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The method is realized by that polyether ether ketone is added into concentrated sulfuric acid to carry out sulfonation reaction, thereby obtaining sulfonated polyether ether ketone, then the sulfonated polyether ether ketone is dissolved in organic solvent, N, N (1)-Carbonyldiimidazole is added to stir for one to three hours, coupling agent is mixed for stirring the reaction for 1.5 to 4 hours, then inorganic crosslinking agent is mixed to react under the temperature of 50 to 80 DEG C. Proton conductors are mixed to continue getting the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors under the temperature. Finally the proton exchange membrane for a direct methanol fuel cell is obtained by that the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors is/are processed through membrane forming, drying and exuviation.

该方法首先将聚醚醚酮加入浓硫酸中进行磺化反应得到磺化聚醚醚酮;然后将磺化聚醚醚酮溶于有机溶剂中,加入N,N′-羰基二咪唑搅拌1~3小时后加入偶联剂搅拌反应1.5~4小时,再加入无机交联剂在50~80℃下反应,然后加入质子导体继续在此温度下反应得到磺化聚醚醚酮/无机交联剂/质子导体的混合溶液;最后将磺化聚醚醚酮/无机交联剂/质子导体的混合物溶液成膜,干燥,脱膜即得到所述的直接甲醇燃料电池用质子交换膜。

We would like to make our students to know and master the basic way of the chemistry experiments, the use of the normal apparatus of inorganic and analytical chemistry, the character of the normal inorganic compounds and

课程的目标是使学生了解和掌握化学实验的基本方法和常见的无机与分析化学仪器的使用,了解和掌握一般无机化合物的性质以及分离提纯的方法;熟悉常见的无机化合物的制备方法,掌握测定有关重要化学常数的方法和原理;熟悉滴定分析的基本操作,掌握定量测定无机化合物的主要化学滴定的方法和原理,从而培养学生能用化学观点与方法来观察分析和解决实际问题的能力。

Dose-dependent toxic effects in primary cultured astroglia could be induced by exposed to iAsi or iAsv within the concentrations of 25~100μmol/L or 100~500 μmol/L, respectively.

接触最少25μmol/L的3价无机砷或100μmol/L的5价无机砷对星型胶质细胞可产生明显的毒性损伤作用。3价无机砷的毒性明显大于5价无机砷。

For the fermentation coupled with distillage recycle,every five days,the total backset distillage collected was directly used to mix the corn powder,and the experimental results revealed that the concentrations of ethanol,residual reductive sugar,inorganic phosphate and total solids in the broth were maintained s.

实验结果表明,在稀释速率0.05 h-1,废糟液全循环条件下,装置达到稳定状态后,乙醇、残还原糖、无机磷、无机氮、蛋白和总固型物浓度分别稳定在9.4%、26 g/L、11 g/L、3.36 g/L、0.136 g/L和85 g/L左右;乙醇浓度与对照组相差不大,但残还原糖、无机磷及总固形物在废糟液循环使用的初期出现积累,但随运行时间的延长而趋于稳定,说明对酵母生长和乙醇发酵没有产生明显影响。

In this paper, we have investigated the development of organic-inorganic composite PR material, prepared a new organic-inorganic nanocomposite PR material of PVK-CdS/DMNPAT, characterized every component and tested it photorefractivty by two beam coupling experiment.The work of this paper includes mainly three parts as followed:(1) An azo dye DMNPP was prepared via reoxidation and coincidence reaction and its derivative DMNPAT was prepared by attaching a long methacrylate chain in DMNPP.

本学位论文分析了国内外有机无机复合光折变材料的研究现状,根据目前有机无机纳米复合光折变材料研究中存在的问题,依照有机无机纳米复合光折变材料各功能组分的基本要求设计并制备了PVK-CdS/DMNPAT的有机无机纳米复合光折变材料,对各组分的合成表征以及光折材料的光折变性能做了较系统的研究。

Organic matrixs coming from cells play role in nucleation, growth, morphology, polymorphology of inorganic materials. This control of organic matrixs are mainly behaved by the interfaction between organic matrix and inorganic materials .The processing of organic matrix controlling inorganic material is called as molecular recognition. The mechanism of organic-inorganic molecular recognition contains three facts such as electrostatic attraction, lattice geometry matching and stereochemical complimentary.

