查询词典 dispersion

The effects of different rotor configuration on carbon black dispersion and the mechanical properties of rubber compound were studied.

主要研究了不同转子构型对炭黑分散性及胶料力学性能的影响。

The temperatures between 38℃～40℃were used for observing the change of ECG,vector cardiography and the QT dispersion before and after the treatment course.

用38℃～40℃浴温观察了疗程前后心电图、心向量图及Q-T离散度的变化。

Preparation and Application of water-borne curing agent from cashew nut shell liquid ;2. The dispersion was then modified with cashew nut shell liquid containing hydroxyl groups.

采用含有—OH的脱羧腰果壳液对其改性后，复合膜玻璃化温度上升、硬度提高，耐水性进一步改善。

Preparation of water-borne polyurethane dispersion modified by epoxy resin;2. Preparation and Application of water-borne curing agent from cashew nut shell liquid;3. Synthesis and performance study of water-borne photosensitive PU acrylate PUA

以甲苯二异氰酸酯、聚丙二醇醚(PPG 2 2 0 )和二羟甲基丙酸为原料制备了阴离子型水性PU 乳液，研究了DMPA用量、n /n值、交联剂TMP用量对水性PU 乳液与涂膜性能的影响，得出了制备阴离子型水性PU 的最佳配

As for photocatalytic oxidation, the dispersion , recycling and loading technology of catalyzer has not been mature so far

光催化氧化法的催化剂分散、回收及负载技术还不很成熟。

Several graded materials that are composite of different metals and ceramal are taken for the examples, the phase velocity equation is solved by the numerical method, the dispersion curves are given. The results show that the Rayleigh waves nearb...

以不同金属与陶瓷复合而成的几种梯度材料为例，用数值方法求解了相速度方程，给出了相应的波的弥散曲线，结果表明，梯度介质半空间自由表面附近的Rayleigh波通常有两种不同的弥散形式，即正常弥散和非正常弥散

The core-shell structure can be arrived by in-situ dispersion polymerization. and there is chemical action between PAn and ceria.

它们之间的作用发生在N原子上，这可以通过红外光谱和拉曼光谱共同证明。

The results showed that adding a small amount of ceria improved the dispersion of cobalt, decreased the electron density of the cobalt particle, and enhanced the dissociation of CO on the catalyst surface.

表征结果表明，少量CeO2助剂的添加提高了活性组分Co在催化剂表面的分散度，降低了催化剂表面Co的晶粒度，使催化剂对CO和H2的吸附性能发生了改变。

Cerium oxide has a wide range of uses, but many applications require special physics properties of particles. It is particle morphology, size, structure, dispersion, surface properties ,this physical and chemical properties, that determine their application field, but the traditional preparation process is difficult to control cerium oxide particle morphology and physical properties, thus making it difficult to meet the application requirements.

氧化铈有着广泛的用途，但很多方面的应用都要求其粒子具有特殊的物性，粒子的形貌、尺寸、结构、分散性、表面性能等物化性能决定其应用领域，但传统制备工艺难以控制氧化铈粒子的形貌及物性，从而难以满足应用的需求。

The results indicate that improving temperature to reflux, using low polarity solvent as dispersion medium and proper molar ratio of tetrabutyl titanate to stearic acid can bring out good modification. The function of tetrabutyl titanate is to react with the surface hydroxyl groups and adsorbed H2O on the powder particles to produce new binding sites such as M—O—Ti—OC4H9and M—O—Ti—OH, which can easily react with the carboxylic acid. As temperature increases from room temperature to reflux temperature, the reactions between RCOO- and Ti change from coordinate bonds to covalent bonds, which makes the carbon chains of stearic acids more strongly bound with the powder particles surface.

研究结果表明，提高处理温度、适当增加复合改性剂中硬脂酸的量并选用极性弱的有机溶剂可达到比较理想的改性效果；钛酸四丁酯的作用是与粉体粒子表面的羟基以及吸附水反应产生偶联点，如M—O—Ti—OH，这些偶联点易于与羧酸反应；在低温时RCOO-与偶联点的Ti之间以配合物的形式发生作用，在回流温度下处理时，主要发生酯化反应，使硬脂酸更牢固地嫁接到粉体粒子表面，改性效果更好。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。