CN104313591A - Long-acting water-based antirust agent and preparation method thereof - Google Patents

Abstract

The invention discloses a long-acting water-based antirust agent. The long-acting water-based antirust agent is characterized in that the long-acting water-based antirust agent is prepared from the following raw materials in parts by weight: 8 to 12 parts of beta-cyclodextrin, 3 to 5 parts of hydroxypropyl methyl cellulose, 2 to 4 parts of rosin, 0.5 to 1 part of methyl salicylate, 1 to 2 parts of xanthan gum, 0.5 to 1 part of sodium lignin sulfonate, 0.5 to 1 part of sodium methylene bis-m-naphthalene sulfonate, 0.5 to 1 part of rosin-polythylene oxide ester, 6 to 8 parts of a performance additive, 0.05 to 0.1 part of carnosic acid, 0.1 to 0.2 part of sodium benzoate, and 40 to 50 parts of water. The antirust agent provided by the invention has the characteristics of safety and environment friendliness, has certain slow-release effect, and can protect metal products for a long time; a formed film is highly stable, and has a certain tolerance for salt-spray environments and hygrothermal environments.

Description

A kind of long-acting water-based rust-preventive agent and preparation method thereof

Technical field

The present invention relates to metal treatment field, be specifically related to a kind of long-acting water-based rust-preventive agent and preparation method thereof.

Background technology

Metal works, in the process of process for processing and transport, is easy to get rusty, and once get rusty, and produces detrimentally affect by the outward appearance of finished product and performance, and the serious steel that even can cause of corrosion are scrapped.Iron and steel gets rusty and to bring about great losses to national economy, therefore needs to use rust-preventive agent to protect metal.The mode of action of rust-preventive agent prevents metal generation corrosion by forming thin film in metallic surface.Conventional rust-preventive agent major part is oiliness, and it uses a large amount of organic solvent in the process of production, use, and to environment, therefore the research of water-based antirust has great importance.

Traditional water-base metal antirusting agent great majority all contain nitrite, and it has the advantages such as inexpensive, respond well and easy to use, easy removal, but can change into carcinogens due to nitrite, and it uses and discharge and is subjected to strict restriction.At present, the research of novel environment friendly water-based antirust starts to be paid close attention to widely, becomes a kind of developing trend.

Summary of the invention

The object of this invention is to provide a kind of long-acting water-based rust-preventive agent.

The present invention is achieved by the following technical solutions:

A kind of long-acting water-based rust-preventive agent, it is characterized in that, it is obtained by the raw material of following weight parts:

Beta-cyclodextrin 8-12, Vltra tears 3-5, rosin 2-4, wintergreen oil 0.5-1, xanthan gum 1-2, sodium lignosulfonate 0.5-1, sodium metnylene bis-naphthalene sulfonate 0.5-1, polyoxylethylene abietate 0.5-1, modified additive 6-8, Salvin 0.05-0.1, Sodium Benzoate 0.1-0.2, water 40-50;

Wherein modified additive is made up of the raw material of following weight part:

Nano imvite 10-20, organosilicon quaternary ammonium salt 3-5, polyoxyethylene glycol 2-4, oxysuccinic acid 0.5-1, Weibull 0.1-0.2, chlorogenic acid 0.05-0.1, tripoly phosphate sodium STPP 1-2;

The preparation method of modified additive is:

Nano imvite and oxysuccinic acid, tripoly phosphate sodium STPP are added ultrasonic disperse 15-30min in suitable quantity of water; dry after filtering; add polyoxyethylene glycol, Weibull, chlorogenic acid and ethanol in proper amount ultrasonic disperse 5-10min and add reaction vessel in the lump again; add organosilicon quaternary ammonium salt; heated and stirred back flow reaction 8-12h under nitrogen protection; filter and with washing with alcohol for several times, vacuum-drying is complete, to obtain final product.

A preparation method for long-acting water-based rust-preventive agent, is characterized in that, comprises the following steps:

(1) by weight ethanol: water=2:1 prepares solvent, again by weight rosin: ethanol=1:5 prepares rosin ethanolic soln, first beta-cyclodextrin, sodium lignosulfonate and sodium metnylene bis-naphthalene sulfonate are added in described solvent, 8000-10000r/min high-speed homogenization 5-10min, add polyoxylethylene abietate, wintergreen oil, Salvin and described rosin ethanolic soln again, 60-80 DEG C, 800-1000r/min stirs 1-2h, filter and wash, obtaining active powder;

(2) Vltra tears and xanthan gum are added to the water, 60-80 DEG C, 400-600r/min stirs 15-30min, adds active powder obtained in (1) and all the other raw materials 8000-10000r/min high-speed homogenization 5-10min after cooling, after packing and get final product.

