分散介质
- 名disperse medium;dispersion medium
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利用悬浮聚合的方法,选用甲基硅油作为体系的分散介质,乙交酯(GA)为单体,合成出了相对分子质量较高的聚乙交酯,其特性黏度[η]高达09。
Polyglycolide ( PGA ) with a relatively high molecular weight and an inherent viscosity of 0 9 was prepared by means of suspension polymerization . In this special system the methyl silicon oil was acted as a disperse medium , and the glycolide was acted as a monomer .
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以水作分散介质,用激光粒度测定仪测定了氧化锆催化剂粉末粒度及粒度分布,测试方法快速、准确,测试结果令人满意。
Within the water disperse medium , the particle size and particle size distribution of jargonia catalyst powder is determined with the laser particle size analyzer . The test is fast and accurate . And the result is satisfactory .
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水溶性A盐、B盐是以水为分散介质的润滑脂较为适宜的抗磨极压添加剂。
Soluble salts A and B are appropriate anti-wear and extreme pressure additives for the greases .
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分散介质pH值对蒙脱土性能的影响
Effect of pH Value of the Dispersing Media on the Properties of Montmorillonite
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考察了分散介质、分散剂类型及用量、球磨参数、pH值等对浆料分散行为的影响。
The effects of dispersants and other parameters on the dispersion in the liquid were examined .
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分散介质和表面活性剂对γ-Fe2O3/聚丙烯酸锂复合微粒电流变效应的影响
Influences of the Base Liquid and Surfactants on the ER Effect of γ - Fe_2O_3 / Polyacrylate Lithium Composite Particles
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分散介质和矿化剂CaF2对合成α-磷酸钙的影响
Effects of Dispersed Medium and Mineralizer CaF_2 on the Synthesis of α - Tricalcium Phosphate
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水凝胶(hydrogel)是以水分为分散介质的凝胶,是一种良好的局部皮肤给药剂型。
Hydrogel , a gel whose dispersion medium is water , is a good preparation formulation for dermal topical application .
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聚合物的Tg、分散介质、复合乳液的干燥温度以及SiO2的含量对表面形貌都有显著影响。
The Tg of polymer , the silica content , the solvent and the drying temperature have significant influences on this surface morphology .
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实验考查了异丙醇分散介质中纳米SiO2经偶联剂表面改性后,表面羟基数量的变化。
The changes of the surface hydroxyl number of nano SiO2 in isopropanol were studied after nano SiO2 modified by several coupling agents .
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本文用比色法、BET、SEM等方法研究了分散介质pH值对蒙脱土的分散性、密度、比表面、孔径分布等性质的影响。
The effect of pH value of dispersing media on dispersity , density , surface area and pore size distribution of montmorillonite was studied using colorimetry , BET and SEM .
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试验进一步将ITO粉体加工成浆料,并且研究了不同的分散介质,分散方法以及不同的pH值的条件下对浆料稳定性的影响。
ITO slurry was further more prepared from powder . And the influences of different dispersion medium , method of dispersion and pH value were discussed on the slurry stability .
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SiO2气凝胶为基体,乙醇水溶液为分散介质,三聚磷酸钠为强电解质。
SiO_2 aerogel used as the base , ethanol / water as the separating medium , and STPP ( sodium tripolyphosphate ) as the strong electrolyte .
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MRS的附加动态剪切应力(△τ)与分散介质浓度、外加磁场强度呈正比例关系;
Exhibited dynamic shear stress of the MRS induced by external magnetic field is in direct-ratio relation with strength of external magnetic field and concentration of the filled clusters in the MRS.
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对于PEG处理的SiO2,连接到SiO2表面的改性剂分子越长,与分散介质缠绕作用越强,粘度越大。
If molecular chain connected to the SiO2 surface is long , the winding effect between dispersion medium and modifier is strong , and then the viscosity is high .
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研究了用AsA改性碳酸钙后,碳酸钙填充性、碳酸钙/液体石蜡体系粘度的变化,以及ASA用量、不同分散介质对碳酸钙沉降性的影响。
After CaCO_3 was modified by ASA . the filling properties of CaCO_2 , the change of the viscosity of CaCO_3 / liquid paraffin System have teen studied .
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用应力控制流变仪考察了不同分散介质乙二醇(EG)、丙二醇(PG)、丁二醇(BG)以及温度对SiO2分散体系流变性能的影响。
The influence of the suspending medium of EG , PG , BG and temperature on the rheological properties of silica dispersions was studied with a stress controlled rheometer .
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研究了上述8种修饰HA及未修饰HA颗粒在不同介质中的悬浮稳定性,获得了上述共9种样品在乙醇、丙酮和水等分散介质中的稳定性大小顺序,并解释了其稳定性机理。
The suspended stability of the above 6 modified HA products and un-modified HA particle in dispersing media EtOH , Me2CO and HaO is investigated . Stability orders of the 7 samples are obtained , their stability mechanism is also discussed .
