查询词典 nano

Selecting water-borne styrene/acrylic anti-rust latex of soapless polymerization technology as binder,iron oxide red and aluminum triphosphate as anti-rust system and nano SiO_2 paste,we prepared water-borne nano-modified styrene/acrylic anti-rust primer,properties of which reached the level of solvent-borne alkyd antirust coatings.

本试验选用无皂聚合工艺制备的水性苯丙防锈乳液为基料，氧化铁红与三聚磷酸铝组成防锈体系，添加纳米SiO_2浆料，制备的水性纳米改性苯丙防锈底漆性能达到溶剂型醇酸防锈涂料的水平，并分析了乳液、防锈颜料、纳米SiO_2对水性苯丙防锈底漆性能的影响。

The Ni and Zn-doped spiculate α-FeOOH were prepared by the coprecipitation method and citric acid method using FeCl2、Zn(NO3)2、Ni(NO3)2 and NaOH as raw material and spiculate α-FeOOH as intermediate. Then they successively were enwraped by citric acid complex of the Ni and Zn and heat treated to get spiculate nano-Ni0.5Zn0.5Fe2O4. The particles size and slenderness ratio of spiculate nano-Ni0.5Zn0.5Fe2O4 were successfully controlled by the doped mass of Ni and Zn in the coprecipitation process.

以FeCl2、Zn(NO3)2、Ni(NO3)2和NaOH为原料，借助针状α-FeOOH做为中间体，有效的把共沉淀法和柠檬酸法相结合，制得掺有镍和锌的针状纳米α-FeOOH，在其表面包裹镍和锌的柠檬酸络合物后，经热处理制得了针状的纳米Ni0.5Zn0.5Fe2O4 ，并通过控制共沉淀法过程中镍和锌的掺入量，有效的控制了针状纳米Ni0.5Zn0.5Fe2O4 的粒径和长径比。

Study the bioactivity of the n-HA/PA66 composite and the effects it would be to body's metabolism of calcium and phosphorus ion in vivo.(3) Study the osteo-conductivity and the ability to repair bone defect of the porous n-HA/PA66 composite and the feasibility use it as the scaffold of bone tissue engineering. Objects and Methods as follows: 1.To evaluate the biocompatability of nano-hydroxyapatite crystals and polyamide composite (n-HA/PA66) with the L929 cells.To proceed the morphological observation and take pictures of L929 cells after 1d,2d,4d,and 7d of co-cultured with extract of n-HA/PA66 ,and direct contact with n-HA/PA66.To determine light absorbtion value of every hole under 500 nm with enzyme linked immunity instrument after 1 d,2 d,4 d,and 7 d of contact of n-HA/PA66 extract with L929 cells,and direct contact with n-HA/PA66.In the meanwhile calculate the relative multiplication rate of cells,and evaluate them by six degree tests for cytotoxicity. To investigate the acute and chronic toxic reaction on the whole body induced by the new nano-hydroapatite crystals and polyamide composite(n-HA/PA66)after implanting in vivo and its effects on partial constitution of animal organs after implanting in vivo,and evaluate the potential and degree of subcuticular stimulation reaction.

本实验主要由以下三部分组成：一、n-HA/PA66 复合材料在动物体内、体外的生物相容性及生物安全性评价二、n-HA/PA66 复合材料植入动物体内的生物活性及近期对机体钙、磷代谢影响的实验研究三、网孔 n-HA/PA66 复合材料作为支架修复兔桡骨节段缺损的动物实验研究主要研究目标及方法如下：参照 GB/T16886.5-1997-ISO 10993-5：1992《医疗器械生物学评价细胞毒性试验体外法》之评价标准和要求，采用规定的 L929 细胞(小鼠结缔组织成纤维细胞)，分别经直接接触和材料浸提液与细胞共培养等方式对 n-HA/PA66 复合材料进行细胞毒性测试，采用细胞形态观察法观察两种细胞各组在 24h、48h、72h、5 天后各时相点的细胞形态学变化，并在显微镜下照相，从而对细胞与材料的生物相容性进行定性评价；同时采用细胞生长抑制法，以酶标仪定量测定评价各组 1，2，4，7 天 L929 细胞的相对增殖率，以定量测定并判别材料对细胞的毒性程度。

CuS thin film composed of nano/micro tubes with diameters in the range of 150 to 200 nm and lengths up to several microns and CuO thin film composed of nano/micro crystals with sizes ranging from 150 to 250 nm have been successfully prepared through a gas-solid sulfurization and oxidation reaction using well-aligned CuCl nanorod films as precursor.

