查询词典 diethylene

A series of new poly polyamines have been synthesized and characterized by means of element analysis and FT-IR etc. The tough effect of these PPAs on epoxy resin/diethylene triamine systems was examined.

合成了一系列新型的聚氧化丙烯多胺，并对其结构进行了表征，同时研究PPA添加到双酚A环氧树脂-二乙烯三胺体系中对环氧树脂固化过程的影响以及对固化环氧树脂的增韧效果。

The first step was to synthesize imidazoline. The mole ratio of oleic acid and diethylene triamine was 1:1.2, the xylene was 30%. Temperature was controlled in about 160 ℃ on this stage, timing for acylation reaction was about 1.5 hours.

第一步咪唑啉的合成：油酸和二乙烯三胺摩尔比为1：1.2，以二甲苯为携水剂，反应温度控制在160℃酰化反应1.5小时，然后升温至220℃环化反应，反应时间6.5小时。

An anionic phenol-formaldehyde resin which synthesized by phenol, formaldehyde and diethylene triamine was studied in this paper, and this modified phenol-formaldehyde resin was used in papermaking as an intensifier.

结果表明，单独使用改性酚醛树脂时增强效果不显著；改性酚醛树脂和阳离子淀粉共同使用能有效提高纸张的抗张指数和环压指数。

Amine terminated polyurethane resin has been synthesized with diethylene triamine and isocyanate terminated polyurethane resin mentioned above.

4利用二乙烯三胺和自制的端异氰酸酯聚氨酯预聚物合成端氨基聚氨酯树脂。

At room temperature, solution's pH=11, mole proportion of solution are 1:3 (ammonium sulfate and diethyl amine),1 :2.5(ammonium sulfate and diethylene triamine) and 1:2 (ammonium sulfate and triethylene tetramine).

在室温下，固定剂溶液pH=11，溶液物质的量配比分别为硫酸铵与二乙胺1：3、硫酸铵与二乙烯三胺1：2.5和硫酸铵与三乙烯四胺1：2。

By one-step epoxidation of double bond in the side chain of cardanol,epoxy-cardanol has been synthesized,which may interact with diethylene triamine to form amino-cardanol.

采用一步环氧化法对腰果酚侧链进行氧化，其环氧化物与多元胺反应生成氨基腰果酚。

A series of novel amphipathic macrocyclic polyamine ligands derived from iminodiacetic acid and diethylene triamine have been synthesized and characterized by MS, 1H NMR, IR spectra and elemental analysis.

以亚胺基二乙酸和二乙撑三胺为原料，通过关环等反应合成了一类侧链含有羟基的新型两亲性大环多胺。

In application of modified phenol-formaldehyde resin in OCC pulp, firstly the application effictiveness of phenol-formaldehyde resin modified by triethylamine and diethylene triamine in OCC pulp was researched, and the optimum application effictiveness was gotten through mon- factor trial.

通过对改性酚醛树脂在OCC废纸浆中的应用研究，考察了二乙烯三胺和三乙胺改性酚醛树脂在OCC废纸浆中的应用效果，并通过单因素实验得到了改性酚醛树脂的最佳应用效果。

It has shown that the tensile index and ring crush index of handsheets were increased by 15.90% and 9.65%, when phenol-formaldehyde resin modified by diethylene triamine was used in OCC pulp alone (the dosage of resin was 1.0%), and then adding cationic starch to pulp (the dosage of starch was 1.0%), the tensile index and ring crush index of handsheets were increased by 32.81% and 29.29%.

实验结果表明，二乙烯三胺改性的酚醛树脂单独作用于OCC废纸浆时(用量为1.0%)，抗张指数和环压指数分别增加了15.90%和9.65%，当加入阳离子淀粉时(用量为1.0%)，抗张指数和环压指数分别增加了32.81%和29.29%。

Firstly the mid-pruduct imidazoline was produced by reaction of naphthenic acid and diethylene triamine, then the corrosion inhibitor amphoteric imidazoline, which is soluble in water, was produced by reaction of imidazoline and sodium monochloroacetate in aqueous solution.

以高纯环烷酸与二乙烯三胺反应合成了中间体咪唑啉，再以去离子水为溶剂，用氯乙酸钠对该中间体进行两性化，制得了水溶性两性咪唑啉缓蚀剂。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。