COMPOSITION FILLED WITH ACTINIDE POWDER AND AROMATIC POLYMER AND/OR PMMA

摘要

The invention relates to a composition filled with actinide powder, comprising an organic matrix and an actinide powder or a mixture of actinide powders. The composition is characterised in that it comprises at least: a plasticiser containing an alkane of which the longest radical chain comprises at least several dozen carbon atoms, representing between 20 and 70% of the total volume of the organic compounds alone; a binder comprising at least one aromatic polymer and/or polymethacrylate, representing between 20 and 50 % of the total volume of the organic compounds alone; and a dispersant comprising a carboxylic acid or the salts thereof and representing less than 10% of the total volume of the organic compounds alone. According to the invention, the actinide powder or mixture of actinide powders represents between 40 and 65% of the volume of the filled matrix.