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Self-fusion anti-corrosion adhesive tape and preparation method of self-fusion adhesive thereof

An adhesive layer and tape technology, applied in the direction of adhesive, film/sheet adhesive, etc., to achieve the effect of convenient construction, good chemical resistance, safe and environmentally friendly operation

Inactive Publication Date: 2012-08-15
江苏宝力泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the defects in the above-mentioned prior art, the purpose of the present invention is to propose a self-fusion anti-corrosion adhesive tape and a preparation method of its self-fusion adhesive, so that the tape has self-fusion properties, pressure sensitivity, and bonding strength. Large size, strong sealing, excellent low temperature resistance, etc., and solve the problems of environmental protection and construction convenience

Method used

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  • Self-fusion anti-corrosion adhesive tape and preparation method of self-fusion adhesive thereof
  • Self-fusion anti-corrosion adhesive tape and preparation method of self-fusion adhesive thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 : Proportion by mass fraction (%) butyl rubber (1751) 14 parts, polyethylene (7042) 5 parts, EPDM rubber (4045) 10 parts, low molecular weight polyisobutylene (PB1400) 18 parts, naphthenic oil 4.5 parts, 25 parts of calcium carbonate, 0.5 parts of antioxidant (1010) and 23 parts of C5 petroleum resin.

[0023] Accurately weigh the raw materials prepared from the fusion adhesive according to the proportions of the above components. Add butyl rubber and EPDM rubber to a kneader and crush them, add polyethylene, knead and melt at 145±10°C; add low molecular weight polyisobutylene and naphthenic oil, and knead for 0.5 hours; then add calcium carbonate, anti Oxygen and C 5 Petroleum resin, kneaded for 1 hour. The prepared glue is made into a tape through a glue applicator, and cut according to requirements.

[0024] The measured peel strength of the tape at 23±2°C is 20.5N / cm, the peeling state is cohesive failure, the shear strength at 23±2°C is 0.056MPa, and...

Embodiment 2

[0025] Example 2 : According to mass fraction (%), 22 parts of butyl rubber (1751), 10 parts of polyethylene (7042), 7.5 parts of low molecular weight polyisobutylene (PB1400), 30 parts of calcium carbonate, 8 parts of carbon black, antioxidant ( 1010) 0.5 parts and C5 petroleum resin 22 parts.

[0026] Accurately weigh the raw materials prepared from the fusion adhesive according to the proportions of the above components. Add butyl rubber to a kneader and crush it, add polyethylene, knead and melt at 145±10°C; add low molecular weight polyisobutylene and knead for 0.5 hours; then add calcium carbonate, carbon black, antioxidant and C 5 Petroleum resin, kneaded for 1 hour. The prepared glue is made into a tape through a glue applicator, and cut according to requirements.

[0027] The measured peel strength of the tape at 23±2°C is 42.6N / cm, the peeling state is cohesive failure, the shear strength at 23±2°C is 0.076MPa, and the peel strength at 50±2°C is 4.7N / cm, cohesive...

Embodiment 3

[0028] Example 3 : According to mass fraction (%), 45 parts of butyl rubber (1751), 8.5 parts of polyethylene (7042), 13 parts of naphthenic oil, 16 parts of calcium carbonate, 0.5 parts of antioxidant (1010) and terpene resin ( TR-100) 17 parts.

[0029] Accurately weigh the raw materials prepared from the fusion adhesive according to the proportions of the above components. Add butyl rubber to a kneader and crush it, add polyethylene, knead and melt at 145±10°C; add naphthenic oil and knead for 0.5 hours; then add calcium carbonate, antioxidant and terpene resin, knead for 1 hour . The prepared glue is made into a tape through a glue applicator, and cut according to requirements.

[0030] The measured peel strength of the tape at 23±2°C is 49.0N / cm, the peeling state is cohesive failure, the shear strength at 23±2°C is 0.088MPa, and the peel strength at 50±2°C is 6.7N / cm, cohesive failure, shear The shear strength is 0.059MPa.

[0031] It can be seen from the above des...

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Abstract

The invention discloses a self-fusion anti-corrosion adhesive tape and a preparation method of self-fusion adhesive thereof. The adhesive tape comprises a self-fusion adhesive layer and a back material layer overlapped, wherein the back material layer is in a dual-layer structure formed by co-extruding an elastomer and polyethylene; one surface of the self-fusion adhesive layer is bonded with the polyethylene of the back material layer; and the self-fusion adhesive layer is mixed colloid consisting of butyl rubber, polyethylene, inorganic reinforcing powder, tackifying resin, plasticizer and antioxidant according to a proportion. In the application of the technical scheme provided by the invention, the adhesive bonding of an adherend can be finished under the contact pressure based on the pressure-sensitive feature of the self-fusion adhesive; the construction is convenient, the requirement on the surface treatment of a pipe body is low, and the operation is safe and environmentally-friendly; and moreover, the self-fusion anti-corrosion adhesive tape also has the characteristics of good anti-corrosion effect, puncture fusion, good chemical resistance, wide application range and the like, and is not restricted by the pipe diameter and pipe shape.

Description

Technical field [0001] The present invention involves a self -fusion polymer anticorrosive tape for oil, gas buried and overhead steel pipelines and its supplementary ports and bending pipes, and three -links.Preparation method. Background technique [0002] The traditional oil, gas and steel pipeline anticorrosion mainly uses oil asphalt plus glass cloth wrapped, media asphalt plus glass cloth wound, epoxy media asphalt, non -caramel magnetic paint, etc. These anticorrosive materials generally have poor anticorrosive effects and poor low temperature resistance resistance., Environmental pollution, toxic solvents (toluene, etc.) affect health.The current popular steel pipe anticorrosion is a 3PE heat belt.The material pipeline has strong antiseptic sealing and high mechanical strength, but in the actual application process, unstable bonding quality is often used due to artificial baking differences, and this anticorrosive method is limited by itself for new pipelines and cannot b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J123/22C09J123/06
Inventor 范小银刘长海
Owner 江苏宝力泰新材料科技有限公司
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