Fluorescence study of the hydrolytic degradation process of the polysiloxane coatings of basalt fibers
Basalt fiber surfaces were modified using different silane aqueous solutions to generate a variety of polyorganosiloxane coatings. After removing the commercial coating of the fibers by calcination and subsequent activation processes, polysiloxanes were grafted on the fiber surfaces. Three aqueous solutions were used for the silanization: (i) γ-aminopropyltriethoxysilane, APTES; (ii) γ-aminopropylmethyldiethoxysilane, APDES, and (iii) a mixture of 50% by weight of both APTES + APDES.