在本文中，以由氯化亚铜纳米棒组成的薄膜为前驱体，分别通过气-固相的硫化和氧化反应获得了由直径150到200纳米，长度达数微米的硫化铜管组成的薄膜和粒径为150到200纳米的氧化铜纳米/微米晶所组成的薄膜。

The static experiment is done. In this paper, first I introduce some characteristics of the nano-fluids such as motion. The parallel laser is used to illuminate vertically the nano-particle producing dynamic speckle. The Laser speckle velocity is underlain by the fact that movement of a diffuse object illuminated by coherent light results in a random time variation of a speckle pattern observed in both the image plane and the diffraction field.

在描述了纳米流体的基本特点，以及根据布朗运动理论纳米流体的运动特性的基础上，考虑到将采用激光垂直照射纳米流体，由纳米颗粒散射的光线将互相干涉形成散斑的测试方法，从理论上推导了纳米颗粒的运动速度和散斑运动速度的关系，得到了在菲涅尔衍射区域，散斑的移动速度等于纳米粒子的移动速度的结论。

The compatibility of grafted version with butylruber matrix was studied by analsising solubility parameter of A-151 and butyl rubber, surface free energy of modified nano-silica and unvulcanized tensile compound butyl rubber. In the paper, the effects of modified nano-silica on physical properties of vulcanizes were studied.

通过研究偶联剂(A-151)和氯化丁基橡胶的溶解度参数、改性纳米二氧化硅和未硫化增强硫化胶的表面自由能分析了改性纳米二氧化硅与未硫化增强胶的相容性。

The result showed that the micro-nano rough structure fulfilled the Wenzel equation. This micro-nano rough structure could be seen by scanning electronic microscope.

结果表明，含氟碳聚丙烯酸酯乳液疏水涂层可产生符合Wenzel方程的微纳米级别的粗糙面。

Firstly, a composite antifouling composition is prepared by taking super-fine tourmalin powder and nano zinc oxide powder as materials and coating a layer of silicon dioxide on the surface of the super-fine tourmalin powder and nano zinc oxide powder, and the nontoxic conductive marine antifouling paint is prepared by dispersing composite antifouling composition, film-forming matter, conductive powder and addition agent.

以超细电气石粉末与纳米氧化锌粉末为原料，在其表面包覆一层二氧化硅，制得复合防污剂。然后以复合防污剂、成膜物质、导电粉末、助剂经过分散制成无毒海洋防污涂料。

The existence of surface dangling bonds often resulted in nano-silicon particles conglutinating with each other to form chain or ring. Nano-crystal often emerged between two particles.

由于纳米硅颗粒表面悬键的存在，所制备的纳米硅颗粒常常相互粘连成链状或环状；互相连接的的两颗粒之间出现纳米晶被共用现象。

A preparation method of the visible-light photocatalyst Bi2WO6 nano-powder is characterized by comprising the steps as follows:(1) the selection of raw materials;(2) bismuth nitrate Bi(NO33 question mark 5H2O is added into a citric acid solution to obtain the citric acid solution containing white sediment;(3) EDTA is added into ammonia water which is then added dropwise with the citric acid solution containing the Bi(NO3)3 question mark 5H2O so to obtain a solution of bismuth;(4) the solution of bismuth is added with (NH4)6W7O24 question mark 6H2O solution to form a precursor solution which is then stirred, dried, coked, cooled and ground to obtain decarburized powder;(5) the decarburized powder is roasted for 2h to 4h under 450 DEG C to 550 DEG C to obtain the visible-light photocatalyst Bi2WO6 nano-powder.

可见光催化剂Bi 2 WO 6 纳米粉体的制备方法，其特征在于它包括如下步骤：1原料的选取；2将Bi(NO 3 ) 3 5H 2 O加到柠檬酸溶液中，得到含有白色沉淀的柠檬酸溶液；3将乙二胺四乙酸加到氨水中，并缓慢滴加入含有Bi(NO 3 ) 3 5H 2 O的柠檬酸溶液中，得铋的溶液；4将(NH 4 ) 6 W 7 O 24 6H 2 O溶液加入上述铋的溶液中，组成前驱液；搅拌，干燥，焦化，冷却后，研磨，得去碳的粉体；5将去碳的粉体在450～550℃下焙烧2～4h后，得到可见光催化剂Bi 2 WO 6 纳米粉体。

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。