Large particle size silica sol has excellent saturating function

The large particle size silica sol product has only been developed in recent years. The key technology for preparing this kind of coating is to remove the water-soluble sodium ions in water glass with a special method of high-concentration silica sol. In fact, there are many kinds of preparation of this product There are methods for you to choose. Next, let’s follow the editor to learn about it. I hope that the introduction of this article can help us.

Method 1. Ion exchange method: Dilute the water glass with water, and then pass ion exchange to remove the sodium ions and other impurities in it, then filter, heat and concentrate to a suitable density to make silica sol.

Method 2. Electrodialysis method: It uses the dialysis of metal ions under the action of an electric field by a semi-permeable membrane to remove impurities such as alkali metal ions in the water glass and obtain a pure silica sol.

Method 3. Acid neutralization method: Dilute the water glass solution and add acid to neutralize it, then separate the resulting sodium salt by precipitation, and then alkalize the polysilicic acid to obtain silica sol.

These are the most common production methods for large particle size silica sol products. Among them, the ion exchange method is commonly used. The editor has always believed that with the development of science and technology in my country, the development and production of products will definitely get better and better. If you want to know more relevant common sense, please continue to pay attention to the official website of Zhejiang Delixin Micronano Technology Co., Ltd.

In many industries, large particle size silica sol exists as a running-in agent. Whether it is used as a binder or other scales, there are often large particle size silica sols. The wide application of large particle size silica sol is inseparable from its own characteristics, among which there are three important characteristics.

Large particle size silica sols have excellent saturating properties and can be incorporated into many materials. The large particle size silica sol is applied to the building materials to increase the firmness of the building materials, and it can also be used in the range of mechanical polishing.

Secondly, large particle size silica sol has excellent heat resistance, so it is often added to some heat resistance materials. Compared with silica sol, some other materials on the market have much poorer heat resistance. Since silica sol itself has good heat resistance, it can greatly improve the heat resistance function of the material, improve the applicability of the coating in all aspects, and then reduce the occurrence of fire.

Silica sol contains a substance called thermal silica, which is a very good adhesive and gives the product excellent adhesion. Therefore, silica sol is often doped in some other materials to increase the adhesion and stability of the material.