Phospho-Silicate Glasses, Self-Degradable in Environment Conditions

L. Stoch; I. Wacławska; Magdalena  Szumera

doi:10.4028/www.scientific.net/AMR.39-40.335

Paper Titles

The Corrosion of E-Glass Fibres in Complexing Organic Acids
p.311

Mechanism of Generation of Tableware Surface Defects during Dishwashing Process
p.323

Biomedical Thermodynamics and Implantology Aspects of Biocompatible Glass-Ceramics and Otherwise Modified Inorganic Materials and Surfaces
p.329

Phospho-Silicate Glasses, Self-Degradable in Environment Conditions
p.335

Continuous Measurement of the Dissolution Rate of Ions from Glasses
p.341

Kinetics of SiO₂ Nanofibres Dissolution in the Simulated Lung Environment
p.347

Glass Surface Analysis by an Optimized Sequential Chemical Etching Technique Using the Corrosive Agent HF/HNO₃
p.351

Kinetics of E-glass Fibres Leaching in Borate Solution and Distilled Water
p.355

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 39-40Phospho-Silicate Glasses, Self-Degradable in...

Phospho-Silicate Glasses, Self-Degradable in Environment Conditions

Abstract:

Glasses from the SiO2–P2O5–MgO–CaO–K2O system, hardly soluble in water, but possessing capability of self – degradation in soil environment, were obtained. The plants can assimilate mineral nutrients and microelements from them. The mechanism of glass degradation in a soil was studied. It is incongruent dissolution process, analogous to weathering of magmatic rocks and minerals grains. Amorphous silicate gel and phosphates as intermediate products of glass structure decomposition are formed. They are dissolving gradually next. The glasses can be used as nutrients for ecological farming and environment recultivation, reducing the disturbance of biochemical equilibrium, connected with traditional chemical fertilizers application.