CN104109856A - Antirust aluminum alloy surface treatment agent - Google Patents

Abstract

The present invention discloses an antirust aluminum alloy surface treatment agent, which is composed of the following raw materials by weight: 1-2 parts of Nadic anhydride, 0.1-0.2 part of sarcandra glabra essential oil, 3-5 parts of manganese sulfate, 1-2 parts of phosphate, 0.7-1 part of magnesium silicate, 0.6-1 part of sodium tripolyphosphate, 2.5-4 parts of mannitol, 1-1.6 parts of tetrabutylammonium bromide, 0.6-1 part of butyltin tris(2-ethylhexanoate), 0.1-0.2 part of illite powder, 0.6-1 part of diisopropylethanolamine, 2-3 parts of a coalescent, 10-12 parts of a silane coupling agent KH590, 10-13 parts of a silane coupling agent KH560 and 140-160 parts of deionized water. The raw materials in the invention can effectively reduce the surface tension of water agent, ensure the spreading area and the effective concentration of the product, well improve the bonding strength of the coating film, and play a very good effect of rust protection.

Description

A kind of rust-preventing aluminum alloy surface treatment agent

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Technical field

The present invention relates generally to field of surface treatment, relates in particular to a kind of rust-preventing aluminum alloy surface treatment agent.

Background technology

The surface treatment method of aluminium alloy has a lot, as Physical, chemical method, physico-chemical processes and synthetic method.Conventional method is anonizing now, by electrochemical method, in aluminum alloy surface, form conversion film, although this method can improve the rustless property of aluminium alloy, but the ability that it conforms, transform rete even not, easily come off, wear resisting property does not improve, and although traditional phosphate conversion and chromating process for treating surface can obtain good effect, but contain zinc in the waste liquid of discharging in treating processes, manganese, nickel, the heavy metal ion such as chromium and the sub-antirust carcinogenic substance that waits, environmental pollution is very serious, and metallic surface silanization treatment technology is due to the material of hurm involved environment not, energy consumption in production process is low, technical applications is extensive, be considered to be expected to replace phosphate conversion processing and chromating processing, that recent development direction is protected separately in metallic surface.

Summary of the invention

The object of the invention is just to provide a kind of rust-preventing aluminum alloy surface treatment agent.

The present invention is achieved by the following technical solutions:

A rust-preventing aluminum alloy surface treatment agent, it is comprised of the raw material of following weight parts:

Carbic anhydride 1-2, Sarcandra glabra essential oil 0.1-0.2, manganous sulfate 3-5, phosphoric acid ester 1-2, Magnesium Silicate q-agent 0.7-1, tripoly phosphate sodium STPP 0.6-1, N.F,USP MANNITOL 2.5-4, Tetrabutyl amonium bromide 1-1.6, three sad butyl tin 0.6-1, the stone flour 0.1-0.2 of Erie, diisopropyl ethanolamine 0.6-1, film coalescence aid 2-3, silane coupling agent KH590 10-12, silane coupling agent KH560 10-13, deionized water 140-160;

Described film coalescence aid is comprised of the raw material of following weight parts:

Cetomacrogol 1000 20-26, Sodium Silicofluoride 1-2, calcium acetylacetonate 0.2-0.3, ammonium molybdate 0.5-1, Rizinsan K2 A2 1-2, artemisia glue 1-2, Polysorbate 80 1-2, silane coupling agent kh560 0.3-0.5, deionized water 70-80;

Sodium Silicofluoride, ammonium molybdate, silane coupling agent kh560 mixing and ball milling is even, add the 20-30% of above-mentioned deionized water weight, 600-800 rev/min of dispersed with stirring 3-7 minute, obtains dispersion liquid;

Cetomacrogol 1000 is mixed with artemisia glue, the temperature that raises after stirring is 55-60 ℃, add Rizinsan K2 A2, insulated and stirred 2-4 minute, join in remaining deionized water, 100-200 rev/min of dispersed with stirring 4-6 minute, adds above-mentioned dispersion liquid and each raw material of residue, 400-600 rev/min of dispersed with stirring 10-15 minute, obtains described film coalescence aid.

A preparation method for rust-preventing aluminum alloy surface treatment agent, comprises the following steps:

Manganous sulfate, Magnesium Silicate q-agent, Erie's stone flour are mixed, being milled to fineness is 40-60 μ m, the 50-60% that adds tripoly phosphate sodium STPP, diisopropyl ethanolamine, above-mentioned deionized water weight, 100-180 rev/min is uniformly mixed 10-15 minute, mix with each raw material of residue, 200-300 rev/min of dispersed with stirring 1-2 hour, obtains described rust-preventing aluminum alloy surface treatment agent.

Advantage of the present invention is:

Each raw material adding in of the present invention, can effectively reduce aqua surface tension, guarantees product spread area and effective concentration, can well improve the cohesive strength of filming, and plays good corrosion protection effect.

