Hot melt adhesive used for pipeline anticorrosion, preparation method thereof, and thermal shrinkable sleeve

A technology for hot melt adhesives and pipes, applied in adhesives, aldehyde/ketone condensation polymer adhesives, adhesive types, etc., can solve problems such as poor low temperature performance, poor high and low temperature application range, etc., to reduce difficulty and prepare The effect is simple and easy to promote

Inactive Publication Date: 2017-03-22
NITTO QINGDAO TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The first object of the present invention is to provide a hot melt adhesive for pipeline anticorrosion. The hot melt adhesive solves the problems of poor high and low temperature application range and poor low temperature performance, and shows better low temperature resistance and high temperature adhesion. , sealing performance and anti-corrosion effect
[0011] The third purpose of the present invention is to provide a heat-shrinkable sleeve. The heat-shrinkable sleeve solves the problems of poor high and low temperature application range and poor low-temperature performance, and shows better low-temperature resistance, high-temperature adhesion, sealing performance and Antiseptic effect

Method used

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  • Hot melt adhesive used for pipeline anticorrosion, preparation method thereof, and thermal shrinkable sleeve
  • Hot melt adhesive used for pipeline anticorrosion, preparation method thereof, and thermal shrinkable sleeve
  • Hot melt adhesive used for pipeline anticorrosion, preparation method thereof, and thermal shrinkable sleeve

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Experimental program
Comparison scheme
Effect test

Embodiment 4 to 6

[0079] The formula of embodiment 4 to 6 is as table 3, and preparation method is identical, is:

[0080] According to the formula, take the raw materials of asphalt horseshoe grease, mix with thermoplastic resin, tackifying resin, antioxidant, and filler at 140°C for about 8 minutes, and the stirring speed is 60rpm; molding is ready.

[0081] The performance results are shown in Table 4.

[0082] table 3

[0083] Parts by weight of each ingredient Example 4 Example 5 Example 6 S 60 55 55 PE 10 10 10 EVA(I) 25 20 20 Phenolic resin (I) 5 10 0 Phenolic resin (II) 0 0 10 carbon black 0 5 0 calcium carbonate 0 0 5

[0084] Table 4

[0085]

[0086]

Embodiment 7-9

[0088] The formula of embodiment 7 to 9 is as table 5, and preparation method is identical, is:

[0089] According to the formula, take the raw materials of asphalt horseshoe grease, mix with thermoplastic resin, tackifying resin, antioxidant, and filler at 140°C for about 8 minutes, and the stirring speed is 60rpm; molding is ready. Performance (test method is the same as embodiment 4) such as table 6.

[0090] table 5

[0091] Parts by weight of each ingredient Example 7 Example 8 Example 9 S 60 60 60 PE 5 5 5 EVA(I) 15 10 10 Phenolic resin (I) 5 5 5 carbon black 10 15 15

[0092] Table 6

[0093]

Embodiment 10

[0095] According to weight percentage, take S glue 50%, PE 10%, EVA (II) 30%, phenolic resin (I) 10%, knead at 140°C for about 8 minutes, stirring speed 60rpm; shape it.

[0096] Among them, the S glue is self-made, and the formula is: by weight percentage, 50% of recycled butyl rubber; 5% of polyisobutylene PB13005; 30% of methyl coagulated asphalt; 15% of rosin.

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Abstract

The invention relates to a hot melt adhesive used for pipeline anticorrosion, a preparation method thereof, and a thermal shrinkable sleeve. The hot melt adhesive used for pipeline anticorrosion is mainly formed through mixing, by weight, 30-80% of asphalt mastic, 15-50% of thermoplastic resin, 5-40% of tackifying resin, 0-5.0% of an antioxidant and 0-20% of a filler. The problems of poor high-and-low-temperature application range and poor low-temperature performances are solved, and the hot melt adhesive has good low temperature resistance, good high temperature adhesion, good seal performance and good anticorrosion effect.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a hot melt adhesive for pipeline anticorrosion, a preparation method thereof, and a heat shrinkable sleeve. Background technique [0002] As a medium transmission carrier and an important facility of ground engineering, buried pipelines are the link connecting upstream and downstream customers and play an important role in economic development. However, with the passage of time, external soil characteristics and topographical settlement and other factors, pipelines buried underground for a long time may be damaged by corrosion, perforation, leakage, etc., which may cause huge economic losses and irreparable environmental damage. Therefore, the safety of large and medium-sized long-distance pipelines and urban pipeline networks used by residents is increasingly concerned by the government and scientific researchers. Sealing and anti-corrosion high-performance materials f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J195/00C09J123/22C09J193/04C09J161/06C09J11/08C09J11/06C09J11/04
CPCC09J123/0853C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J123/22C09J195/00
Inventor 杨旭东金玲王帅郭丽云
Owner NITTO QINGDAO TECH RES INST CO LTD
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