阅读说明：本技术 一种除锈快不易反锈的碱性除锈剂 (Alkaline rust remover with quick rust removal and difficult rust removal ) 是由 张斌 于 2021-07-23 设计创作，主要内容包括：本发明涉及除锈剂技术领域,且公开了一种除锈快不易反锈的碱性除锈剂,包括以下质量百分比的组分：水62～78%、氢氧化钾3～5%、单乙醇胺5～10%、柠檬酸钠2～5%、高级碱性物10～15%和其他添加物2～3%。本发明中的碱性除锈剂,以氢氧化钾和高级碱性物为主要原料,在单乙醇胺、柠檬酸钠和其他添加物作为添加剂,制备得到除锈效果好、除锈快,且不易反锈、容易清洗的碱性除锈剂,其制作原料低廉易获取,降低了生产和使用成本,经济效益高,且清洗后的残液不会对生态环境造成影响,环保性好。(The invention relates to the technical field of rust removers, and discloses an alkaline rust remover with quick rust removal and difficult rust removal, which comprises the following components in percentage by mass: 62-78% of water, 3-5% of potassium hydroxide, 5-10% of monoethanolamine, 2-5% of sodium citrate, 10-15% of high-grade alkaline matters and 2-3% of other additives. The alkaline rust remover disclosed by the invention is prepared by taking potassium hydroxide and high-grade alkaline substances as main raw materials and taking monoethanolamine, sodium citrate and other additives as additives, the alkaline rust remover is good in rust removing effect, fast in rust removing, not easy to rust and easy to clean, the preparation raw materials are cheap and easy to obtain, the production and use costs are reduced, the economic benefit is high, the cleaned residual liquid cannot influence the ecological environment, and the environmental friendliness is good.)

1. The alkaline rust remover with quick rust removal and difficult rust removal is characterized in that: the composite material comprises the following components in percentage by mass: 62-78% of water, 3-5% of potassium hydroxide, 5-10% of monoethanolamine, 2-5% of sodium citrate, 10-15% of high-grade alkaline matters and 2-3% of other additives.

2. The alkaline rust remover which can remove rust quickly and is not easy to rust as claimed in claim 1, wherein: the composite material comprises the following components in percentage by mass: 72% of water, 4% of potassium hydroxide, 7% of monoethanolamine, 4% of sodium citrate, 11% of higher alkaline matters and 2% of other additives.

3. The alkaline rust remover which can remove rust quickly and is not easy to rust as claimed in claim 1, wherein: the composite material comprises the following components in percentage by mass: 70% of water, 4% of potassium hydroxide, 8% of monoethanolamine, 3% of sodium citrate, 12% of higher alkaline matters and 3% of other additives.

4. The alkaline rust remover which can remove rust quickly and is not easy to rust as claimed in claim 1, wherein: the other additives comprise AMP-95, a defoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the defoaming agent to the complexing agent is 5: 1: 8 to 10.

5. The alkaline rust remover as claimed in claim 4, which is fast in removing rust and less prone to rust removal, characterized in that: the defoaming agent is a mineral oil defoaming agent, and the complexing agent is one of sodium hexadecyl sulfonate, sodium pyrophosphate and ethylenediamine tetraacetic acid.

6. The alkaline rust remover which can remove rust quickly and is not easy to rust as claimed in claim 1, wherein: the higher alkaline substance is sodium hydroxide.

7. The alkaline rust remover which can remove rust quickly and is not easy to rust as claimed in claim 1, wherein: the preparation method of the alkaline rust remover comprises the following steps: mixing and stirring potassium hydroxide and water for 10-15 min, then adding other components, and stirring for 15-30 min to obtain the uniform alkaline rust remover.

Technical Field

The invention relates to the technical field of rust removers, in particular to an alkaline rust remover which can remove rust quickly and is not easy to remove rust.

Background

The rust remover is also called as a rust loosening agent and mainly used for loosening rusted fasteners, lubricating the fasteners which cannot be disassembled and conveniently disassembling the rusted fasteners. The lubricating cooling liquid can form durable anti-corrosion protection on the exposed metal surface, prevent new corrosion formation, is an ideal lubricating cooling liquid, is suitable for tapping on the surfaces of stainless steel and aluminum plates, can effectively clean and dry electronic equipment, and improves the conductivity.

