Mobile NFC absorbing material

Absorbing Materials Use and application of classified material from absorbing up classification, its use can be divided, military, commercial and civilian, absorbing materials absorbing the essence of the incident electromagnetic wave absorption or attenuation, and through the material dielectric loss so that electromagnetic energy is converted to heat or other forms of energy is dissipated. Absorbing material generally composed of the base material (binder) and the absorption medium (absorbent) composite. Absorber type can be divided into electric loss and magnetic loss, dielectric loss materials mainly rely on electronic media polarization, ionic polarization, molecular polarization or polarization interface to absorb, attenuate electromagnetic waves. Magnetic loss material mainly by hysteresis loss, domain wall resonance and magnetic aftereffect wear and tear caused by the intensification of mechanisms of absorption and attenuation of electromagnetic waves. As the nano-fine grain size to the number of atoms in the grain boundary than in the grain interior, which produce high concentrations of grain boundaries, making nanomaterials have many properties different from the coarse-grained materials. Nanoparticles have a small size effect, surface and interface effect, quantum size effect, dielectric effect and macroscopic quantum tunnel effect. Nanomaterials have a very good reason why absorbing properties, mainly for the following reasons: First, the nano material having a high concentration of grain boundaries, surface area crystal interface atoms, dangling bonds more polarization interface, easy to produce multiple scattering, in electromagnetic field radiation, due to the surface effects of nanoparticles resulting in increased atom, electron motion and magnetic, electromagnetic energy is converted to heat energy more efficiently, resulting in a strong absorbing effect; secondly, the existence of the quantum size effect of nano particles electronic energy levels split, split level spacing is in the range of microwave energy level (10-2 ~ 10-5eV), thus becoming the new absorbing nanomaterials channel; furthermore nano-ion has a larger saturation magnetic induction, high hysteresis loss and coercive force, making nanomaterials eddy current loss is high, and the use of high temperature Curie point, wide frequency absorbing properties. This makes the structure of nanomaterials nano absorbing material has an absorption bandwidth, good compatibility, quality of light and thin and so easy to meet radar absorbing materials, "thin, light, wide and strong," the requirement is a very promising, high-performance, multi-function absorber. With the possibility of modern military technology fast Meng development, the world's defense system is to detect, track and attack enemy growing, penetration ability viability military targets and weapons systems has been severely threatened. Stealth technology as a weapon system to improve survival, penetration, especially effective means of deep-strike capability, has become a set of land, three-dimensional modern warfare sea, air, space, electricity, magnetism six-dimensional one of the most important and most effective projection Anti tactical and technical means, and are highly valued around the world. Modern war on absorbing properties of absorbing materials have become increasingly demanding, the general conventional absorbing material is difficult to meet the need. Due to the structure and composition of the special nature of such nano-absorbing coatings to become a new bright spot of stealth technology. Refers to the three-dimensional nanomaterials have at least one dimension of nano-sized materials, such as films, fibers, ultrafine particles, multi-layer film, particle film nanocrystalline materials, is generally determined by the size of the 1 ~ 100nm consisting of Powder system. With the electronic and information technology, high-speed development, industry electromagnetic interference shielding and absorbing materials demand for civilian growing highly integrated original, and the original high-frequency applications, resulting in electromagnetic compatibility EMC problems hard to solve, traditional shielding materials has been unable to solve electromagnetic shielding under conditions of modern electronic information, and conventional shielding materials only prevent harassment by the reflection principle, the number of special electromagnetic environment appear "powerless", then in today's highly developed electronic information, there is no more high-end products to solve electromagnetic radiation, and electromagnetic interference (EMI) problems? Absorbing materials published an affirmative answer to this question, in the country, the Shenzhen Zhaorong soft magnetic materials Co., Ltd., through the National Defense, North mine Magnets, enterprises and co-operation, developed with leading domestic level sheet type, absorbing materials, and the derived compartment floppy disk, soft disk, ferrites and other merchandise to China's electromagnetic compatibility EMC, RFID provides sophisticated networking solutions, has made important contributions. Business Center Tel: 13450685089 Mr. Zhang QQ: 1506054061 please call to discuss anti-metal absorbing material (also referred to as the anti-metal material or absorbing material): In RFID (125KHZ, 13.56MHz) devices, back-type antenna to be integrated or attached tag close to the electronic device, the unit functions as a card reader, often due to limited space, it is inevitable to RFID (125KHZ, 13.56MHz) tags attached to the metal surface PCB board or batteries. Thus, the back label antenna excitation induced alternating electromagnetic field in the signal emitted by the role of the reader is vulnerable to a vortex metal leaving the signal strength attenuation greatly reduced, resulting in the reading process to fail. Therefore, in order to better use the card reader products, the need to increase the anti-metal products, absorbing material for improving RFID reader, tag reception sensitivity on the metal. Business Center Tel: 13450685089 Mr. Zhang QQ: 1506054061 Welcome to contact us