Advantage of the present invention is:

1., by the improvement to recipe optimization, make rust-preventive agent have certain slow release effect, and the film good stability formed, can protect metal products for a long time, also have certain tolerance to salt mist environment, hygrothermal environment;

2. by adding modified additive, rust-preventive agent being formed in metallic surface firmly, fine and close, corrosion resistant rete, also having the effect such as anti-electrostatic, antibacterial and mouldproof, easy decontamination simultaneously.

Embodiment

Non-limiting examples of the present invention is as follows:

A kind of long-acting water-based rust-preventive agent, is prepared from by the component raw material of following weight (kg):

Beta-cyclodextrin 10, Vltra tears 4, rosin 3, wintergreen oil 0.8, xanthan gum 1.5, sodium lignosulfonate 0.8, sodium metnylene bis-naphthalene sulfonate 0.8, polyoxylethylene abietate 0.8, modified additive 7, Salvin 0.08, Sodium Benzoate 0.15, water 45;

Wherein, modified additive is made up of the raw material of following weight (kg):

Nano imvite 15, organosilicon quaternary ammonium salt 4, polyoxyethylene glycol 3, oxysuccinic acid 0.8, Weibull 0.15, chlorogenic acid 0.08, tripoly phosphate sodium STPP 1.5;

The preparation method of modified additive:

Nano imvite and oxysuccinic acid, tripoly phosphate sodium STPP are added ultrasonic disperse 30min in suitable quantity of water; dry after filtering; add polyoxyethylene glycol, Weibull, chlorogenic acid and ethanol in proper amount ultrasonic disperse 10min and add reaction vessel in the lump again; add organosilicon quaternary ammonium salt; heated and stirred back flow reaction 10h under nitrogen protection; filter and with washing with alcohol for several times, vacuum-drying is complete, to obtain final product.

The preparation method of long-acting water-based rust-preventive agent comprises the following steps:

(1) by weight ethanol: water=2:1 prepares solvent, again by weight rosin: ethanol=1:5 prepares rosin ethanolic soln, first beta-cyclodextrin, sodium lignosulfonate and sodium metnylene bis-naphthalene sulfonate are added in described solvent, 10000r/min high-speed homogenization 5min, add polyoxylethylene abietate, wintergreen oil, Salvin and described rosin ethanolic soln again, 80 DEG C, 1000r/min stirs 1h, filter and wash, obtaining active powder;

(2) Vltra tears and xanthan gum are added to the water, 80 DEG C, 600r/min stirs 30min, adds active powder obtained in (1) and all the other raw materials 10000r/min high-speed homogenization 5min after cooling, after packing and get final product.

Through inspection, humid heat test 45# steel disc 20 days is qualified, and salt-fog test 45# steel disc 7 days is qualified.

Claims (2)

1. a long-acting water-based rust-preventive agent, is characterized in that, it is obtained by the raw material of following weight parts:

Beta-cyclodextrin 8-12, Vltra tears 3-5, rosin 2-4, wintergreen oil 0.5-1, xanthan gum 1-2, sodium lignosulfonate 0.5-1, sodium metnylene bis-naphthalene sulfonate 0.5-1, polyoxylethylene abietate 0.5-1, modified additive 6-8, Salvin 0.05-0.1, Sodium Benzoate 0.1-0.2, water 40-50;

Described modified additive is made up of the raw material of following weight part:

Nano imvite 10-20, organosilicon quaternary ammonium salt 3-5, polyoxyethylene glycol 2-4, oxysuccinic acid 0.5-1, Weibull 0.1-0.2, chlorogenic acid 0.05-0.1, tripoly phosphate sodium STPP 1-2;

The preparation method of described modified additive is:

Nano imvite and oxysuccinic acid, tripoly phosphate sodium STPP are added ultrasonic disperse 15-30min in suitable quantity of water; dry after filtering; add polyoxyethylene glycol, Weibull, chlorogenic acid and ethanol in proper amount ultrasonic disperse 5-10min and add reaction vessel in the lump again; add organosilicon quaternary ammonium salt; heated and stirred back flow reaction 8-12h under nitrogen protection; filter and with washing with alcohol for several times, vacuum-drying is complete, to obtain final product.

2. the preparation method of a kind of long-acting water-based rust-preventive agent according to claim 1, is characterized in that, comprise the following steps:

(1) by weight ethanol: water=2:1 prepares solvent, again by weight rosin: ethanol=1:5 prepares rosin ethanolic soln, first beta-cyclodextrin, sodium lignosulfonate and sodium metnylene bis-naphthalene sulfonate are added in described solvent, 8000-10000r/min high-speed homogenization 5-10min, add polyoxylethylene abietate, wintergreen oil, Salvin and described rosin ethanolic soln again, 60-80 DEG C, 800-1000r/min stirs 1-2h, filter and wash, obtaining active powder;

(2) Vltra tears and xanthan gum are added to the water, 60-80 DEG C, 400-600r/min stirs 15-30min, adds active powder obtained in (1) and all the other raw materials 8000-10000r/min high-speed homogenization 5-10min after cooling, after packing and get final product.