阅读说明：本技术 一种高效环保型水基金属脱脂剂 (Efficient environment-friendly water-based metal degreasing agent ) 是由 鲁浩 于占龙 曾丽卿 张玉成 许铮喆 徐先锋 田超强 高飞 于 2020-05-14 设计创作，主要内容包括：本发明涉及一种高效环保型水基金属脱脂剂,应用于金属表面处理技术领域,由以下各组分组成,其化学成分质量百分比为：烷基酚聚氧乙烯醚1.2-1.8％、α-烯基磺酸钠0.4-0.8％、二甲苯磺酸钠0.3-0.6％、硫脲0.2-0.3％、碳酸钠0.5-1.0％,余量为去离子水。本发明的水基金属脱脂剂采用烷基酚聚氧乙烯醚和α-烯基磺酸钠进行复配,同时,加入一定量的二甲苯磺酸钠、硫脲和碳酸钠,实现了在常温下具有优良的洗涤效果,同时,配方碱性低,对金属的腐蚀性小,特别适用于不耐碱的金属,并且对环境友好,具有很好的推广价值。(The invention relates to an efficient environment-friendly water-based metal degreasing agent, which is applied to the technical field of metal surface treatment and comprises the following components in percentage by mass: 1.2 to 1.8 percent of alkylphenol polyoxyethylene, 0.4 to 0.8 percent of alpha-alkenyl sodium sulfonate, 0.3 to 0.6 percent of sodium xylene sulfonate, 0.2 to 0.3 percent of thiourea, 0.5 to 1.0 percent of sodium carbonate and the balance of deionized water. The water-based metal degreasing agent disclosed by the invention is prepared by compounding alkylphenol ethoxylates and alpha-sodium alkenyl sulfonate, and simultaneously, a certain amount of sodium xylene sulfonate, thiourea and sodium carbonate are added, so that the water-based metal degreasing agent has an excellent washing effect at normal temperature, is low in formula alkalinity, small in corrosivity to metal, particularly suitable for metal which is not alkali-resistant, environment-friendly and high in popularization value.)

1. The high-efficiency environment-friendly water-based metal degreasing agent is characterized in that: the paint consists of the following components in percentage by mass:

1.2-1.8% of alkylphenol polyoxyethylene, 0.4-0.8% of alpha-alkenyl sodium sulfonate, 0.3-0.6% of sodium xylene sulfonate, 0.2-0.3% of thiourea, 0.5-1.0% of sodium carbonate and the balance of deionized water;

the specific preparation method of the water-based metal degreasing agent comprises the following steps:

(1) weighing raw materials of each component according to a formula;

(2) adding the raw materials of the components in the step (1) into deionized water;

(3) and (3) stirring the mixture obtained in the step (2) at room temperature for 30 minutes to obtain the compound.

2. The efficient and environment-friendly water-based metal degreasing agent as recited in claim 1, wherein: the paint consists of the following components in percentage by mass:

1.2 percent of alkylphenol polyoxyethylene, 0.4 percent of alpha-sodium olefin sulfonate, 0.5 percent of sodium xylene sulfonate, 0.2 percent of thiourea, 0.8 percent of sodium carbonate and the balance of deionized water.

3. The efficient and environment-friendly water-based metal degreasing agent as recited in claim 1, wherein: the paint consists of the following components in percentage by mass:

1.4% of alkylphenol polyoxyethylene, 0.5% of alpha-sodium olefin sulfonate, 0.3% of sodium xylene sulfonate, 0.27% of thiourea, 1.0% of sodium carbonate and the balance of deionized water.

4. The efficient and environment-friendly water-based metal degreasing agent as recited in claim 1, wherein: the paint consists of the following components in percentage by mass:

1.6 percent of alkylphenol polyoxyethylene, 0.8 percent of alpha-sodium olefin sulfonate, 0.6 percent of sodium xylene sulfonate, 0.28 percent of thiourea, 0.5 percent of sodium carbonate and the balance of deionized water.

5. The efficient and environment-friendly water-based metal degreasing agent as recited in claim 1, wherein: the paint consists of the following components in percentage by mass:

1.8 percent of alkylphenol polyoxyethylene, 0.6 percent of alpha-sodium olefin sulfonate, 0.4 percent of sodium xylene sulfonate, 0.3 percent of thiourea, 0.7 percent of sodium carbonate and the balance of deionized water.

