Filling Composite Electromagnetic Shielding Materials - Breakthrough and Development

Introduction: In recent years, with the rapid development of electronic communication technologyelectromagnetic shielding materialThe demand is also increasing. As an emerging material, filled composite electromagnetic shielding materials have attracted widespread attention due to their unique structure and superior performance. This article will introduce the preparation method, characteristics, and application prospects of filled composite electromagnetic shielding materials, revealing the charm of this material.

1. Diversity of preparation methods

Fill composite electromagnetic shielding materials with polymer resin as the matrix, add a certain amount of conductive filler, and achieve material preparation through different preparation methods. The common preparation methods currently include melt blending, solution blending, in-situ polymerization, and co precipitation. These preparation methods make it easy to operate the filling composite electromagnetic shielding material during the molding process, while also ensuring its good corrosion resistance and mechanical properties.

2. Superior performance

Fill composite electromagnetic shielding materials with conductive fillers as the core, and achieve different electromagnetic shielding performance by controlling the type and amount of conductive fillers added. The commonly used conductive fillers currently include carbon based, metal based, composite based, and polymer based. Carbon based fillers such as carbon black, graphene, carbon nanotubes, and carbon fibers have excellent conductivity and cost-effectiveness; Metal based fillers such as silver, copper, nickel, and aluminum can provide better electromagnetic shielding effects; Composite fillers such as silver plated glass microspheres, nickel plated graphene, and nickel plated carbon fibers combine the advantages of different materials and can achieve a wider range of applications.

3. Application prospects and challenges

Filled composite electromagnetic shielding materials have broad application prospects in fields such as electronic communication, aerospace, and automotive industry, but there are still some challenges. Firstly, the shielding mechanism of electromagnetic waves mainly leans towards reflection loss rather than absorption loss, which makes it difficult for materials to meet requirements in some application scenarios. Secondly, the shielding effectiveness of composite electromagnetic shielding materials mainly depends on the electromagnetic parameters and dispersion characteristics of the fillers. Therefore, how to select suitable fillers and further optimize their electromagnetic properties has become an urgent problem to be solved in the preparation process.

brief summary

Fill composite electromagnetic shielding materialAs a new type of material, it makes up for the shortcomings of traditional metal shielding materials and surface coating composite shielding materials with its easy molding, good corrosion resistance, and superior mechanical properties. By combining different preparation methods and conductive fillers, flexible control and optimization of materials can be achieved. In the future, we need to further explore the electromagnetic shielding mechanism and improve the absorption loss of composite electromagnetic shielding materials in the research and development process, in order to meet the application needs of different fields. The development prospects of filling composite electromagnetic shielding materials are promising and will undoubtedly bring more possibilities for the development of electronic communication and other related fields.