醚化劑 的英文怎麼說

中文拼音 [míhuàjì]
醚化劑 英文
etherifying agent
  • 醚 : 名詞[化學] （有機化合物的一類） ether
  • 劑 : Ⅰ名詞1 （藥劑; 制劑） a pharmaceutical or other chemical preparation 2 （某些有化學作用的物品） a...
  1. In this paper, glycidyl ether, which was high epoxide value and low viscosity, was synthesized from 2 - trimethylene glycol, epichlorohydrin and the normal butyl alcohol by phase transfer catalyst based on the orthogonal experiment design

    摘要採用1 ， 2 -丙二醇、正丁醇和環氧氯丙烷為原料，在相轉移催化劑的作用下反應，通過正交實驗合成了的高環氧值、低粘度的混合醇縮水甘油醚。
  2. The title mid - etherified melamine - formaldehyde resin was synthesized in two steps and used as a curing agent of water borne paint, the best reaction conditions were investigsted, in ferms of the influence of temperature, time and catalyst

    摘要採用兩步法合成了用於塗料交聯劑的甲醚化三聚氰胺樹酯，考察了溫度、時間、催化利等因素對交聯劑中不同組分含量的影響。
  3. ( 1 ) the pbs nanoparticles were prepared in quaternary system containing p - octyl polyethylene glycol phenylether ( op ) / n - pentanol / cyclohexane / aqueous solution by different homogenization methods, such as shake by hand, stir by machine and disperse by ultrasonic

    本論文的主要內容如下： （ 1 ）採用乳化劑op （聚乙二醇辛基苯基醚）正戊醇環己烷水溶液四組分體系，不同均化手段（手搖、攪拌、超聲）制備納米pbs 。
  4. A butylated hydroxyanisole or butylated hydroxytoluene or mixtures thereof within the limits specified in part ii of this schedule may be used in conjunction with propyl gallate or octyl gallate or dodecyl gallate or mixture thereof within the limits specified, provided that the total amount of antioxidant shall not exceed, in the case of anhydrous oils and fats and vitamin oils and concentrates, and partial glycerol esters, 300 parts per million, in the case of butter for manufacturing purposes, 240 parts per million and in the case of essential oils and isolates from the concentrates of essential oils, 1000 parts per million

    A不超逾本附表第ii部所指明分量的經丁化作用的羥基茴香醚或經丁化作用的羥基甲苯或其混合物，可與不超逾指明分量的丙基?酸鹽或辛基?酸鹽或十二烷基?酸鹽或其混合物同時使用，但添加於無水食油及脂肪維他命油及其濃縮物及部分丙三醇酯的抗氧化劑總分量，不得超逾百萬分之300 ，添加於作製造用途的牛油的抗氧化劑總分量，不得超逾百萬分之240 ，而添加於香精油及香精油濃縮物的分離物的抗氧化劑總分量，則不得超逾百萬分之1000 。
  5. Determination of degree of etherification of sodium carboxymethylcellulose for detergents

    洗滌劑用羧甲基纖維素鈉醚化度的測定
  6. Etherification of light fcc gasoline over supported tungstophosphoric heteropolyacid catalyst

    採用負載型磷鎢酸催化劑的輕汽油醚化
  7. Soluble in water and many organic solvent, owning good lubricity and thermal stability, almost having no toxicity and excitability, being able to occur esterification reaction and etherification reaction with other compounds

    能溶於水和多種有機溶劑，有優越的潤滑性及熱穩定性，幾乎沒有毒性和刺激性，可與其他化合物起酯化、醚化反應。
  8. Abstract : propylene alcohol ethers is one of the fine chemicals with many uses and lower toxicity, which is widely studied now. the research progress on the catalysts in the etherification of propylene oxide with alcohol was reviewed in this paper

    文摘:丙二醇醚是一種低毒用途廣泛的精細化學產品，目前國內外對其生產工藝與催化劑的開發廣為關注.本文作者較為系統地概述了國內外有關合成丙二醇醚催化劑的研究現狀
  9. The influence of catalyst on the copolymerization of epoxy and cyanate was investigated, and the mechanism of their copolymerization was discussed. the catalyst can obviously accelerate the curing of the resin to decrease the curing temperature. the three kinds of reactions ( cyclotrimerization, co - reaction and polyetherification ) in their copolymerization are not simultneous and independent to each other. in the lack of cyanate functional group, the main structures are oxazoine and polyether structure in the cured resin, and the triazine ring structure is of miner importance

