In the leather industry, magnesium oxide, as an important chemical auxiliary agent, plays a key role as an alkali agent. With its unique chemical properties and physical properties, it plays a vital role in the leather preparation process, affecting the quality, performance and appearance of the leather. Messi Biology will discuss in detail the application of magnesium oxide as an alkali agent in the leather preparation process and its mechanism of action.
1. Basic characteristics of magnesium oxide
Magnesium oxide (MgO) is a white or light yellow powder material with a high melting point and boiling point. It is an alkaline oxide that can react with water to form magnesium hydroxide and has a strong alkalinity. In addition, magnesium oxide also has good thermal stability and chemical stability, and can maintain stable performance under high temperature and acid-base environment.
2. Application of magnesium oxide in leather preparation
In the leather preparation process, magnesium oxide is mainly used as an alkali agent. Its main function is to promote the tanning and softening process of leather by adjusting the pH of leather. Specifically, the role of magnesium oxide in the leather preparation process is mainly reflected in the following aspects:
Adjusting pH: In the leather preparation process, the control of pH has an important influence on the quality and performance of leather. As an alkaline oxide, magnesium oxide can effectively neutralize the acidic substances in leather and adjust the pH of leather to keep it within an appropriate range. This helps to promote the tanning and softening process of leather and improve the softness and comfort of leather.
Promote tanning: Tanning is a key link in the leather preparation process, which can make leather have good water resistance and corrosion resistance. As an alkali-raising agent, magnesium oxide can promote the combination between tanning agent and leather fiber during the tanning process and improve the tanning effect. At the same time, magnesium oxide can also react with metal ions in the tanning agent to form stable compounds, further improving the water resistance and corrosion resistance of leather.
Soften leather: In the leather preparation process, softening treatment is an important step to make leather soft. As an alkali-raising agent, magnesium oxide can accelerate the expansion and relaxation of leather fibers during the softening process, making the leather softer. In addition, magnesium oxide can also react with proteins in leather, change the structure and properties of proteins, and further improve the softness and comfort of leather.
3. Advantages of magnesium oxide as an alkali extracting agent
Compared with other alkali extracting agents, magnesium oxide has the following advantages:
1, High efficiency: Magnesium oxide has strong alkalinity and can quickly neutralize acidic substances in leather and adjust the pH of leather. This makes magnesium oxide highly efficient in the leather preparation process.
2, Stability: Magnesium oxide has good thermal stability and chemical stability, and can maintain stable performance under high temperature and acid-base environment. This makes magnesium oxide have a long service life in the leather preparation process.
3, Environmental protection: As an inorganic compound, magnesium oxide is non-toxic and harmless and will not pollute the environment. At the same time, the waste generated by magnesium oxide in the leather preparation process is also easy to handle and meets environmental protection requirements.
4. Application prospects of magnesium oxide as an alkali extracting agent
With the improvement of environmental awareness and the continuous development of the leather industry, the performance and quality requirements of alkali extracting agents are getting higher and higher. As an efficient, stable and environmentally friendly alkali extracting agent, magnesium oxide has broad application prospects in the leather preparation process. In the future, with the advancement of science and technology and the deepening of research, the application of magnesium oxide in the field of leather preparation will be more extensive and in-depth.
In summary, magnesium oxide produced by Messi Biology as an alkali agent in the leather preparation process has unique chemical and physical properties, and plays an important role in adjusting the pH of leather, promoting tanning and softening, etc. At the same time, magnesium oxide also has the advantages of high efficiency, stability and environmental protection, and has broad application prospects in the field of leather preparation.