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A kind of sheet and its manufacturing method

A manufacturing method, sheet technology, applied in chemical instruments and methods, textiles and papermaking, nanotechnology for materials and surface science, etc., which can solve problems such as handling and processability are not necessarily good

Active Publication Date: 2022-01-28
ZEON CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since fibrous carbon nanostructures such as CNTs are fine structures with a diameter of nanometers, handling properties and processability are not necessarily good as a monomer.

Method used

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  • A kind of sheet and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091]

[0092] Sodium dodecylbenzenesulfonate (SDBS) was used as a dispersant, water was used as a dispersion medium, and 500 mL of SDBS 1 mass % aqueous solution was prepared. 1.0 g of SGCNT (manufactured by Zeon Nano Technology Co., Ltd., "ZEONANO (registered trademark) SG101" as a single-layer CNT) was added thereto, BET specific surface area: 1050 m 2 / g, average diameter: 3.3nm, average length: 400μm, t-curve convex upward (inflection point position: 0.6nm), internal specific surface area S2 / total specific surface area S1: 0.24), to obtain a coarse dispersion containing SDBS as a dispersant liquid. This crude dispersion containing monolayer CNT was filled into a high-pressure homogenizer (manufactured by Beryu corp., product name "BERYUSYSTEM PRO") having a multi-stage pressure control device (multi-stage pressure reducer) that loads back pressure at the time of dispersion , the dispersion treatment of the coarse dispersion was carried out at a pressure of 100 MPa. S...

Embodiment 2

[0098] Instead of vinylon nonwoven fabric, PET nonwoven fabric (manufactured by Hirose seikou co., ltd., product number: 05TH-36, air permeability: 20cc / cm 2 / s) except having used it as a fibrous base material, it carried out similarly to Example 1, and obtained the sheet|seat. Various measurements and evaluations were performed on the obtained sheet according to the above-mentioned methods. The results are shown in Table 1.

Embodiment 3

[0100] A sheet was obtained in the same manner as in Example 2, except that the conditions of the contact step and the cleaning step were changed during production of the sheet. Various measurements and evaluations were performed on the obtained sheet according to the above-mentioned methods. The results are shown in Table 1.

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Abstract

The present invention provides a sheet comprising a fibrous base material and carbon nanotubes attached to fibers constituting the fibrous base material. Furthermore, the main component of the carbon nanotubes included in the sheet is single-walled carbon nanotubes.

Description

technical field [0001] The present invention relates to a sheet material and its manufacturing method. In particular, the present invention relates to a sheet containing carbon nanotubes and a method for producing the same. Background technique [0002] In recent years, carbon nanotubes (hereinafter, sometimes referred to as "CNT") have attracted attention as materials that are lightweight and have excellent electrical conductivity and mechanical properties. However, since a fibrous carbon nanostructure such as CNT is a fine structure with a diameter of nanometer size, handling property and processability are not necessarily good as a single substance. Therefore, it has been proposed, for example, to add a plurality of CNTs to a base material to form a sheet, and to apply the sheet to various applications. Examples of applications of such a sheet include electromagnetic wave absorption applications. As a specific sheet, for example, Patent Document 1 discloses a sheet in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/74
CPCD06M11/74H01B1/24D06M23/08D10B2101/122D10B2401/16Y10T428/27Y10T428/298C01B32/159C01B2202/32B82Y30/00
Inventor 山岸智子上岛贡西内友也高桥成彰
Owner ZEON CORP
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