Apparatus and method for manufacturing aerogel sheet
AssigneeLG Chem, Ltd.
InventorsYe Hon Kim, Je Kyun Lee, Kyoung Shil Oh
Life of this patent
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Abstract
The present invention relates to a method for manufacturing an aerogel sheet and comprises: a step (a) of impregnating an acid solution into a fiber sheet to clean the fiber sheet by using the acid solution and impregnating a binder solution into the fiber sheet that is cleaned by using the acid solution to manufacture a pre-processed fiber sheet; a step (b) of impregnating a silica precursor into the pre-processed fiber sheet; and a step (c) of a gelling catalyst into the fiber sheet into which the silica precursor is impregnated to gelate the silica precursor.
Claims17
A method for manufacturing an aerogel sheet, the method comprising:
- a step (a) of impregnating an acid solution into a fiber sheet to clean the fiber sheet yielding a cleaned fiber sheet, and impregnating a binder solution into the cleaned fiber sheet to manufacture a pre-processed fiber sheet, wherein an organic impregnation solution that is poly vinyl alcohol (PVA) and poly vinyl butyral (PVB) or an inorganic impregnation solution that is silica sol is used as the binder solution;
- a step (b) of impregnating a silica precursor into the pre-processed fiber sheet;
- and
- a step (c) of injecting a gelling catalyst into the fiber sheet into which the silica precursor is impregnated to gelate the silica precursor.
A method for manufacturing an aerogel sheet, the method comprising:
- a step (a) of impregnating an acid solution into a fiber sheet to clean the fiber sheet yielding a cleaned fiber sheet, and impregnating a binder solution into the cleaned fiber sheet to manufacture a pre-processed fiber sheet;
- a step (b) of impregnating a silica precursor into the pre-processed fiber sheet;
- and
- a step (c) of injecting a gelling catalyst into the surface of the fiber sheet, into which the silica precursor is impregnated, at a rate of 0.035 L/min to 0.012 L/min to leave the gelling catalyst for 8 minutes to 12 minutes and thereby to gelate the silica precursor.
A method for manufacturing an aerogel sheet, the method comprising:
- a step (a) of impregnating an acid solution into a fiber sheet to clean the fiber sheet yielding a cleaned fiber sheet, and impregnating a binder solution into the cleaned fiber sheet to manufacture a pre-processed fiber sheet;
- a step (b) of impregnating a silica precursor into the pre-processed fiber sheet;
- a step (c) of injecting a gelling catalyst into the fiber sheet into which the silica precursor is impregnated to gelate the silica precursor;
- and
- a step (d) of aging the fiber sheet in which the silica precursor is gelated for 50 minutes at a temperature of 70° C.
Dependencies are inferred from the claim text.