Scientists borrow environmentally friendly adhesive in nature


18/07/2012

Most of the things that surround man, glued together. According to scientists from the Fraunhofer Institute, this is bad, as in the manufacture of glue mainly used oil feedstock. For example, in Germany alone in 2010 produced more than 800 tons of glue.

Thus it is possible to make more environmentally friendly adhesive from renewable materials, for example, starch, proteins, natural rubber, cellulose. Researchers from UMSICHT develop new formulas glue needed to make planes, cars, shoes, plaster, adhesive stickers, etc.

German scientists are working to develop a new pressure-sensitive adhesive for industrial applications. This adhesive is perfect for the manufacture of household items such as adhesives, labels, adhesive tapes, etc. Such adhesive imposed rather high demands: it must be glued at a low pressure objects long retain their adhesive properties and ability at room temperature, and wherein easily come off from the surface.

German researchers have concentrated their efforts on the creation of an adhesive polymer of polylactic acid. Polylactic acid - an inexpensive biological mother, which is produced on a large scale, so that in the future, its use for the production of adhesives will eliminate the use of oil for this purpose.

However, it should be noted that the properties of lactic acid polymers differ from those used today polymers such as styrene and acrylic resins. This means that scientists need to develop a new formula. It’s real, as evidenced by the very nature: the mollusk Dosima fascicularis produces its own adhesive that allows it to be attached firmly to the bottom of the ships. This eco-friendly superglue so strong that the shellfish is extremely difficult to detach from the ship, and even very strong solvents. In addition, this adhesive has another remarkable property: it copes with its task, even under water.

German scientists want to create a similar water-dispersion adhesive, the components of which will be dissolved in the water. Now researchers are trying to determine which of the amino acids make up proteins of biological ultra strong glue.

According to the materials Sciencemagis.ru


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