浸渍工艺对ZrO_2纤维布结构及性能的影响

Effect of Immersion Process on Microstructure and Properties of Zirconia Fiber Cloth

采用前驱体浸渍工艺制备ZrO2纤维布。利用SEM、XRD研究粘胶织物及ZrO2纤维布的微观结构;测试了ZrO2纤维布的横向抗张强度,研究了浸渍工艺对ZrO2纤维布微观结构、面密度和抗张强度的影响。结果表明:粘胶织物是制备ZrO2纤维布的理想前驱体材料;改善浸渍方式、提高浸渍溶液浓度和温度均能提高ZrO2纤维布的面密度;浸渍方式显著影响单根纤维的致密程度,残液去除方式显著影响纤维的分散程度,采用辊压浸渍和离心甩干去除残液的方式能够显著提高ZrO2纤维布的抗张强度。

Zirconia fiber cloth was prepared by precursor immersion process.The microstructure of viscose textile and zirconia fiber cloth was studied by SEM and XRD.The tensile strength of zirconia fiber cloth was also tested.The effect of immersion process on the microstructure,area density and tensile strength of zirconia fiber cloth were studied.The results show that viscose textile is very suitable to be used as the precursor for preparing zirconia fiber cloth.Improving of immersion process,increasing of immersion solution＇s concentration and temperature could increase the area density of zirconia fiber cloth.The effect of immersion method on the dense of fibers is significant and the effect of excess solution removing method on the bonding of fibers is significant too;the tensile strength of zirconia fiber cloth can be increased significantly by immersion with rolling and centrifugation removing excess solution.