细胞分泌的有机基质在无机矿物的成核,生长,形貌,多型和结晶学定向等过程中起到了调控作用,基质对矿化的这种调控作用具体表现在有机或生物大分子和无机离子在界面上的相互作用,有机质对无机晶体的成核,生长,晶形及结晶学定向等的控制过程称为分子识别,有机-无机界面分子识别机制主要包括静电作用,晶格几何匹配和立体化学互补三个方面。

Applyingsome inorganic materials, such as sodium silicate, aluminum and potassic sulphate, ferricchloride, sodium aluminate, the author manufactured a new-style JYQ 796 high efficiencyinorganic waterproof and dampproof agent.

针对国际国内各类建筑工程、水利工程、装饰工程等存在着严重的渗水漏水问题,本文以硅酸钠、硫酸铝钾、氯化铁、偏铝酸钠等多种无机原料,成功地研制了一种新型JYQ796型高效无机防水防潮剂,它主要分为无机快速堵漏型(配方4)和高效防水防潮型(配方6)两大类。

Based on the analysis of organic geochemical characteristics, Inorganic geochemical exploration methods and nano-geochemical exploration methods were adopt to research geochemistry on the surface above the Xin Chang gas field,and it is discovered there is abnormity of trace element ,for example , Cu、Zn、Ni、V、Fe_2O_3、Ba、W、Sb、Ag、Y、Zr、La and Ba、Sr、Ti、Cu、Zn、Ni、Al、P、La series、Y、Co、W、Ag、Nb、Tl ect, showing the top effects and chimney effects,which is important to indicate gas reservoir.

本文以有机地球化学特征分析方法为基础,采用无机地球化学勘探方法和纳米级地球化学勘探方法对新场气田上方地表无机地球化学和纳米级地球化学特征进行综合研究,发现了无机微量元素铜、锌、镍、钒、三氧化二铁(Fe_2O_3)、钡、钨、锑、银、钇、锆、镧等及纳米级微量元素钡、锶、钛、铜、锌、镍、铝、磷、镧系除钷(Pm、钇、钴、钨、银、铌、铊等元素在气田上方异常特征呈现顶端效应或烟囱效应,该类元素对气田的勘探具有重要的指示意义。

Two new methods about preparation of nano-inorganic coated polymer microsphere have been found. The research mainly focused on controlled precipitation of inorganic precurdors onto the polymer microspheres, technique of preparation and size distribution of transition metal oxides and sulfides emulsion particles, nano-paticles''surface modification and the HLB values adjustment, emulsification of oil-soluble monomer in inorganic colloid and emulsion stability, emulsion polymerization that inorganic particles act as medi-phase, the preparation of inorganic nano-particle/polymer hybrid microspheres, preparation of hybrid materials in inverse emulsion, inverse emulsion polymerization of acrylamide and its phase behavior. Inorganic nano-particles we studied concerning TiO2、SiO2、Fe3O4、ZnO、ZnS、Ag and black carbon. Also we studied the morphology and capability of the hybrid materials.

主要内容有:无机物在高分子乳胶模板体系的界面定位沉积研究;过渡金属氧化物、硫化物纳米胶体粒子的制备工艺与胶粒尺寸分布研究;纳米粒子的表面修饰及其亲水亲油平衡值的调制;油溶性单体在无机胶体中的乳化行为与乳液稳定性研究;以无机纳米粒子做中介相的乳液聚合与无机纳米粒子/高分子复合微球制备研究;反相体系中杂化材料的制备;丙烯酰胺水溶液反相乳液聚合、相行为与稳定性;丙烯酰胺反相体系中无机粒子的制备研究;涉及到TiO2、SiO2、Fe3O4、ZnO、ZnS、Ag、碳黑等纳米无机物,系统考察了相关材料的形态与性能,为其应用开发奠定了基础。

In recent years, because of waste water discharging, extensive usage of agricultural fertilizer which is then brushed into the sea with rain, and extensive development of feeding fish breeding and poultry raising industry offshore, the offshore sea water contains large quantity of inorganic nitrogen, inorganic phosphate, and other inorganic nutrient and soluble organic matter, which has provided perfect environmental conditions for algae growing.

近些年来,由于污水排放,农用化肥大量使用并随雨水流失,近海给饵养殖业的广泛发展,使近岸海水含有大量无机氮,无机磷等无机营养素及可溶性有机物,为藻类生长提供了良好的环境条件。

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推荐网络例句

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。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。