How to apply surfactants to building materials reasonably

2021-04-02 16:25:27

Surfactant plays an important role in the production of building materials. With the rapid development of China's construction industry, building materials as a supporting element of the construction industry has also been included in the key research and development objects. How to reasonably use surfactants in the production process of building materials, and how to research and explore the types of surfactants with high cost performance have become the important tasks of the relevant research and development personnel in China's construction industry.

And at this stage, we must clearly recognize that the domestic research on surfactants is still relatively weak, and its development field is still relatively narrow. For example, in the current process of China's industrial development, the dominant non-ionic surfactant used in industrial production is actually the development process of many foreign countries in the 20th century In other words, the research of surfactant in China is backward in the world. Because of this reason, in order to catch up with the international pace from the industrial development, we must speed up the pace of research on the application of surfactants in building materials, and promote the overall economic development of society by promoting industrial development.

The influence of surfactant structure on the size of self-assembly system is very complex. For the surfactant with alkyl lipophilic group, the critical micelle concentration (CMC) of straight chain structure is lower than that of branched chain structure. The surfactant with strong molecular chain rigidity is easy to form lamellar liquid crystal and can not form micelles, while the surfactant with amphiphilic group can form double-layer microcapsules In the process of preparing nano materials with different morphologies, the choice of surfactant structure depends on the specific situation.

In general, in the synthesis of nano powder, surfactant with good flexibility of molecular chain is preferred, while in the synthesis of nanostructure, surfactant with strong rigidity of molecular chain is preferred.