膠凝乙醇 的英文怎麼說
中文拼音 [jiāoníngyǐchún]
膠凝乙醇
英文
gelled alcohol-
The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm
本論文以開發無機?有機復合納濾膜為出發點,首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜;選用聚乙烯醇和聚酰胺為表面功能層材料,分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑,採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜;以均苯二甲酰氯、哌嗪和二胺為單體,採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜,並對影響膜性能的諸多因素進行系統研究。Studies on the hardness of chitosan - polyvinyl alcohol hydrogel
聚乙烯醇水凝膠的硬度研究The pertinent research work has been carried out as follows : the transparent nano - tio2 films on soda - lime glass substrates were obtained by sol - gel process. the precursor of nano - tio2 film was ti ( oc4h9 ) 4 and the menstruum was c2h5oh. the preparation conditions which were effecting the nano - tio2 quality were researched
本文主要就納米tio _ 2薄膜的制備、探索用ecr氮等離子納米tio _ 2的摻雜改性等開展了如下的工作:本文採用溶膠?凝膠法,以鈦酸丁醋做前驅體、無水乙醇做溶劑,水解制備溶膠,然後通過提拉法制備納米tio _ 2薄膜。However the binary catalysts system favors low residue content. it was found that the residue content were remained at a low level with ethylene glycol as the reaction media and 6 % ( by mass ) of sulfuric acid as the catalyst in the presence of phenol. the contents of lipophilic products were investigated
經凝膠色譜法測定表明,以濃硫酸苯酚為催化劑、乙二醇為反應介質的反應體系,所得到液化產物的平均相對分子質量最低, m _ w為806 , m _ n為799 。According to the polarity, the residue was isolated with petroleum ether, chloroform, ethyl acetate, and n - buoh, respectively. the n - buoh fraction, confirmed as neuroactive component, was subjected to sephadex lh - 20 column chromatography to provide an extract fraction, as a buff powder, which could induce neurite outgrowth in rat pheochromocytoma pc12 cells in a dose - dependent manner up to 50 mg / l
將菟絲子乾粉用75乙醇浸泡后,減壓蒸干后得到褐色漿狀物,經石油醚、氯仿、乙酸乙酯、正丁醇萃取,經柱層析后,再用葡聚糖凝膠對有效成份進一步純化,獲得了菟絲子中能誘導pc12細胞分化的活性組分。Then the gel film can be prepared by dip - coating or spin - coating technique on the surface of glass and followed by drying in the ethanol vapor
使用浸漬提拉法或旋轉塗敷法,並通過放在乙醇蒸汽中乾燥,可在玻璃表面得到均勻的凝膠膜。The ratio of tetraethyloxysilane ( teos ) : ethanol : distilled water is 1 : 3 : 4. n - n " dimethyl formamide ( dmf ) was used as solvent and drying control chemical additive ( dcca ) in a proportion of 0. 3 dmf / ethanol volume ratio. drops of hf / hc1 mixture acid was added to promote hydrolysis ( ph = 2 )
溶劑的選擇對基質凝膠孔的形狀基本沒有影響,但對其孔徑分佈有較大影響:在hf / hci混合酸催化情況下, dmf溶劑的樣品孔徑最小, dmf /乙醇混合溶劑的其次,乙醇溶劑的樣品孔徑最大。The results displayed that the spectra were wider than that of one single dye and there were energy transfer between c102 and rh6g. in silica films the energy transfer efficiency was higher than that in ethanol solutions
C102 : r上6gh元混合染料間存在著能量傳遞,將其摻雜到isio 。凝膠中,發現與無水乙醇溶液中相比;能量轉移效率增加,光譜i展寬,原因可能是出。An active metabolite was obtained by purification with precipitated by ethanol, sephadex g - 25 gel, deae - cellulose ion exchange resin and silica gel column chromatography
經乙醇( 95 )沉澱、 sephadexg - 25凝膠層析、 deae -纖維素離子交換層析和硅膠層析純化,得到抑制黑麴黴生長的單一組分。As for the change of reaction temperature, a good appearance of microspheres will be observed. after heat treatment we obtain the mesoporous sio2 microspheres, the morphology, size and size distribution of microspheres before and after sintering were investigated by using the scanning electron microscopy ( sem ). the desorption of water and ethanol and decompostion of polymers in microspheres were analyzed by using tg - dsc machine
