CN104109461A - Surface conditioning agent for plant-based aluminum alloy - Google Patents

Abstract

The invention discloses a surface conditioning agent for plant-based aluminum alloy. The surface conditioning agent is composed of the following raw materials in parts by weight: 1.3 to 2 parts of Chinese honeylocust fruit extract, 0.01 to 0.1 part of vanadium carbide, 0.6 to 1 part of pyromellitic dianhydride, 2 to 3 parts of palm wax, 1.8 to 2 parts of aerosil, 0.2 to 1 part of lemon oil, 0.7 to 1 part of polyimide, 0.1 to 0.4 part of lightweight calcium carbonate, 1 to 1.5 parts of dioctyl sodium sulfosuccinate, 1 to 2.4 parts of cetyl trimethyl ammonium chloride, 1.3 to 2 parts of phosphorous acid, 2 to 3 parts of film forming auxiliary agent, 17 to 20 parts of silane coupling agent KH570, and 120 to 140 parts of deionized water. The surface conditioning agent comprises plant base components such as lemon oil, Chinese honeylocust fruit extract, and the like, and the plant base components have a very good adhesivity strengthening effect, so the stability of the coating is greatly strengthened.

Description

A kind of plant base aluminum alloy surface treatment agent

Technical field

The present invention relates generally to field of surface treatment, relates in particular to a kind of plant base 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, form conversion film by electrochemical method in aluminum alloy surface, although this method can improve the corrosion resistance nature 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 carcinogenic substances such as heavy metal ion and nitrite such as chromium, 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, being considered to be expected to replace phosphate conversion processes 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 plant base aluminum alloy surface treatment agent.

The present invention is achieved by the following technical solutions:

A kind of plant base aluminum alloy surface treatment agent, it is made up of the raw material of following weight parts:

Chinese honey locust extracting solution 1.3-2, vanadium carbide 0.01-0.1, pyromellitic acid dianhydride 0.6-1, palm wax 2-3, micropowder silica gel 1.8-2, lemon oil 0.2-1, polyimide 0.7-1, light calcium carbonate 0.1-0.4, succinate sodium 2-ethylhexyl 1-1.5, palmityl trimethyl ammonium chloride 1-2.4, phosphorous acid 1.3-2, film coalescence aid 2-3, silane coupling agent KH570 17-20, deionized water 120-140;

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

Organosilicon crylic acid latex 30-40, flaxseed gum 2-3, polyhexamethylene guanidine 0.3-0.5, glycerin polyoxyethylene ether cocounut oil acid esters 0.5-1, ammonium meta-vanadate 0.1-0.2, potassium wolframate 0.1-0.2, Oleum Hippophae 0.4-1, deionized water 60-80;

Potassium wolframate is mixed with ammonium meta-vanadate, join in 10-20 deionized water doubly, at 70-80 DEG C, stirring heating 4-10 minute, adds flaxseed gum, is stirred to normal temperature, obtains gel;

Polyhexamethylene guanidine is joined in organosilicon crylic acid latex, after stirring, add above-mentioned gel, drip Oleum Hippophae, after dropwising, insulation leaves standstill 3-5 minute at 50-60 DEG C, adds the each raw material of residue, 200-300 rev/min of dispersed with stirring 20-30 minute, obtains described film coalescence aid.

A preparation method for plant base aluminum alloy surface treatment agent, comprises the following steps:

Palm wax, vanadium carbide, light calcium carbonate are mixed, after stirring, add lemon oil, insulated and stirred 3-5 minute at 40-50 DEG C, is cooled to normal temperature;

Palmityl trimethyl ammonium chloride is mixed with succinate sodium 2-ethylhexyl, join in deionized water, after stirring, add polyimide, 70-100 rev/min of dispersed with stirring 1-2 minute;

Above-mentioned each raw material after treatment is mixed with the each raw material of residue, and 200-300 rev/min of dispersed with stirring 1-2 hour, obtains described plant base aluminum alloy surface treatment agent.

Advantage of the present invention is:

The plant base composition such as lemon oil, Chinese honey locust extracting solution that surface treatment agent of the present invention adds, safety and environmental protection, and can play the close-burning effect of very large enhancing, strengthen the stability that forms coating.

