International Conference On Industrial Textiles Held In The United States

< p > just now, at the international industrial textiles conference, which was just concluded in Florida, the staff of the International Industrial Textiles Association and representatives from various industrial textile enterprises and experts and professors gathered together. When discussing the development of industrial textiles, the new technology and new topics brought by the speakers also aroused heated debate.

The conference invited professionals to interpret the latest technology and topics of high-end products for industrial textiles. For example, the anti explosion fabric Xtegra, which is made of optical fiber technology, is expected to be used in many fields after being improved. It can choose the super conventional fabric of the initial fabric structure (strength, porosity, tensile, thickness, etc.) and control the electrical resistivity of the conductive polymer film on the surface of the fabric and the customized, so it should be used in many fields. The prototype of the acoustic cloak can be created through the mathematical model of 2D.

This newspaper has presented the results of the 3 experts with the highest degree of attention to the readers.

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< p > < strong > Xtegra leads the application range of optical fiber products to expand exponentially. < /strong > /p >

< p > < strong > David Okeeffe, President of American advanced technology Textile Co., Ltd. < /strong > /p >

In the future, Xtegra products may be used in medical textiles, but because of their completely novel concepts, it will take some time for them to be accepted by various industries. P

At present, applications for Xtegra products include seat belts, bandages, dental floss, surgical sutures, self-adjusting filters, torque measuring systems, antifungal and anti microbial clothing, tents and shelters, construction materials, etc.

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< p > usually the emergence of a new technology will completely change the way to solve an undetermined problem in the past, or solve the original intention of an undetermined market and beyond the inventor.

At present, most of optical fiber products are presented in a tubular way with multiple bundles. The products of flat fabrics are extremely rare in life. Especially, optical fiber fabrics are light, soft, comfortable, breathable, resistant to folding and energy saving. With diversified colors and price advantages, business opportunities can be derived.

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< p > < strong > test shows that the dissipation of shock wave energy is as high as 25% < /strong > < /p >.

The emergence of "P > optical fiber technology product Xtegra is such that it has a revolutionary impact on some industries (from construction industry to medical industry).

As an anti explosion fabric, the Xtegra product can automatically adjust the external force exerted on it because its power thread is wrapped in inelastic fibers.

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< p > Xtegra products were originally prepared to be made into explosive curtain materials to prevent splashing glass and other explosive fragments from pricking people, but now they are used for more purposes.

The existence of the global war on terror, various explosive devices and suicide bombers has led to lighter, better and cheaper demand for armored protective products.

Xtegra can be used in conjunction with other materials to produce products with protective properties, such as the combination of Kevlar fibers.

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The birth of < p > Xtegra has revolutionized technology, and has been introduced into the military field through explosion and ballistic testing.

In all industries, the necessary factor for progress is collaboration.

Federal buildings, embassies, troops and police are seeking better protection against bomb explosions.

Now, the government has introduced Xtegra product lines, such as tents, seat systems, anti stripping liners and bulletproof vests.

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< p > the market of anti explosion curtain is mainly some pure fabrics. These pure materials can not reduce the shock wave of explosion. Xtegra has already shown in the test that the energy dissipation of shock wave is as high as 25%.

In addition, when Xtegra is passed by some light, it is generally opaque, so it can be used for heavy curtain.

Nowadays, the demand for anti explosion curtain market is higher, and pure fabrics can no longer meet the requirements.

The plucent Xtegra products currently under development can still reduce shock waves.

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< p > < strong > the new concept of potential medical use needs to be accepted < /strong > < /p >.

< p > for some armour applications, more rigid materials are often needed.

The Department of defense and various manufacturers of protective products are testing the adhesion of multi-layer Xtegra products with epoxy resin to see if they can meet the requirements.

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The potential medical uses of < p > Xtegra include improved suture, drug delivery systems, and remotely adjusted bandages.

The US Treasury is also considering whether the next generation of Xtegra products will be woven with other materials, including optical fibers.

Imagine that the basic requirement of a military combat uniform is to prevent bullets and anti explosion. If you use optical fiber, you can track a soldier's position and vital signs, and then provide medication for them, and you can tighten the bandages or tourniquet remotely.

