Optimization of the Rubber Matrix Composition RubCon for Strength

Optimization of the Rubber Matrix Composition RubCon for Strength 

The evaluation of RM optimal composition was carried out by varying of three parameters the amount of sulfur (s), the amount of accelerator (t), and the amount of the activator (z) in RM, whereas the efficiency functions are compression and bending strength. 

The amount of PBN rubber in the experiment was 100 mass parts the content of other components was CaO (5 mass parts), filler (87.5 mass parts), sand (300 mass parts), and coarse aggregate (680 mass parts). 

The regression analysis of results of the experiment provided the following equations  

The results of the experiment showed that sulfur and vulcanization activators had the most influence on the change of durability, while that of the accelerator system is less important. The increase of sulfur content increases durability against compression, but decreases durability against bending. The interactions of the sulfur accelerator and sulfur activator have similar influence. 

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