Mixing is to make the mixture evenly distributed in the raw rubber and refine it into mixed silicone rubber. After mixing, silicone rubber and compounding agent play physical and chemical roles at the same time, so as to form a new structure.

When mixing silicone rubber, it will be difficult to disperse. What is the reason for this problem? How to deal with it? Just 4 moves to get it done easily!

Cause analysis

Silicone rubber compound is a complex system. Poor dispersion is caused by many reasons. It is necessary to analyze the specific situation. Here are some main reasons for your reference.

1. The dosage of mixed silicone rubber structure is less

2. The hydroxyl content in the structural agent is too low

3. Raw rubber has high molecular weight and narrow molecular weight distribution

4. There are micro crosslinked silicone rubber raw rubber in the mixed silicone rubber raw rubber

5. Silica is out of proportion to the amount of additives

6. The opening or kneading temperature is too low

handle

1 add structural agent

2 select raw silicone rubber with uniform molecular weight distribution

3. When feeding, it shall be added in proportion to the structural agent

4 properly increase the opening or kneading temperature