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利用动态粘弹谱仪考察和分析了新型再生纤维素纤维的动态粘弹性能。结果表明,在-150℃-35O℃温度范围内,再生纤维素发生了复杂的松弛和转变,这些松弛和转变表明再生纤维素的结构非常复杂,而产生这一复杂性的根本原因是纤维素中大量的复杂的氢键作用及其运动。从帕弹性角度对氢键进行了讨论,首次提出了红键破碎区,同时首次发现了纤维素在更低温度下的y松弛。
Dynamic viscoelastic properties of new regenerated cellulose fibers were investigated and analyzed by dynamic viscoelastic spectroscopy. The results showed that the complex relaxation and transformation of regenerated cellulose occurred in the temperature range of -150 ℃ -35O ℃. These relaxation and transformation showed that the structure of regenerated cellulose was very complicated. The root cause of this complexity was cellulose In a large number of complex hydrogen bond and its movement. The hydrogen bond was discussed from the angle of Paratha elasticity. For the first time, the fragmentation region of red bond was proposed. At the same time, the y relaxation of cellulose at lower temperature was first discovered.