Principles Of Rubber Formula Design

1. Principles of rubber formula design:

(1) According to the application conditions of the product, such as temperature, medium, stress and other special requirements, first select the appropriate type of rubber and compounding agent to ensure that the most physical and mechanical properties are obtained; 

(2) Special attention should be paid to formula design The feasibility of the production process, such as the ease of mixing the rubber compound, the ease of dispersibility of the material, the fluidity of the material, the surface finish of the extruded product, etc.;

(3) Before ensuring the performance of the rubber material and the feasibility of the processing technology, try to reduce the material cost, accelerate the vulcanization rate, and improve the production efficiency;

(4) The use of raw materials that pollute the environment should be avoided as much as possible to reduce environmental pollution and protect the health of operators;

(5) Special attention must be paid to the interaction between various compounding agents. Some compounding agents can form a synergistic effect. For example, accelerator D can enhance the protective function of antioxidant MB, and peroxides are very easy to interact with each other at vulcanization temperature. Active hydrogen-containing substances are lost in reaction, so when using peroxide vulcanization, the use of active hydrogen-containing complexing agents, such as amine antioxidants, stearic acid, etc., should be avoided as much as possible.

All in all, in formula design, special attention should be paid to the best balance of physical and mechanical properties of the rubber compound, production and processing performance and material cost. At the same time, special attention should be paid to factors such as environmental protection and safety.

Rubber formula classification

There are tens of thousands of kinds of rubber products. It is not scientific to classify the formula according to the product, and it is more reasonable to classify according to the performance. For example, when the wear resistance index is used as the first indicator formula, it is the first wear resistance for which product is used. Oil resistance, acid and alkali resistance. 

And so on and so on. It is also unscientific to classify raw rubber by its main properties. In the existing data, with the advancement of science, it is often the use of blends of several new materials and grafting techniques to obtain low-cost, superior-performance formulas. This is also crucial in the modern economic commodity competition. Therefore, the rubber formula has the strongest decisive function between the value engineering of rubber industrial products and enterprise benefits.