Tech Exchange

Low-Water Cleaning

The manufacturing of consumer products, foods, and pharmaceuticals requires the implementation of stringent cleaning requirements of all batch, semi-continuous, and continuous processes equipment. High standards of hygienic quality must be maintained, and the cleaning process must ensure that there is no cross-contamination of products. A client needs to reduce the amount of water required to clean stainless steel-based manufacturing plant equipment, such as vessels, mixers, and pipework. New chemical and/or process technologies must clean products of wide-ranging viscosities. Potential solution areas include self-cleaning surfaces, surface- modification technologies, and air-based cleaning.

Posted in: Tech Needs, NASA Tech Needs

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Multiple-Component Fibers Strengthen Non-Woven Fabric

A technology provides a full-surface, bonded, nonwoven fabric with a tensile strength suitable for packaging, bubble packs, and other applications requiring tear resistance. Fullwidth bonding, compared to the more common patterned point bonding, produces the high-strength fabric. The thin, low-cost material can be easily manufactured in smooth calendaring plants. Low voids reinforce the fabric.

Posted in: Tech Exchange, Techs for License

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Microwave Energy Removes Fuel- Processing Impurities

A traditional sulfur-adsorption bed uses microwave energy to remove, or desorb, captured impurities. Conventional adsorption beds use heat and sometimes vacuum to cleanse the bed of sorbents; the process is energy-intensive and can reduce sorbent life. By using microwaves, the new technology desorbs the captured impurities from the bed with little or no change in temperature.

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Viscosity Thickeners for Adhesive Polymer

A client uses sodium and potassium stearates to build body and viscosity in a polymer dispersion intended as an adhesive. The stearates adversely affect shear strength after the dispersion cures. Non-stearate thickeners, or different stearates, are needed. By varying the nature of the fillers and thickeners, and possibly by varying their loading, post-cure compression shear strength of 2000-2500 pounds must be achieved. Lesser strengths may also be of interest. The viscosity thickeners must bond wood and similar porous substrates, as well as nonporous surfaces. The adhesive must be applied smoothly, as though poured.

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New Sensations for Saline Nasal Sprays

New sensations for saline sprays and washes must moisturize dry nasal passages and relieve a stuffy nose. Additives such as eucalyptus or sesame oil, for example, produce coolness or warmth. The desired effects must calm, soften, and relieve symptoms. An antibacterial effect and a physical rinse are of interest. Potential ingredients may include menthol, eucalyptus, lavender, heather, aloe vera, Echinacea, elderberry, and apple cider vinegar. A proposed solution, which must be drug-free, efficacious, and safe, may also feature a differentiated delivery device.

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Acceleration Sensor Enables New Robotics Applications

The Inclinos 3DS inclination and acceleration sensor, based on thermodynamic effects, exhibits no hysteresis in response signal (output lag). A power distribution of four heaters is controlled by a closed loop, and the temperature of each heater is constantly affected by any acceleration. The sensor has no moving parts, no inertial mass, and offers high responsivity from the idle position. Depending on the angle, the Inclinos measures 360-degree inclination on two axes.

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Water-Based Cooling Fluid Reduces Corrosion

A water/propylene glycol-based formulation acts as a heattransfer medium and reduces the corrosion of sensitive metals by 10x to 100x in heat exchangers, radiators, cold plates, and associated plumbing. The water-based cooling fluid can be used with equipment containing a variety of metals, while still providing freeze protection.

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