手銨 的英文怎麼說
中文拼音 [shǒuǎn]
手銨
英文
quaternary ammonium-
Chiral quaternary ammonium salts were synthesized from cinchonine in cinchona alkaloids using chloromethylated polystyrene - polyethylene glycol, diethylene glycol, triethylene glycol and glycol as polymer - supported phase transfer catalysts, finsl products were characterized by ftir, elemental analysis, scanning electron microscopy, x - ray photoelectron spectroscopy ( xps )
摘要以金雞納生物堿中的辛可寧為原料，氯甲基化聚苯乙烯聚乙二醇、一縮二乙二醇、二縮三乙二醇、乙二醇等為載體合成了幾種聚合物負載的手性季銨鹽，並對它們的結構用紅外光譜、元素分析、掃描電鏡和x射線光電子能譜等測試手段進行了表徵。Recently, as an advanced and eco - friendly method of powder preparation, freeze - drying has been developing quickly. the ultrafine ni powder with the average size of 50nm was prepared by freeze - drying form the niso4 and naoh and was studied by means of xrd, ir, fesem, tem, and dsc. the catalysis of nickel powders to nh4clo4 and how the precursor forms and the processes of the amorphous precursor to the final nickel powders are discussed
本論文以分析純niso4 、 naoh為原料，採用冷凍乾燥技術成功的制備了50nm左右的球狀超細鎳粉，通過xrd 、 ir 、 fesem 、 tem 、 dsc等材料現代分析手段對產物進行了分析和表徵，研究了超細鎳粉對高氯酸銨熱分解的催化活性、前驅體的形成以及非晶態金屬鹽到晶態超細鎳粉的轉變過程。Secondly, the grafted membranes were prepared by grafting 2 - acrylamido - 2 - methyl propane sulfonic acid ( amps ) on pretreated membranes using cetric ammonium nitrate ( can ) as an initiator in the aqueous medium. the surface compositions of the grafted membranes were determined by fourier transform adsorption spectrum ( ftir ) and x - ray photoelectron spectroscopy ( xps ). and the morphology of the grafted membranes was studied by scanning electron microscopy ( sem ) and atomic force microscopy ( afm )
然後，選用硝酸鈰銨作為引發劑， 2 -丙烯酰胺- 2 -甲基丙磺酸（ amps ）為接枝單體，在水溶液體系中進行接枝共聚反應制備pvdf ? g ? amps中空纖維膜，並利用傅立葉紅外光譜（ ftir ） 、 x光電子能譜（ xps ） 、掃描電子顯微鏡（ sem ）及原子力顯微鏡（ afm ）等檢測手段證實了接枝共聚物的存在。Portable stored - pressure powder series extinguishers are effective extinguishing appliances, in which extinguishing gaent sodium bicarbonate and ammonium phosphate powder together with the driveng gas - nitrogen are filled in a full - sealed container. during application, nitrogen drives to jetting powder for extinguishing, which is fast and effective in extinguishing, light in weight, convenient and simple in operation, safe and reliable
手提式乾粉系列滅火器是一種輕便高效的滅火器材，它使用磷酸銨鹽和碳酸氫鈉乾粉滅火劑和驅動氣體氮氣一起灌裝在全封閉的容器內，滅火時由氮氣驅動乾粉滅火劑噴射滅火，具有滅火速度快、重量輕、效率高、使用方便、靈活、安全、可靠等特點。According to the code for design of extinguisher disposition in buildings, portable fire extinguisher box, in which there are necessary number of portable ammonium phosphate powder extinguishers, will be installed under every hydrant box
在本建築內按"建築滅火器配置設計規范"在每個消火栓箱下設手提式滅火器箱，箱內設有必要數量的磷酸銨鹽手提式滅火器Respectively proceeding with bromine complexing agent of anode, modified membrane and electrolytic additive of cathode, mainly referring to specific power of battery, ratio of self - discharge and zinc dendrite, this paper has studied the influences of different anode additive and modified membrane on specific energy of battery by means of charge and discharge curves, and the influences of electrolytic additive ( nh4 +, op - 10, tx - 10 and dodecyl trimethyl ammonium bromide ) on zinc dendrite by means of current - time curve and microscopic morphology observation
本文分別從正極溴絡合劑、隔膜改性和負極的電解液添加劑入手，以電池的比能量、自放電率以及鋅枝晶生長情況為主要的性能指標，用電池充放電曲線等方法研究不同正極添加劑和隔膜改性對電池比能量的影響；用電流-時間曲線以及微觀形貌觀察等方法研究電解液添加劑（ nh _ 4 ~ + 、 op - 10 、 tx - 10以及十二烷基三甲基溴化銨）對鋅枝晶生長的影響。分享友人