ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

MDF-related compositions based on novel low-energy clinkers

M. Drábik, L. Gáliková, F. Hanic, and J.H. Sharp

Institute of Inorganic Chemistry, Slovak Academy of Sciences, SK-842 36 Bratislava

Abstract: The effects of composition of suliobelitic clinker and polymers present upon the processibility and cross-linkability during MDF processing have been studied. The behaviour of MDFs within the sulfobelitic clinker/hpmc/poly-P system is controlled by the Ar(Fe)-O-C(P) cross-links formed in the local structure of the intergranular mass. Exposure to moisture confirms similarities to Portland cement-based MDFs in resolving effects of relative humidity below/above 50 %. Percolation of the material by water vapour and secondary surface corrosion-formation of Ca(OH)(2) - exert technological consequences and display a need for further improvement.

Chemical Papers 51 (6A) 363–366 (1997)