丙烷

The results show that when molar ratio of epichlorohydrin and dimethylamine is set as 1.5:1 and the amount of 1,2-diaminoethane is 3%, polyamine flocculants get the best viscosity and cationic degree and have excellent decoloration efficiency through the adsorption and subsequent formation of particle-polymer-particle bridges.

结果表明，环氧氯丙烷和二甲胺的摩尔比为1.5：1，乙二胺加入量为3%时，聚合物的粘度和阳离子度最大，具有较强的吸附架桥和电中和作用，对染料废水有较好的脱色效果。

The deoiling effect of the polymerized additives has been evaluated by means of aerated floatation process.The result shows that when dimethylamine,diethylamine or methylamine serves as amine and the molar ratio of ...

利用充气浮选法对所合成的药剂进行了除油效果的评价，结果表明：当胺为二甲胺、二乙胺、甲胺，聚合单体与环氧氯丙烷的摩尔比为1：2时，产品的除油效果最佳。

Production Principle and technology of THF_CPO copolyether diol are introduced.

介绍了四氢呋喃—环氧丙烷共聚醚二醇的生产原理及工艺，并对生产中影响其收率的因素进行了初步分析。

As for polyether PUA, a new hydrophilic diol was synthesized from trimethylol propane and maleic anhydride.

在聚醚型PUA中以三羟甲基丙烷和马来酸酐为原料，合成了一种新的亲水二元醇。

Effect of heat treatment on the ndcrophase separation of a segmented poly copolymer based on poly diol, 3, 5 dithyltoluene diandne and 4,4'-diphenylmethane diisocyanate has been studied bymeans of fourier transform infrared spectroscopy.

用傅里叶变换红外光谱方法研究了热处理对由聚环氧丙烷聚醚多元醇、3.5－二乙基甲苯二胺和4，4－二苯基甲烷二异氰酸酯组成的多嵌段聚氨酯脲的微相分离行为的影响。

Sometimes, dry ice particles or liquid propane are used.

有时，干冰颗粒或液体丙烷的使用。

This paper introduced the synthesis technics of low molecular weight bisphenol-A epoxy resin using BPA and ECH,and analyzed their advantages and disadvantages.

介绍了用双酚A和环氧氯丙烷制造低分子量环氧树脂的各种合成工艺，并对各种方法的优缺点进行了分析比较。

A kind of chitosan film crosslinked with ECH was successfully prepared.

以环氧氯丙烷为交联剂制备出交联壳聚糖膜。

The reaction of ECH and TMAC was investigated in microemulsion and non- by the analysis of various components with a combined method of LC-MS and GC-MS.

在微乳化和非微乳化条件下研究了环氧氯丙烷和三甲胺盐酸盐的反应。

A large molecular sizing agent modified AKD was prepared through the reaction between alkyl ketene dimmer and polyamide then cationization by epichlorohydrin. The large molecular sizing agent has high positive charge and emulsifiability.

摘 要：将聚酰胺多胺与AKD反应，并用环氧氯丙烷将其阳离子化，制备出一种具有高阳电荷的改性AKD大分子，并在中、碱性条件下用该改性AKD对漂白硫酸盐阔叶木浆进行施胶。

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。