JEC 2016 - Composite Exhibition in France

Prepreg Projects successful finished / Roll to Roll prepreg production lines and lap lines are almost reality

(PresseBox) ( Dormagen, )
Hightech Composite materials, for example carbon, glass and aramid fibers, are used in different markets, like automotive, pressure vessels and aerospace. The market is growing rapidly and therefore the development of new and highly innovative impregnation and coating machinery concepts is more and more important. Coatema Coating Machinery GmbH is a market leader in these innovative technologies. With different customers from the industry, institutes and universities we have realized several prepreg lines over the last ten years.

For a German customer we have delivered the first prepreg production line. This line is over 19 meters long and the working width is 1400mm. In this project the task was to develop a universal prepreg line for thermoplastics and thermosettings, which will make it possible to coat woven substrates with multidirectional fibres construction or alternative singular aramid, carbon and glass fibres. Therefore we have installed a creel with 2*180 bobbins. With our high precise spreading units we can guarantee a well-defined and effective treatment of spreading the singular fibres next to each other. For the coating process we have installed a 2 in 1 solution which makes it possible to use a direct coater or alternative a reverse roll coating system. With this solution it is easily possible to coat the top and bottom release paper with a big range of different adhesives belonging the customer’s specifications. The impregnation and curing process follows with a combination of 3 pieces two roller heated calanders with preceding heating tables for preheating the fabrics. After delaminating the release paper the finishes fabrics can be winded.

With this combination of high-precision units, harmonized to each other, we have succeeded to realize the first Prepreg production line in Germany.

Out of this project Coatema Coating Machinery GmbH was able to install more than 15 coating lines for single Thermosetting or Thermoplastic processes as well as prepreg Production lines which combine both processes worldwide.



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