    研究了催化劑對環氧樹脂與氰酸酯樹脂的共聚固化反應行為的影響，並初步探索氰酸酯/環氧固化的反應歷程.研究表明，催化劑能明顯地促進其固化反應，降低固化溫度，縮短固化時間；氰酸酯與環氧共聚反應歷程是首先氰酸酯三聚反應生成三嗪環結構，然後三嗪環開環與環氧共聚反應，最後是未能參與共聚反應的環氧官能團在唑啉結構和三嗪環的催化下發生聚醚化反應；在氰酸酯官能團欠量的條件下，固化樹脂中主要是唑啉和聚醚結構，而三嗪環結構的含量很少
  10. Applications of a variety of metal - based catalysts to asymmetric oxidation of sulfides were reviewed

    綜述了各類手性金屬絡合物催化劑在硫醚不對稱氧化中的應用。
  11. Recently, the rational design of chiral metal complexes for enantiomerically catalytic oxidation of sulfides attracts much attention

    理性設計各種手性金屬絡合物催化劑應用於催化對映選擇性氧化潛手性硫醚反應中，近年來引起了化學家們較大的關注。
  12. According to the preservatives in food regulations cap. 132bd, permitted antioxidants in specified food include only propyl gallate octyl gallate dodecy gallate, butylated hydroxyanisole, butylated hydroxytoluene and ethoxyquin. tbhq is not specified in the said regulations and it is not a permitted antioxidant in fats and oils in hong kong

    食物內防腐劑規例第132bd章規定，獲準添加於指明食物的抗氧化劑只限於丙基?酸鹽辛基?酸鹽十二烷基?酸鹽經丁化作用的羥基茴香醚經丁化作用的羥基甲苯及乙氧基奎。
  13. The products are polyethers synthesized with new catalyst, characterized by low unsaturation, narrow molecular weight distribution, high activity and high primary hydroxyl content

    本產品系新型催化劑合成的聚醚，其特點是不飽和度低，分子量分佈窄，活性高，伯羥基含量高。
  14. Tetrabromobis phenol a - diallyl oxide with higher yield was synthesized in water by using phase transferring catalyst

    摘要主要研究了在相轉移催化劑存在下，水作溶劑，合成四溴雙酚a -雙烯丙基醚的新工藝。
  15. This paper reviewed latest researches in internal donors in ziegler - natta propylene polymerization catalysts, as well as the features of different internal donors ( monoesters, diesters, diethers, diketones and diol esters )

    摘要對丙烯聚合齊格勒納塔催化劑內給電子體的研究進展進行了綜述，同時分析了單酯類、雙酯類、二醚類、二酮類和二醇酯類化合物作為內給電子體催化劑的特性。
  16. The curing conditions were studied and the result indicated that the product showed a good storage, decreased the curing temperature, improved adhesion and brittleness, with an excellent film performance. expecially the adadhesion, flexibility and chemicol resistance

    結果表明，合成的交聯劑貯存性能良好，醚化三聚氰胺樹酯作為交聯利加入到丙烯酸環氧樹酯中，可以明顯降低固化溫度且改善原有塗膜的脆性，成膜性能好，尤其是具有優良的附著力、柔韌性和耐化學品性。
  17. Study on synthesis of p - nitroanisole catalyzed by chitosan pd

    殼聚糖鈀催化劑催化合成對硝基苯甲醚的研究
  18. After curing, it provides hard and glossy surface. the water and solvent resistance are better than that of butylated amino resin

    固化后塗膜堅硬光澤好耐水性耐溶劑性比丁醚化氨基樹脂有所提高。
  19. Cyclic voltammetry ( cv ) in sulphuric acid solution and dimethyl ether solution is employed to characterize the catalytic activity of the electrocatalysts ; transmission electron microscopy ( tem ) and x - ray diffraction are employed to characterize the microstructure of the electrocatalysts ; the electrochemical characteristics of the direct dimethyl ether fuel cells ( ddfc ) made from the electrocatalysts are tested by arbin fuel cell test systems

    在h2so4溶液中採用循環伏安對催化劑的電化學行為進行了評價;在飽和二甲醚溶液中採用循環伏安研究了pt / c催化劑對二甲醚氧化性能;通過透射電子顯微鏡（ tem ）和x射線衍射儀（ xrd ）分析了催化劑的表面物理特徵;通過arbin燃料電池系統對催化劑制備二甲醚燃料電池進行評價。
  20. Catalytic systems with diesters, diethers, diketones and diol esters as the internal electronic donors are newly emerging ziegler - natta systems

    其中，以二醚類、二酮類和二醇酯類化合物為內給電子體的催化體系是近年發展起來的新型齊格勒納塔催化劑體系。
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