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首页> 外国专利> PREPARATION METHOD OF UNIFORM CELLULOSE SOLUTION COMPRISING PREPARING N-METHYLMORPHOLINE N-OXIDE SOLUTION CONTAINING POLY(VINYL ALCOHOL) AND MIXING, SWELLING AND DISSOLVING THE SOLUTION AND CELLULOSE POWDER IN EXTRUDER, CELLULOSE SOLUTION PREPARED BY THE METHOD, AND CELLULOSE MOLDED PRODUCT PREPARED FROM THE SOLUTION

PREPARATION METHOD OF UNIFORM CELLULOSE SOLUTION COMPRISING PREPARING N-METHYLMORPHOLINE N-OXIDE SOLUTION CONTAINING POLY(VINYL ALCOHOL) AND MIXING, SWELLING AND DISSOLVING THE SOLUTION AND CELLULOSE POWDER IN EXTRUDER, CELLULOSE SOLUTION PREPARED BY THE METHOD, AND CELLULOSE MOLDED PRODUCT PREPARED FROM THE SOLUTION

机译：一种均一的纤维素溶液的制备方法，包括：制备包含聚（乙烯醇）的N-甲基二甲基环氧化物N-氧化物溶液，并混合该溶液和由该方法制备的纤维素溶液制备的纤维素溶液，在溶液中溶解并溶解纤维素粉末。

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PURPOSE: Provided are a method for preparing a uniform cellulose solution even at a low temperature by preventing the formation of film on the surface of cellulose powder due to the use of liquid concentrated N-methylmorpholine N-oxide of high temperature, a cellulose solution prepared by the method and a cellulose molded product prepared from the solution. CONSTITUTION: The method comprises the steps of dissolving 0.1-10 wt% of poly(vinyl alcohol) in liquid concentrated N-methylmorpholine N-oxide to prepare an N-methylmorpholine N-oxide (NMMO) solution; and supplying the obtained NMNO solution and a cellulose powder into an extruder, and mixing, swelling and dissolving the mixture in the extruder to prepare a cellulose solution. Preferably the poly(vinyl alcohol) has a degree of polymerization of 500-6,000 and a degree of saponification of 80-99.9 %, and the cellulose powder has an apparent diameter of 500 micrometers or less. Preferably the final cellulose solution contains 3-20 wt% of cellulose.
机译：目的：提供了一种通过在高温下通过使用液态浓缩的N-甲基吗啉N-氧化物来防止在纤维素粉末表面上形成膜来制备均匀的纤维素溶液的方法，通过该方法和由该溶液制备的纤维素模塑产品。组成：该方法包括以下步骤：将0.1-10重量％的聚乙烯醇溶解在液体浓缩的N-甲基吗啉N-氧化物中以制备N-甲基吗啉N-氧化物（NMMO）溶液;将所获得的NMNO溶液和纤维素粉末供给到挤出机中，并且在挤出机中混合，溶胀和溶解该混合物以制备纤维素溶液。优选地，聚乙烯醇的聚合度为500-6,000，并且皂化度为80-99.9％，并且纤维素粉末的表观直径为500微米或更小。优选地，最终的纤维素溶液包含3-20重量％的纤维素。

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