A method of producing oxidized or microfibrillated cellulose
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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资源简介：
The invention relates to a method of producing oxidized or microfibrillated cellulose (MFC). According to the invention there is provided an aqueous pulp suspension with a consistency of at least 15 %， and at least one oxidant is added to the suspension to oxidize cellulosic hydroxyl groups in the suspension under mechanical mixing or shearing. The oxidized suspension， washed and diluted to a lower consistency， is subjected to homogenization to yield gel-like MFC. Alkali hypochlorite may be used as oxidant， and preferred mediating oxidation catalysts are AZADO and TEMPO. Alkali bromide may be used as a cocatalyst. The MFC product， which as a suspension has an increased viscosity， is suitable as a means of regulating viscosity or for production of films and composites.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
