Amino-group-containing fiber, method of producing amino-group-containing fiber, product using amino-group-containing fiber, formed body, carbon dioxide sorbent including formed body, method of using carbon dioxide sorbent, and carbon dioxide separation/capture device
AssigneeToyobo Co., Ltd.
InventorsSatoru Nagai, Masaki Yahara, Hina Tanaka, Atsushi Kawasaki
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Abstract
An amino-group-containing fiber according to the present invention contains 2.0 mmol/g or more of amino groups and has a crosslinking structure, wherein the amino-group-containing fiber has a saturated moisture absorption/adsorption ratio of 10 mass % or more at 20° C. and 65% RH, and has a specific surface area of 10 to 60 m2/g and an average pore size of 10 to 1000 nm as measured by mercury porosimetry.
Claims26
An amino-group-containing fiber containing 2.0 mmol/g or more of amino groups and having a crosslinking structure, wherein
- the amino-group-containing fiber has a saturated moisture absorption/adsorption ratio of 10 mass % or more at 20° C. and 65% RH, and has a specific surface area of 10 to 60 m2/g and an average pore size of 10 to 1000 nm as measured by mercury porosimetry.
A method of producing an amino-group-containing fiber, the method comprising introducing a crosslinking structure and amino groups into a fiber by treating the fiber with an amino-group-containing organic compound, the fiber containing nitrile groups, the fiber having a specific surface area of 10 to 60 m2/g and an average pore size of 10 to 1000 nm as measured by mercury porosimetry, the amino-group-containing organic compound having a structure in which the total number of amino groups in one molecule is 3 or more, the number of primary amino groups is 2 or more, and the amino groups are bonded by an alkylene group in which the number of carbon atoms is 2.
A formed body of an amino-group-containing resin, the formed body comprising 2.0 mmol or more of amino groups per g of the formed body, wherein
- the formed body is provided with a macropore that is based on a pore classification of the International Union of Pure and Applied Chemistry, and
- the macropore has a specific surface area of 0.1 m2 or more per g of the formed body, and has a pore volume of 0.01 mL or more per g of the formed body.
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Dependencies are inferred from the claim text.