Industrial media metal cleaning defoamer solution

Customer type

1. Customer information: Indonesia Kerun Industrial Media Co., Ltd. is a company specializing in the research and development of new environmentally friendly process materials for industrial use. Their company is mainly engaged in heat treatment quenching media, industrial cleaning anti-rust materials, and metal (non-metal) surface treatment materials.

2. Sample information: fully synthetic cutting fluid

3. Customer requirements:

①　The defoamer should not affect the appearance of the original cleaning agent;

②　The defoamer should not agglomerate or float in the cleaning agent;

③　The defoaming durability of the defoamer is better, at least for more than one month, and it is ideal to keep it for three months.

④　First add the defoamer to the cleaning agent, and then press the cleaning agent: water = 3:97 to dilute, to see the defoaming and anti-foaming effect.

⑤　Sample information: metal cleaning agent

Principle and analysis of defoaming

1. Analysis of the cause of blistering:

When cleaning objects, the aqueous solution should be added with cleaning agents or detergents or degreasing agents. The basic materials of cleaning agents or other detergents are generally surface active, sometimes strong alkalis or strong acids. In some applications, medium and high temperature conditions are required. It is usually stirred or sprayed during cleaning. With the above, the probability of foam appearing is quite large, but the height of the foam is different due to different foaming materials.

2. The hazards of blistering:

The appearance of foam has many hazards, for example, it causes the tank liquid to overflow, wastes materials, and increases costs; too much foam will stick to the surface of the strip, causing the product to be unclean and increasing the chance of defective products; in some cases, it needs to be cleaned again. The processed products increase the risk of non-compliance and other bad situations.

3. Analysis of metal cleaning defoamer scheme

In the foaming liquid experiment defoaming and anti-foaming experiment, the following are the experimental steps:

Note: The foaming liquid is alkaline PH: l4, at room temperature, the same content is the product.

①　In the two containers with foaming liquid, respectively add 0.01% of the market-purchased and Nanhui silicone defoamer B-O80

② 　Carry out the standard shaking test (AST). The results of this experiment show that in the first 15 to 20 shakes, the two antifoaming agents exhibited high-efficiency defoaming performance. Regardless of outcome.

③　The defoaming time increases rapidly. After 60 shakes, the defoaming time of the defoamer purchased on the market has exceeded 60 seconds. The defoaming time is long, which means that the foam suppression is not good. Our factory only needs 30 seconds. second. From the data point of view, our defoamer B-O80 wins, but in order to be more certain, we do the defoamer resurrection test.

④　In the measuring cylinder that just failed, we added 0.01% of the defoamer purchased from the market, and now the performance of the defoamer has been restored. Then we repeated the experiment from the beginning and found that the second 45 shakes After that, the defoaming ability decreased. Nanhui's defoamer B-O80 still maintains high-efficiency defoaming properties.

⑤　From the results, it can be seen that the defoamers purchased on the market are not suitable. The effect of the cleaning system is not satisfactory, and the defoaming and foam suppression are not very good.

Solve the cleaning and foaming plan

The metal cleaning defoamer is refined by a variety of special polyethers through a composite process. It has good defoaming and anti-foaming and high-shear resistance functions. Adding to the transparent cleaning agent does not affect the appearance of the cleaning agent, does not bleach oil, and does not break Milk, non-floating, and will not produce residual hanging on the wall. No adverse effects on post-processing.

Comparison of defoaming test

Formula selection

Name of defoamer: metal cleaning defoamer

The ingredients are as follows: (For details, please consult the fine chemical engineer of Nanhui Defoamer: 0086 134 2860 1010)