【摘要】 探讨了新型纤维素纤维原料纤维素氨基甲酸酯的生产工艺,指出当纤维素浆粕活化用氢氧化钠溶液质量分数为14％～16％,活化温度40～50℃,活化时间为30～40min,尿素与纤维素的质量比(2:1)～ (3:1),反应时间为2-3 h时,纤维素氨基甲酸酯可在氧氧化钠溶液中形成良好的稳定溶液,其过滤性好, 可直接用于纺丝。更多还原

【Abstract】 A process for manufacturing a new cellulose material, cellulose carbamate, was discussed. The stable solution of CC with good filtration efficiency can be obtained in sodium hydroxide solution under the conditions of 14% ?16% sodium hydroxide solution for cellulose pulp activation by mass fraction, activation temperature 40-50℃ and time 30-40 min, mass ratio of carbamide and cellulose (2:1)-(3:1), reaction time 2-3 h. The obtained solution can be directly used for spinning.更多还原