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.
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。
Viscose manufacturing process involves the reaction of cellulose with sodium hydroxide to form an alkali cellulose.
研究了蒸煮工艺中总碱量、硫化度以及蒸煮时间与纤维素含量的关系,并采用扫描电镜对蒸煮后的纤维进行了观测。
The effect of three kinds of factors on the content of cellulose, such as the alkalinity, sulfide degree and boiling time, was studied and the SEM of the boiled cellulose was observed.
从甜菜渣脱果胶样品中,利用碱提取法将纤维素和半纤维素分离。
The cellulose and the semi-cellulose were separated by sodium hydroxide solution from the pectin extracted beet waste.
铜在纤维素纤维中的富集都随外加量的增加而增加,碱有利于铜的富集,陈化铜富集能力大于新制铜。
Enrichment of copper in cellulose fibers are increased with the added amount increase. The addition of alkali can promote the enrichment, and the enrichment of fresh Cu is less than the aged Cu.
再将硝酸纤维素滤膜置于含碱的湿滤纸上, 碱的作用是使DNA变性。
The nitrocellulose filters are then placed on wet filter paper containing alkali, which denatures the DNA.
用作油漆清漆虫胶油墨胶粘剂染料生物碱醋酸纤维素硝化纤维素乙基纤维素聚乙烯醇缩丁醛等的溶剂金属表面清洗剂制造化工产品的重要原料。
Solvent for paints lacquers shell-lac inks adhesives dyestuff cellulose acetate nitro-cellulose ethyl cellulose etc can also be used in metal cleaning it is also a raw material for chemical synthesis.
由于草浆中含有大量的硅、半纤维素和杂细胞,碱法草浆的黑液粘度较大。
Due to large content of silicon, semi-cellulose and non-fiber elements, the black liquids of wheat straw alkaline pulp showed a higher viscosity.
硼高效品种悬浮细胞细胞壁提取率和半纤维素含量低于低效品种,碱溶性果胶含量高于低效品种,螯合剂可溶性果胶和纤维素含量品种间差异不显著。
Boron efficient rape cultivar had a lower wall ratio, a lower content of hemicellulose and a higher content of alkaline soluble pectin of the walls than boron inefficient cultivar.
探讨了半纤维素预提取对桉木纤维形态及碱法制浆后浆料性能的影响。
The effects of hemicellulose pre-extraction on eucalyptus fibre morphological characteristics and pulp properties after AQ-NaOH cooking were investigated in this paper.
在此工艺条件下,碱溶性半纤维素提取率为9.47%。
The yield of alkaline-hemicellulose under the conditions was 9.47%.
本发明提供了一种利用菌糠获取可转化底物的方法,包括稀碱预处理和纤维素酶糖化两个步骤。
The invention provides a method for obtaining a transformable substrate by using fungi leftovers, which comprises two steps of diluted alkaline pretreatment and cellulase saccharification.
考虑到现有漂白处理工艺的高温高碱条件,耐热、耐碱和低纤维素酶活的木聚糖酶成为生物漂白用木聚糖酶的首选。
As high temperature and high alkaline bleaching process, heat, alkali and low cellulase activity of xylanase is the first choice of xylanases for biobleaching .
碱烧伤阳性对照组和单纯甲基纤维素组均可见角膜浑浊呈瓷白色、表面粗糙,不能透见眼内结构。
In the alkali burn masculine control group and the pure methylcellulose group, corneas were polluted and porcelain white, the surfaces were rough, and the intraocular structure could not be seen.
在上述工艺条件下,水溶性半纤维素和碱溶性半纤维素的提取率分别为1.43%和9.02%。
With the optimum parameters, the extraction rates were 1.43% and 9.02% for water-soluble hemicellulose and alkaline-soluble hemicellulose respectively.
纤维素结晶被破坏;而当底物没有被碱溶胀,或被碱溶胀而没有黄原酸化时,接枝聚合没有明显引起纤维素结晶的变化。
It was found that the crystalline structure of cellulose could be destroyed by the synergetic effect of alkali swelling, xanthating and grafting;
纤维素结晶被破坏;而当底物没有被碱溶胀,或被碱溶胀而没有黄原酸化时,接枝聚合没有明显引起纤维素结晶的变化。
It was found that the crystalline structure of cellulose could be destroyed by the synergetic effect of alkali swelling, xanthating and grafting;
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