碱纤维素

Viscose Manufacturing process involves the reaction of cellulose with sodium hydroxide to form and alkali cellulose xanthate.

粘胶的生产过程包括纤维素与氢氧化钠反应形成碱纤维素的过程。碱纤维素再经二硫化碳处理制成纤维素黄酸酯。

The alkali cellulose is then treated with carbon disulfide to form cellulose xanthate.

碱纤维素再经二硫化碳处理制成纤维素黄酸酯。

Because of specificity and high efficiency, the catalytic efficiency of cellulase is high(more 103~1013 times than general catalysts), the condition of catalytic reaction is mild and the catalytic activation can be adjusted and controlled, which can improve remarkably semblance and handle of fabrics during finishing fabrics by biological catalyzing, moreover cellulase can replace some chemical materials such as acid, cocain, chlorine and phosphorus etc, so as to decrease pollution, make no waste-water and protect environment.

由于酶具有专一性和高效性，采用生物催化，其催化效率高比一般催化剂高10~3～10~(13倍，催化反应条件温和，催化活性可调节控制，应用在纺织品处理上，能显著改善织物的外观和手感，并能取代一部分酸、碱、氯、磷化合物等化工原料，从而减少污染，不产生污水，有利于环保和生态。而且酶本身又无毒，容易生物降解，不会引起环境污染，所以酶处理已被公认为是一种符合环保要求的绿色印染加工方法。本文选用了市场上常用的纤维素酶R-10和纤维素酶ECS2610两种生物酶。

In this paper,the conditions of separating cellulose and hemicellulose and acidolysising the cellulose to fermentable sugars were optimized.

本文以玉米芯为材料，对其纤维素和半纤维素的碱液分离以及纤维素裂解成可发酵糖的条件进行研究。

Effects of alkali concentration, extraction temperature, ratio of solid to liquid and extraction time on yields of xylan were analyzed.

以稻壳为原料，采用制备综纤维素再碱提取的方法，分析了不同碱溶液浓度、温度、固液比和时间对稻壳半纤维素中多戊糖得率的影响。

Viscose manufacturing process involves the reaction of cellulose with sodium hydroxide to form an alkali cellulose.

粘胶的生产过程包括纤维素与氢氧化钠反应形成碱纤维素的过程。

In this paper, aging time of alkali cellulose was confirmed by researching the effect of aging time of alkali cellulose to its ability of withstanding alkali; The effect of temperature, the mass ratio of intermediate to cellulose, time, NaOH concentration on the mass and capacity of product.

研究了碱纤维的老化时间对抗碱能力的影响，确定了碱纤维的老化时间；研究了氢氧化钠的用量、中间体与纤维素的质量比、反应温度和反应时间对产物质量和产物交换容量的影响，并用红外光谱对产物的结构进行了表征。

It indicated chemistry reaction occurred between cellulose and alkali and got alkaline cellulose.

碱与纤维素作用时，纤维素会发生化学作用生成新的化合物——碱纤维素；纤维素会发生物理化学作

The alkali cellulose is then treated with carbon disulfide to form cellulose xanthate.

碱纤维素再经二硫化碳处理制成纤维素磺酸酯。

The alkali solution concentration and steam explosion process condition were optimized by testing the solubility of soft cellulose after steam explosion before and after treatment towards aq.NaOH with various concentration. It was concluded that the soft cellulose can dissolve in the 9% aq.NaOH solution completely under the condition of explosion pressure 3.0Mpa and explosion time 60s. At the same time, the influence of sweller-thiourea on the new aq. alkali soluble cellulose/NaOH solution was studied in this paper. The dissolving phenomena and the steam explosion mechanism of soft cellulose were discussed.

本文通过对闪爆前后软木纤维素在不同浓度的稀碱溶液中溶解度的测试分析，优化了碱溶液浓度和最佳闪爆工艺条件，得出在闪爆压力超过3.0MPa，保压时间为60s的条件下，软木纤维素可完全溶解于9％的NaOH稀碱溶液中，并且对助溶剂-硫脲对碱可溶纤维素/NaOH水溶液的增溶效果进行了研究和探索，同时也对溶解机理和闪爆机理进行了分析讨论。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。