The existing rust remover is prepared by taking strong acid as a main component, such as sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid and the like, and the acid rust remover has obvious defects, namely firstly, hydrogen can be generated in the treatment process, so that the hydrogen embrittlement phenomenon of steel is generated, the mechanical property of metal is reduced, and the strength of the metal is influenced; secondly, acid mist is easily formed, the health of operators is affected, equipment is corroded, and the environment is polluted; thirdly, the consumption of acid liquor is large, and the treatment cost is high; the emissions of rust removal can also corrode the pipe and further contaminate the soil and environment.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the alkaline rust remover which can remove rust quickly and is not easy to rust, has the advantages of quick rust removal, difficult rust removal, low use cost and the like, and solves the problems of performance reduction of cleaned metal, environmental pollution and high use cost caused by the acidic rust remover on the current market.

(II) technical scheme

In order to realize the purposes of rapid rust removal and environmental protection, the invention provides the following technical scheme: an alkaline rust remover with quick rust removal and difficult rust removal comprises the following components in percentage by mass: 62-78% of water, 3-5% of potassium hydroxide, 5-10% of monoethanolamine, 2-5% of sodium citrate, 10-15% of high-grade alkaline matters and 2-3% of other additives.

Preferably, the composition comprises the following components in percentage by mass: 72% of water, 4% of potassium hydroxide, 7% of monoethanolamine, 4% of sodium citrate, 11% of higher alkaline matters and 2% of other additives.

Preferably, the composition comprises the following components in percentage by mass: 70% of water, 4% of potassium hydroxide, 8% of monoethanolamine, 3% of sodium citrate, 12% of higher alkaline matters and 3% of other additives.

Preferably, the other additives are AMP-95, an antifoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the antifoaming agent to the complexing agent is 5: 1: 8 to 10.

Preferably, the defoaming agent is a mineral oil defoaming agent, and the complexing agent is one of sodium hexadecyl sulfonate, sodium pyrophosphate and ethylenediamine tetraacetic acid.

Preferably, the higher base is sodium hydroxide.

Preferably, the preparation of the alkaline rust remover comprises the following steps: mixing and stirring potassium hydroxide and water for 10-15 min, then adding other components, and stirring for 15-30 min to obtain the uniform alkaline rust remover.

(III) advantageous effects

Compared with the prior art, the invention provides the alkaline rust remover which has the advantages of quick rust removal and difficult rust removal, and the alkaline rust remover has the following beneficial effects:

1. the alkaline rust remover disclosed by the invention takes potassium hydroxide and high-grade alkaline matters as main raw materials, the rust removing effect is good, monoethanolamine plays a buffering role, sodium citrate is used for adjusting the pH value, additives in other additives can improve the dispersibility of the rust remover, and the caking is avoided.

2. The alkaline rust remover does not generate hydrogen in the rust removing process and does not influence the metal performance.

3. The alkaline rust remover disclosed by the invention has the advantages that the manufacturing raw materials are low in cost and easy to obtain, the addition amount of the rust remover is low when the alkaline rust remover is used, the production and use costs are greatly reduced, and the economic benefit is high.

4. The alkaline rust remover can keep the brightness of the metal surface after removing rust on the metal surface, has good rust resistance, and the cleaned residual liquid can not influence the ecological environment, thereby having good environmental protection.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

An alkaline rust remover with quick rust removal and difficult rust removal comprises the following components in percentage by mass: 62% of water, 5% of potassium hydroxide, 10% of monoethanolamine, 5% of sodium citrate, 15% of higher alkaline matters and 3% of other additives, wherein the other additives are AMP-95, a defoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the defoaming agent to the complexing agent is 5: 1: 8, the defoaming agent is a mineral oil defoaming agent, and the complexing agent is sodium hexadecyl sulfonate.

Mixing and stirring potassium hydroxide and water for 10min, then adding other components, and stirring for 25min to obtain the uniform alkaline rust remover.

