CN104927645A - Composite water-soluble resin coating with high anti-corrosion property for exhaust pipe of forklift engine and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of coating for exhaust pipe of engine, in particular to a composite water-soluble resin coating with a high anti-corrosion property for an exhaust pipe of forklift engine and a preparation method thereof. The composite water-soluble resin coating with high anti-corrosion property for the exhaust pipe of the forklift engine is a water-soluble and environmental-protection coating and is free from volatile organic solvent and pollution to the environment. Nano-sepiolite improves the film building adsorbability of the coating, the heat stability of silicon resin is improved, graphene oxide effectively prevent the exhaust pipe from generating corrosion, the protective effect of the coating is improved further, and added sulfonated asphalt powder can effectively improve the film building ability of the coating and prevent the coating from spalling in high temperature. When the coating is applied to the exhaust pipe of the engine, good protective property is presented, the coating does not spall or fracture after being used for a long time under the high-temperature condition, and the oxidized corrosion condition of the exhaust pipe is relieved effectively.

Description

A kind of forklift engine vapor pipe composite water soluble silicone resin coating of high non-corrosibility and preparation method thereof

Technical field

The present invention relates to the effective technical field of coatings of engine exhaust, be specifically related to composite water soluble silicone resin coating of the high non-corrosibility of a kind of forklift engine vapor pipe and preparation method thereof.

Background technology

Due to the feature of forklift engine vapor pipe environment for use and working order own, the protection of vapor pipe is made to seem particularly important, vapor pipe means of defence is mainly high temperature resistant at its surface spraying, the paint of the effect such as antirust, the paint mainly silicone based high temperature resistant paint that current application is more, but organosilicon paint easily decomposes under the high temperature conditions, bubble, the problem such as come off, thus cause pipeline to lose protective layer, there is oxidation corrosion, directly affect use properties, therefore, be badly in need of carrying out improvement in performance to traditional organosilicon heat-resistant paint, vapor pipe Working environment is more met to make it, to reach good protection effect.

Summary of the invention

The object of the invention is to, composite water soluble silicone resin coating of the high non-corrosibility of a kind of forklift engine vapor pipe and preparation method thereof is provided, to obtain a kind of environmental protection, heat-resisting, durable new coating, to achieve these goals, the technical solution used in the present invention is as follows:

A kind of forklift engine vapor pipe composite water soluble silicone resin coating of high non-corrosibility, it is characterized in that, this coating is made up of the raw material of following weight part: asbestos wool 4-6, nanometer sepiolite 5-6, graphene oxide 1-2, nano-zinc borate 0.2-0.3, solid content are the waterborne organic silicon resin emulsion 40-50 of 45-50%, sulfonated gilsonite powder 5-6, sodium lauryl sulphate 0.8-1, solid content are 20-30% nano aluminum colloidal sol 12-15, defoamer 0.2-0.3, water 25-35.

Described a kind of forklift engine vapor pipe composite water soluble silicone resin coating of high non-corrosibility and preparation method thereof, it is characterized in that, described preparation method is:

(1) first that sodium lauryl sulphate is soluble in water, sulfonated gilsonite powder, asbestos wool, nanometer sepiolite, graphene oxide are dropped in solution subsequently, be uniformly mixed by slurry grinding distribution 40-50min after 1.5-1.8h, gained material is for subsequent use;

(2) mixed with other leftover materials by the material of step (1), drop into shredder and continue grinding distribution 2-3h after stirring, grinding terminates rear room temperature and leaves standstill, and packs subsequently, gets product.

Compared with prior art, composite coating prepared by the present invention possesses following advantage: be Environmental Protective Water-paint, not containing volatile organic solvent, free from environmental pollution, the asbestos wool added makes resin emulsion have good heat resistanceheat resistant, heat-insulating capability, nanometer sepiolite enhances the film forming adsorptivity of coating, improve the thermostability of silicone resin, graphene oxide then effectively prevents vapor pipe to corrode, the protection effect of further lifting coating, the sulfonated gilsonite powder added effectively can improve the film forming ability of coating, prevents coating high-temp from peeling off.When this application of paints is in the exhaust pipe of engine, show good barrier propterty, life-time service does not peel off cracking under the high temperature conditions, effectively alleviates the oxidation corrosion situation of vapor pipe.

Embodiment

Embodiment

The present embodiment coating is made up of following raw material: nano aluminum colloidal sol 12, defoamer 0.2, water 30 that the waterborne organic silicon resin emulsion 45 that asbestos wool 5, nanometer sepiolite 5, graphene oxide 1, nano-zinc borate 0.2, solid content are 45%, sulfonated gilsonite powder 5, sodium lauryl sulphate 0.8, solid content are 25%.

Described a kind of forklift engine vapor pipe by the preparation method of the composite water soluble silicone resin coating of high non-corrosibility is:

(1) first that sodium lauryl sulphate is soluble in water, sulfonated gilsonite powder, asbestos wool, nanometer sepiolite, graphene oxide are dropped in solution subsequently, be uniformly mixed by slurry grinding distribution 40min after 1.5h, gained material is for subsequent use;

(2) mixed with other leftover materials by the material of step (1), drop into shredder and continue grinding distribution 2h after stirring, grinding terminates rear room temperature and leaves standstill, and packs subsequently, gets product.

Application of paints of the present invention on forklift engine vapor pipe completely solidification after the performance test results be:

Test event	Technical indicator
		Sticking power grade	2 grades
Hardness	3H
		Thermotolerance (600 DEG C, 24h)	Paint film is complete, nothing cracking
Shock-resistance/cm	≥50
		Snappiness/mm	≤1
Water tolerance	>=240h, non-foaming, do not come off
		Resistance to machine oil	>=72h is non-foaming, do not come off
Petrol-resistance	>=72h is non-foaming, do not come off

Above-mentioned test is all followed relevant criterion and is carried out.

Claims (2)

1. the forklift engine vapor pipe composite water soluble silicone resin coating of high non-corrosibility, it is characterized in that, this water-borne coatings is made up of the raw material of following weight part: asbestos wool 4-6, nanometer sepiolite 5-6, graphene oxide 1-2, nano-zinc borate 0.2-0.3, solid content are the waterborne organic silicon resin emulsion 40-50 of 45-50%, sulfonated gilsonite powder 5-6, sodium lauryl sulphate 0.8-1, solid content are 20-30% nano aluminum colloidal sol 12-15, defoamer 0.2-0.3, water 25-35.

2. a kind of forklift engine vapor pipe its preparation method of the composite water soluble silicone resin coating of high non-corrosibility as claimed in claim 1, it is characterized in that, described preparation method is:

(1) first that sodium lauryl sulphate is soluble in water, sulfonated gilsonite powder, asbestos wool, nanometer sepiolite, graphene oxide are dropped in solution subsequently, be uniformly mixed by slurry grinding distribution 40-50min after 1.5-1.8h, gained material is for subsequent use;

(2) mixed with other leftover materials by the material of step (1), drop into shredder and continue grinding distribution 2-3h after stirring, grinding terminates rear room temperature and leaves standstill, and packs subsequently, gets product.