Composite material, sheet, and heat insulator
A composite material containing aerogel particles and at least one cellulose-based resin selected from the group consisting of cellulose and a cellulose derivative, in which a content of the aerogel particles is 95 vol % or more. A sheet containing the composite material, and a heat insulator containing the composite material.
1. A composite material comprising:
aerogel particles; and
a cellulose derivative having an alkyl group having 6 to 26 carbon atoms,
wherein a content of the aerogel particles is 95 vol % or more.
2. The composite material according to claim 1 , wherein the cellulose derivative has a structural unit represented by Formula (A-1)
wherein R A represents a hydrogen atom, an alkyl group, a hydroxyalkyl group, or a group represented by —R A1 —O—R A2 (in which R A1 represents an alkanediyl group and R A2 represents an alkyl group), and
wherein at least one instance of R A in the Formula (A-1) is the alkyl group having 6 to 26 carbon atoms or a group represented by —R A1 —O—R A2 (in which RAI represents an alkandiyl group and R A2 represents the alkyl group having 6 to 26 carbon atoms).
3. A sheet comprising the composite material according to claim 1 .
4. A heat insulator comprising the composite material according to claim 1 .
5. A composite material comprising:
aerogel particles; and
at least one cellulose-based resin selected from the group consisting of cellulose and a cellulose derivative,
wherein a content of the aerogel particles is 95 vol % or more, and
wherein a content of the cellulose-based resin is 0.1 vol % or more and 3 vol % or less.
6. A sheet comprising the composite material according to claim 5 .
7. A heat insulator comprising the composite material according to claim 5 .
8. A composite material comprising:
aerogel particles;
at least one cellulose-based resin selected from the group consisting of cellulose and a cellulose derivative; and
a binder resin,
wherein a content of the aerogel particles is 95 vol % or more.
9. The composite material according to claim 8 , wherein a content of the binder resin is 0.1 vol % or more and 4 vol % or less.
10. A sheet comprising the composite material according to claim 8 .
11. A heat insulator comprising the composite material according to claim 8 .