Sheet
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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SUBJECT of the Invention This invention makes it a subject to provide the microfibrous cellulose containing sheet|seat excellent in the weather resistance. PROBLEM to be solved This invention is a sheet|seat in which a fiber width contains fibriform cellulose 1000 nm or less， Comprising: Fibriform cellulose has phosphorus oxo-acid group， Let the 1st dissociation acid amount in fibriform cellulose be A1， When the total dissociation acid amount in fibriform cellulose is made into A2， The values of A1/A2 are 0.61-1.00， YI increase rate computed by the following formula is related with the sheet|seat which is 1500 % or less. YI increase rate (%) = (Yellowness of the sheet|seat of yellowness-pre-heating of the sheet|seat after a heating) / yellowness of a pre-heating sheet|seat x 100 In said Formula， the yellowness of the sheet|seat after a heating is the yellowness measured based on JISK7373， after hot-pressing a sheet|seat for 1 minute at 180 degreeC and 0.5 Mpa， The yellowness of a pre-heating sheet|seat is the yellowness measured before hot press based on JISK7373. SELECTED DRAWINGS Absence
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国家林业和草原科学数据中心
创建时间：
2023-02-12