Technical Field

The invention relates to the technical field of metal surface treatment, in particular to a high-efficiency environment-friendly water-based metal degreasing agent.

Background

At present, the metal degreasing agents are various and mostly cleaned at high temperature, the cleaning effect is poor at normal temperature, or the degreasing agents contain phosphorus and have high emission requirements, and then organic solvents are used, so that the economic cost is high, and certain pollution is caused to the environment.

A great amount of degreasing agents on the market, such as patent with publication number CN109536976A, disclose a multifunctional degreasing agent, which can be used at room temperature, has good comprehensive capacity of degreasing and dewaxing, and the degreasing rate can reach 99 percent, but the degreasing agent contains phosphate potassium salt, and phosphorus-containing wastewater can cause mass propagation of aquatic microorganisms due to eutrophication effect, excessively consume nutrients in water, pollute river and sea water areas, endanger aquatic animals, and cause red tide phenomenon, so the current discharge is strictly controlled.

For another example, patent with publication number CN109778200A discloses a metal surface degreasing agent, which is suitable for aluminum alloy parts, galvanized parts, cold-rolled steel plates, etc., and has not only small alkali corrosion amount, but also excellent cleaning effect, and good matching performance for surface conditioning and phosphating treatment in the subsequent process.

Therefore, there is a need to design a water-based metal degreasing agent with excellent cleaning effect at normal temperature and without phosphorus, so as to solve the above technical problems.

Disclosure of Invention

The invention provides an efficient environment-friendly water-based metal degreasing agent, which is suitable for alkali-resistant metals, particularly for cleaning the surface of metal aluminum, and solves the problems of serious environmental pollution, poor oil removal effect, complex formula and the like of the degreasing agent in the prior art.

The efficient environment-friendly water-based metal degreasing agent disclosed by the invention comprises the following components in percentage by mass:

1.2-1.8% of alkylphenol polyoxyethylene, 0.4-0.8% of alpha-alkenyl sodium sulfonate, 0.3-0.6% of sodium xylene sulfonate, 0.2-0.3% of thiourea, 0.5-1.0% of sodium carbonate and the balance of deionized water;

the invention also provides a specific preparation method of the water-based metal degreasing agent, which comprises the following steps:

(1) weighing raw materials of each component according to a formula;

(2) adding the raw materials of the components in the step (1) into deionized water;

(3) and (3) stirring the mixture obtained in the step (2) at room temperature for 30 minutes to obtain the compound.

In certain embodiments of the present invention, the composition comprises the following components, by mass:

1.2 percent of alkylphenol polyoxyethylene, 0.4 percent of alpha-sodium olefin sulfonate, 0.5 percent of sodium xylene sulfonate, 0.2 percent of thiourea, 0.8 percent of sodium carbonate and the balance of deionized water.

In certain embodiments of the present invention, the composition comprises the following components, by mass:

1.4% of alkylphenol polyoxyethylene, 0.5% of alpha-sodium olefin sulfonate, 0.3% of sodium xylene sulfonate, 0.27% of thiourea, 1.0% of sodium carbonate and the balance of deionized water.

In certain embodiments of the present invention, the composition comprises the following components, by mass:

1.6 percent of alkylphenol polyoxyethylene, 0.8 percent of alpha-sodium olefin sulfonate, 0.6 percent of sodium xylene sulfonate, 0.28 percent of thiourea, 0.5 percent of sodium carbonate and the balance of deionized water.

In certain embodiments of the present invention, the composition comprises the following components, by mass:

1.8 percent of alkylphenol polyoxyethylene, 0.6 percent of alpha-sodium olefin sulfonate, 0.4 percent of sodium xylene sulfonate, 0.3 percent of thiourea, 0.7 percent of sodium carbonate and the balance of deionized water.

Compared with the prior art, the invention has the following advantages:

1. the detergent has excellent washing effect at normal temperature;

2. the formula has low alkalinity and small corrosivity to metal, and is particularly suitable for non-alkali-resistant metal;

3. the formula is green and environment-friendly, and the emission is not limited.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The efficient environment-friendly water-based metal degreasing agent is particularly suitable for metals which are not alkali-resistant, and is particularly suitable for cleaning the surface of metal aluminum.