AR (alkali resistant)-glass fibers were developed to provide better alkali resistance, but there is currently no research on AR-glass fiber manufacturing. In this study, we fabricated glass fiber from AR-glass using a continuous spinning process with 40 wt% refused coal ore. To confirm the melting properties of the marble glass, raw material was put into a (platinum) Pt crucible and melted at temperatures up to 1,650 °C for 2 h and then annealed. To confirm the transparent clear marble glass, visible transmittance was measured and the fiber spinning condition was investigated by high temperature viscosity measurement. A change in diameter was observed according to winding speed in the range of 100 to 700 rpm. We also checked the change in diameter as a function of fiberizing temperature in the range of 1,240 to 1,340 °C. As winding speed increased at constant temperature, fiber diameter tended to decrease. However, at fiberizing temperature at constant winding speed, fiber diameter tended to increase. The properties of the prepared spinning fibers were confirmed by optical microscope, tensile strength, modulus and alkali-resistance tests.

1. Introduction
2. Experimental Procedure
3. Results and Discussion
    3.1. Evaluation of a marble glass
    3.2. Continuous spinning system
    3.3. Observe the fiber diameter depending on thewinding speed
    3.4. Observe the fiber diameter depending on thefiberizing temperature
    3.5. Observe the fiber surface after an alkali treatment
4. Conclusion
Acknowledgement
References

• Ji-Sun Lee(Display Material Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea)
• Jinho Kim(Display Material Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea) Corresponding author