Preface

Rubber products are widely used in various fields because of their excellent elasticity and wear resistance. However, as the market increasingly improves product performance, toughness has become one of the important factors affecting the quality of rubber products. Against this background, this article will analyze the key additives for improving the toughness of rubber products from a professional perspective.

The definition and importance of resilience

Toughness is the ability of a material to absorb energy and undergo plastic deformation under stress. For rubber products, toughness directly affects the durability and safety of the product. Improving the toughness of rubber products can not only enhance their performance in practical applications, but also increase the market competitiveness of the product to a great extent.

Types and functions of key additives

In rubber manufacturing, adding specific additives can significantly improve the toughness of the product. Common additive types include:

• Toughening additives: such as polyvinyl alcohol (PVA) and polyurethane, which can form an elastic network structure inside the rubber to improve the deformation ability of the product.
• Plasticizers: such as phthalates (DOP), increase toughness by lowering the glass transition temperature (Tg) of rubber.
• Fillers: such as carbon black, silica, etc., after surface modification, can increase the strength of the rubber while increasing its flexibility.

Selection and proportioning of additives

The selection and use of additives need to be reasonably proportioned according to the specific needs of rubber products. Usually, in plastic compounds and rubber formulations, the proportion of toughening additives should be controlled between 10% and 30% to achieve the best toughness effect. At the same time, when used with other additives, mutual chemical compatibility must also be considered to ensure the overall performance of the rubber product.

in conclusion

Improving the toughness of rubber products is inseparable from the scientific application of additives. By rationally selecting and matching various additives, we can effectively improve the performance of rubber and enhance its competitive advantage in the market. We hope that the analysis in this article can provide valuable reference and inspiration for colleagues in related industries.