當r 1時將導致微球產生破裂,而r 4時則生成凝膠狀物質;其他條件不變時,微球形貌隨ph值的增大逐漸變差,最終破裂;乙醇含量增大時,微球粒徑逐漸增大;而隨著反應時間的進行,顆粒逐漸長大,微球形貌不斷完善,表面逐漸平滑;反應溫度的變化會得到更光滑的微球表面,微球粒徑隨之增大。The water dispersing solution of lukang ? gel is compatible with water - miscible solvent, such as 20 % ethanol, 50 % glycerin water solution, and so on
綠康凝膠的水分散液,能夠和可以以水相混溶的溶劑混合,如: 20的乙醇、 50的甘油等。The antimicrobial secretion could be divided into three sections, every section had antimicrobial activity. the first could be extracted by petroleum ether, the second could be extracted by ethyl alcohol, the third could dissove in water and could be separated by sephadex g - 50, g200 gel filtration chromatography and carbornmethyl cellulose - 1 anion - exchange chromatography and detected by a256, . the antimicrobial secretion had wide spectrum and had strong inhitory activity against germs and fungi, they could inhibit sixteen kinds of plant pathogenic germs, eight kinds of animal germs and eight kinds of plant pathogenic fungi
粗提物經石油醚萃取可得第一個活性部分,剩餘部分經無水乙醇萃取可得第二個活性部分,剩餘物質再經凝膠sephadexg - 50後有兩個峰,第二峰有活性,再經凝膠sephadexg - 200後有三峰,第二峰有活性,將其經過陽離子交換柱cm - 1後有兩峰,此兩峰均有抑菌活性。The polyvinyl alcohol ( pva ) in precursor can improve the porosity and make the aperture distribution narrower. so the gels were not easily crazing when drying. simultaneously the fluorescence intensity of the dyes increased as a result of the probabilities of radiationless transitions
在先驅液中加入少量有機聚合物聚乙烯醇1 ( pva )不僅改善了孔結構,使孔徑分佈窄,凝膠在乾燥過程中不宜開d裂,而且使摻于其中的染料分子的遷移運動受到限制;降低了非輻射i躍遷的幾率,提高了染料的熒光強度。The scope of this study is to find an effective method and appropriate additives to prepare chitosan composite membranes with good physical and biological properties. glycerol is a good additive that could make the chitosan composite membranes have good flexibility and keeps the wound dry. in this paper, chitosan / glycerol blend membranes were prepared by the sol - gel transformation method
當甘油含量為8 ,用無水乙醇、甘油和氫氧化鈉按一定比例配製成的凝膠混合液在70凝膠2小時制備的殼聚糖甘油膜五色透明、表面光潔、無氣泡、手感柔韌性較好,拉伸強度和斷裂伸長率最佳,可以滿足實際應用需要。The tio2, cds and cds - tio2 films on the common glass substrate were prepared, respectively, using ti ( oc4h9 ) 4, cd ( cooch3 ) 2 and scn2h4 as raw materials by sol - gel method. the influences of manifold preparing parameters ( such as the concentration of sol, the amount of the peg. the number of coatings, the heat - treated temperature and time ) on the structure and performance were studied
本文採用溶膠-凝膠技術,以鈦酸丁酯、乙酸鎘和硫脲為原料,以普通玻璃片為載體,制備了納米tio _ 2薄膜、 cds薄膜和cds - tio _ 2復合半導體薄膜,研究了制備過程中多種制備參數(如溶膠的濃度,聚乙二醇( peg )的加入量,鍍膜層數,熱處理溫度及時間)對薄膜結構和性能的影響,採用x -射線衍射( xrd ) 、掃描電鏡( sem ) 、能譜分析( edxa ) 、紫外-可見吸收光譜( uv - vis )等測試手段對各薄膜進行了結構和物性表徵。The formation mechanism of barexfe12 _ xol9in heat treatment was firstly deeply discussed, and the action mechanism of complexing agent ( citrate ) and dispersant ( glycol ) during the formation of the gel was also firstly studied
首次對溶膠-凝膠燃燒合成法熱處理過程中稀土摻雜鋇鐵氧體的生成機理進行了深入研究,同時初步查明了過程中絡合劑(檸檬酸)和分散劑(乙二醇)的作用機理。The optimal molar ratio of bzach was ti4 + : bzach = l : 0. 8, and the solvent was ethyl alcohol and de - ionied water. after heat treatment, the thickness of the thin films was about 70nm and the line width was 0. 5 urn
用此溶膠制備bst凝膠膜,通過激光干涉制備了bst薄膜光柵,溶洗劑為乙醇十去離子水,圖形熱處理后的厚度約為70nm ,線寬約為0 . 5卜m 。分享友人