What are the factors and solutions that affect the rebound and vulcanization speed of Neoprene Velcro Cable Sleeve?

First of all, the vinyl content in the rubber is insufficient or the vinyl content of the raw rubber itself is unevenly distributed, so that the rubber does not reach the positive sulfur point during vulcanization, the vulcanization speed is too long, and the vulcanization is insufficient, resulting in poor elasticity of the rubber.

1. By increasing the total content of vinyl in the Neoprene Velcro Cable Sleeve, adding an appropriate amount of hydrogen silicone oil to the formula, reducing the amount of filler, and increasing the content of the Neoprene Velcro Cable Sleeve can solve the problem of poor resilience, The problem of slow curing speed; different types of vinyl content raw rubber and a small amount of high vinyl raw rubber can also be used to control the permanent deformation of Neoprene Velcro Cable Sleeve, find the best balance point, avoid neoprene The brittle case of the rubber velcro cable sleeve, thereby improving the elasticity of the Neoprene Velcro Cable Sleeve. Because the compound is acidic due to the acidity of the silica itself and the acidity of the structure control agent, the acidic compound has a delayed effect on vulcanization, and the high temperature resistance is also reduced.
2. It is also possible to increase the acid content of the Neoprene Velcro Cable Sleeve by adding appropriate weak alkaline substances. The pH value of the Neoprene Velcro Cable Sleeve is generally in the neutral or slightly alkaline range, which is beneficial to improve the elasticity and vulcanization speed.
3. Raw rubber with narrow molecular weight distribution and certain volatility can be selected to improve the demoulding rate of Neoprene Velcro Cable Sleeve and reduce the amount of plasticizer; the surface of white carbon black is treated with alkoxysilane and mixed with hydroxyl silicone oil With the use of. The two-step method is used to make the silica molecules and raw rubber molecules have a certain combination reaction time, and the structure control agent can be reduced by vulcanization to improve the resilience and vulcanization speed of the Neoprene Velcro Cable Sleeve.
In addition, establishing a standard curing curve for each compound is also a means to control the stable production quality of the compound.