METHOD OF MANUFACTURE OF PRODUCTS FROM GEOPOLYMER COMPOSITE

摘要

A method of manufacture of products from geopolymer composite shaped in a mold which is filled by casting of geopolymer composite in form of a precursor and after its hardening the casting is taken out from the mold and the casting surface is provided with a metallic layer. Before metal-plating casting surface with absorption capacity greater than 5 % is treated to make it chemically stable so that pH of a leachate from 100 g of the bulk product in 1000 g distilled water after 24 hours does not exceed 9. In order to reduce the absorption capacity of the casting surface it is penetrated with polymer substances or particles of a non-porous filler are added into the geopolymer composite in the precursor state. The metallic layer on the casting surface is made by a method from the group of methods that include vacuum deposition, vacuum sputtering, galvanization, cold metal spraying, dip coating in melted metal, plasma spraying of melted metal, deposition of metal from metal salt solution or colloid solution or sintering of powder metal.