In the continuous evolution of materials science, the performance optimization of silicone rubber has become a core task to enhance its application value. Researchers start from the source of molecular design and combine advanced processing technologies to comprehensively explore effective strategies for improving the performance of silicone rubber.

At the molecular design level, the performance of silicone rubber can be directionally optimized through precise regulation of its main chain and side groups. In the optimization of the main chain structure, special siloxane monomers are introduced to change the flexibility and regularity of the main chain. For example, when fluorine - containing siloxane monomers are introduced into the polydimethylsiloxane main chain, the strong electronegativity of fluorine atoms not only enhances the chemical stability of the main chain but also improves the chemical corrosion resistance and low - surface - energy characteristics of the material, making it more advantageous in harsh environment applications such as the chemical industry and the ocean. Regarding the modification of side groups, introducing functional groups with specific functions, such as side groups containing polar groups like amino and carboxyl groups, can significantly improve the surface activity and adsorption properties of silicone rubber. This shows good prospects in the biomedical field, such as in cell culture scaffolds and drug - release carriers. It helps with cell adhesion and growth, as well as achieving precise drug release.
In terms of cross - linked network construction, the rational selection of cross - linkers and cross - linking methods has a significant impact on the performance of silicone rubber. Although traditional peroxide cross - linking is widely used, there is room for improvement in cross - linking efficiency and cross - linking uniformity. The new hydrosilylation cross - linking reaction, with the efficient catalytic effect of platinum catalysts, can achieve more precise and uniform cross - linking, forming a regular and stable cross - linked network. This optimized cross - linked structure endows silicone rubber with higher tensile strength, better elastic recovery performance, and excellent fatigue resistance, enabling it to perform well in application scenarios with frequent dynamic loads, such as the inner linings of automobile tires and industrial conveyor belts, and extending the service life of products.
The innovation of processing technology also provides strong support for the performance improvement of silicone rubber. In the molding process, advanced injection molding technology can manufacture high - precision and complex - shaped silicone rubber products by precisely controlling temperature, pressure, and injection speed. In the microelectronics field, for the silicone rubber components used in chip packaging, the injection molding process ensures the accuracy and consistency of product dimensions, guaranteeing the electrical performance and mechanical stability of the chip after packaging. In addition, the rise of 3D printing technology has brought a new revolution to silicone rubber processing. Driven by digital models, 3D printing can customize the production of silicone rubber products with complex internal structures, such as bionic - structured flexible robot joints and high - efficiency heat - management components, giving full play to the flexibility and functional characteristics of silicone rubber and meeting the needs of different industries for personalized and high - performance products.



High Temperature Resistance Silicone Rubber