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    • 1. 发明授权
    • Glass fiber composition
    • 玻璃纤维组成
    • US6034014A
    • 2000-03-07
    • US905494
    • 1997-08-04
    • Charles F. RappStephanie M. Mattson
    • Charles F. RappStephanie M. Mattson
    • C03C13/00C03C3/091
    • C03C13/00C03C2213/02
    • The glass compositions of the present invention contain at least 2.0 wt % Al.sub.2 O.sub.3 to give resulting glass fiber an acceptable chemical durability for product performance, but no more than 3.0 wt % to ensure the fiber maintains a relatively high biosolubility. The compositions further include relatively high amount of Na.sub.2 O+K.sub.2 O+MgO+CaO, which tends to increase fiber biosolubility and allows for the use of reduced amounts of B.sub.2 O.sub.3 in the composition. The glass compositions have KI values that generally equal or exceed a KI value of 40 and are suitable for rotary processing. The compositions have liquidus temperatures below about 1800.degree. F. and viscosities above 300 Poise at the liquidus temperature. For higher B.sub.2 O.sub.3 compositions the liquidus temperatures are below 1650.degree. F., and the viscosities are above 1,000 Poises at the liquidus temperatures.
    • 本发明的玻璃组合物含有至少2.0重量%的Al 2 O 3,以使所得的玻璃纤维具有可接受的产品性能的化学耐久性,但不超过3.0重量%以确保纤维保持较高的生物溶解性。 组合物还包括相对高量的Na 2 O + K 2 O + MgO + CaO,其倾向于增加纤维生物溶解性并允许在组合物中使用减少量的B 2 O 3。 玻璃组合物的KI值通常等于或超过KI值40,并且适用于旋转加工。 该组合物在液相线温度下的液相线温度低于约1800°F,粘度高于300泊。 对于较高的B2O3组成,液相线温度低于1650°F,液相线温度下粘度高于1,000泊。