聚合劑 的英文怎麼說
中文拼音 [jùgějì]
聚合劑
英文
polymerization chemical-
The mechanical properties indicated that the improved exfoliation degree of mmts was essential for better properties of the nanocomposites, while the mechanical properties of interc alated nanocomposites were dependent on the structure of the organic modifiers 3
有機蒙脫土層間有機物含量較高,有利於聚合物插層和mmt片層剝離分散。片層剝離分散程度大,有利於提高復合材料的力學性能;插層型復合材料的力學性能與表面活性劑分子結構有關。The results suggested that the ph value, the type of monomers, the type, concentration and surface properties of inorganic nanoparticles, the type and concentration of emulsifier have a great influence on the encapsulating emulsion polymerization and the obtained latex stability. if selecting cationic emulsifier ( ctab ), low water soluble monomers ( such as ba, st ) and hydrophobic nano - silica, the inorganic nanoparticles would be encapsulated by polymers through ultrasonic irradiation successfully under alkalescent condition
系統研究了ba 、甲基丙烯酸甲酯( mmal苯乙烯舊t )以及它們的共聚體系在超聲輻照作用下包裹聚合的主要影響因素,結果表明: ph值、單體的種類、無機納米粒子的種類、濃度及表面性能、乳化劑的種類及濃度等對超聲輻照包裹乳液聚合以及復合體系的穩定性有較大的影響。The influence of the modified h zeolite on poly - alkene oligomerization
沸石催化劑的性能對混合烯烴聚合反應的影響Comprehensive cellular responses was found in human amnion fl cells following exposure to low concentration of mnng, such as the lowering of dna replication fidelity resulted from alteration of dna polymerase profile ; activation of a lot of transcription factors, such as api, creb, nf - kb etc ; clustering of egfr ( epidermal growth factor receptor ) and tnfr ( tumor necrosis factor receptor ) and activation of camp - pka - creb and jnk / sapk signal pathways
我們發現,低劑量mnng處理后的人羊膜fl細胞有廣泛的細胞反應,並有多個信號轉導通路的激活和基因表達的改變。例如dna復制保真度下降, dna聚合酶譜發生改變,應用報告基因技術和底物磷酸化檢出技術證明細胞一系列轉錄因子如ap1 、 creb 、 nf b等被激活,細胞表面受體如表皮生長因子受體、腫瘤壞死因子受體發生聚簇,細胞信號轉導通路camp - pka - creb和jnk sapk被激活。Antifreeze agents are necessary in emulsion polymerizations carried out at low temperatures.
當在低溫下進行乳液聚合時需要加入抗凍劑。One percent phenyl-beta-naphthylamine was added to the recovered polymer as an antioxidant.
將1苯基--萘胺作為抗氧化劑加到所得到的聚合物中。Study on extraction separation rare metal ions by using a polymeric azo reagent
聚合偶氮試劑萃取稀有金屬離子的研究Insoluble polymer bactericides
水不溶性聚合物殺菌劑Uses : used in the manufacture of persulfate ; used in the manufacture of aniline dyes ; used in the treatment of oxidized metal surface ; used as the initiator for the polymerization of monomers ; used in decoloring and bleaching of oil, cleaning and deodorization of deteriorating barm, accelerating ripening agent ; used as additive for under - well fracturing in petroleum mining
用途:用於製造過硫酸鹽的製造;用於苯胺染料的製造,甕染料的氧化發色劑;用於氧化金屬表面處理;用於有機合成工業中,高分子物聚合的引發劑;油的脫色和漂白,變敗酵母的洗滌,脫臭,小麥的催熟劑;石油開採用于井下壓裂的添加劑。One pellet was completely encapsulated and did not react with the polyurethan e binder.
一個球完全被包覆,與聚氯酯粘合劑不進行反應。If you ' re looking for depth of color, high gloss and high shine, then meguiar ' s can offer you all of these features plus unbeatable, long lasting protection depending on your preference in formula : meguiar ' s synthetic waxes, or our more traditional waxes that include carnauba
為能在市場上提供多種多用途的漆面產品,因為沒有兩個人是相同的,美光提供一定數量的包含能使其光滑的棕櫚油的蠟,跟具有耐久性和保護性的合成聚合體保護劑一樣。Many methods are used to improve properties and performance of emulsion adhesives, including changing proportion of monomers or initiator system, improving emulsion polymerization, mixing or chemical combination with other polymers
討論了通過改變單體組成或引發體系、改進聚合工藝、通過共混或化學結合引人其他聚合物的方式改進乳液型膠粘劑性能的方法。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。Plastics - polymer dispersions - determination of sieve residue gross particle and coagulum content
塑料製品.聚合物分散劑.篩渣Standard specification for multilayer pipe type 2, compression fittings, and compression joints for hydronic heating systems
水硬水泥混凝土和灰漿用乳狀和粉末聚合物改良劑的標準規范First, a terminal double bond was introduced into 3 - amino - 9 - ethylcarbazole ( aec ) via methacryloyl chloride to obtain the compound, 3 - ( n - methacryloyl ) amino - 9 - ethylcarbazole ( mec ). second, mec was copolymerized with butyl methacrylate to prepare the mec - immobilized polymer particles. the resultant polymer particles were used as a fluorescence probe, which was almost free of dye leaching, and had higher photostability in comparison with free aec
首先利用甲基丙烯酰氯向3 -氨基- 9 -乙基咔唑( aec )分子中引入末端雙鍵,得到帶末端雙鍵的熒光指示劑3 - ( n -甲基丙烯酰基)氨基- 9 -乙基咔唑( mec ) ,然後通過乳液聚合技術將mec共價固定到聚甲基丙烯酸丁酯基體上,制得一種共價固定了mec的聚合物顆粒。In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術,有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應,提高了聚合物大分子鏈中有機硅鏈節的含量;利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵,並通過對共聚產物力學和吸水率的測試,證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能;從分子設計角度出發,利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體: ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷;利用核磁共振對新型硅烷單體結構進行了證實;研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液,且其聚合產物具有較高的力學及耐水性能。Coverage of polymer particles is obviously influenced by emulsifier structure.
顯然聚合物膠粒總數受乳化劑結構的影響。Because of the aggergation of pam, the stabilization of aggregates was greatly increased, and the rate of rainfall splash erosion was small. but with rainfall going on, the rate of splash erosion would be greatly increased
八、土壤聚合劑聚丙烯酰胺( pam )對土壤濺蝕的影響:由於聚丙烯酰胺的聚合作用,使得土壤團聚體的穩定性增大,土壤濺蝕速率較小。Secondly, essential law of soil crust formation was obtained : when coarse sand exceeded 50 %, soil crust dominated by depositional crust would be formed. when soil clay exceeded 30 % and soil aggregated degree was less than 140 %, soil surface tended to form soil crust dominated by structural crust
四、土壤聚合劑聚丙烯酰胺( pam )對控製表土結皮形成的效果: pam能控製表土結皮形成的主要原因是, pam能改善土壤的結構狀況,顯著提高土壤團聚體的穩定性,從而有效的抑制了表土結皮的形成。分享友人