Polymer material molded product, fixing member, method for producing fixing member, fixing device, and image forming apparatus

Patent metadata

Field	Value
Publication number	US-11774885-B2
Application number	US-202217722394-A
Country	US
Kind code	B2
Filing date	Apr 18, 2022
Priority date	Oct 14, 2021
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A polymer material molded product includes a polymer material and a porous carbon material having an X-ray diffraction spectral characteristic shown in the following (1) or (2),
(1): a peak derived from a (002) plane of carbon is observed, a half width of the peak derived from the (002) plane of carbon is 5° or more, and a half width of a peak derived from a (10) plane of carbon is 3.2° or less, and (2): the peak derived from the (002) plane of carbon is not observed, and the half width of the peak derived from the (10) plane of carbon is 3.2° or less.

First claim

What is claimed is:

1. A polymer material molded product comprising:
a polymer material; and
a porous carbon material, wherein the porous carbon material is graphene mesosponge, and a porosity of the graphene mesosponge is 50% by volume or more and 80% by volume or less, and the porous carbon material has an X-ray diffraction spectral characteristic shown in the following (1) or (2),
(1): a peak derived from a (002) plane of carbon is observed, a half width of the peak derived from the (002) plane of carbon is 5° or more, and a half width of a peak derived from a (10) plane of carbon is 3.2° or less, and
(2): the peak derived from the (002) plane of carbon is not observed, and the half width of the peak derived from the (10) plane of carbon is 3.2° or less.

2. The polymer material molded product according to claim 1 ,
wherein the half width of the peak derived from the (10) plane of carbon is 1.2° or more and 3.2° or less.

3. The polymer material molded product according to claim 2 ,
wherein the porous carbon material has a Raman spectroscopic characteristic shown in the following (3),
(3): a ratio (G′/G) of a peak intensity (G′) of a G′ band measured near 2,670 cm −1 and a peak intensity (G) of a G band measured near 1,590 cm −1 by a Raman spectroscopy is 0.6 or more.

4. The polymer material molded product according to claim 2 ,
wherein the porous carbon material has a BET specific surface area of 800 m 2 /g or more and 2,600 m 2 /g or less.

5. The polymer material molded product according to claim 1 ,
wherein the porous carbon material has a Raman spectroscopic characteristic shown in the following (3),
(3): a ratio (G′/G) of a peak intensity (G′) of a G′ band measured near 2,670 cm −1 and a peak intensity (G) of a G band measured near 1,590 cm −1 by a Raman spectroscopy is 0.6 or more.

6. The polymer material molded product according to claim 1 ,
wherein the porous carbon material has a BET specific surface area of 800 m 2 /g or more and 2,600 m 2 /g or less.

7. The polymer material molded product according to claim 1 ,
wherein an average secondary particle size of the porous carbon material is 5 nm or more and 10 μm or less.

8. The polymer material molded product according to claim 7 ,
wherein an average primary particle size of the porous carbon material is 1 nm or more and 1 μm or less.

9. The polymer material molded product according to claim 1 ,
wherein a content of the porous carbon material is 2% by volume or more and 10% by volume or less with respect to the polymer material molded product.

10. The polymer material molded product according to claim 1 ,
wherein the polymer material is an elastic material.

11. The polymer material molded product according to claim 1 , further comprising:
carbon nanotubes.

12. The polymer material molded product according to claim 11 ,
wherein the carbon nanotubes have an average length of 5 μm or more.

13. The polymer material molded product according to claim 11 ,
wherein a content of the carbon nanotubes is 1% by volume or more and 3% by volume or less with respect to the polymer material molded product.

14. The polymer material molded product according to claim 11 ,
wherein a content of the carbon nanotubes is 0.5% by volume or more and 4% by volume or less with respect to the polymer material molded product.

15. The polymer material molded product according to claim 1 ,
wherein the polymer material molded product has a thermal conductivity of 1.5 W/m·K or more.

16. The polymer material molded product according to claim 15 ,
wherein the polymer material molded product has a Young's modulus of 1.0 MPa or less.

17. A fixing member comprising:
a base material; and
an elastic layer provided on the base material and consisting of the polymer material molded product according to claim 1 .

18. A fixing device comprising:
a first rotating body; and
a second rotating body arranged in contact with an outer surface of the first rotating body,
wherein at least one of the first rotating body or the second rotating body is the fixing member according to claim 17 .

19. An image forming apparatus comprising:
an image holder;
a charging device that charges a surface of the image holder;
a latent image forming device that forms a latent image on the charged surface of the image holder;
a developing device that develops the latent image by a toner to form a toner image;
a transfer device that transfers the toner image to a recording medium; and
the fixing device according to claim 18 that fixes the toner image to the recording medium.

20. A polymer material molded product comprising:
a polymer material; and
a porous carbon material, wherein the porous carbon material is graphene mesosponge, and a porosity of the graphene mesosponge is 50% by volume or more and 80% by volume or less,
wherein a thermal conductivity of the polymer material molded product is 1.5 W/m·K or more, and
a Young's modulus of the polymer material molded product is 1.0 MPa or less.

21. A polymer material molded product comprising:
a polymer material; and
a porous carbon material having an X-ray diffraction spectral characteristic shown in the following (1) or (2),
(1): a peak derived from a (002) plane of carbon is observed, a half width of the peak derived from the (002) plane of carbon is 5° or more, and a half width of a peak derived from a (10) plane of carbon is 3.2° or less, and
(2): the peak derived from the (002) plane of carbon is not observed, and the half width of the peak derived from the (10) plane of carbon is 3.2° or less; and
wherein the polymer material molded product further comprises carbon nanotubes, and wherein a content of the carbon nanotubes is 0.5% by volume or more and 4% by volume or less with respect to the polymer material molded product.

22. The polymer material molded product according to claim 21 ,
wherein a content of the carbon nanotubes is 1% by volume or more and 3% by volume or less with respect to the polymer material molded product.

Assignees

• Fujifilm Business Innovation Corp

Inventors

• Kajiwara Kenji
• Inagaki Tomotake
• Yoshikawa Ryohei
• Omori Kenji
• Kubota Ryosuke
• Kimura Jun
• Ohara Hideaki

Classifications

• G03G15/20 Primary

  for fixing, e.g. by using heat · CPC title

• C01B32/158

  Carbon nanotubes · CPC title

• C01B32/182

  Graphene · CPC title

• C08L83/06

  containing silicon bound to oxygen-containing groups (C08L83/12 takes precedence) · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title