NEWS

Understand in One Article: The Functions, Principles, and Applications of Coupling Agents


Release time:

2026-02-06

In response to the challenges posed by future 5G base stations and 6G terahertz communications, the dielectric loss (Df) of clad laminates (CCLs) has entered a critical phase of achieving ultra-low losses. In this evolutionary process, the role of coupling agents has gone beyond mere basic adhesion and is now deeply evolving toward "loss control" and "interface purity."

Facing the challenges of future 5G base stations and 6G terahertz communications, the dielectric loss (Df) of clad laminates (CCLs) has entered a critical phase of achieving ultra-low losses. In this evolutionary process, Coupling agent Its role has gone beyond mere basic adhesion and is now evolving in depth toward “wear control” and “interface purity.” As an important regulatory factor in low-polarity hydrocarbon resin systems, the precise application of high-performance coupling agents has become a key pathway for balancing high-efficiency signal transmission with compliance with fire safety standards. 
In terms of application innovation, the development of low-polarity, specialized coupling agents is key to achieving zero signal distortion. Traditional coupling agents tend to have strong polarity, which under high-frequency electric fields can lead to significant dipole orientation losses and significantly increase the overall loss factor of the board. The new generation... Coupling agent By optimizing the molecular structure and removing unnecessary polar groups, we have achieved an extremely high bonding efficiency while having a negligible impact on the Df value.

 Coupling agent

This “lossless coupling” technology is crucial for applications such as millimeter-wave radar and low-Earth-orbit satellite communications, ensuring that high-frequency microwave signals experience minimal energy attenuation when passing through PCB substrates, thereby enhancing the coverage and resolution of the entire communication system. 
Meanwhile, Coupling agent It also shows great potential in environmentally friendly production and functional integration. As global supply chains increasingly demand halogen-free and low-VOC-emission materials, water-based or solvent-friendly coupling agent systems are gradually maturing. In synergy with eco-friendly flame retardants, coupling agents can significantly enhance the anchoring effect of flame-retardant particles within the resin matrix, preventing the migration and loss of additives and thereby maintaining the long-term flame-retardant rating and electrical insulation properties of boards. Desytek remains committed to driving industrial upgrades through technological innovation. By delving deeply into the interfacial dynamics of coupling agents at the nanoscale, we are providing the global PCB industry with comprehensive solutions that are greener, have lower losses, and offer stronger interfacial stability. High performance. Coupling agent Each iteration represents another breakthrough in the limits of signal transmission, helping humanity step into a smarter and more efficient digital era.

Desytek New Materials We are a pioneering innovator in advanced optoelectronic materials. Our main products include: Hydrocarbon resin, high-frequency and high-speed hydrocarbon resin, crosslinking agent, coupling agent, reactive flame retardant You’re welcome to call our consultation hotline at 027-81801908 or 13971395740 (same number on WeChat). We’ll provide you with customized, professional services!

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