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    • 8. 发明授权
    • Method for fabricating silica glass
    • 石英玻璃的制造方法
    • US5919280A
    • 1999-07-06
    • US122627
    • 1998-07-27
    • Jeong-hyun OhYoung-min Baik
    • Jeong-hyun OhYoung-min Baik
    • C03B8/02C03B19/12C03B20/00C03C1/00C03C3/06C03C13/04C03B8/00C03B37/016C03B3/04
    • C03C13/045C03B19/12C03C1/006C03C3/06C03C2201/02C03C2203/22C03C2203/32C03C2203/52Y02P40/57
    • A method for fabricating a silica glass is provided. The method includes the steps of adding silica and a dispersant to a premix solution obtained by dissolving an acrylic resin monomer and a cross-linking agent in distilled water, dispersing the mixed solution and adjusting the pH of the mixture, to form a sol. Air bubbles are removed from the sol, and then the resultant sol is aged. A polymerization initiator and a catalyst are added to the aged sol, and the pH of the reaction mixture is adjusted. The reaction mixture is poured into a mold, and then the mixture is gelated, aged, demolded, dried, and then thermally treated to remove organic substances. Hydroxy groups are eliminated and the gel is sintered. A high purity silica glass tube, substantially free of cracking after drying and having a low shrinking ratio can be obtained. Also, a large silica glass tube can be manufactured by this fabrication method.
    • 提供一种制造石英玻璃的方法。 该方法包括将二氧化硅和分散剂加入到通过将丙烯酸树脂单体和交联剂溶解在蒸馏水中而获得的预混合溶液中,分散混合溶液并调节混合物的pH以形成溶胶的步骤。 从溶胶中除去气泡,然后使所得溶胶老化。 向老化的溶胶中加入聚合引发剂和催化剂,调整反应混合物的pH。 将反应混合物倒入模具中,然后将混合物凝胶化,老化,脱模,干燥,然后热处理以除去有机物质。 消除羟基并将凝胶烧结。 可以获得高纯度石英玻璃管,其干燥后基本上不含裂纹并具有低收缩率。 此外,可以通过该制造方法制造大的石英玻璃管。