CAJ | 학술논문

利用离子液体1-丁基-3-甲基咪唑氯（[Bmim]Cl）溶解PH-101微晶纤维素，通过不同的再生方法获得两种再生的纤维素，并利用XRD确定其结晶度，场发射扫描电镜（SEM）获得其形貌特征，热重（TG）分析表征其热稳定性。采用Py-GC/ MS对不同结晶度纤维素进行快速热解，并对热解挥发分进行在线分析，观察结晶度对纤维素热解特性的影响。研究表明左旋葡聚糖产率随结晶度降低而减少，而小分子产物随结晶度降低而增多。
이용리자액체1-정기-3-갑기미서록（[Bmim]Cl）용해PH-101미정섬유소，통과불동적재생방법획득량충재생적섬유소，병이용XRD학정기결정도，장발사소묘전경（SEM）획득기형모특정，열중（TG）분석표정기열은정성。채용Py-GC/ MS대불동결정도섬유소진행쾌속열해，병대열해휘발분진행재선분석，관찰결정도대섬유소열해특성적영향。연구표명좌선포취당산솔수결정도강저이감소，이소분자산물수결정도강저이증다。
Microcrystalline cellulose PH-101 was dissolved by the ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl). Two kinds of regenerated cellulose with lower crystallinity (C1 and C2) were obtained by different regeneration methods. XRD was used to determine crystallinity of materials, thermogravimetric (TG) was used to determine thermal stability, and scanning electron microscopy (SEM) was used to observe the difference of morphology. The effect of crystallinity on pyrolysis characteristics of cellulose was obtained by analyzing the pyrolysis products from the cellulose with different degrees of crystallinity. Py-GC/MS results showed that the cellulose with lower degree of crystallinity had lower levoglucosan yield but higher yield of small molecule components.