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In the future, Xtegra products may be used in medical textiles, but because of their completely novel concepts, it will take some time for them to be accepted by various industries. P

At present, applications for Xtegra products include seat belts, bandages, dental floss, surgical sutures, self-adjusting filters, torque measuring systems, oil spill recovery systems, hurricanes and antiknock plasterboards, medical delivery systems, antifungal and anti microbial clothing, tents and shelters, construction materials, etc.

If these products become derivatives of Xtegra products in the future, they will begin to appear in the market. It is estimated that the application scope of optical fiber technology will expand exponentially.

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< p > < strong > EeonTex the ultra conventional fabric can be switched freely in different application fields < /strong > /p >

< p > < strong > Dr. Eeonyx, President of American Eeonyx company, Dr. /strong

< p > EeonTex fabrics are conductors because of their electrical conductivity. They only need to configure a small high-performance battery in the training clothes made of fabrics, and install several connecting wires, which can easily supply power to interphones and cameras. This also saves the trouble of soldiers carrying all kinds of batteries.

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< p > the most exciting trend is that developers are looking for super conventional fabrics that can choose the starting fabric structure (strength, porosity, tensile, thickness, etc.), and control the electrical resistivity of the conductive polymer film on the surface of the fabric, so that it can be used in a variety of applications.

For example, electronic active textiles, resistive heaters, radar absorbing composite materials, collapsible and low radar cross section antennas.

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< p > < --EndFragment-- > strong > combined with nano metal particles can effectively absorb external energy < /strong > /p >

< p > EeonTex fabric can absorb 40% to 50% of the radiation wave, and the pmission of 15% radiation wave is invisible, because it will never return to radar.

For example, in mobile situations, it is almost impossible to distinguish the blades and aircraft of wind turbines, and even lead to the disappearance of aircraft from radar.

However, as a composite reinforced material, EeonTex fabric can solve this problem.

EeonTex fabrics focus on solving customer and market needs through nanotechnology.

The EeonTex production line enables us to debug the electrical conductivity of yarns in a very wide range in order to make electrical active textiles more durable.

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< p > in addition, when used for clothing fabrics, adding a small amount of nano metal particles into the EeonTex fabric can prevent the dust in the surrounding environment from touching the human body, effectively absorb the external energy, and radiate the far-infrared rays which are the same as the wave spectrum of the human body, resulting in the resonance activation phenomenon of human cells, which has the health care function of heat preservation and bacteriostasis, promoting blood circulation and enhancing immunity.

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< p > < strong > dry film brings good electrical conductivity to fabric < /strong > /p >

< p > the market needs new high-performance materials. EeonTex fabric is the most active and noteworthy fabric in use at present. It can be used to create artificial vision airports, natural system oceangoing ships, camouflage nets, and even folding radiated antennas.

In addition, after coating treatment, EeonTex can also be used for yarn, fabric, felt, film and other components.

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< p > when the traditional resistance heater is running, there will be electric current passing through the heating coil of the blanket or clothing. This type of product is inefficient and prone to uneven heat distribution.

However, the entire surface of EeonTex fabric is conductive and can be heated safely, efficiently and evenly.

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< p > after applying EeonTex material to the resistance heater, the surface of the heater is left with a colorless and pparent dry film with a thickness of not more than 1 microns. This film layer can effectively maintain good electrical conductivity and prevent the contact resistance of the contacts from increasing.

Its excellent electrical conductivity can completely eliminate the phenomenon of poor contact, prevent fire or power failure, and greatly improve the reliability and safety of equipment operation.

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< p > EeonTex fabric resistors can also be used in thermal insulation blanket of high grade hospitals. It is also easy to use in the use of the "chameleon camouflage" technology vest of special forces. If further modifications are made, it can also change the color, pattern and pattern of vest during heating.

The use of EeonTex fabrics, and special technology to weave, in the light of the fabric electrical conductivity also provides other aspects of convenience for soldiers.

