環酐 的英文怎麼說

中文拼音 [huángān]
環酐 英文
cyclic anhydride
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 酐 : 名詞[化學] （酸酐的簡稱） anhydride
  1. Separately, tma can be used as the cross linking agent to make the polyester resin and epoxy resin for the making of thermoset powder coatings, binding agent, and intermedium of dyestuff, medicine, and resin. moreover, tma can be used to make polyester imido coatings which care special insulated paints for motors

    另外，偏酐還可以作熱固性粉末塗料聚脂樹脂和環氧樹脂的交聯劑，可用於分散性氨基甲酸乙脂聚脂中，使其在環境溫度為70時，性質穩定，並具有高光澤度快乾耐磨等多種特性。
  2. Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride

    常州濤峰化工有限公司座落在江蘇國際塑化城，是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口，主要經營產品：甲苯、純苯、二甲苯、辛醇、乙酸乙脂、乙酸丁脂、硅油、二苯胺、雙聚丁二酰亞胺、苯三唑衍生物、異丙醇胺、乙醇胺、烷基二苯胺、防垢劑、促進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12柴油流動改進劑、硫磷丁辛基鋅鹽、氯橋酸、氯橋酸酐、氯苯、雙聚環戊二烯、降冰片烯二酸酐等。
  3. By virtue of the anhydride property of the isoimide rings, the piis were reacted with the alcohols to form poly ( amic acid ) esters ( paes )

    利用異酰亞胺環具有酸酐性質的特點，使之與醇類反應，得到溶解性能優良的聚酰胺酯（ paes ） 。
  4. The amidation and esterification of different cyclic anhydrides with aniline and phenol gave different major products, and the routes were optimized

    摘要研究了環酐與苯胺和苯酚的酰胺化及酯化反應，優化了酰胺化及酯化反應條件。
  5. The serum creatinine, blood urea nitrogen, triglyceride and low density lipoprotein decreased significantly in the jpqhr - treated group as compared with those in the control group ( p < 0. 05 ), while the number of erythrocyte rosette - forming cells increased significantly in the jpqhr - treated group as compared with those in the control group ( p < 0. 05 )

    結果：健脾清化方組患者的臨床癥狀有明顯改善，血肌酐、尿素氮、甘油三酯和低密度脂蛋白均有下降，而紅細胞總花環有顯著增加，與對照組比較，有統計學意義（ p < 0 . 05 ） 。
  6. Effects on properties of nr / sbr / pa66 compound of modified rubber such as enr - 50, mg49, epdm - g - mah and nr - g - mah were investigated, besides utilizing pretreated short fiber and adhesive agents, so as to improve the adhesion on the surface between rubber and short pa66 fiber. first, mah grafted nr was made by myself using brabender plasticord from south china university of technology, while other modified rubber was procured from certain organizations

    重點研究了環氧化天然橡膠（ enr - 50 ） 、甲基丙烯酸甲酯接枝天然橡膠（ mg49 ） 、三元乙丙橡膠接枝馬來酸酐（ epdm - g - mah ）及順酐化天然橡膠（ nr - g - mah ）等改性橡膠對sfrc性能的影響。
  7. The resin of alkali developable photosensitive has been synthesized from the raw material of acrylic acid, maleic anhydride and epoxidized soybean oil

    摘要以環氧大豆油、丙烯酸和馬來酸酐為原料合成了堿溶性光敏環氧丙烯酸酯齊聚物，用紅外光譜對產物進行了表徵。
  8. In this paper, 1, 1 - diacetate was synthesized from furfural and acetic anhydride by acidic bentonite friendly to environment as catalyst with excellent yield ( 87. 6 % )

    摘要利用對環境友好的酸性皂土做催化劑，糠醛與乙酸酐發生縮合反應合成了1 ， 1 -二乙酸酯，產率高達86 . 6 % 。
  9. Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr

    對苯醌與乙酸酐經1 ， 4 -加成生成1 ， 2 ， 4 -苯三酚三乙酸酯，然後與蘋果酸反應經水解、環合反應得6 ， 7 -二羥基香豆素，再經甲基化得到6 ， 7 -二甲氧基香豆素，總收率為74 . 4 % ，整個過程反應條件溫和，操作方便，適合工業生產的要求，對產品結構進行了ir和1hnmr表徵。
  10. When a conjugated system was contained in the cyclic anhydride, it gave n - phenylimide as the major product

    結果表明，環酐的分子結構直接影響反應結果，當酸酐分子存在共軛結構時以n -芳基內酰胺為主要產物。
  11. The catalytic activity of iodine in the esterification reaction was studied by synthesis cyclohexyl acetate from acetic anhydride, cyclohexano and acetic acid, cyclohexano

