Manufacturing method for thermal insulating material
OwnerHiroyuki Izumi, Kei Togasaki +1inventors
InventorsHiroyuki Izumi, Kei Togasaki, Hiroshi Yokota
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Abstract
A manufacturing method for a thermal insulating material, including: an applying step of applying a coating liquid obtained by mixing aerogel particles, a water-soluble polymer having a hydrophobic group, and a liquid medium such that the aerogel particles are aggregated, with a coating means applying a pressure of 1.5 MPa or less to the coating liquid to obtain a coated film; and a removing step of removing at least a part of the liquid medium from the coated film to obtain a thermal insulating material.
Claims13
A method for manufacturing a thermal insulating material, the method comprising:
- applying a coating liquid onto a substrate under a pressure of 1.5 MPa or less with a coater configured to exert the pressure on the coating liquid, to obtain a coated film,
- wherein the coating liquid is obtained by mixing aerogel particles, a water-soluble polymer having a hydrophobic group, and a liquid medium under conditions that cause aggregation of the aerogel particles and that result in the coating liquid having, when a diluted solution of the coating liquid is subjected to observation with an optical microscope, an area occupied by the aggregates having a diameter of 20 μm or more relative to an area occupied by the aerogel particles and the aggregates of the aerogel particles within an observation visual field of 50% or more;
- and
- removing at least a part of the liquid medium from the coated film to obtain the thermal insulating material.
Dependencies are inferred from the claim text.