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Anticorrosive pressure sensitive adhesive tape and preparation method thereof

A technology of pressure-sensitive tape and pressure-sensitive adhesive, which is applied in pipeline anti-corrosion/rust protection, adhesives, damage protection, etc. It can solve the problems of poor self-adhesiveness, low bonding strength, poor sealing and durability of pressure-sensitive tape , to achieve the effect of good self-adhesiveness, good flexibility at low temperature and convenient construction

Inactive Publication Date: 2012-02-29
JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The application of pressure-sensitive adhesives in pipeline anticorrosion has been reported in China, but the self-adhesiveness of ordinary pressure-sensitive adhesive tapes is poor, the bonding strength is low, and the sealing and durability are not good.

Method used

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  • Anticorrosive pressure sensitive adhesive tape and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] A pressure-sensitive adhesive tape for anti-corrosion, which is composed of a backing material and a pressure-sensitive adhesive material distributed on the polyethylene backing material. The backing material is a polyethylene backing material; the pressure-sensitive adhesive material is mainly made of butyl 25 parts of rubber, 20 parts of terpene resin, 5 parts of polyisobutylene with a weight average molecular weight of 800-1100, 10 parts of naphthenic oil, 20 parts of talc, 20 parts of mica powder and 0.5 parts of antioxidant 1010, by weight Count.

[0033] The preparation method of the pressure-sensitive adhesive tape for anticorrosion of the present invention is:

[0034] First add the butyl rubber to the kneader, and then add the terpene resin, polyisobutylene with a weight average molecular weight of 800 to 1100, naphthenic oil, talc, mica powder and antioxidant 1010 to the kneader , Kneading at a temperature of 135~150℃ for 40~60min to prepare pressure sensitive adh...

Embodiment 2～6

[0037] A pressure-sensitive adhesive tape for compression corrosion, wherein the raw material components and contents of the pressure-sensitive adhesive material are shown in Table 1, and the kneading temperature and kneading time of the pressure-sensitive adhesive material are shown in Table 2, and the specific preparation method is the same as in Example 1.

[0038] Table 1: The components and dosage tables in Examples 2 to 6 Unit: kg

[0039]

[0040] Table 2 Kneading temperature and kneading time of the pressure-sensitive adhesive materials in Examples 2-6

[0041] Example23456 Kneading temperature (℃)135140145150160 Kneading time (minutes)3050556070

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Abstract

The invention discloses an anticorrosive pressure sensitive adhesive tape and a preparation method thereof. The anticorrosive pressure sensitive adhesive tape consists of a back material and pressure sensitive adhesive coated on the back material, wherein the pressure sensitive adhesive consists of the following components in part by weight: 15 to 40 parts of elastomer, 15 to 35 parts of tackifier, 5 to 15 parts of softening agent, 20 to 50 parts of filler, and 0.2 to 0.8 part of anti-aging agent. The preparation method comprises the following steps of: adding the elastomer, the tackifier, the softening agent, the filler and the anti-aging agent into a kneading machine, kneading for 30 to 70 minutes at the temperature of between 130 and 160 DEG C, and obtaining a self-adhesive material; adding the self-adhesive material into a double-screw extruder, performing melt extrusion, and obtaining the pressure sensitive adhesive; and coating the pressure sensitive adhesive on the back material, and thus obtaining the anticorrosive pressure sensitive adhesive tape. The anticorrosive pressure sensitive adhesive tape has good self-adhesive property, high adhesive strength and good sealing performance and durability.

Description

Technical field [0001] The present invention involves a tape and its preparation method, especially for an anti -corrosion -sensitive tape and its preparation method. Background technique [0002] As a transmission carrier of the medium, one of the important facilities of ground engineering.It is a link that connects upstream resources and downstream users. Due to the long -term burial of the pipeline, over time, the impact of the external soil characteristics and terrain settlement, the pipeline will be corrosive, perforated, and leaked, which will bring huge huge countries to the country.Economic losses can also cause serious pollution to the environment.With the country's investment and construction of large and medium -sized long -term transmission pipelines and residents' living urban pipeline networks, the anti -corrosion measures of steel pipelines and the auxiliary facilities have also become an important research field.Anti -corrosion -sensitive tape is an important part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J153/02C09J123/22F16L58/00
Inventor 张志强杨军伟
Owner JIANGSU DASHENG HEAT SHRINKABLE MATERIALS
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