Preparation method of alumina fiber product containing nano microporous structure

• Main Authors: LI HONGXIA, WANG GANG, LI HONGYU, SUN XIAOFEI, YAN SENWANG
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention belongs to the field of light thermal insulation materials, and particularly relates to a preparation method of an alumina fiber product containing a nano microporous structure. The preparation method of the alumina fiber product containing a nano microporous structure comprises the following steps of: dipping an alumina fiberboard into anhydrous ethanol mixed with resin for a periodof time, then putting the alumina fiberboard into a drying oven for drying, and then carrying out nitriding heat treatment to form the alumina fiber product containing the nano microporous structure.The alumina fiber product prepared by the invention generates a large number of nano micropores after resin impregnation and heat treatment, the thermal conductivity of the material is further reduced, and the mechanical strength of the material is also improved while carbon is combined, therefore the product has the characteristics of high compressive strength, low thermal conductivity and low density. 本发明属于轻质隔热材料领域，具体涉及