Aerogel composite powder

1. An aerogel composite powder comprising:

an aerogel component; and

a silica particle,

wherein the aerogel composite powder comprises a ladder-type structure including struts and a bridge, wherein the bridge has a structure represented by the following formula (2):

wherein R 5 and R 6 each independently represent an alkyl group or an aryl group; and b represents an integer of 1 to 50.

2. The aerogel composite powder according to claim 1 , having: a three-dimensional network skeleton formed of the aerogel component and the silica particle; and

a pore.

3. An aerogel composite powder comprising a silica particle as a component constituting a three-dimensional network skeleton, wherein the aerogel composite powder comprises a ladder-type structure including struts and a bridge, wherein the bridge has a structure represented by the following formula (2):

wherein R 5 and R 6 each independently represent an alkyl group or an aryl group; and b represents an integer of 1 to 50.

4. An aerogel composite powder as a dried product of a wet gel, wherein the wet gel is a condensate of a sol comprising:

a silica particle; and

at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group or a condensable functional group and a hydrolysis product of the silicon compound having a hydrolyzable functional group,

wherein the silicon compound further comprises a polysiloxane compound having a hydrolysable functional group or a condensable functional group, and

wherein the polysiloxane compound includes a compound having a structure represented by the following formula (B):

wherein R 1b represents an alkyl group, an alkoxy group, or an aryl group; R 2b and R 3b each independently represent an alkoxy group; R 4b and R 5b each independently represent an alkyl group or an aryl group; and m represents an integer of 1 to 50.

5. The aerogel composite powder according to claim 1 , as a dried product of a wet gel, wherein the wet gel is a condensate of a sol comprising: a silica particle; and at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group or a condensable functional group and a hydrolysis product of the silicon compound having a hydrolyzable functional group.

6. The aerogel composite powder according to claim 1 , having a ladder-type structure represented by the following formula (3):

wherein R 5 , R 6 , R 7 , and R 8 each independently represent an alkyl group or an aryl group; a and c each independently represent an integer of 1 to 3000; and b represents an integer of 1 to 50.

7. The aerogel composite powder according to claim 1 , wherein an average primary particle diameter of the silica particle is 1 to 500 nm.

8. The aerogel composite powder according to claim 1 , wherein a shape of the silica particle is spherical.

9. The aerogel composite powder according to any claim 1 , wherein the silica particle is an amorphous silica particle.

10. The aerogel composite powder according to claim 9 , wherein the amorphous silica particle is at least one selected from the group consisting of a fused silica particle, a fumed silica particle, and a colloidal silica particle.

11. The aerogel composite powder according to claim 1 , wherein an average particle diameter D50 is 1 to 1000 μm.

12. The aerogel composite powder according to claim 3 , as a dried product of a wet gel, wherein the wet gel is a condensate of a sol comprising: a silica particle; and at least one selected from the group consisting of a silicon compound having a hydrolyzable functional group or a condensable functional group and a hydrolysis product of the silicon compound having a hydrolyzable functional group.

13. The aerogel composite powder according to claim 3 , having a ladder-type structure represented by the following formula (3):

wherein R 5 , R 6 , R 7 , and R 8 each independently represent an alkyl group or an aryl group; a and c each independently represent an integer of 1 to 3000; and b represents an integer of 1 to 50.

14. The aerogel composite powder according to claim 3 , wherein an average primary particle diameter of the silica particle is 1 to 500 nm.

15. The aerogel composite powder according to claim 3 , wherein a shape of the silica particle is spherical.

16. The aerogel composite powder according to any claim 3 , wherein the silica particle is an amorphous silica particle.

17. The aerogel composite powder according to claim 16 , wherein the amorphous silica particle is at least one selected from the group consisting of a fused silica particle, a fumed silica particle, and a colloidal silica particle.

18. The aerogel composite powder according to claim 3 , wherein an average particle diameter D50 is 1 to 1000 μm.

19. The aerogel composite powder according to claim 4 , wherein an average primary particle diameter of the silica particle is 1 to 500 nm.

20. The aerogel composite powder according to claim 4 , wherein a shape of the silica particle is spherical.