RFID transponder coil and manufacturing method thereof
A technology of transponders and coils, applied in the field of RFID transponder coils and its production, can solve the problems of inability to customize in small batches, and achieve the effects of fast and small batch production, simple process, and easy control of process conditions
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Embodiment 1
[0030] Embodiment 1, as figure 1 , 2 As shown, an RFID transponder coil includes a substrate 1 and a conductive circuit 2, the conductive circuit 2 is printed on the surface of the substrate 1 by carbon powder with a shell-core structure, and the substrate 1 is made of plastic film or cardboard. The thickness of the substrate is 0.05-0.2mm, and the shape and structure of the conductive circuit 2 is designed according to requirements, which is exactly the same as the conductive circuit made by the printed circuit method. The printing is to fix the toner with shell-core structure transferred onto the substrate 1 on the substrate 1 at high temperature to form the conductive circuit 2 .
[0031] The carbon powder of the core-shell structure is made of the following raw materials in parts by weight:
[0032]
[0033] The following examples 2-11 are specific implementations using different raw materials, and the following raw materials can be specifically selected in each embod...
Embodiment 2
[0041] Embodiment 2: The structure of the RFID transponder coil is the same as that of Embodiment 1, and will not be repeated here. The RFID transponder coil uses the following core-shell structure toner to print conductive lines.
[0042] A carbon powder with a shell-core structure, made of the following raw materials in parts by weight:
[0043]
[0044]
[0045] Preparation of carbon powder with core-shell structure:
[0046] (1) Dispersion and emulsification:
[0047] The preparation of mixture emulsion for core: 21 parts by weight of conductive carbon black, 8 parts by weight of polypropylene wax with a Tg temperature (glass transition temperature) of 61 ° C, 0.8 parts by weight of sodium tetradecylbenzenesulfonate and 140 parts by weight Parts of polyester resin was added to 80 parts by weight of methyl ethyl ketone, and dispersed for 1 hour with an emulsifying device under high-speed shear. Keep the temperature at about 30° C., add 150 parts by weight of deioni...
Embodiment 3
[0053] Embodiment 3: The structure of the RFID transponder coil is the same as that of Embodiment 1, and will not be repeated here. The RFID transponder coil uses the following core-shell structure toner to print conductive lines.
[0054] A carbon powder with a shell-core structure, made of the following raw materials in parts by weight:
[0055]
[0056] Preparation of carbon powder with core-shell structure:
[0057] (1) Dispersion and emulsification:
[0058] Preparation of mixture emulsion for core: 8 parts by weight of polypropylene wax with a Tg temperature of 61° C., 0.8 parts by weight of sodium tetradecylbenzenesulfonate and 120 parts by weight of conductive polystyrene resin are added to 80 parts by weight of butyl In ketone, use an emulsifying device for high-speed shear dispersion for 1 hour. Keep the temperature at about 30° C., add 150 parts by weight of deionized water for emulsification, and obtain a mixture dispersion emulsion.
[0059] Preparation of ...
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