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The properties of AR(Alkali Resistant)-glass fiber by zirconia contents

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2015, 25(6), pp.263~271
  • DOI : 10.6111/JKCGCT.2015.25.6.263
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Ji-Sun Lee 1 Tae-Young Lim 1 Mi-Jai Lee 1 Jonghee Hwang 1 Jin-Ho Kim 1 SOONGKEUN HYUN ORD ID 2

1한국세라믹기술원
2인하대학교

Accredited

ABSTRACT

Commercial AR(Alkali Resistant)-glass fiber has a good chemical resistant property, but also has a problem of difficulty in fiberizing process because of high viscosity in melted glass compare with E-glass fiber which is the most widely used for reinforced fiber of composite materials. In this study, we fabricated AR-glass fiber with low zirconia contents compare with commercial AR-glass fiber relatively, and measured properties against E-glass fiber. We obtained transparent clear glass with zirconia contents of 0.5~16 wt% by melting at 1600oC for 2 hours. These AR-glass samples had high visible transmittance of 89~90 %, softening temperature of 703~887oC. And softening temperatures of them were increased according to the increasing zirconia contents. Compare with E-glass, AR-glass contains 4 wt% zirconia has different value of −94oC in softening temperature, +68oC at Log3 temperature and −13oC at Log5 temperature in viscosity. We could verify good alkali resistant property of the AR-glass fiber with SEM after dipping in alkali solution for 48~72 hours, and also high tensile strength, 1.7 times compare with E-glass fiber at 48 hours and 2.2 times at 72 hours. We conclude that this AR-glass fiber can be widely used as general alkali resistant glass fiber because of easy manufacturing condition and good properties even though it has low zirconia contents.

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