METHOD FOR PRODUCING FIBROUS CARBON NANO STRUCTURE DISPERSION

• Main Authors: YAMAGISHI TOMOKO, UEJIMA MITSUGI
• Format: Patent
• Language: English; Japanese
• Published: 10.10.2019
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

To provide a method for efficiently producing a fibrous carbon nano structure dispersion excellent in long-term stability while preventing the occurrence of bubbling during dispersion treatment.SOLUTION: A method for producing a fibrous carbon nano structure dispersion includes a step of subjecting a composition containing a fibrous carbon nano structure and a solvent to dispersion treatment. When a content of a dispersant in the composition is 0 pt.mass or more and less than 60 pts.mass based on 100 pts.mass of the fibrous carbon nano structure, and the dispersion treatment is conducted by using a medialess disperser 1 including a stator 3 and a rotor 2, a product S×W of a peripheral velocity S (m/s) of the rotor 2 and a ratio W of a maximum value W1 (m) of a width of a slit 4 to a minimum value W2 (m) thereof, during the dispersion treatment, is 10-200.SELECTED DRAWING: Figure 1 【課題】分散処理の際の泡立ちを抑制しつつ、長期安定性に優れる繊維状炭素ナノ構造体分散液の効率的製造方法の提供。【解決手段】繊維状炭素ナノ構造体と、溶媒とを含有する組成物に分散処理を施す工程を含む、繊維状炭素ナノ構造体分散液の製造方法であって、組成物中の分散剤の含有量を繊維状炭素ナノ構造体１００質量部当たり０質量部以上６０質量部未満とし、分散処理を、ステーター３とローター２を備えるメディアレス分散機１を用いて行い、分散処理の際のローター２の周速Ｓ（ｍ／ｓ）と、スリット４の幅の最小値Ｗ２（ｍ）に対する最大値Ｗ１（ｍ）の比Ｗとの積Ｓ×Ｗの値が、１０以上２００以下である製造方法。【選択図】図１