Embodiment

Embodiment 1

A rust-preventing aluminum alloy surface treatment agent, it is comprised of the raw material of following weight parts:

Carbic anhydride 1, Sarcandra glabra essential oil 0.2, manganous sulfate 3, phosphoric acid ester 2, Magnesium Silicate q-agent 0.7, tripoly phosphate sodium STPP 0.6, N.F,USP MANNITOL 2.5, the sad butyl tin 0.6 of Tetrabutyl amonium bromide 1.6, three, Erie's stone flour 0.2, diisopropyl ethanolamine 0.6, film coalescence aid 3, silane coupling agent KH590 12, silane coupling agent KH560 13, deionized water 160;

Described film coalescence aid is comprised of the raw material of following weight parts:

Cetomacrogol 1000 26, Sodium Silicofluoride 2, calcium acetylacetonate 0.3, ammonium molybdate 0.5, Rizinsan K2 A2 2, artemisia glue 1, Polysorbate 80 1, silane coupling agent kh560 0.5, deionized water 80;

Sodium Silicofluoride, ammonium molybdate, silane coupling agent kh560 mixing and ball milling is even, add 20%, 800 rev/min of dispersed with stirring 3 minutes of above-mentioned deionized water weight, obtain dispersion liquid;

Cetomacrogol 1000 is mixed with artemisia glue, the temperature that raises after stirring is 60 ℃, add Rizinsan K2 A2, insulated and stirred 4 minutes, join in remaining deionized water, 200 revs/min of dispersed with stirring 4 minutes, add above-mentioned dispersion liquid and each raw material of residue, 600 revs/min of dispersed with stirring 15 minutes, obtain described film coalescence aid.

A preparation method for rust-preventing aluminum alloy surface treatment agent, comprises the following steps:

Manganous sulfate, Magnesium Silicate q-agent, Erie's stone flour are mixed, being milled to fineness is 60 μ m, add 50% of tripoly phosphate sodium STPP, diisopropyl ethanolamine, above-mentioned deionized water weight, 180 revs/min are uniformly mixed 15 minutes, mix with each raw material of residue, 300 revs/min of dispersed with stirring 2 hours, obtain described rust-preventing aluminum alloy surface treatment agent.

Using method:

The Al alloy parts carrying out after degreasing, washing is placed in to surface treatment agent of the present invention and floods, working temperature 20-40 ℃, working hour 0.5-1min.

Performance test:

Getting the aluminum alloy plate materials of surface treatment agent processing of the present invention tests, the specification of this sheet material is 80mm * 100mm * 4mm, by this sheet material lateral dissection, carry out spray test, agents useful for same is that concentration is 5% sodium chloride solution, test period 300 hours, measures the bubbling width forming in line of cut one side, and result bubbling width is 0;

Salt tolerance:

It is in 5% sodium chloride solution that this sheet material is immersed in to concentration, soaks 300 hours, and material surface is substantially unchanged, soaks 300 hours, without rust staining, occurs;

Acid resistance:

This sheet material is sprayed to experiment with the 0.05mol/l sulfuric acid that temperature is 23 ℃, and experimental period 20 hours, cleans with clear water, and indoor placement 2 hours, coating surface was unchanged, and nothing is bubbled, nothing comes off, nothing is damaged;

Stripper-resistance:

The paste that this plate surface is coated with to last layer 2-3mm, being put into temperature is 50 ℃, and in the watertight chest that relative humidity is 90-96%, experimental period 24 hours, cleans with clear water after taking-up, and coating surface is without bubbling, without coming off, without damaged.

Claims (2)

1. a rust-preventing aluminum alloy surface treatment agent, is characterized in that what it was comprised of the raw material of following weight parts:

Carbic anhydride 1-2, Sarcandra glabra essential oil 0.1-0.2, manganous sulfate 3-5, phosphoric acid ester 1-2, Magnesium Silicate q-agent 0.7-1, tripoly phosphate sodium STPP 0.6-1, N.F,USP MANNITOL 2.5-4, Tetrabutyl amonium bromide 1-1.6, three sad butyl tin 0.6-1, the stone flour 0.1-0.2 of Erie, diisopropyl ethanolamine 0.6-1, film coalescence aid 2-3, silane coupling agent KH590 10-12, silane coupling agent KH560 10-13, deionized water 140-160;

Described film coalescence aid is comprised of the raw material of following weight parts:

Cetomacrogol 1000 20-26, Sodium Silicofluoride 1-2, calcium acetylacetonate 0.2-0.3, ammonium molybdate 0.5-1, Rizinsan K2 A2 1-2, artemisia glue 1-2, Polysorbate 80 1-2, silane coupling agent kh560 0.3-0.5, deionized water 70-80;

Sodium Silicofluoride, ammonium molybdate, silane coupling agent kh560 mixing and ball milling is even, add the 20-30% of above-mentioned deionized water weight, 600-800 rev/min of dispersed with stirring 3-7 minute, obtains dispersion liquid;

Cetomacrogol 1000 is mixed with artemisia glue, the temperature that raises after stirring is 55-60 ℃, add Rizinsan K2 A2, insulated and stirred 2-4 minute, join in remaining deionized water, 100-200 rev/min of dispersed with stirring 4-6 minute, adds above-mentioned dispersion liquid and each raw material of residue, 400-600 rev/min of dispersed with stirring 10-15 minute, obtains described film coalescence aid.

2. a preparation method for rust-preventing aluminum alloy surface treatment agent as claimed in claim 1, is characterized in that comprising the following steps:

Manganous sulfate, Magnesium Silicate q-agent, Erie's stone flour are mixed, being milled to fineness is 40-60 μ m, the 50-60% that adds tripoly phosphate sodium STPP, diisopropyl ethanolamine, above-mentioned deionized water weight, 100-180 rev/min is uniformly mixed 10-15 minute, mix with each raw material of residue, 200-300 rev/min of dispersed with stirring 1-2 hour, obtains described rust-preventing aluminum alloy surface treatment agent.