Definition of rubber accelerator
Rubber accelerator is a kind of high elastic polymer compound (molecular weight is generally above 100,000), so it has high elasticity that other materials do not have, so it is also called elastomer.
2. The basic characteristics of rubber accelerator
1. Flexibility
2. It has the function of shock absorption and buffering
3. Large dependence on temperature
4. With electrical insulation
5. There is aging phenomenon
6. Small specific gravity, low hardness and good flexibility
Three, raw rubber natural rubber source
1. Wild rubber: rubber produced from wild trees and plants;
2. Cultivated rubber: mainly Hevea rubber tree;
3. Rubber grass rubber: 150-200KG per hectare;
4. Eucommia gum: extracted from the roots and stems of the branches and leaves of the Eucommia tree. No elasticity at room temperature, high softening point, high specificity, and good water resistance.
Four, five systems composed of formula
1. Main material
2. Soften the growth rate system:
Reduce the viscosity of the rubber compound, improve the processing performance, and reduce the hardness of the finished product.
3. Vulcanization system
Cross-link the rubber linear house to form a spatial network structure to improve performance and stabilize shape.
4. Reinforce the filling system
Improve the mechanical properties of rubber, improve the performance of processing technology, and reduce costs.
5. Protection system
Delay rubber aging and prolong service life.
