The silicone rubber industry has a tricky problem, which is that after using silicone products for a period of time, white and foggy substances suddenly appear on the surface. This phenomenon seems serious, but after erasing, it can maintain its original color. This phenomenon mostly occurs in some products with large structures and long vulcanization time. In the industry, this phenomenon is called frosting and fogging. Is this phenomenon present in the silicone products you purchased?

There are many whitening phenomena in silicone products, which are only caused by process errors of silicone product manufacturers or compatibility issues in raw materials. The main reason for applying white coating in raw materials is the conflict between silicone oil and other compounds during the secondary mixing process, such as adding appropriate internal demolding to the raw materials to extend the vulcanization time. This phenomenon is a common release agent that can improve release rate and production efficiency, while useless doses can cause the product to turn white!

In addition to the errors in raw materials and process methods, the detailed treatment during the operation will also bring whitening to the products. Excessive spray of mold release agent on the production line may cause frosting and vomiting, and this phenomenon may also be caused when the temperature is not controlled evenly. In addition, the aging of silicone products also has certain factors, as the performance of raw materials is not outstanding. When using the environment and temperature difference, the whitening frequency is higher!

In response to the above phenomenon, silicone product manufacturers should first understand the parameters of the raw materials before processing, understand which substances can be added and which substances cannot be added. The final processing conditions of the machine need to be clarified in all aspects! The main issue is to control the addition of substances in the raw materials, such as curing agents, colorants, silicone oil, etc. We must find out if it is possible to add and test them after blending!

Silicone product manufacturers do need to understand the parameters of the raw materials before processing, because different silicone materials have different characteristics and uses.

Firstly, silicone can be classified into different types based on its pore size, such as macroporous silicone, macroporous silicone, B-type silicone, and microporous silicone. These different types of silicone have different microporous structures and application areas. For example, macroporous silica gel and macroporous silica gel are mainly used in fields such as catalyst carriers, gas separation, and adsorbents, while microporous silica gel is more suitable for precision separation and purification.

How to solve the problem of white and foggy substances in silicone products

Secondly, silicone product manufacturers also need to understand the chemical composition and properties of the raw materials, such as the chemical stability, thermal stability, adsorption performance, and mechanical properties of silicone. These performance parameters are crucial for the quality and performance control of silicone products during the production process. For example, the chemical stability of silicone has a significant impact on its corrosion resistance, oxidation resistance, and weather resistance, while mechanical properties determine the strength, toughness, and wear resistance of silicone products.

In addition, silicone product manufacturers also need to understand parameters such as particle size distribution and purity of raw materials. These parameters have a significant impact on controlling the microstructure and properties of silicone products. For example, particle size distribution determines parameters such as pore size and specific surface area of silicone products, while purity directly affects the quality and performance of silicone products.

Finally, silicone product manufacturers also need to understand the production process and manufacturing methods of raw materials and other parameters. These parameters have a significant impact on controlling the manufacturing process and quality of silicone products. For example, the formula and proportion of raw materials, processing temperature and time can all have an impact on the performance and quality of silicone products.

In summary, understanding the parameters of raw materials is crucial for silicone product manufacturers. Only by fully understanding the characteristics and uses of raw materials can we better control the manufacturing process and quality of silicone products, thereby meeting the needs of different fields.