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Knowledge of waterborne resin coatings

04

2020-12

What are the advantages of waterborne epoxy ester resin coatings?

Waterborne epoxy ester resin refers to a stable dispersion system obtained by dispersing epoxy resin in the form of particles or droplets in a dispersion medium with water as the continuous phase. As the epoxy resin is a linear structure of thermosetting resin, so the construction must be added before the waterborne epoxy curing agent, chemical crosslinking reaction occurs at room temperature environment, epoxy resin curing will change the original soluble meltable nature and become insoluble infusible space network structure, showing excellent performance. So, what are the advantages of waterborne epoxy ester resin coatings?

2020-12-04

What are the advantages of waterborne epoxy ester resin coatings?

05

2020-12

The function and characteristics of the ceramic agent

How to control the quality of pretreatment is the key to stabilize and improve the quality of coating. Only the reasonable design of pretreatment process, in-depth understanding of the relevant control elements of the pretreatment process, and its reasonable control and maintenance, in order to ensure the quality of pretreatment. The quality of surface treatment before coating directly affects the service life and the important link of decorative effect. The purpose of pretreatment before coating is to remove oil, rust and other foreign matter on the surface of the substrate, provide a clean surface suitable for coating, and significantly improve the adhesion and corrosion resistance of the coating. The quality of the coating pretreatment is directly related to the quality of the coating. Many companies will choose to use ceramic agent for metal surface treatment.

2020-12-05

The function and characteristics of the ceramic agent

08

2020-12

Popularization Trend of Ceramics

With the continuous development of China's industrial modernization, in the anti-oxidation treatment of the metal industry, the industrial wastewater discharged from the traditional phosphating process contains a large amount of phosphorus, which will cause eutrophication of water bodies. Phosphating solution contains heavy metal ions, which has a strong carcinogenic effect. Therefore, the discharge of phosphorus-containing waste liquid is more and more strictly controlled, and its application is greatly limited. In order to solve these problems, the development and use of environmentally friendly non-phosphorus ceramic technology is the direction of modern development. In recent years, through continuous improvement and trial and error, the technical team has successfully solved the problem of poor corrosion resistance, complex process, low adhesion, high raw material cost and poor self-healing ability of the ceramic agent.

2020-12-08

Popularization Trend of Ceramics

11

2020-12

Can aluminum be passivated with water-based silver paste passivator?

Aluminum is a non-ferrous light metal. Aluminum and its alloys have the characteristics of high specific strength, good plasticity, good electrical and thermal conductivity, good processability and corrosion resistance. They are widely used in aerospace industry, military industry, construction, electrical, chemical, transportation and other civil fields. Due to the wide application of aluminum alloy, different application fields have different requirements for the corrosion resistance of its surface. Aluminum alloy has good corrosion resistance and can be used for many years in neutral atmosphere, natural water, certain chemicals and most foods. This is entirely determined by the passivity of the natural oxide film formed on the aluminum surface, which means that the corrosion resistance of aluminum actually depends on the formation of the surface.

2020-12-11

Can aluminum be passivated with water-based silver paste passivator?

14

2020-12

Matters needing attention in the use of water-based silver paste passivator

What is passivation? According to the American Society for Testing and Materials A380, passivation is "the removal of exogenous iron or iron compounds from the surface of stainless steel, and the removal of surface contamination by chemical dissolution, most typically with an aqueous silver paste passivation agent, but without significant impact on the stainless steel itself." In addition, it also describes passivation as "chemical treatment of stainless steel with a mild oxidizing agent (such as nitric acid solution) to enhance the spontaneous formation of a protective passivation film."

2020-12-14

Matters needing attention in the use of water-based silver paste passivator

17

2020-12

Some Knowledge Points of Chromium-free Passivator for Aluminum Alloy

Since the reform and opening up, with the rapid development of China's metal industry, the high-precision development of metal products is accompanied by the generation of waste water and waste gas noise, in which the discharge of a large number of production waste water has caused serious water pollution, which has become the key testing industry of the Environmental Protection Bureau. The metal industry is paying more and more attention to environmental protection. In order to obtain better anti-corrosion and anti-discoloration performance of metal parts, the anti-corrosion and anti-discoloration ability of the passivated workpiece is greatly improved on the original basis. Chromate passivation process is indispensable in traditional passivation treatment. Due to the use of hexavalent chromium is highly toxic and carcinogenic, harmful to the environment and human health, many countries have strictly restricted

2020-12-17

Some Knowledge Points of Chromium-free Passivator for Aluminum Alloy
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