Aerogel blanket

Patent metadata

Field	Value
Publication number	US-2022371902-A1
Application number	US-202017621830-A
Country	US
Kind code	A1
Filing date	Sep 3, 2020
Priority date	Sep 3, 2019
Publication date	Nov 24, 2022
Grant date	—

Abstract

The present invention provides an aerogel blanket including a blanket base, aerogel coupled on the surface of the blanket base, and aerogel located at a space between the blanket bases, the aerogel coupled on the surface of the blanket base is 50 wt % based on the total weight of aerogel, wherein the aerogel blanket has the number of aerogel particles separated from the aerogel blanket ranging from 13,600 to 90,000 per ft3, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

First claim

1 . An aerogel blanket comprising:
a blanket base; aerogel coupled on the surface of the blanket base; and aerogel located at a space between the blanket bases; wherein the aerogel blanket has the number of aerogel particles separated from the aerogel blanket ranging from 13,600 to 90,000 per ft 3 , when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

2 . The aerogel blanket of claim 1 , wherein the aerogel blanket has a rate of increase in thermal conductivity after the vibration of 1.5% or less, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

3 . The aerogel blanket of claim 1 , wherein the aerogel blanket has a rate of increase in thermal conductivity after the vibration ranging from 0.10% to 1.45%, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

4 . The aerogel blanket of claim 1 , wherein the aerogel blanket has the number of aerogel particles ranging from 10,000 to 58,000 per ft 3 , which are separated from the aerogel blanket and have a particle diameter of more than 0.5 μm to 1.0 μm or less, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

5 . The aerogel blanket of claim 1 , wherein the aerogel blanket has the number of aerogel particles ranging from 3,000 to 28,000 per ft 3 , which are separated from the aerogel blanket and have a particle diameter of more than 1.0 μm to 2.0 μm or less, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

6 . The aerogel blanket of claim 1 , wherein the aerogel blanket has the number of aerogel particles ranging from 500 to 4,000 per ft 3 , which are separated from the aerogel blanket and have a particle diameter of more than 2.0 μm to 5.0 μm or less, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

7 . The aerogel blanket of claim 1 , wherein the aerogel blanket has the number of aerogel particles ranging from 10 to 700 per ft 3 , which are separated from the aerogel blanket and have a particle diameter of more than 5.0 μm to 10 μm or less, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours,

8 . The aerogel blanket of claim 1 , wherein the aerogel blanket has a rate of weight reduction after the vibration is 0.3 wt % or less, when vibrating the aerogel blanket at a frequency of 1 Hz to 30 Hz for 2 hours to 10 hours.

9 . The aerogel blanket of claim 1 , wherein the aerogel blanket is a hydrophilic silica aerogel blanket or a hydrophobic silica aerogel blanket.

10 . The aerogel blanket of claim 1 , which is produced by a production method comprising:
1. adding a catalyzed sol and a blanket base to a reaction container to impregnate the catalyzed sol into the blanket base; and 2. gelating the blanket base impregnated with the catalyzed sol while rotating the blanket base.

11 . The aerogel blanket of claim 10 , which is produced by the production method in which the blanket base wound around the bobbin is added to the reaction container and rotating the bobbin allows the blanket base impregnated with the catalyzed sol to rotate.

12 . The aerogel blanket of claim 10 , which is produced by the production method in which the impregnation in step 1) is performed while the blanket base rotates.

13 . The aerogel blanket of claim 10 , which is produced by the production method further comprising:
after step 2), aging; and surface-modifying.

14 . The aerogel blanket of claim 13 , which is produced by the production method in which the aging and the surface-modifying are carried out in the reaction container, and each step is carried out while rotating a wet-gel blanket composite prepared in step 2) above.

Assignees

• Lg Chemical Ltd

Inventors

• Kang Tae Gyeong
• Kim Bong June
• Baek Se Won
• Jeon Hyun Woo
• Yu Sung Min
• Kim Young Hun
• Park Sang Woo

Classifications

• Y02E60/13

  Energy storage using capacitors · CPC title

• C01P2006/32

  Thermal properties · CPC title

• C04B30/02 Primary

  containing fibrous materials · CPC title

• C01B33/158

  Purification; Drying; Dehydrating · CPC title

• C01B33/155

  Preparation of hydroorganogels or organogels · CPC title