Scientists are reporting development and successful testing of a fabric coating that would give new meaning to the phrase "stain-resistant" - a coating that would take an active role in sloughing off grease, dirt, strong acids and other gunk. A method called "layer-by-layer" (LbL) self-assembly produces films and coatings for sensors, drug-delivery devices and many other products. LbL involves setting down alternate layers of positively and negatively charged materials that are held together by electric charges. With this approach, coatings can be custom-designed for specific applications by selecting the composition of each layer. The downside: These multilayer films are not very stable and eventually come apart. Source: ACS
Saturday, May 5, 2012
Beyond stain-resistant: New fabric coating actively shrugs off gunk
Scientists are reporting development and successful testing of a fabric coating that would give new meaning to the phrase "stain-resistant" - a coating that would take an active role in sloughing off grease, dirt, strong acids and other gunk. A method called "layer-by-layer" (LbL) self-assembly produces films and coatings for sensors, drug-delivery devices and many other products. LbL involves setting down alternate layers of positively and negatively charged materials that are held together by electric charges. With this approach, coatings can be custom-designed for specific applications by selecting the composition of each layer. The downside: These multilayer films are not very stable and eventually come apart. Source: ACS
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