聚合調節劑 的英文怎麼說
中文拼音 [jùgědiàojiéjì]
聚合調節劑
英文
polymerization regulater- 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)
- 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
- 節 : 節構詞成分。
- 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...
- 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...
- 調節 : regulate; adjust; monitor; measure; take care of; condition; regulation; adjustment; conditioning...
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Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction
目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素,以便充分掌握影響孔度大小、分佈、形態的因素,使孔度調控范圍得以拓寬,使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發,分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程,它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程,可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料,其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜,通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定,不同厚度的多孔膜形貌研究,不同x (聚合物-溶劑相互作用參數)體系所制備的多孔膜形貌等需深人研究In conclusion, the properties of the polymers can be controlled to some extent by simply adjusting the ratio of the catalysts ( n ( fe ) / n ( zr ) ) in the in - situ copolymerization of ethylene
在乙烯原位共聚中,可以通過調節齊聚催化劑與共聚催化劑的配比對聚合產物的物理性能進行控制。In the microemulsions - mediated methods, the nanosize water droplets show thermodynamically stabilization by the means of the surfactants ( sometimes and cosurfactants ) films, that serve as nanosize test tubes, thus limiting particles growth and minimizing particle aggregation. the technique have been applied in some fields including inorganic nanoparticles synthesis, organic polymerization and enzyme catalyst activitization
在反相微乳液中,由於表面活性劑和助表面活性劑的作用,提供了一個熱力學穩定的納米尺度的水核空間,該水核空間作為可以調節的模版(又稱為智能微反應器) ,對于合成各種無機納米粒子、有機物的聚合以及增加酶的活性都已經引起了廣泛的注意。The synthesis isotactic polymers is usually only possible by means of special stereospecific (stereoregulating)initiators.
通常只能用特殊的立體定向(立體調節)引發劑來合成等規聚合物。The influence of retarder on the seaing time and ultimate strength of gypsum plaster was investigated in this paper. the experimental results indicate that the effect of single retarder, such as citric acid, is inferior to that of composite retarder which was made of blending citric acid with a few portland cement ( about 0. 5 ?, by weight ). the effect of different water - retention agents, such as polyvinyl alcohol ( pva ), carboxymethyl cellulose ( cmc ), and na - bentonite, etc., was also studied, and the results demonstrate that by means of adding organic and inorganic water - retention agent simultaneously the water - retention of plastering slurry can obviously be improved. the optimal mix proportion of gypsum plaster suitable to finish coat of walls and ceilings of buildings has been got by use of factorial experiment with orthogonal array accounting for interactions between factors each other
研究了分別以檸檬酸、檸檬酸與普通硅酸鹽水泥復合物作緩凝劑,調節粉刷石膏的凝結時間,並對比2種緩凝體系對石膏抗折、抗壓強度的影響.比較不同保水劑(聚乙烯醇、羧甲基纖維素)以及相同量的保水劑在不同工藝流程下保水效果上的區別.探索了有機保水劑和無機保水劑對粉刷石膏的保水性的影響.結果表明,檸檬酸與普通硅酸鹽水泥的復合緩凝劑比單純的檸檬酸更能有效地延緩建築石膏的凝結,同時建築石膏的抗折、抗壓強度降低幅度減小The processing techniques to manufacture gap net polymer and gap fuel - rich propellant were determined by means of careful selections of curing parameter, proper curative and crosslinking agent, addition of stabilizer and etc. the mechanic property of gap propellant was modified by addition of chain extender. as a result, the gap fuel - rich propellant was developed. by means of dsc and pdta methods, the thermal decomposition characteristics of gap model fuel - rich propellant and its ingredients at both 0. 1 and 0. 5 mpa were investigated
通過調節固化參數,選擇合適的固化劑和交聯劑體系,添加安定劑以及改進工藝步驟等方法,解決了gap預聚物及gap貧氧推進劑制備工藝中的關鍵技術;採用添加擴鏈劑的方法改善了gap貧氧推進劑的力學性能;最後研製出一個可實用的gap貧氧推進劑配方。Polymer dispersions and redispersible polymer powders for cement modifiers
水泥調節劑用聚合物分散劑和可再分散的聚合物粉末分享友人