	US 12,459,825 B2
	Hydrophobic aerogel and method for manufacturing the same
Hyung Ho Park, Seoul (KR); Young Hun Kim, Gyeonggi-do (KR); Ji Hun Lee, Gyeonggi-do (KR); and Sang Hyun Kim, Gyeonggi-do (KR)
Assigned to UIF (University Industry Foundation), Yonsei University, Seoul (KR)
Filed by UIF (University Industry Foundation), Yonsei University, Seoul (KR)
Filed on Sep. 7, 2022, as Appl. No. 17/939,555.
Claims priority of application No. 10-2021-0119008 (KR), filed on Sep. 7, 2021; and application No. 10-2021-0155593 (KR), filed on Nov. 12, 2021.
Prior Publication US 2023/0083857 A1, Mar. 16, 2023
Int. Cl. C01B 33/158 (2006.01); C01B 33/154 (2006.01); F16L 59/02 (2006.01)

CPC C01B 33/1585 (2013.01) [C01B 33/154 (2013.01); F16L 59/028 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01); C01P 2006/32 (2013.01)]

3 Claims

1. A method for manufacturing a hydrophobic aerogel, comprising the steps of:

(1) preparing a mixed solution of a silicate-based compound, an organosilane-based compound and a surfactant,

wherein the weight ratio of the surfactant and the organosilane-based compound is 1:0.1 to 10, and

the surfactant is a hydrophobic surfactant having an HLB value of 1 to 8;

(2) preparing a hydrogel comprising a plurality of fine aerogel powder particles by adding an acid and a non-polar solvent to the mixed solution and stirring; and

(3) drying the hydrogel to manufacture a hydrophobic aerogel.