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A kind of high bonding strength insulating paint for titanium alloy surface insulating protective layer

A technology combining strength and insulation protection, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of poor adhesion and achieve the effect of insulation protection

Active Publication Date: 2016-05-18
WUHAN RES INST OF MATERIALS PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high bonding strength insulating coating used for the insulating protective layer on the surface of titanium alloy, which overcomes the problem of poor adhesion of the existing insulating coating on the surface of titanium alloy, so that a high bonding strength insulating coating can be obtained on the surface of titanium alloy , effectively solve the problem of insulation protection on the surface of titanium alloy

Method used

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  • A kind of high bonding strength insulating paint for titanium alloy surface insulating protective layer

Examples

Experimental program
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Effect test

Embodiment 1

[0036] 1) Preparation of toughening modifier:

[0037] Mix 30 parts of nitrile rubber CTBN and 40 parts of epoxy resin E5140 parts by mass, heat to 80°C, and stir evenly; add 0.2 parts of triphenylphosphine to the evenly stirred mixture, heat to 120°C, react for 4 hours, and cool to obtain toughening modifier.

[0038] 2) Preparation of high bonding strength insulating coatings for the surface of titanium alloys:

[0039] In proportion, 60 parts of bisphenol A epoxy resin 6101 film-forming resin, 20 parts of the above-mentioned toughening modifier, 3 parts of epoxy group silane coupling agent KH-560 adhesion promoter, modified polysiloxane Defom5500 0.3 parts of defoamer, 0.5 parts of acrylate copolymer Levelol495 leveling agent, 3 parts of organic soil, 2 parts of fumed silica, 50 parts of iron oxide red pigment, the solvent is xylene and butanol in a volume ratio of 6:4 10 parts of the mixed mixture, mixed uniformly to make a high bonding strength insulating coating for th...

Embodiment 2

[0043] 1) Preparation of toughening modifier:

[0044] Mix 50 parts of nitrile rubber CTBN and 160 parts of epoxy resin E5160 parts by mass, heat to 80°C, and stir evenly; add 0.6 parts of triphenylphosphine to the evenly stirred mixture, heat to 120°C, react for 4 hours, cool to obtain toughness modifier.

[0045] 2) Preparation of high bonding strength insulating paint for titanium alloy surface:

[0046] 90 parts of bisphenol A epoxy resin 6101 film-forming resin in proportion, 40 parts of toughening modifier prepared as above, 8 parts of aminosilane coupling agent KH-550 adhesion promoter, modified polysiloxane Defom5500 0.8 parts of defoamer, 1 part of acrylate copolymer Levelol495 leveling agent, 8 parts of organic soil, 6 parts of fumed silica, 70 parts of iron oxide red pigment, the solvent is xylene and butanol in a volume of 6:4 The ratio is 40 parts of mixed solvent, and it is evenly mixed to prepare high bonding strength insulating coating for the surface of tita...

Embodiment 3

[0050] 1) Preparation of toughening modifier:

[0051] Mix 40 parts of nitrile rubber CTBN and 515 parts of epoxy resin E515 parts by mass, heat to 80°C, and stir evenly; add 0.5 part of triphenylphosphine to the evenly stirred mixture, heat to 120°C, react for 4 hours, cool to obtain toughness modifier.

[0052] 2) Preparation of high bonding strength insulating paint for titanium alloy surface:

[0053] In proportion, 70 parts of bisphenol A epoxy resin 6101 film-forming resin, 30 parts of the above-mentioned toughening modifier, 5 parts of aminosilane coupling agent KH-550 adhesion promoter, and modified polysiloxane Defom5500 defoamer 0.6 parts, 0.7 parts of acrylate copolymer Levelol495 leveling agent, 6 parts of organic soil, 4 parts of fumed silica, 60 parts of iron oxide red pigment, the solvent is a mixture of xylene and butanol in a volume ratio of 6:4 20 parts of solvent, mixed uniformly to prepare high bonding strength insulating coating for titanium alloy surface....

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Abstract

The invention provides a high bonding-strength insulating paint for an insulating protection layer of a titanium alloy surface, and belongs to the field of paint. The high bonding-strength insulating paint comprises two parts, namely a high bonding-strength insulating paint and a paint curing agent, wherein a polyamide curing agent is adopted as the paint curing agent; the high bonding-strength insulating paint comprises film-forming resin, a toughening modifier, an adhesive force accelerant, a de-foaming agent, a flatting agent, organic soil, gas-phase silicon dioxide, a general coloring filler and a general organic solvent, and a reaction product of a mixture of nitrile rubber and epoxy resin and triphenyl phosphine is adopted as the toughening modifier. The high bonding-strength insulating paint and the paint curing agent are mixed uniformly, and then applied on the titanium alloy surface in forms of spray coating, brush coating or roll coating, and drying and curing are performed for 7 days at normal temperature, so as to obtain a high bonding-strength insulating protection film on the titanium alloy surface, when the thickness of the film is 50mu m, the bonding strength of the film layer and the titanium alloy substrate is equal to or more than 13MPa and the insulating resistance is equal to or more than 10<11>ohms; the insulating protection of the titanium alloy can be realized effectively.

Description

technical field [0001] The invention relates to a high bonding strength insulating paint used for an insulating protective layer on the surface of a titanium alloy, which belongs to the field of paint, and in particular relates to a modified epoxy paint. Background technique [0002] Titanium alloy has the advantages of low density, high specific strength, non-magnetic, non-toxic, and strong corrosion resistance. It has been widely used in many fields such as aviation, aerospace, chemical industry, petroleum, light industry, metallurgy, and power generation. Development prospects of new structural materials. In actual use, due to considerations of performance, cost and other factors, titanium alloys are more or less used in contact with other dissimilar metals, but titanium alloys are high-potential metals. When used in contact with other low-potential metals, such as Aluminum, steel, etc., can easily cause galvanic corrosion of low-potential metals. Therefore, in many pra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/25C09D7/12
Inventor 汪洋刘秀生刘兰轩张迎平滕团友
Owner WUHAN RES INST OF MATERIALS PROTECTION
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