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Bridge cable polyethylene protective primer and preparation method thereof

A technology for polyethylene and bridge cables, applied in the direction of coating, etc., can solve the problems that the silicone heat-resistant paint film cannot be firmly attached, easy to fall off, etc., and achieve the effect of not easy to foam, not easy to peel off, and protect polyethylene

Active Publication Date: 2013-09-25
GUANGZHOU CHENGXIN ROAD ENG EXAMINATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicone heat-resistant paint film still cannot be firmly attached to the polyethylene surface, and it is easy to fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: The polyethylene protective primer for bridge cables of the present invention is made by stirring the following raw materials according to the weight ratio: 140 parts of xylene, 10 parts of trimethylbenzene, 25 parts of chlorinated polypropylene, 16 parts of chlorinated polyethylene 1 part, 1 part of acrylic resin, 0.1 part of potassium perfluorooctane sulfonate, 0.25 part of polyether modified polysiloxane defoamer.

Embodiment 2

[0027] Embodiment two: the polyethylene protective primer for bridge cables of the present invention is made by stirring the following raw materials according to the weight ratio: 130 parts of xylene, 20 parts of trimethylbenzene, 28 parts of chlorinated polypropylene, 14 parts of chlorinated polyethylene, 1 part of acrylic resin, 0.2 part of N-ethyl perfluorooctane sulfonamide, and 0.3 part of polydimethylsiloxane defoamer.

[0028] The defoamer itself is a mixture, alternatively, the defoamer can be commercially available FY-2368 acid and alkali resistant defoamer or FY-3266 modified silicone defoamer.

[0029] A kind of preparation method that produces bridge cable of the present invention to use polyethylene protective primer is as follows:

[0030] (1) In the stirring and dissolving tank, add all the solvents xylene and trimethylbenzene in proportion, and stir;

[0031] (2) When the temperature rises to 45°C-50°C, add chlorinated polypropylene, chlorinated polyethylene a...

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Abstract

The present invention relates to a bridge cable polyethylene protective primer, which is prepared by mixing the following ingredients in parts by weight of 120 to 160 parts of xylene, 10 to 30 parts of trimethylbenzene, 10 to 30 parts of chlorinated polypropylene, 10 to 20 parts of chlorinated polyethylene, 0.5 to 2 parts of acrylic resin, 0.1 to 0.5 parts of fluorine-containing surfactant, and 0.1 to 0.5 parts of antifoaming agent. The preparation method of primer provided by the present invention realizes producing the bridge cable polyethylene protective primer fast. The primer provided by the invention acts as a binder between polyethylene and finishing paint fluorocarbon coatings, which makes finishing paint fluorocarbon coatings firmly stick to the surface of polyethylene, uneasy to blister or to peel off. The primer plays a role of protecting polyethylene.

Description

technical field [0001] The invention relates to a coating primer and a preparation method thereof, in particular to a polyethylene protective primer for bridge cables and a preparation method thereof, which are used for coating a topcoat fluorocarbon coating on the polyethylene surface. Background technique [0002] Polyethylene (English name Polyethylene, referred to as PE) is used as a sheath, and polyethylene itself needs protection. Polyethylene is often used as cable sheathing, especially for bridge cable sheathing. When polyethylene is subjected to alternating loads and is exposed to the natural environment, exposed to wind, sun, and rain, especially in areas with severe air pollution, areas with severe water pollution, coastal and marine environments, the polyethylene casing will be damaged, cracked, etc. phenomenon, eventually causing damage to the cable, seriously affecting the performance and service life of the protected cable. [0003] Polyethylene is a high mo...

Claims

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Application Information

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IPC IPC(8): C09D123/28C09D133/00
Inventor 余朝阳涂伟萍祝志荣
Owner GUANGZHOU CHENGXIN ROAD ENG EXAMINATION
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