Opportunities for the development of the fiberglass composite industry in the 5G era

 

  What 5G brings us is the transmission speed beyond optical fiber (Mobile Beyond Giga), the real-time capability beyond industrial bus (Real-Time World), and the connection of all-online (All-online Everywher), 5G will open an era full of opportunities.

 

  From the perspective of 5G construction requirements, 5G will adopt the "macro station + small station" network coverage model. The previous base station upgrades will bring a round of reconstruction of original base stations and construction of new base stations. The massive growth of 5G base stations will simultaneously drive a substantial increase in the application of components such as PCBs, antenna oscillators and filters. In 5G base stations, printed circuit boards will be widely used as the most basic connection device.
 
  The substrate material widely used in the PCB industry is fiberglass fabric reinforced epoxy substrate FR-4 (epoxy glass fiber cloth copper clad laminate), which is made of one or more layers of glass fiber cloth impregnated with epoxy resin. constitute. Fibreglass woven cloth and special resin are one of the important raw materials of PCB. Fiberglass woven fabric acts as a reinforcing material to insulate and increase strength; as a filling material, special resin acts to bond and improve the performance of the board.

 

 

Plastic antenna vibrators are promising

  The antenna element is the core component of the antenna. As the main component of the antenna, the antenna vibrator is mainly responsible for amplifying the signal and controlling the signal radiation direction, which can also make the electromagnetic signal received by the antenna stronger.
 
  In order to cope with the changes of new 5G antennas, a new process has appeared in the market - 3D selective electroplating plastic vibrator solution. The so-called plastic antenna vibrator is made of modified plastic materials containing organometallic compounds, and the complex 3D three-dimensional shape is manufactured at one time by injection molding, and then the plastic surface is metallized by special technology. While the plastic vibrator ensures that the antenna meets the performance of 5G electrical appliances, the weight of the product is greatly reduced, the dangerous process steps are reduced, and the cost is also saved.
 
  In addition to being very light in weight, the 3D plastic vibrator can also meet the precision requirements that cannot be achieved by sheet metal and die casting processes. Injection molding and selective electroplating are both very high-precision processes. Combining them together can ensure that the accuracy of the antenna vibrator meets the requirements of high-frequency scenarios above 3.5G.

 

Composite communication towers and radomes
 
  Tall communication towers are mostly steel structures, but corrosion is a big problem, and fibra de vidrio materiales can solve this problem. Fiberglass reinforcements are relatively light, using fastener-free connection technology, the individual components of the tower structure can be assembled quickly, no metal bolts are required during the assembly process, and the installation is easy, and the weight of the entire tower is reduced.
 
  The radome should have good electromagnetic wave penetration characteristics, and mechanical properties should be able to withstand the erosion of external harsh environments such as storms, ice and snow, sand and solar radiation. In terms of material requirements, the dielectric constant and loss tangent at the operating frequency are required to be low, and sufficient mechanical strength is required.
 
  Generally speaking, inflatable radomes are usually made of polyester film coated with Hypalon rubber or neoprene; rigid radomes are made of fibreglass reinforced plastic; sandwiches in sandwich structures are mostly honeycomb cores or foam plastics.
 
  Under the 5G trend, composite materials with superior performance have become a popular antenna cover material. Glass fiber composite material can play the role of insulation and anti-corrosion, lightning protection, anti-interference, durability, etc., and the wave transmission effect is very good.

 

Mobile phone back cover: PC/PMMA plastic composite material is preferred
 
  In the 5G era, new requirements for the structure and shape of mobile phones, such as miniaturization, ultra-thinness, and full screen, all require new technology and material support. The demand for functions such as wireless charging and NFC has accelerated the demetallization of the back cover of mobile phones, driving the market size of PC/PMMA co-extruded composite sheets to increase significantly.
 
  In the 5G era, more stringent requirements have been put forward for 5G application equipment materials. Since 5G uses metal-sensitive millimeter waves, using a metal casing will shield the signal. With its superior performance, glass fiber reinforced thermoplastic has become a trendy choice for mobile phone back covers.
 
  Among them, the most popular is PC/PMMA composite sheet. This material is made by co-extrusion of PMMA and PC (non-alloy material), including PMMA layer and PC layer. The MMA layer can reach a pencil hardness of more than 4H after hardening, which ensures the scratch resistance of the product, while the PC layer can ensure that it has sufficient toughness and the overall impact strength.

 

Graphene: An ideal thermal and heat-dissipating material for 5G devices
 
  With high frequency, the upgrade of hardware components, and the exponential increase in the number of networked devices and antennas, electromagnetic interference between devices and within the device itself is ubiquitous, and the harm of electromagnetic interference and electromagnetic radiation to electronic devices is also becoming more and more serious.
 
  For this reason, more and more electromagnetic shielding and thermal conduction devices will be added to the design of electronic products. Therefore, the role of electromagnetic shielding and heat dissipation materials and devices will become more and more important, and the demand will continue to grow in the future.

  Hebei Yuniu Fiberglass Manufacturing Co., Ltd. is a glass fibre materials supplier with more than 16 years of experience and 8 years of export experience, which can provide you with high-quality glass fiber composite materials.