Polyaniline anti-rust metal cutting fluid
Technical field
The invention belongs to the metal working fluid field.
Background technology
When metallic substance by giving the set pattern lattice when cutting, be the mill sassafras between minimizing instrument and the workpiece, increase oilness and take away the heat that produces because of the mill sassafras, need and be cut at instrument and inject metalworking coolant between the metallic substance, be called for short cutting fluid.Cutting fluid also should have good Corrosion Protection except that above-mentioned functions, to guarantee the workpiece cleaning, not have the erosion of embroidery.Cutting fluid is the companion in the process of metal working, is again the meson that very easily causes metallic corrosion simultaneously.The cutting fluid that present China uses in process of metal working has two big classes, promptly water-insoluble metal working fluid and water-soluble metal cutting fluid.In these two kinds of cutting fluids, for improving the rustless property of product, dosed the organic anti-corrosive agent mostly, and acidifying takes place and goes bad in the organic anti-corrosive compound under high-temperature condition, recycle and can not guarantee its antiseptic property.
Summary of the invention
The invention provides a kind of polyaniline anti-rust metal cutting fluid, to solve the bad problem of metal current cutting fluid rustless property.The technical scheme that the present invention takes is: be made up of the component by following weight part:
25~30 parts of polyaniline aqueous sanitass
15~20 parts of trolamines
45~55 parts of polyvinylchloride latexs
2~3 parts of polyether glycols
15~40 parts in water
The preferred embodiment of the present invention is: be made up of the component by following weight part:
29.5 parts of polyaniline aqueous sanitass
18 parts of trolamines
50 parts of polyvinylchloride latexs
2.5 parts of polyether glycols
20 parts in water
The invention has the advantages that first polyaniline to mix with cutting fluid, improve the anti-embroidery erosion function of metal working fluid as anticorrosion compound.This rust preventive cutting fluid has special anticorrosion mechanism, it is generally acknowledged that polyaniline has certain redox potential, and it makes the surface of iron and steel that oxidation take place, and reaches the passivation potential of iron, makes the Fe of surface generation one deck densification of iron
3O
4Zone of oxidation has stoped the further oxidation of iron.In order to solve the preservative effect problem that cutting fluid recycles for a long time, we have proposed polyaniline to dissolve in the cutting fluid as anticorrosion compound first, thereby have effectively prevented organic anti-corrosive agent acidifying and the etching problem that brings, have improved quality product.Simultaneously, because this rust preventive cutting fluid remains in the metallic surface, the turnover staging life after the metal process segment is finished, anticorrosionly get rusty after extending to 30 days, save secondary and smeared anticorrosion greasy technology, reduced production cost, solved a corrosion difficult problem.
Physical and chemical index of the present invention: outward appearance: black liquor, pH value: 8.2-9.5 (3% distilled water diluting) density: 0.96-1.2, corrosion experiment: experiment method: SH/T0080, copper sheet, 45
#Steel disc: 100 ℃/24h, qualified.Damp and hot experiment: experiment method: GB/T2361, copper sheet, 45
#Steel disc: 25d is qualified.
Embodiment
Embodiment 1:
The preparation of anticorrosive polyaniline agent: the method for pressing prepares the anticorrosive polyaniline agent.
With 10 gram polyaniline in eigenstate, 1 gram Sulfuric acid disilver salt, join in 100 grams, 23% the sulfuric acid, under 90 ℃ temperature, stirred 2 hours, filter after cooling washing repeatedly three times to neutral, obtain about 50 gram black pastes; Get this slurry 4 grams, add deionized water 10 grams, add caustic soda 0.2 gram, pH value is transferred to 8-9, and then add 1 gram borax, stirred 1.5 hours with 1700 rev/mins, make it dissolving with high speed dispersor; Add zinc sulfate 0.004 gram again, Sodium Nitrite 0.35 restrains, Sodium Benzoate 0.4 gram, and ethanol 0.02 gram continues with high speed dispersor with the extremely dissolving of 1700 rev/mins of high speed dispersion.
Obtain polyaniline aqueous sanitas 15.9 grams.Its outward appearance is the black aqueous solution, free from extraneous odour, and density is (20 ℃) kg/m
3: 1050-1080, pH value are 9-10.
Preparation of the present invention:
Trolamine 18 grams; Polyvinyl chloride latex 50 grams; Polyether glycol 2.5 grams; Polyaniline aqueous rust-preventive agent 29.5 grams will add deionized water 20 grams after the above-mentioned species mixing, use high speed dispersor dispersed with stirring 10 minutes, obtain aqueous product 120 grams of black.When using, the user can dilute 20 times.
Embodiment 2:
The preparation of anticorrosive polyaniline agent is with embodiment 1;
Preparation of the present invention:
Trolamine 15 grams; Polyvinyl chloride latex 45 grams; Polyether glycol 2 grams; Polyaniline aqueous rust-preventive agent 25 grams will add deionized water 15 grams after the above-mentioned species mixing, use high speed dispersor dispersed with stirring 10 minutes, obtain aqueous product 102 grams of black.When using, the user can dilute 20 times.
Embodiment 3:
The preparation of anticorrosive polyaniline agent is with embodiment 1;
Preparation of the present invention:
Trolamine 20 grams; Polyvinyl chloride latex 55 grams; Polyether glycol 3 grams; Polyaniline aqueous rust-preventive agent 30 grams will add deionized water 40 grams after the above-mentioned species mixing, use high speed dispersor dispersed with stirring 10 minutes, obtain aqueous product 148 grams of black.When using, the user can dilute 20 times.