What are the factors that affect the elasticity of Automotive Wiring Harness Protection Sleeve?

The editor of some Braided Sleeve reported that the Automotive Wiring Harness Protection Sleeve produced by the manufacturer have poor resilience. The creases can be clearly seen when the product rebounds after being folded. What is the problem and how can it be improved?

Some people will say that when the amount of silica is smaller, the resilience will be better, but the tensile strength will not be reached, but it is of no use. The method of tearing down the east wall to repair the west wall is unreliable. Below, the editor of Braided Sleeve will talk about the reasons why the elasticity of Automotive Wiring Harness Protection Sleeve is not good?
1. Second stage vulcanization.
2. Replace with white carbon black. Generally speaking, the Automotive Wiring Harness Protection Sleeve has good resilience! Raw rubber, white carbon black, double 2.5. Did you add other things? Is the amount of raw materials used unreasonable? The resilience of silicone should be very good.
To solve the problem of poor elasticity of the Automotive Wiring Harness Protection Sleeve, you can try the following methods.
1. You can directly purchase the Braided Sleeve compound and specify the one that needs better elasticity. This is very important for making loops;
2. It is best not to use zinc stearate, as it will affect the compression deformation performance;
3. Adjust the vulcanization conditions and extend the time appropriately, generally 6 to 8 minutes at 165~170℃;
4. It is best to use surface-treated silica as the reinforcing agent. General precipitated silica can only satisfy ordinary extrusion molding products.