    摘要以單質碘為催化劑，通過乙酸酐、環己醇及乙酸、環己醇為原料合成乙酸環己酯，對碘的催化活性進行了研究。
  12. There are so many molecules involved the fertility, such as : spl7, a mammalian testis - and sperm - specific protein, can specifically bind with zona pellucida, dextran, dextran sulfated, and fucoidin. another germ cell cyritestin is a testis - and sperm - specific protein belonging to the adam family. it has a disintegrin domain at the n - terminal, known as a integrin ligand, that suggests cyritestin could be involved in sperm adhesion and fusion with the egg membrane previous study demonstration

    配子中的許多分子均參與了上述關鍵環節，如在精母細胞、精細胞和睪丸精子中表達，並特異性與卵子透明帶糖蛋白、葡聚糖、糖酐脂結合的精子表面蛋白17 （ sp17 ） ，以及參與識別或與卵子膜上的整合素相互作用的adam家族成員之一的cyritestin蛋白等。
  13. In this paper, the various kinds of accelerators which were used for curing epoxy resin with acid anhydride, and the accelerative mechanism in the epoxy resin curing system were introduced

    摘要評述了幾類用於酸酐固化環氧樹脂的促進劑及其在酸酐/環氧體系中的固化促進機理。
  14. ( 2 ) xrd analysis showed that phenolic resin molecules could insert into the interlayer of organic - montmorillonite, but there are some differences of the behavior of intercalation between thermosetting phenolic resin and thermoplastic phenolic resin. ( 3 ) the cure kinetics parameters of epoxy resin / org - mmt / deta, epoxy resin / org - mmt / toa and epoxy resin / org - mmt / mz nanocomposites were investigated by differential scanning calorimetry ( dsc ). some kinetics parameters including the reaction order and activation energy were caculated with kissinger method

    （ 3 ） dsc研究了環氧樹脂二乙烯三胺蒙脫土、環氧樹脂桐油酸酐蒙脫土、環氧樹脂咪唑蒙脫土固化體系在不同org - mmt配比（ 0 ， 5 ， 10 ）及不同溫度下的固化動力學，除了運用常見的kissinger和crane方法求出活化能和反應級數等動力學參數外，還嘗試了用修正的avrami方程和自催化動力學模型研究了環氧樹脂蒙脫土體系的固化動力學。
  15. Ftir and xps proved that ptcda and tcpc were attached on the surface of silicon by covalent ; afm and uv - vis showed ptcda and tcpc arranged orderly on surface of silicon ; through raman spectrum, we found that macrocycle molecules stand on surface of silicon, while macrocycle molecules in film by vacuum deposition parallel to silicon surface

    紅外光譜和光電子能譜證明了?和酞菁成功的化學鍵合到單晶硅表面， afm和uv - vis吸收光譜表明了?和酞菁單層膜在硅基上呈有序排列。拉曼光譜的研究發現?酐分子大環以一定的角度立於硅基表面，而不是平行於基體表面，與蒸鍍手段得到的?酐膜的堆積形態完全不同。
  16. Determination of free acid in acid anhydride - based hardeners for epoxide resins

    環氧樹脂用酸酐基硬化劑中游離酸的測定
  17. Plastics - hardeners and accelerators for epoxide resins - determination of free acid in acid anhydride

    塑料.環氧樹脂用固化劑和促進劑.酸酐中游離酸測定
  18. En iso 7327 plastics. hardeners and accelerators for epoxide resins. determination of free acid in acid anhydride

    塑料.環氧樹脂硬化劑和促凝劑.酸酐中游離酸的測定
  19. Plastics - hardeners and accelerators for epoxide resins - determination of free acid in acid anhydride iso 7327 : 1994 ; german version en iso 7327 : 1997

    塑料.環氧樹脂固化劑和催化劑.酸酐中游離酸測定
  20. As to epoxy / toa / org - mmt system, the reaction order was 0. 9 and active energy was 66kj / mol by kissinger method ; and a similar result was obtained by ozawa method. the curing reaction was controlled clearly by diffusion mechanism in the later stage of curing reaction without addition of org - mmt, which leads to the increment of active energy with extend of curing ; as to the curing system with addition of org - mmt, the value of active energy was always kept the same level, which can be explained by the catalytic function of amine salt inserted in the galleries of org - mmt

    對于環氧桐油酸酐有機蒙脫土固化體系用kissinger方法看到固化體系的反應級數均為0 . 9左右，表觀活化能值為66kj mol ； ozawa方法的處理結果與之近似，但從ozawa方法可以看到未加入有機蒙脫土的體系在反應後期固化反應明顯受擴散控制，表現為活化能隨固化程度的增加而增加；而加入有機蒙脫土的體系，其表觀活化能則自始至終表現的較為均勻。
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