粘度

In order to meet the needs of the practical industry, the property of ammonium phosphate and the effect of sodium humate on the habitude of slurry was investigated firstly by experiments:the relation between neutralization value of the slurry and the pH value, the relation between the boiling point and the density, water content and viscosity of slurry;the influence of sodium humate added into slurry on the relation between the neutralizing value and pH value, and on the density, water content and viscosity of the slurry.

为了工业的实际需要，通过实验，首先研究了磷铵料浆的性质以及腐殖酸钠对料浆性质的影响：料浆中和度与其PH 值的关系，料浆沸(来源：AB427242C论文网www.abclunwen.com)点温度与其密度、含水量及粘度的关系；添加腐殖酸钠对料浆中和度与其PH 值之间关系的影响，以及对料浆密度、含水量及粘度的影响。

Polyringlpyrrolidoneas a viscosity increaser is used to adjust the viscosity of the sols.When the molar ratio of PVP:Al(OC_3H_7)is up to 1:1,the viscosity of the PVP assisted sol increases from 2.3 to 31.5 mPa·s,and homogeneous,uniform and crack-free 1 mol%Er~(3+)-10 mol%Yb~(3+)codoped Al_2O_3 thin films with the thickness of 1.6μm are formed by 10 dipping and drying cycles sintered at 1000℃.

以聚乙烯吡咯烷酮为增粘剂，调节DCPA改性溶胶的粘度，PVP(K-90)：Al_3的摩尔比为1：1时，溶胶粘度由原始溶胶的2.3增加到含PVP溶胶的31.5mPa·s，仅经过10次循环提拉、干燥，1000℃烧结，制备出表面均匀完整，无开裂厚度约为1.6μm的1 mol%Er~(3+)-10 mol%Yb~(3+)共掺杂Al_2O_3薄膜。

The macroscopic rheological parameters and microstructure parameters were closely related, it is helpful to explain the essence of multiple rheological properties through the analysis of which the wax evolution process and microstructure of the crude oil which is waxy and high viscosity; the yield time of gelled waxy crude oil monotone increases along with the decreasing of rate of shear (the time of stress effect prolonged), there was power function relationship between them, it can be expressed with ; when adding diesel oil to Sudan crude oil, dilute proportion bigger the eccentricity degree of paraffin particles were bigger too, that was to say the symmetry of wax crystal was better, the wax crystal form fabric more hardly when the intermolecular interaction was smaller; in the light of macroscopica, the fall extent of the abnormity temperature, solidifying point and viscosity could be larger along with the accretion of dilute proportion, as a result, it's rheological properties could be improved.

SD原油析蜡点为94℃，析蜡高峰为50～30℃，异常点为40℃；其蜡晶颗粒细小、对称性差，所以具有较大的比表面能，容易形成联生、联锁结构；损耗角曲线与储能模量曲线或损耗模量曲线的交点所对应的温度与原油凝点或倾点温度非常接近，大约在39℃左右；也就是说，含蜡原油粘弹特性曲线的交点可以表征其流动性；原油宏观流变参数与微观结构参数密切相关，原油析蜡过程及蜡晶微观结构分析有助于诠释易凝高粘原油多重流变特性的本质；胶凝含蜡原油的屈服时间随剪切速率的降低而单调增加，二者显然存在幂函数关系，可用关系式描述；当SD原油加柴油稀释处理时，稀释比越高，蜡晶颗粒的偏心度也越大，亦即蜡晶对称性越好，分子间作用力越小，蜡晶颗粒越不易形成结构，宏观表现为异常点、凝点及表观粘度等流变参数下降的幅度越大，流动性越好。

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For the benefit of practical project, 0℃ apparent viscosity, which was employed to appraising low-temperature flowability of asphalt, and viscosity-temperature index, which was employed to appraising temperature susceptibility of asphalt, were put forward. By comparing with practical conditions of various asphalt which is produced in various place and is made through various craft, by comparing with SHRP and other evaluated method of asphalt and by comparing with the property of asphalt mixture, the exactness and susceptiveness of 0℃ apparent viscosity and viscosity-temperature index was verified.

为了工程实际的应用，提出了采用0℃表观粘度评价沥青低温流动性和粘温指数评价沥青的感温性的指标，并通过与多种不同产源、不同炼制工艺的沥青实际使用情况相比较、与美国SHRP计划和我国"八五"攻关推荐的沥青低温评价方法、沥青其他低温评价方法以及沥青混合料的低温性能相比较，证明了0℃表观粘度和粘温指数在评价沥青低温性能时的准确性和敏感性。

From the "" to wet-membrane "" viscostty dry film evolves, you can see any of the oils or gloss drying or curing process must go through the process of viscosimetry products, that is solid oils or varnish, mostly due to its own power, but was decoratine adhensive in coated packaging business card printing and membership card making products surface, it is not possible to immediately contiguous becomes solid continuous gloss films, only up to a certain conditions in order to complete all of the varnish coating to the drying process of prefilming.

从"湿膜"到"干膜"的粘度变化过程中，可以看到：任何一种的底油或光油的干燥或固化过程必然都要经历该产品粘度的变化过程，即是固体的底油或光油，由于其本身多为粉末状，但在装饰粘附在被涂布的包装制卡和会员卡制作制品表面后，还不可能立即就形成连续进行变成为固体连续光油薄膜的过程，只有达到一定条件才能完成全部的由光油涂布到干燥成膜的过程。

The uniform design and PTC are used in the studies on preparation for the chitosan of high deacetylate degree and low viscosity.

利用相转移催化剂与均匀设计法探讨了高脱乙酰度、低粘度壳聚糖的制备方法，找出了最佳工艺条件，在最佳工艺条件下得到了粘度为 2 6.6m Pa· s，脱乙酰度为 99.4 %的壳聚糖

The different experimental factors such as the amount of dispersing agent,pH value and mash concentration have effect on the viscosity of kaoline ,the viscosity mechanism was investigated,and the magnetic separation process,washery process can improve the mash viscosity,especially the technology is used to instruct industrial process.

本文主要研究了北海高岭土不同实验条件影响粘度的机理，针对工业生产过程中分散剂用量、pH值以及矿浆浓度等因素对矿浆粘度的影响进行了分析，并针对磁选和洗涤工艺对改善粘浓度进行了探索分析，以期指导工业生产。

In the dissertation, the dynamics properties of MR fluid and the relationship between its viscosity and extern-controllable magnetic field were investigated. Furthermore, the magnetic-viscosity characteristic of.

研究了磁流体的力学性能及磁流体粘度与外加控制磁场间的可控关系，测定了磁流体在特定条件下的磁粘特性，获得了磁流体粘度与磁场强度之间的相关性。

The slump and the time of slump are tested through the method of slump test, and the properties of concrete are calculated and analyzed. The study denotes that for C20 grade concrete, the value of the shear yield stress σ0 and plastic viscosity η is the smallest when the fly ash contains 20% weight of Portland cement; for C60 strength grade concrete, the value of plastic viscosity is the smallest when fly ash contains 20% weight of Portland cement and the value of the shear yield stress σ0 is the smallest when fly ash contains 30% weight of Portland cement.

利用改良坍落度筒的实验方法对坍落度和坍落时间进行测试，并进行相应的计算与分析，实验结果表明：强度等级为C20的混凝土，粉煤灰掺量为20%时粘度和屈服应力值最低；强度等级为C60混凝土，粉煤灰掺量为20%时，其粘度最低，而屈服应力值在粉煤灰掺量为30%时最低。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