Progress in Preparation Technology of Thermoplastic Wave-Absorbing Composite Materials
In response to the diverse specifications and types of electromagnetic wave-absorbing components required in current military and civilian electronic fields, some of which demand complex shapes, high requirements are imposed on the designability of materials. Meanwhile, indicators such as low cost, lightweight, easy processability, and excellent wave-absorbing performance need to be considered. Currently, the wave-absorbing materials available on the market mainly include rubber-based and coating-based types, neither of which can meet the aforementioned comprehensive requirements. The thermoplastic resin-based wave-absorbing material independently developed by Haojing Electronics is tailored to satisfy the demands of wave-absorbing structural parts in dual-use (military and civilian) electronic fields, featuring strong plasticity, superior electromagnetic properties, low cost, and lightweight characteristics.
Compared with coatings, rubber, and cement, the addition amount of wave absorbers in resin-based composite materials is often limited. Resin-based composites with high absorber content face challenges such as high cost, poor processability, and insufficient mechanical strength, while those with low absorber content exhibit inferior wave-absorbing performance. Starting from the fundamental principles of composite material preparation, Haojing Electronics has optimized the development of plastic masterbatches and rapid-prototyping wave-absorbing products with excellent mechanical properties, molding processability, and wave-absorbing performance through aspects including substrate selection and modification, absorber selection and modification, processing formula adjustment, and molding process optimization.
