耐化學聚合物 的英文怎麼說

中文拼音 [nàihuàxuéjùgěwù]
耐化學聚合物 英文
chemical resistant polymer
  • 耐 : 動詞（受得住; 禁得起） be able to bear or endure
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 聚 : 動詞（聚集; 聚積） assemble; gather; get together
  • 合 : 合量詞（容量單位） ge, a unit of dry measure for grain （=1 decilitre）
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 聚合物 : [化學] polymer; polymerizate; polymeric compound; polymeric substance; polymeride; polymerized su...
  • 聚合 : 1 （聚集到一起） get together2 [化學] （單體結合成高分子化合物） polymerization; polymerize 3 [生...
  1. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。
  2. Finally, several application standarded areas of foluranted polymers were proceeded, for example, practice to big wild goose pogoda of tang dynasty, to banpo archaeological site of yanshao time, to zhongshan grotto sandstone of jin period, to zhongguan mint pottery mould of han dynasty, and to neolithic polychrome pottery, etc. the research clearly expressed that two of fluranted polymers proposed the excellent anti - chemicals ; good bear aging and wonderful size stability

    最後，用兩種含氟聚合物對唐代的西安大雁塔、仰韶文化代表的半坡土遺址、西晉時期的鐘山砂巖石窟、漢代鐘官鑄錢陶范、新石器時代彩陶等多孔文物進行了標準實驗區的保護實施。研究結果表明，兩種含氟聚合物具有良好的耐化學性、耐候性及尺寸穩定性。
  3. Compared with cotton, vinylon has stronger tenacity and elongation, better abrasive resistance, stronger hygroscopicity, and better heat preservation, and it has better resistance to chemical corrosion, sunlight, moth, mold, and radiation as well. vinylon can be spun with cotton or other fibers into knitting goods and other cloth. it is also used as industrial fiber for the manufacture of tire cord, conveyer, fire hose, fish net, ropes, canvas, filter cloth, and rubber items etc

    維尼綸是以聚乙烯醇為原料紡成的合成纖維，其性能與棉花相似，與棉花相比又有強伸度大耐磨性好吸濕性強的優點和更好的耐化學腐蝕性耐曬性耐蛀霉性保暖性及耐輻射性等，可與棉花及其它纖維混紡以織造針織物及其它用布，同時作為工業用纖維，廣泛用於製造輪胎簾子線運輸帶水帶魚網繩索帆布過濾布及橡膠製品等。
  4. Standard test method for linear shrinkage and coefficient of thermal expansion of chemical - resistant mortars, grouts, monolithic surfacings, and polymer concretes

    耐化學腐蝕的灰漿薄漿整體面層和聚合物混凝土的熱膨脹系數和線收縮性的標準試驗方法
  5. In order to develop the high performance polymer modified cement based waterproofing coating, cross - linking modification and nanometer modification were used to improve its performance based on the research of the relationship of its structure and performance in this paper. the microstructure of the waterproofing films was analysised by sem, tem, afm, xrd and ftir, and its mechanical property, ageing performance and resistance to water were studied

    為研製高性能聚合物水泥基防水塗料，本論文在對聚合物水泥塗膜的結構與性能關系的研究基礎上，通過交聯改性和納米改性來提高聚合物水泥基防水塗料的性能，採用sem 、 tem 、 afm 、 xrd和ftir等測試方法對改性聚合物的結構進行了表徵，並對改性防水塗膜的力學性能，耐水性能，耐紫外老化性能和耐熱老化性能進行了研究。
  6. Yet, other polymer - coating materials are being used for protection against corrosion, aggressive chemical environments, thermal shock, impact, wear, and abrasion

    甚至，還有的聚合物塗料被用於防腐蝕，防化學環境的侵蝕，防熱沖擊，防沖擊，防磨損、耐磨蝕的方面。
  7. The organic - mmt modified polyacrylate emulsion was prepared by emulsion intercalation, which the cement based waterproofing coating was modified by, which had the good mechanical property, the good ageing performance and the good resistance to water

    採用該乳液制備的聚合物水泥防水塗膜具有優良的力學性能、紫外老化性能、熱老化性能和耐水性能。有機蒙脫土的最佳用量為3 。
  8. Pes is a good membrane materials which possess excellent properties, such as high mechanical strength, good chemical stability and resistance to heat, pressure and erosion, its temperature of glass transition is 225

    聚醚碸（ pes ）是一種綜合性能優良的聚合物膜材料，其玻璃化溫度高達225 ，具有較高的拉伸強度和優良的化學穩定性、耐熱性、耐壓力，耐腐蝕等性能。
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