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Preparation method of ceramic fiber/hydrophobic fumed silica composite thermal insulation material
The invention relates to the field of thermal insulation materials, and discloses a preparation method of a ceramic fiber/hydrophobic fumed silica composite thermal insulation material, which comprises the following steps: 1) preparing a polydopamine solution; 2) mixing water, hydrophobic fumed silica, a polydopamine solution, a polymer emulsion stabilizer and a defoaming agent to prepare hydrophobic fumed silica dispersed slurry; 3) mixing ceramic fibers and the hydrophobic fumed silica dispersed slurry to prepare mixed slurry; and 4) carrying out papermaking molding, suction filtration and drying to obtain the ceramic fiber/hydrophobic fumed silica composite thermal insulation material. The hydrophobic fumed silica and the ceramic fiber are prepared into the mixed slurry, the ceramic fiber/hydrophobic fumed silica composite thermal insulation material can be prepared through a papermaking process, and the method is simple in process, low in equipment requirement and easy for industrial production; and the obtained ceramic fiber/hydrophobic fumed silica composite thermal insulation material is low in high-temperature heat conductivity coefficient and high in mechanical strength.
本发明涉及隔热材料领域，本发明公开了一种陶瓷纤维/疏水气相二氧化硅复合隔热材料的制备方法，包括：1）制备聚多巴胺溶液；2）将水，疏水气相二氧化硅，聚多巴胺溶液，高分子乳化稳定剂和消泡剂混合，制得疏水气相二氧化硅分散浆料；3）将陶瓷纤维和疏水气相二氧化硅分散浆料混合制得混合浆料；4）通过抄造成型，抽滤，烘干，得到陶瓷纤维/疏水气相二氧化硅复合隔热材料。本发明将疏水气相二氧化硅与陶瓷纤维制备为混合浆料后，通过抄造工艺即可制得陶瓷纤维/疏水气相二氧化硅复合隔热材料，该方法工艺简单，设备要求低，易于工业化生产；并且所得陶瓷纤维/疏水气相二氧化硅复合隔热材料的高温导热系数低、机械强度高。
Preparation method of ceramic fiber/hydrophobic fumed silica composite thermal insulation material
The invention relates to the field of thermal insulation materials, and discloses a preparation method of a ceramic fiber/hydrophobic fumed silica composite thermal insulation material, which comprises the following steps: 1) preparing a polydopamine solution; 2) mixing water, hydrophobic fumed silica, a polydopamine solution, a polymer emulsion stabilizer and a defoaming agent to prepare hydrophobic fumed silica dispersed slurry; 3) mixing ceramic fibers and the hydrophobic fumed silica dispersed slurry to prepare mixed slurry; and 4) carrying out papermaking molding, suction filtration and drying to obtain the ceramic fiber/hydrophobic fumed silica composite thermal insulation material. The hydrophobic fumed silica and the ceramic fiber are prepared into the mixed slurry, the ceramic fiber/hydrophobic fumed silica composite thermal insulation material can be prepared through a papermaking process, and the method is simple in process, low in equipment requirement and easy for industrial production; and the obtained ceramic fiber/hydrophobic fumed silica composite thermal insulation material is low in high-temperature heat conductivity coefficient and high in mechanical strength.
本发明涉及隔热材料领域，本发明公开了一种陶瓷纤维/疏水气相二氧化硅复合隔热材料的制备方法，包括：1）制备聚多巴胺溶液；2）将水，疏水气相二氧化硅，聚多巴胺溶液，高分子乳化稳定剂和消泡剂混合，制得疏水气相二氧化硅分散浆料；3）将陶瓷纤维和疏水气相二氧化硅分散浆料混合制得混合浆料；4）通过抄造成型，抽滤，烘干，得到陶瓷纤维/疏水气相二氧化硅复合隔热材料。本发明将疏水气相二氧化硅与陶瓷纤维制备为混合浆料后，通过抄造工艺即可制得陶瓷纤维/疏水气相二氧化硅复合隔热材料，该方法工艺简单，设备要求低，易于工业化生产；并且所得陶瓷纤维/疏水气相二氧化硅复合隔热材料的高温导热系数低、机械强度高。
Preparation method of ceramic fiber/hydrophobic fumed silica composite thermal insulation material
一种陶瓷纤维/疏水气相二氧化硅复合隔热材料的制备方法
DING KAI (author) / JIN DANDAN (author) / LIANG ZHENG (author) / PANG PEIYAN (author) / JIN MIAOQIAN (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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