Unitary or polybasic aerogel thermal insulation material and preparation method thereof

Abstract

The invention discloses a unitary or polybasic aerogel thermal insulation material and a preparation method of the material. The method comprises the steps of preparing sol, solidifying sol to form gel, aging and drying, or comprises the steps of preparing sol, preparing a prefabricated body, infiltrating, coagulating sol, aging and drying. The aerogel component in the thermal insulation materialdisclosed by the invention is formed in a unitary or polybasic way, and can be formed by flexibly adjusting a single component, so that the characteristic of aerogel can be given a full play to the greatest extent, the material can be used in different temperature resisting fields, and aerogel formed by different components can be used aiming at the different temperature resisting fields, so thatthe heat insulation effect of the aerogel thermal insulation material can be more high-efficiency. The production and forming method of the unitary or polybasic aerogel thermal insulation material, disclosed by the invention, is a set of technology which is complete, continuous, and low in cost, and can be used in industrial method production, the produced aerogel thermal insulation material withhigh performance is wide in application field, is wide in using temperature, can meet different using requirements of war industry fields, civil fields, heat-protection fields with special requirements, and the like.

Description

technical field

[0001] The present invention relates to an airgel heat insulating material and a preparation method thereof, more specifically, the present invention relates to a one-element or multi-element composite airgel heat-insulation material and a preparation method thereof. Background technique

[0002] Airgel composite heat insulation material is a new type of heat insulation material, and its heat insulation effect can reach more than 7 times that of conventional heat insulation materials, so it is called super heat insulation material. Airgel composite thermal insulation materials are widely used in various fields such as military, civilian and aerospace. Typical application examples include: thermal insulation tiles on the outer surface of the space shuttle; thermal insulation blankets for the Mars Exploration Rover of Spirit; ; F-22 aircraft engine heat shield structure; Gulf of Mexico submarine oil pipeline, etc. As a high-efficiency heat insulation material,...