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该底漆以水为分散介质,VOC低,固体份高,无燃爆危险,可厚涂,使用安全方便,施工效率高。
Using water as its dispersing media , this primer has a low VOC and is inflammable . With a high solid content , it can be painted as a thick primer coating .
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在Fe3O4磁流体存在下,以乙醇/水为分散介质,过硫酸钾作为引发剂,通过苯乙烯与PU大分子单体共聚制备出了两亲磁性聚合物微球。
Amphiphilic magnetic polymer microspheres were synthesized by copolymerization of styrene with PU macromonomer in the presence of Fe_3O_4 magnetic fluid in ethanol / water medium . The structure of copolymer was determined by infrared spectroscopy .
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但与溶剂型聚氨酯相比,WPU的粘结强度较低,耐水性较差,由于以水为分散介质,对RDX表面润湿性能不佳,不利于其对RDX的包覆。
Compared with solvent-borne polyurethane , WPU had disadvantages of low adhesion intensity , poor water-resistance and surface wettability for it used water as dispersion medium , then was unfit to coat the RDX .
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以亚麻油(LO)为分散介质,由蓖麻油(CO)和甲苯二异氰酸酯(TDI)反应制备了端部为&NCO的聚氨酯/环烷酸钴催干的亚麻油(PU/LO)复合涂料。
By mixing castor oil ( CO ) with toluene diisocyanate ( TDI ) in linseed oil ( LO ) as dispersion medium , a composite coating of polyurethane ( PU ) / LO was prepared when cobalt naphthenate was used as drier .
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用C16~18混合醇醚磷酸酯产物为预分散介质使P2O5均匀分散在其中,再添加脂肪醇醚进行磷酸酯化反应。
The P_2O_5 was to be pre-dispersed evenly in a medium composed of the reaction product . Then the ethoxylated fatty alcohol was introduced into the medium .
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以TritonX-100为乳化剂、正己醇为助乳化剂,得到以苯胺盐酸盐为水相、正己烷为分散介质的反向(W/O)微乳液。
The reverse ( W / O ) microemulsions in which aniline chloride is water phase and hexane is oil phase are prepared by use of Triton X 100 as emulsifier and hexanol as assistant emulsifier .
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XRD、TEM、BET和XPS等分析表明,随着分散介质粘度的提高,催化剂分散度增加,颗粒度减小,比表面积增大;
Results of XRD , TEM , BET and XPS analyses indicated that with the increase of medium viscosity , the improved dispersion of the catalyst in the medium was observed , the particle size of the catalyst decreased , and the surface area of the catalyst increased .
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这种PAM水包水乳液具有易干燥、易溶解的优点,且分散介质是水溶性的,从而广泛地应用于对油含量要求很低的领域,如造纸工业、絮凝剂等。
This kind of water package of water type PAM emulsion has the merit : easy dry easy to dissolve , and the dispersion medium is water-soluble , so it applies widely in the domain of low oil content , such as paper industry flocculant and so on .
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水性聚氨酯(WPU)是一种以水为分散介质的聚氨酯体系,由于其无毒、环保、使用安全,已经引起了国内外的广泛关注。
Waterborne polyurethane ( WPU ) is a new type of polyurethane system with water as the dispersion medium . Because WPU is non-toxic , environmentally friendly and safe , it has attracted widespread attention at home and abroad .
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结论该壳寡糖硬脂酸接枝物可作为生物大分子药物载体,载药纳米粒的理化性质及体外释放受到分散介质及释放介质pH的影响,体外释放行为符合Higuchi方程。
CONCLUSION Chitosan oligosaccharide grafted stearic acid could be used as the carrier for the delivery of macromolecular drugs . The characterization and release profiles of CSO-SA nanoparticles in vitro were affected by the pH values of delivery media . The release of LHRH in vitro followed Higuchi equation .
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水性聚氨酯(WPU)是以水代替有机溶剂作为分散介质的新型聚氨酯体系,结合了溶剂型聚氨酯的高性能和水性乳液的低VOC含量,是优异的环境友好型材料。
WPU is a novel PU system dispersed into water instead of organic solvents , so it is a kind of environmentally friendly materials which combines the high performance of solvent-type PU with little or no volatile organic compounds ( VOCs ) .
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结果表明:采用乙二醇为分散介质,加入偶联剂(摩尔分数)KH5701%或十八醇0.5%后,球磨15h和超声波处理30min可以使纳米ITO得到很好的分散,纳米ITO表面改性效果好。
The results showed that the satisfied dispersion and surface modification can be obtained for nanometer ITO particles after 15-hour ball mill and 30-minute ultrasonic dispersion in ethylene glycol incorporated with coupling agent KH-570 of 1 % or 0.5 % stearyl alcohol by mole .