EeonTex fabrics become conductors because of their electrical conductivity. They only need to configure a small high-performance battery in the training clothes made of fabrics, and install several connecting wires, which can easily supply power to interphones and cameras and other equipment, which also saves soldiers from carrying all kinds of batteries.

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< p > < strong > modern sound absorption technology is expected to realize true stealth < /strong > /p by digitalization.

< p > < strong > David, manager of safety and technology products Department of International Industrial Textiles Association, < /strong > /p >

< p > a research group has proposed a new concept of underwater acoustic material based on local resonance absorption network, which is a new underwater sound absorbing material called phononic glass.

By using the porous material skeleton and combined with the principle of resonance absorption, they have constructed a sound absorbing material with broadband and multi-mode vibration mode, and the porous skeleton composite material has greatly enhanced the material's ability of resisting high hydrostatic pressure.

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< p > as we all know, sound absorbing materials often exist on ceilings or floors, such as acoustic ceilings or carpets.

Of course, the divider curtain also has sound absorption effect, but its drawback is that it will block the sunlight.

Recently, however, Swiss researchers have developed a lightweight curtain that can absorb sound waves and allow light to pass through. This new product can be used in offices.

Researchers at the Swiss Confederation materials science and technology laboratory used digital technology to interweave modified polyester yarns to produce fabrics with absorption, fire resistance and light pmittance.

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< p > < strong > the skeleton of porous material increases the resistance to high hydrostatic pressure. < /strong > < /p >

< p > modern underwater sound absorbing material with excellent performance has wide application prospects and urgent practical needs.

At present, the key technical problems to be solved are to improve the sound absorption ability of materials in wide frequency range, to maintain the sound absorption characteristics of materials under Gao Jingshui pressure, and to enhance the comprehensive service performance of materials under complex environment.

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< p > recently, a research group of the Institute has proposed a new concept of underwater acoustic material based on local resonance absorption network, which is a new underwater sound absorbing material called phononic glass.

They made use of porous material skeleton and combined with the principle of resonance absorption to construct a sound absorbing material with broadband and multi-mode vibration mode, and realized the strong sound absorption characteristics of broadband. Meanwhile, the porous skeleton composite material greatly enhanced the material's ability of resisting high hydrostatic pressure.

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< p > in addition, in the earlier stage, in order to meet the needs of the modern underwater acoustic material for arbitrary tailoring of the broadband absorption spectrum, the research group put forward a kind of underwater acoustic material called the local resonant phonon wood pile by combining the two-dimensional local resonance unit with the wood stack structure. This material can broaden and control the absorption spectrum.

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< p > < strong > using 2D mathematical model to create an acoustic cloak prototype < /strong > /p >

< p > now there is a new turning point in this interesting field of technology. At the Balencia University in Balencia, Spain, researchers at the University of Balencia and Balencia University of science and technology have created an acoustic cloak prototype through a mathematical model of 2D.

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< p > the technology to eliminate different sounds at present is based on the principle of cancelling interference. If the two columns of sound wave are completely heterogeneous, their superposition is zero, so that we can not hear the sound.

The principle of acoustic cloak is different from that. It uses the waveform characteristics of sound to bypass the object in front and does not change the shape or direction of sound.

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< p > researchers accurately placed 120 cylinders in a position of 22.5 cm away from each object, and the diameter of each cylinder was 15 mm.

Through this precision design experiment, the researchers found that the sound wave at a specific frequency (3061 Hz, bandwidth of about 100 Hz) keeps the wavefront mode of its original source. When this particular sound wave passes through an object, it can gracefully slide over the surface of the object and bypass the object.

Researchers say that a specific cylinder can correspond to a specific frequency of sound waves, so as long as changes in the distribution of cylinders around the object, such as increasing the number of cylinders placed, it can aim at another frequency of sound waves, to achieve "stealth" purposes.

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< p > it is speculated that the future application prospect of this technology is very broad. In the real world, by precise arrangement, sound waves around a specific frequency can make the city environment have better sound effects. For example, in the performance hall, the quiet helmet can make music performance more pleasant and pleasant, and the latter can make the extreme noise of the outside be filtered out, so as to achieve the function of hearing protection.

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