摘要:
The present invention relates to a composition for preparing ceramic fiber and a biosoluble ceramic fiber prepared therefrom for heat insulating material at high temperature, more specifically, a composition for preparing ceramic fiber comprising SiO2 as a network-forming oxide, CaO and MgO as modifier oxides, and ZrO2, Al2O3 and B2O3 as intermediate oxides with appropriate ratios, which improves the solubility of the ceramic fiber in artificial body fluid; shows good thermal/mechanical properties such as heat resistance, high-temperature viscosity, compressive strength and restoration when used at a high temperature of 1260° C.; and provides an economic effect that a ceramic fiber can be prepared easily by using the existing facilities, and a biosoluble ceramic fiber prepared therefrom for heat insulating material at high temperature.
摘要翻译:本发明涉及一种用于制备陶瓷纤维的组合物和由其制备的用于隔热材料的高温下的生物可溶陶瓷纤维,更具体地说,涉及一种用于制备包含SiO 2作为网络形成氧化物的陶瓷纤维的组合物,CaO和MgO作为调整剂氧化物 ,ZrO 2,Al 2 O 3和B 2 O 3作为适当比例的中间氧化物,改善了陶瓷纤维在人造体液中的溶解度; 在1260℃的高温下使用时,耐热性,高温粘度,抗压强度和恢复性能良好的热/机械性能。 并且提供通过使用现有设施容易地制备陶瓷纤维的经济效果,以及由其制备的用于隔热材料的高温度的生物可溶性陶瓷纤维。
摘要:
A biodegradable ceramic fiber composition for a high-temperature thermal insulator is provided. The composition includes: 58 to 67% by weight SiO2, 26 to 34% by weight CaO, 2 to 8% by weight MgO, 0 to 1% by weight Al2O3, 0 to 5% by weight B2O3, 0 to 3% by weight Na2O+K2O, and 1% by weight or less impurities selected from TiO2 and Fe2O3. The composition has a linear thermal contraction coefficient of 3% or less (when maintained at 1100° C. for 24 hours) and a dissolution rate constant of 700 ng/cm2·hr or more in a synthetic body fluid. When compared to known biodegradable ceramic fibers, the ceramic fiber composition also has a significantly improved solubility in a synthetic body fluid so that it can easily be dissolved and removed even when inhaled into the human lungs, thereby reducing harmfulness to the human body.
摘要翻译:提供了用于高温绝热体的可生物降解的陶瓷纤维组合物。 该组合物包括:58至67重量%的SiO 2,26至34重量%的CaO,2至8重量%的MgO,0至1重量%的Al 2 O 3,0至5重量%的B 2 O 3,0至3重量% Na 2 O + K 2 O和1重量%以下的选自TiO 2和Fe 2 O 3的杂质。 该组合物的线性热收缩系数为3%以下(在1100℃保持24小时时),合成体液中的溶解速度常数为700ng / cm 2·小时以上。 当与已知的可生物降解的陶瓷纤维相比时,陶瓷纤维组合物在合成体液中的溶解度也显着提高,因此即使吸入人肺也能容易地溶解和去除,从而降低对人体的危害。
摘要:
A biodegradable ceramic fiber composition for a high-temperature thermal insulator is provided. The composition includes: 58 to 67% by weight SiO2, 26 to 34% by weight CaO, 2 to 8% by weight MgO, 0 to 1% by weight Al2O3, 0 to 5% by weight B2O3, 0 to 3% by weight Na2O+K2O, and 1% by weight or less impurities selected from TiO2 and Fe2O3. The composition has a linear thermal contraction coefficient of 3% or less (when maintained at 1100° C. for 24 hours) and a dissolution rate constant of 700 ng/cm2·hr or more in a synthetic body fluid. When compared to known biodegradable ceramic fibers, the ceramic fiber composition also has a significantly improved solubility in a synthetic body fluid so that it can easily be dissolved and removed even when inhaled into the human lungs, thereby reducing harmfulness to the human body.
摘要翻译:提供了用于高温绝热体的可生物降解的陶瓷纤维组合物。 该组合物包括:58至67重量%的SiO 2,26至34重量%的CaO,2至8重量%的MgO,0至1重量%的Al 2 O 3,0至5重量%的B 2 O 3,0至3重量% Na 2 O + K 2 O和1重量%以下的选自TiO 2和Fe 2 O 3的杂质。 该组合物的线性热收缩系数为3%以下(在1100℃保持24小时时),合成体液中的溶解速度常数为700ng / cm 2·小时以上。 当与已知的可生物降解的陶瓷纤维相比时,陶瓷纤维组合物在合成体液中的溶解度也显着提高,因此即使吸入人肺也能容易地溶解和去除,从而降低对人体的危害。