Embodiment

Embodiment 1

A kind of plant base aluminum alloy surface treatment agent, it is made up of the raw material of following weight parts:

Chinese honey locust extracting solution 1.3, vanadium carbide 0.01, pyromellitic acid dianhydride 0.6-1, palm wax 3, micropowder silica gel 1.8, lemon oil 0.2, polyimide 0.7, light calcium carbonate 0.4, succinate sodium 2-ethylhexyl 1.5, palmityl trimethyl ammonium chloride 2.4, phosphorous acid 1.3, film coalescence aid 2, silane coupling agent KH570 20, deionized water 140;

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

Organosilicon crylic acid latex 40, flaxseed gum 3, polyhexamethylene guanidine 0.5, glycerin polyoxyethylene ether cocounut oil acid esters 0.5, ammonium meta-vanadate 0.2, potassium wolframate 0.2, Oleum Hippophae 0.4, deionized water 80;

Potassium wolframate is mixed with ammonium meta-vanadate, join in the deionized water of 20 times, at 80 DEG C, stirring heating 10 minutes, adds flaxseed gum, is stirred to normal temperature, obtains gel;

Polyhexamethylene guanidine is joined in organosilicon crylic acid latex, add above-mentioned gel after stirring, drip Oleum Hippophae, after dropwising, insulation leaves standstill 5 minutes at 50 DEG C, adds the each raw material of residue, and 300 revs/min of dispersed with stirring 30 minutes, obtain described film coalescence aid.

A preparation method for plant base aluminum alloy surface treatment agent, comprises the following steps:

Palm wax, vanadium carbide, light calcium carbonate are mixed, after stirring, add lemon oil, insulated and stirred 3 minutes, is cooled to normal temperature at 50 DEG C;

Palmityl trimethyl ammonium chloride is mixed with succinate sodium 2-ethylhexyl, join in deionized water, after stirring, add polyimide, 100 revs/min of dispersed with stirring 2 minutes;

Above-mentioned each raw material after treatment is mixed with the each raw material of residue, and 300 revs/min of dispersed with stirring 2 hours, obtain described plant base 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 DEG C, 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, occurs without rust staining;

Acid resistance:

This sheet material is sprayed to experiment with the 0.05mol/l sulfuric acid that temperature is 23 DEG C, 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 DEG C, 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 plant base aluminum alloy surface treatment agent, is characterized in that what it was made up of the raw material of following weight parts:

Chinese honey locust extracting solution 1.3-2, vanadium carbide 0.01-0.1, pyromellitic acid dianhydride 0.6-1, palm wax 2-3, micropowder silica gel 1.8-2, lemon oil 0.2-1, polyimide 0.7-1, light calcium carbonate 0.1-0.4, succinate sodium 2-ethylhexyl 1-1.5, palmityl trimethyl ammonium chloride 1-2.4, phosphorous acid 1.3-2, film coalescence aid 2-3, silane coupling agent KH570 17-20, deionized water 120-140;

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

Organosilicon crylic acid latex 30-40, flaxseed gum 2-3, polyhexamethylene guanidine 0.3-0.5, glycerin polyoxyethylene ether cocounut oil acid esters 0.5-1, ammonium meta-vanadate 0.1-0.2, potassium wolframate 0.1-0.2, Oleum Hippophae 0.4-1, deionized water 60-80;

Potassium wolframate is mixed with ammonium meta-vanadate, join in 10-20 deionized water doubly, at 70-80 DEG C, stirring heating 4-10 minute, adds flaxseed gum, is stirred to normal temperature, obtains gel;

Polyhexamethylene guanidine is joined in organosilicon crylic acid latex, after stirring, add above-mentioned gel, drip Oleum Hippophae, after dropwising, insulation leaves standstill 3-5 minute at 50-60 DEG C, adds the each raw material of residue, 200-300 rev/min of dispersed with stirring 20-30 minute, obtains described film coalescence aid.

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

Palm wax, vanadium carbide, light calcium carbonate are mixed, after stirring, add lemon oil, insulated and stirred 3-5 minute at 40-50 DEG C, is cooled to normal temperature;

Palmityl trimethyl ammonium chloride is mixed with succinate sodium 2-ethylhexyl, join in deionized water, after stirring, add polyimide, 70-100 rev/min of dispersed with stirring 1-2 minute;

Above-mentioned each raw material after treatment is mixed with the each raw material of residue, and 200-300 rev/min of dispersed with stirring 1-2 hour, obtains described plant base aluminum alloy surface treatment agent.