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    American Asia Nonwoven Company: Developing Nano Meter Microfiber Device

    2010/11/18 13:26:00 62

    American Asia Nonwoven Fabric

      

    American Asia nonwoven fabric

    Recently, we have developed an environmental friendly polymer for spunbonded melted nonwovens.

    Meyer produces nanofiber membranes through electrospinning and spraying technology. A unique nano electro spinning equipment will be installed in its Dongguan factory to produce ultrafine fibers with diameters of 50~800 nm.

    In addition, Maya also considered building a company with Shanghai Kunshan Investment Co., Ltd. in China to develop another nano material product.

    Nano spraying

    The finishing technology is also being studied.


    Review:


    For hundreds of years, artificial fibers refer to raw materials for clothes and ropes.

    Information Age

    The meaning of fiber becomes the glass filament carrying data in the communication network.

    But for Joel Fink, an associate professor of Electronics Research Laboratory at Massachusetts Institute of Technology, the fibers used in textiles or fibers are too passive.

    Over the past ten years, his laboratory has been working on developing more advanced fibers to enable fiber fabrics to interact with their surroundings.


    In a recent issue of the journal Nature and materials, Fink and his collaborators announced a landmark new functional fiber: a fiber that detects and produces sound.

    The application of this fiber includes: it can be made into clothes for microphone, can capture speech or monitor body function, or make a fine single filament that can measure blood flow or pressure in capillaries.


    New fiber contains asymmetric molecular plastic.


    Ordinary optical fibers are made from "prefabricated" products, and the prefabricated products are a large cylindrical single material that can be heated, drawn and cooled.

    In contrast, the fiber developed by Fink laboratory is a careful geometric arrangement of several different materials, enabling them to remain intact in heating and stretching processes.


    The core of the new acoustic fiber is a plastic commonly used in microphones.

    The fluorine content in this plastic enables researchers to ensure that their molecules are in an unbalanced state, that is, fluorine and hydrogen atoms are on one side, even during heating and stretching.

    The asymmetry of this molecule causes plastic to have "piezoelectricity", which means that when an electric field is applied to it, it will change its shape.


    In traditional piezoelectric microphones, the electric field is produced by metal electrodes.

    However, in a fiber microphone, the stretching process causes metal electrodes to lose their shape.

    Therefore, researchers substituted graphite conductive plastics.

    Conductive plastics will produce a dense liquid when heated, thus maintaining higher viscosity than metal electrodes.

    This not only prevents the material from mixing, but also more importantly, it also gives the fibers a normal thickness.


    When the fiber is stretched, the researchers need to put all the piezoelectric molecules in the same direction. At that time, a strong electric field (20 times stronger than the lightning field causing lightning) is needed. Because everywhere in the fiber is very narrow, it produces a tiny lightning ball that destroys the surrounding matter.

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