A Review of Glass Fibre Recycling Technology Using Chemical and Mechanical Separation of Surface Sizing Agents

Glass fiber is widely used in various modern industrial applications because it has the advantages of good electrical insulation performance and process ability. Inevitably, some flawed glass generated during manufacturing processes becomes waste and, recent years, treatment or recycling become an environmental concern. Since brittle, non-wearing, can easily generate static electricity after friction, surface must be coated with a wetting agent (i.e., sizing agent) to overcome these disadvantages. However, cannot directly recycled as raw materials due presence high content sodium element. Therefore, there need develop feasible technology for removal order recycle waste. In this study, two methods were remove from After removing agent, treated replace sand particles controlled low-strength material (CLSM). The first method different organic solvents such ethyl acetate dissolve coating agent). Then, optical microscope was observe changes before treatments. second involved grinding into fine powder heating temperature. An X-ray diffractometer (XRD) fluorescence (XRF) analyze characteristics experimental results showed that could not effectively even if processed by ultrasonic vibration 5 h. contrast, at 800 °C 2 h, removed, transformed cristobalite. CLSM concrete produced mixing cristobalite cement appropriate proportion meet specification standard Taiwan.