Example two

An alkaline rust remover with quick rust removal and difficult rust removal comprises the following components in percentage by mass: 72% of water, 4% of potassium hydroxide, 7% of monoethanolamine, 4% of sodium citrate, 11% of higher alkaline matters and 2% of other additives, wherein the other additives are AMP-95, a defoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the defoaming agent to the complexing agent is 5: 1: 8-10, wherein the defoaming agent is a mineral oil defoaming agent, and the complexing agent is sodium hexadecyl sulfonate.

Mixing potassium hydroxide and water, stirring for 10min, adding other components, and stirring for 20min to obtain the uniform alkaline rust remover.

EXAMPLE III

An alkaline rust remover with quick rust removal and difficult rust removal comprises the following components in percentage by mass: 70% of water, 4% of potassium hydroxide, 8% of monoethanolamine, 3% of sodium citrate, 12% of high-grade alkaline matters and 3% of other additives, wherein the other additives are AMP-95, a defoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the defoaming agent to the complexing agent is 5: 1: 9, the defoaming agent is a mineral oil defoaming agent, and the complexing agent is sodium pyrophosphate.

Mixing and stirring potassium hydroxide and water for 13min, then adding other components, and stirring for 25min to obtain the uniform alkaline rust remover.

Example four

An alkaline rust remover with quick rust removal and difficult rust removal comprises the following components in percentage by mass: 78% of water, 3% of potassium hydroxide, 5% of monoethanolamine, 2% of sodium citrate, 10% of higher alkaline matters and 2% of other additives, wherein the other additives are AMP-95, a defoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the defoaming agent to the complexing agent is 5: 1: 9, the defoaming agent is a mineral oil defoaming agent, and the complexing agent is sodium pyrophosphate.

Mixing and stirring potassium hydroxide and water for 15min, then adding other components, and stirring for 25min to obtain the uniform alkaline rust remover.

EXAMPLE five

An alkaline rust remover with quick rust removal and difficult rust removal comprises the following components in percentage by mass: 76% of water, 4% of potassium hydroxide, 6% of monoethanolamine, 2% of sodium citrate, 10% of higher alkaline matters and 2% of other additives, wherein the other additives are AMP-95, a defoaming agent and a complexing agent, and the volume ratio of the AMP-95 to the defoaming agent to the complexing agent is 5: 1: 10, the defoaming agent is a mineral oil defoaming agent, and the complexing agent is ethylenediamine tetraacetic acid.

Mixing and stirring potassium hydroxide and water for 15min, then adding other components, and stirring for 30min to obtain the uniform alkaline rust remover.

Control group one

The alkaline rust remover existing in the market is purchased.

Control group two

Purchasing the existing acid rust remover on the market

The alkaline rust remover prepared by the five groups of examples and the alkaline rust remover and water in the two control groups are mixed according to the proportion of 1: 9, add 7 parts rust remover respectively in 7 ultrasonic cleaner to put into mild and the heavy sample that rusts, begin to wash under same temperature and same operating power, record the time when rusty sample surface totally is rustless in every ultrasonic cleaner, after the washing, put into the rusty humid environment of easy, observe and record the phenomenon after 2 days with sample label, the result is as follows:

group of	Non-rusting time/min of slightly rusted sample	Rustless time/min of severe rusty sample	After 2 days, the performance is
				Example one	5	7	Has a small amount of obvious rusty yellow spots
Example two	3	5	No obvious rusting phenomenon
				EXAMPLE III	3.5	5.5	Has a small amount of slightly rusty yellow spots
Example four	4	6	Has a small amount of obvious rusty yellow spots
				EXAMPLE five	4.5	6.5	Has a small amount of obvious rusty yellow spots
Control group one	10	16	Has obvious sheet block-shaped rusting phenomenon
				Control group two	8	13	Has obvious sheet block-shaped rusting phenomenon

In addition, in five groups of embodiments, the rust removing time of three rust removers in the obvious embodiment is shorter than that of other embodiments, and the rust removing effect after rust removal is better, so that the proportion of the rust removers in the third embodiment is optimal.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.