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A non-sticky petrolatum anti-corrosion paste

An anti-corrosion paste, non-stick technology, used in anti-corrosion coatings, coatings, polyurea/polyurethane coatings, etc., can solve problems such as difficult to achieve protective effects, rust removal, difficult painting and maintenance, and complex bolt fastener structures. , to achieve good corrosion protection effect, easy construction and post-maintenance operation, and good adhesion.

Active Publication Date: 2017-10-10
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the structure of bolt fasteners is complex, rust removal and paint maintenance are difficult, and the commonly used coating anti-corrosion construction methods are difficult to achieve the ideal protective effect

Method used

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  • A non-sticky petrolatum anti-corrosion paste
  • A non-sticky petrolatum anti-corrosion paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Non-stick petrolatum anti-corrosion paste by weight percentage, polyether polyol EP-330N resin 38%, vaseline 25%, organic bentonite 3%, composite filler 6%, barium dinonyl naphthalene sulfonate 6%, chopped Fiber 1%, Lanolin 7%, Stearic Acid 9%, and HDI Trimer (N3390) 5%.

[0025] Determination of the general properties of the material obtained in the examples, see Table 1.

[0026] Table 1 Performance test results of non-stick petrolatum anti-corrosion paste

[0027]

[0028] Temperature-resistant fluidity test method:

[0029] This experiment is used to test whether the petrolatum anti-corrosion paste will flow under the test temperature conditions, so as to determine the maximum applicable temperature of this type of petrolatum anti-corrosion paste. Place the test piece coated with the sample in a constant temperature air bath at 50°C, and place it vertically for 24 hours, and observe whether the sample film flows to the reference line.

[0030] Pretreatment of ...

Embodiment 2

[0035] Non-stick petrolatum anti-corrosion paste by weight percentage, polyether polyol EP-330N resin 39%, vaseline 26%, organic bentonite 3%, composite filler 5%, barium dinonyl naphthalene sulfonate 6%, chopped Fiber 1%, Lanolin 6%, Stearic Acid 9%, and N3390HDI Trimer 5%.

[0036] The effects and characteristics are the same as those in Example 1. Test according to the standards in Table 1. Visual inspection is gray and viscous; the dropping point is greater than 80°C; at 50±2°C, the film does not flow after being placed vertically for 24 hours, and has good temperature resistance and fluidity; no rust in the water-paste displacement test; salt water immersion test, neutral salt The results of fog test (1000h) and ultraviolet aging test (300h) are good, there is no change in the sample, no rust, and good aging resistance.

[0037] Using the non-sticky petrolatum anticorrosion paste of the above composition, the self-curing elastomeric organic coating is formed, the coatin...

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Abstract

The present invention provides a non-sticky petrolatum corrosion resistant paste, specifically a non-sticky petrolatum corrosion resistant paste for corrosion protection of tower bolt fasteners in electrical network power transmission line and the gaps between steel-frame structure and bolt fasteners. The non-sticky petrolatum corrosion resistant paste comprises by weight: 36%-42% of polyether polyol EP-330N resin, 24%-29% of vaseline, 3%-5% of organic bentonite, 5%-8% of a composite filler, 6%-8% of dinonyl barium naphthalene sulfonate, 0.1%-1% of chopped fiber, 6%-8% of lanolin, 8%-12% of stearic acid and 5%-7% of an HDI trimer (N3390). The non-sticky petrolatum corrosion resistant paste coats on the surface of a protected objective to form a flexible organic coating, and the coating layer is dense and has physical isolation protective effect; at the same time, non-sticky petrolatum corrosion resistant paste plays a good role in corrosion protection of the metals to be protected. The non-sticky petrolatum corrosion resistant paste effectively protects the bolt fasteners, and facilitates construction and post-maintenance and operation.

Description

technical field [0001] The invention relates to a petrolatum anti-corrosion paste, in particular to a non-sticky petrolatum anti-corrosion paste used for anti-corrosion of power grid transmission line tower bolt fasteners and gaps between steel frame structures and bolt fasteners. Background technique [0002] At present, most of the transmission line poles and towers in the domestic power grid adopt the protection measures of hot-dip galvanizing and anti-corrosion coating. The cathodic protection effect of the hot-dip galvanizing layer is relatively good in areas with good environmental conditions. However, transmission line towers in heavy industrial pollution areas are located in areas with severe acid rain corrosion such as sulfur dioxide, and most of them have been in operation for a certain period of time. There are gaps between the fasteners, which lead to the penetration and retention of acidic aqueous solution. In the acidic environment, the corrosion rate of the ga...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D191/00C09D5/08C09D7/12
Inventor 倪晓雪鲁莽邱大健涂彩琪丁路遥肖祥定孟毅赵定义
Owner STATE GRID CORP OF CHINA
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