CAJ | 학술논문

为探索木粉在1-烯丙基-3-甲基咪唑氯盐（[ AMIM][ Cl]）中的溶解和降解问题，研究了预处理方式、溶解温度和时间以及液固比等对扶桑枝条木粉在[ AMIM][ Cl]中的溶解率和析出率的影响；分析了影响木粉溶解的关键因素；探讨了阻碍木粉完全溶解的机制。结果表明：预处理方式和溶解温度是影响溶解的最重要因素，用5％ NaOH预处理木粉，溶解温度为80℃时，木粉在[AMIM][Cl]中的溶解率达60．20％，析出率为46．57％，球磨、高浓度碱以及高温会加剧原料降解；木粉溶解率很高时，析出率较低，更多的是木粉中天然高聚物的降解，而非真正的溶解；较为温和的条件下，木粉难以全部溶解；木粉在[ AMIM][ Cl]中的溶解度以及溶液黏度并非阻碍木粉完全溶解的因素，可能是因未溶纤维表面形成了胶体阻止了溶解的继续进行。
위탐색목분재1-희병기-3-갑기미서록염（[ AMIM][ Cl]）중적용해화강해문제，연구료예처리방식、용해온도화시간이급액고비등대부상지조목분재[ AMIM][ Cl]중적용해솔화석출솔적영향；분석료영향목분용해적관건인소；탐토료조애목분완전용해적궤제。결과표명：예처리방식화용해온도시영향용해적최중요인소，용5％ NaOH예처리목분，용해온도위80℃시，목분재[AMIM][Cl]중적용해솔체60．20％，석출솔위46．57％，구마、고농도감이급고온회가극원료강해；목분용해솔흔고시，석출솔교저，경다적시목분중천연고취물적강해，이비진정적용해；교위온화적조건하，목분난이전부용해；목분재[ AMIM][ Cl]중적용해도이급용액점도병비조애목분완전용해적인소，가능시인미용섬유표면형성료효체조지료용해적계속진행。
The effects of pretreatment methods, dissolving temperature, dissolving time, and liquid-solid ratio on the dissolution rate and the precipitation rate of mulberry powder in [ AMIM] [ Cl] were studied. The key factors and the mechanism of impedinge wood completely dissolution were discussed. The test showed that pretreatment methods and dis-solving temperature were the most important factors. When wood powder pretreated with 5% NaOH dissolved at 80 ℃, and the dissolution rate and the precipitation rate was 60.20% and 46?57%, respectively. However, severe pretreatment such as ball milling or high concentrations of alkali or high temperature would exacerbate degradation. In the case of high dissolving rate but low precipitation rate, wood powder was more degradation than dissolution. On mild conditions, wood powder was difficult to be dissolved. Factors that hinder the wood powder dissolved was not solubility or riscosity,might be the formation of colloid.