HPMC is prepared when a purified form of cellulose is reacted with sodium hydroxide solution to produce a swollen alkali cellulose that is chemically more reactive than untreated cellulose.
当被净化的纤维素与氢氧化纳溶液反应产生一种膨胀碱性纤维素时,HPMC就产生了,这种纤维素在化学上比没有经过处理的纤维素更易起反应。
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.
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。
Industrial application: soluble in water, aqueous alkali, ammonia and cellulose solution, colorless and insoluble in organic solution, mineral oil amorphous substance.
工业用途:溶于水、碱水溶液、氨和纤维素溶液,不溶于有机溶液、矿物油的无色无定型物。
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。
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。
The results showed that the cellulose carbon source which was pretreated with alkali had better denitrification rate (up to 96%), apart from the wooden skin.
结果表明,以碱处理作为预处理可明显提高反硝化速率,碳源脱氮率均在96%以上(树皮除外)。
When alkali cellulose is reacted with the sodium salt of chloroacetic acid, the sodium salt of the carboxymethyl ether (cellulose-O-CH2-CO2-Na +) is formed.
当碱性纤维素与盐酸的钠盐反应,羧甲基醚钠盐生成。
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。
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。
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