聯對二甲苯 的英文怎麼說
中文拼音 [liánduìèrjiǎběn]
聯對二甲苯
英文
di-p-xylylene-
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。In chapter 3, the three 1, 1 ' - dicarbonylferrocene compounds " properties are systennically characterized by ir, uv, 1hnmr, tg, esr, xps and the infrared difference spectrum before and after irradiation 1, 1 ' - diformacyl - ferrocenebiphenyldiamine and 1, 1 ' - diformacylferrocene - o - phenylenedamine polycondensates " chemical and physical properties are characterized by elemental analysis, ir, 1hnmr, tg - dta, gpc and xps
同時，對合成的1 ， 1 』 -二甲酰二茂鐵聯苯二胺縮聚物和1 ， 1 』 -二甲酰二茂鐵鄰苯二胺縮聚物用元素分析、 ir 、 ~ 1hnmr 、 tg - dta 、 gpc及xps對其化學與物理性能進行分析。Abstract : six quasi - ternary liquid - liquid equilibria systems between benzene, toluene, p - xylene, n - heptane, methyl - cyclohexane and n - formylmorpholine ( nfm ) + water have been determined at normal pressure and 60 ; the conjugate phase compositions and the contribution curves of these quasi - ternary liquid - liquid equilibria systems were obtained ; the experimental data were correlated using uniquac and nrtl models ; the plait points of these systems were obtained by the constructive fitting for the conjugate phase and parameter predicting methods ; the selectivity and contribution coefficients of the solvent to the solutes were calculated
文摘:用液液平衡釜測定了常壓， 60下加水n -甲酰嗎啉和苯、甲苯、對二甲苯、正庚烷、甲基環己烷組分間6個擬三元體系的液液平衡，得到了擬三元液液平衡體系的共軛相組成和分配曲線；實驗數據用uniquac和nrtl模型進行了關聯；用共軛相作圖擬合法和模型參數推演算法獲得了各體系的褶點數據；並求得了溶劑對溶質的選擇性和分配系數。Chemical company located in the garden city of hubei avenue traffic developed, hubei is one of the key enterprises, the main production of medicines, pesticides intermediate, the main product b chloride, chlorine b chloride, phenol de mdma, 2, 3 - amounts jiben formaldehyde, 2, 3 - two chlorobenzene formaldehyde, 3, 5 - two regards formaldehyde, the benyi methadone, the benyisuan
仙桃市金聯化工有限公司位於交通發達的湖北仙桃，是湖北省重點企業之一，主要生產各種醫藥、農藥中間體，主要產品乙酰氯、氯乙酰氯、對芐氧基苯酚、 2 ， 3 -二甲基苯甲醛、 2 ， 3 -二氯苯甲醛、 3 ， 5 -二羥基苯甲醛、聯苯乙酮、聯苯乙酸。Using the orthogonal experimental technique, we studied modified pva by formaldehyde, urea and tdi, and analyzed the influence of synthesis condition to its solid content, viscosity, dissolving rate and crosslinking degree
摘要採用正交實驗方法，研究了甲醛、尿素和甲苯二異氰酸酯對聚乙烯醇的疏水改性，並分析了合成條件對其固含量、黏度、溶出率和交聯度的影響。Applications of infrared spectroscopy in the structural study of poly ( ethylene terephthalate ) ( pet ) fibers in recent years have been reviewed. some techniques of sample preparation for infrared measurement have been introduced. characterizations and applications of the structural parameters, such as conformers contents, chain orientation, folded chain contents, and the relationship between these parameters and yarn properties haven been summarized
回顧了近年來紅外光譜在聚對苯二甲酸乙二醇酯（ pet ）纖維結構研究中的應用，介紹了纖維制樣技術，歸納了構象含量、取向、折疊鏈含量等結構參數的表徵方法及其應用，以及這些結構參數與纖維性能間的聯系。分享友人