High-melt polypropylene special materials are mainly used in automotive interiors, thermal insulation materials, packaging materials and other fields.
Polypropylene microporous foam material (MPP) successfully prepared as a raw material for polypropylene was applied to the 5G radome, opening a brand-new application window, further enhancing the differentiation and high-end advantages of the product, and winning The market provides strong protection. This breakthrough in the application of special materials also achieved new breakthroughs in the application of high-end new materials, improved the added value of special materials, and laid a solid foundation for building high-end brands in the industry.
The role of the radome is to protect the antenna system from the external environment (such as wind, snow, sunlight, biology, etc.), extend the life of the antenna, and at the same time need to ensure the permeability of electromagnetic waves, so the radome material should meet the dielectric properties and mechanical properties , Weather resistance, processability and weight requirements.
1. Low dielectric and low loss
While the radome plays a protective role, the dielectric properties of the material will directly affect the performance of the antenna. The absorption and reflection of electromagnetic waves by materials will reduce the signal transmission efficiency. Therefore, materials with low dielectric constant and low dielectric loss are required for radome materials, and millimeter waves are more likely to be lost, so the dielectric properties of the materials are more demanding. high. At present, it is urgent to develop low dielectric and low loss materials for the radome.
2. Lightweight
The radome material is usually fiber-reinforced resin composite material. At present, the radome is mainly made of glass fiber reinforced plastic, but the proportion of glass fiber reinforced plastic is large, which is not conducive to the lightweight design of the antenna. The new material of the radome is GPRPP, which is super-strength glass fiber reinforced. Polypropylene resin, which is 40% lighter than traditional glass fiber reinforced plastics, controls the weight of multi-band antennas within 50 kg, avoiding antenna lifting to save installation time and cost. This shows that in order to meet the design requirements of 5G antennas for light weight, integration, and miniaturization, radome materials will also be developed towards light weight.
3. Environmental protection
In recent years, as people's awareness of environmental protection has increased, the requirements for environmental protection at home and abroad have become higher and higher, and the environmentally friendly type is 5G.
Faced with the higher requirements of 5G for radome materials, companies actively research and develop materials with high cost performance, environmental friendliness, light weight, low dielectric and low loss enhancement, such as ASA, PP, PC, etc. These materials It is expected to be applied to the future 5G radome.