查询词典 alkali cellulose

As the result of determined and compare test, the cotton fabrics scoured with cellulose and pectase is of the same characteristic as alkali scouring in capillary effect, whiteness, breaking strength, K/S value.

在这过程中大多数的非纤维杂质在强碱的作用下变得具有可溶性，通过充分的水洗可将之去除。

In order to modify the recycled fiber, this study was to investigate the variations of the fiber and paper properties after paper recycling, reusing, and re-processing. Three methods for upgrading the recycled fiber, included alkali socking, enzyme treatment, and adding carboxymethyl cellulose to enhance the fiber strength, extend the fiber service life, and reduce the use of the virgin pulp.

中文摘要本论文探讨纸张的回收-利用-再生过程中纤维性质及纸张性质的变化，以做为后续纤维及纸张性质的改良，并分别继续使用碱处理、酵素处理及添加CMC的方法将再生后纤维改质，以期达到增强或改善纸张性质，进而提高再生纤维的使用范围、延长纤维的使用时间绵续纤维之生命周期与减少利用原生纸浆之多项目的。

Treatment of purified wood pulp with 18% sodium hydroxide solution produces alkali cellulose.

用18%氢氧化钠溶液处理纯化木浆生产出碱性纤维素。

The result shows that the structure and property of alkali cellulose and PAC is hardly dependent on the organic solvent in the manufacturing process.

同时借助1H-NMR、化学滴定法表征了不同介质中纤维素羧甲基化产物大分子的一级结构。

The findings of present work show that organic/water ratio,alkali metal alkali, phase transfer catalyst, reaction time, reaction temperature, all of them have influence to the molecular weight and yield of the production.

详细研究了溶剂/水的配比、碱金属碱、相转移催化剂、反应温度、反应时间等因素对产品分子量和产率的影响。

Control experiment results of white soil acidification with alkali treatment or not shows that alkali treatment is the key to 4A zeolite preparation.

进一步对酸化白土进行碱处理的对照实验，得出进行碱处理是制备4A分子筛的关键。

The saline alkali soil in Jilin province was formed under semiarid and semi moist weather which was distributed in bai cheng region. And the western grassland is the important animal husbandry base in Jilin province. So as far as the development of western animal husbandry and the goal of becoming an ecological province is concerned, it is of important significance that people turn the saline alkali soil into arable soil.

吉林省内的盐碱土，是在半湿润半干旱气候条件下形成的内陆型盐碱土，主要分布于西部的白城地区，而西部草原又是重要的牧业生产基地，因此，将这些盐碱化的土壤转变为可以耕种的土壤，对西部牧业的发展和实现生态省建设的目标来说，具有重大的意义。

The invention relates to a method for the extraction of keratin from dead animal skins, characterised in the treatment of dead animal skins with a substance of general formula, or at least one corresponding alkali metal, earth alkali metal, ammonium, or phosphonium salt, the variables having the following definitions: R, R = together or independently, H, C6-C14 aryl, C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, R, R = together or independently, H, C6-C14 aryl, C1-C12 alkyl, unsubstituted or substituted with one or several SH or OH groups, whereby at least one of R or R is not H, or R and R are not H and two vicinal groups of R to R together may be C3-C10 alkylene, R = H, C1-C12 alkyl, H-C=O or C1-C4-Alkyl-C=O, X, X, X and X = OH, SH or NHR, whereby where Rto R contains at least one sulphur atom, at least one of X to X = SH and where R to R contains no sulphur atom, at least two of X to X= SH.

本发明涉及一种从死亡动物原皮中除去角质的方法，其特征在于用通式I的物质或至少一种对应的碱金属盐、碱土金属盐、铵盐或∴盐处理死亡动物原皮，式I中各变量定义如下：R 1 和R 4 相同或不同且选自氢、C 6 -C 14 芳基和C 1 -C 12 烷基，其未被取代或被一个或多个SH或OH基团取代；R 2 和R 3 相同或不同且选自氢、C 6 -C 14 芳基和C 1 -C 12 烷基，其未被取代或被一个或多个SH或OH基团取代，其中至少一个基团R 2 或R 3 不为氢，或R 1 和R 4 不为氢，且两个相邻基团R 1 -R 4 可以一起为C 3 -C 10 亚烷基；R 5 选自氢、C 1 -C 12 烷基、H-C＝O或C 1 -C 4 烷基-C＝O；X 1 、X 2 、X 3 和X 4 选自OH、SH和NHR 5 ，其中若R 1 -R 4 含有至少一个硫原子，则至少一个基团X 1 -X 4 为SH，以及若R 1 -R 4 不含硫原子，则至少两个基团X 1 -X 4 为SH。

Tuyon volcanic rocks are classified as alkali series, which are low in silicon, enrichedin alkali, especially enriched in kalium. The types of the volcanic rocks include trachybasalt,basanite, basalt,and phonolitic basalt.

托云火山岩具贫硅富碱，特别是富钾的特点，属于碱性系列，岩石的类型包括粗面玄武岩、碧玄岩、玄武岩、响岩质玄武岩。

With the increasing of the concentration of alkali, the content of insolubility of the product reduces initially but increases later, the DS of product increases initially then reduces later. The product has good solubility and high DS at 10% content of alkali. The insoluble product reduces at initially and then keeps stability later with the time of basification extending. With the increasing of the content of water in system, theinsolubility of the product reduces initially and then increases later.

随着碱浓度的增加，产物中水不溶物含量先降低后增加，取代度先上升后下降，在10％时，水溶性最好，取代度最高；延长碱化时间，产物中水不溶物含量下降，之后趋于稳定；提高反应体系中水的含量，产物中水不溶物含量先降低后增加，在7％时，水溶性最好，延长分散时间，产物中水不溶物含量下降，取代度提高；醚化剂以少量多次的方式滴加，产物水溶性好。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。