solve the problems of time-consuming, labor-intensive, and high repair costs, and achieve convenient operation, low cost, and stickiness. good effect

Inactive Publication Date: 2009-12-23
SHANGHAI AMZ POLYMER MATERIALS TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is no ideal way to solve pipeline rupture and fracture in various industries. Most of them adopt to close the valve first, or even stop the equipment to cut off the flow in the pipeline. After the underground pipeline needs to be excavated, the outside of the pipeline should be cleaned According to the cracking, aging degree and material requirements of the pipeline, repair it, such as welding, or adding iron clamps, or directly replacing the new pipeline to solve the problem
This method is time-consuming, labor-intensive and very expensive to repair

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A high-molecular strong quick-sealing tape, which is composed of a high-strength fiber-woven tape coated with a layer of slurry polymerized with high-molecular materials, and is naturally cured under environmental conditions. The formula of described slurry is as shown in table 1:

[0041] Table 1

[0042] Composition

Weight (parts)

4,4-Diphenylmethane diisocyanate

40

Polyether diol

32

Emulsified silicone oil

15

Dibutyl fat

1

Benzoyl chloride

3

Bisdimethylaminoethyl ether

5

phosphoric acid

4

[0043] First, put the polyether diol into a three-necked reaction flask equipped with a thermometer, a stirrer, and a vacuum tube, then heat it, control the temperature at 70°C to 100°C, and keep stirring at a rate of 60 revolutions per minute, and In the case of vacuuming to a vacuum of -2 atmospheres, stir continuously for 2 to 3 hours before use; put 4,4-diphenylmeth...

Embodiment 2～4

[0049] The formula of modification example of the present invention is as follows table 2.

[0050] Table 2

[0051] composition

Example 2

Example 3

Example 4

Isocyanate

2,6-Toluene diisocyanate 43

2,4-Toluene diisocyanate 55

1,5-naphthalene diisocyanate 35

Polyol

Polyether Tetraol 35

Polyether hexaol 25

Polyether diol 45

Defoamer

Emulsified silicone oil 18

Methyl silicone oil 10

Emulsified silicone oil 9

stabilizer

Dibutyl fat 1.1

Dibutyl fat 2

Nitrobenzoyl chloride 3

catalyst

p-Toluenesulfonyl 1.2

Benzoyl chloride 2

Benzoyl chloride 3.2

Hardener

Bismorpholino diethyl ether 0.5

Dimethylaminoethanol 1

Bisdimethylaminoethyl ether 1.3

Auxiliary

Phosphoric acid 1.2

Phosphate 5

Oxyacid 3.5

[0052] The production process steps of embodiment 2~4 are the same as embodiment 1.

[0053] The main technical properties of the po...

Embodiment 5～6

[0055] The polymer strong quick-sealing tape was manufactured according to the same method as in Example 1, except that the formulation of the composition was changed as shown in Table 3 below.

[0056] table 3

[0057] composition

[0058] The main technical properties of the polymer strong quick-sealing tape prepared by the above method are similar to the technical performance data of Example 1. Wherein the curing time of embodiment 5 is about within 50 minutes, and the curing time of embodiment 6 is about within 40 minutes, which can be selected according to the required operation time of the project.

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Abstract

A polymer strong fast-sealed adhesive tape is prepared by coating sizing material polymerized by polymer material on high-strength fibrous linear band and naturally curing to obtain the final product. The sizing material consists of isocyanic acid ester and polyol, sizing characteristic is changed by changing proportion of isocyanic acid ester and polyol, tensile strength can reach to 41.2MPa, non-gap impact strength can reach to 25.0kJ / m2. It is fast and efficient. It can be used to maintain and fasten stand and various pipelines or bind components.

Description

technical field [0001] The present invention relates to a high molecular polymeric sealing tape, and more specifically to a polymeric high-strength sealing tape prepared by coating a layer of slurry polymerized with high-strength fibers on a wire tape woven with high-strength fibers. Sealing tape. Background technique [0002] The transportation of a large amount of liquid and gaseous substances is mostly realized by pipelines, such as the transportation of water, gas, natural gas, steam, oil, etc., is realized by a network composed of pipelines. Ships, mines and other industries need a large number of pipelines to maintain normal operation, and pipeline ruptures and fractures are inevitable during use, especially for pipelines used under high pressure or corrosion. more likely to happen. When there are cracks or ruptures in the pipelines of the pharmaceutical and chemical industries, the leaked substances are often poisonous and harmful; the substances leaked from the pip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09K3/10
Inventor 田言平尹靖
Owner SHANGHAI AMZ POLYMER MATERIALS TECH DEV CO LTD