耐熱聚合物 的英文怎麼說
中文拼音 [nàirèjùgěwù]
耐熱聚合物
英文
heat resistant polymer- 耐 : 動詞(受得住; 禁得起) be able to bear or endure
- 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...
- 耐熱 : heat resisting; heatproof; resist heat耐熱玻璃 pyroceram; heat resistant glass; 耐熱合金 heat res...
- 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...
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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。The mechanical properties and the resistance to water and heat of the polymer modified cement based waterproofing coating are greatly improved by the synthesized melamine resin
三聚氰胺甲醛樹脂交聯劑可明顯改善聚合物水泥基塗料的力學性能、耐熱性能和耐水性能。The synthesized single strain oligonucleotides were separated by high performance liquid chromatography. the thermostable dna polymerase was used to catalyze snupe and the reactions of snupe for two y - snp loci were developed
利用耐熱dna聚合酶催化單堿基引物延伸反應,建立2個y - snp的單堿基引物延伸反應。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 。Methods of test for rubber and plastics hoses and hose assemblies - physical tests - determination of fracture resistance of rigid polymer helical reinforcement in thermoplastics hoses
橡膠和塑料軟管組件的試驗方法.第103部分:物理試驗.第7節:熱塑軟管用剛性聚合物螺紋鋼筋耐斷裂性測定Common test methods for insulating and sheathing materials of electric cables. part 4 : methods specific to polyethylene and polypropylene compounds. section one : resistance to environmental stress cracking - wrapping test after thermal ageing in air - measurement of the melt flow index - carbon black and or mineral filler content measurement in pe
電纜絕緣和護套材料通用試驗方法第4部分:聚乙烯和聚丙烯混合料專用試驗方法第1節:耐環境應力開裂試驗-空氣熱老化后的卷繞試驗-熔體指數測量方法-聚乙烯中碳黑和或礦物質填料含量的測量方法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。When the proportion of polymer and cement is high, the continuous phase is made up of polymer, the inorganic particles are dispersed in the polymer phrase, so the films have good extensional performance and low temperature flexibility ; when its proportion is low, the hydrated cement forms the local rigid gel network, so extensional performance and low temperature flexibility of films reduce obviously, but the resistance to water, ultraviolet and thermal ageing of films is improved
高聚灰比時,聚合物構成了連續相,水泥等以粒狀分散在聚合物中,塗膜具有優良的延伸性和低溫柔性;低聚灰比時,水泥水化形成了剛性的局部凝膠網路,使塗膜的延伸性和低溫柔性都顯著降低,但可提高塗膜的耐水、耐紫外老化和耐熱老化能力。Standard test methods for heat resistance of polymer linings for flue gas desulfurization systems
煙道廢氣脫硫系統聚合物襯里耐性能熱標準試驗方法Common test methods for insulating and sheathing materials of electric cables - part 4 : methods specific to polyethylene and polypropylene compounds - section 1 : resistance to environmental stress cracking - wrapping test after thermal ageing in air - measurement of melt flow index - carbon black and or mineral filler content measurement in pe
電纜絕緣和鎧裝材料通用試驗方法.第4部分:聚乙烯和聚丙烯復合物專用方法.第1節:耐環境應力裂化試驗.空氣中熱老化后的纏繞試驗.溶體流動指數的測量. pe中炭黑和或礦物填充料的含量測量The methods of toughening epoxy resin by thermotropic liquid crysalling polymer ( tlcp ) are summarized and the theories on toughening epoxy resin by tlcp are put forward in this paper
摘要在22篇參考文獻的基礎上綜述了熱致性晶聚合物增韌環氧樹脂的研究進展,主要包括工藝、機械性能、耐熱性能、增韌機理等,並指出今後研究的方向。Polymer / montmorillonite ( mmt ) nanocomposites is a kind of novel composites and arouses great interest due to its excellent synthetical properties. in this paper, different polymerization methods are used to prepare pmma / mmt nanocomposites, whose thermal property and mechanical properties are obviously improved. the effects of mmt and organo - mmt ( ommt ) on the bulk polymerization mechanisms of methyl methacrylate and terminal polymer structure are also studied
本文通過不同的聚合方式制備得聚甲基丙烯酸甲酯蒙脫土納米復合材料,改善了材料的耐熱性能和力學性能等;重點研究了蒙脫土( mmt )以及有機蒙脫土( ommt )對本體法甲基丙烯酸甲酯( mma )聚合反應機理以及聚合物結構的影響。This article reviews recent progress in research on the preparation, thermal properties and orientation stability of aryl polyimide based second - order nlo materials : host - guest system, maid - chain system, side - chain system and crosslink system, and points out the study direction for future efforts
摘要綜述了近年來採用芳香聚酰亞胺為骨架的主客體摻雜型、主鏈型、側鏈型和交聯型的二階非線性光學聚合物材料在合成方法、耐熱性和取向穩定性等方面的研究進展情況,並根據目前存在的問題,展望了今後的研究方向。One current trend for polymer stabilizers is to prepare reactive stabilizers for improving thermal stability and extraction resistance of polymers
摘要研究反應型穩定劑是提高聚合物耐熱性和耐萃取性的一種發展趨勢。Polymer / mmt nanocomposite is a new class of material. they can attain excellent mechanical properties, thermal stability and barrier properties at lower clay content. their potential applications include film, food packing, components in electrical parts, automobile and airplane
聚合物粘土納米復合材料是目前新興的一類復合材料,在粘土含量不高時,就能表現出優異的力學性能、耐熱性、及阻隔性等,因此這類材料在薄膜、食品包裝及電子、電器和汽車、飛機的零部件方面具有廣闊的應用前景。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。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 。Finally, the pmma / sio2 micron - composites was prepared by in - stu polymerization, and the properties of this composites filled with different surface characteristic and content ratio white carbon was study. the results revealed that improving interfacial compatibility and strength between micron - white carbon and polymer were beneficial to improving the mechanics, thermal stability and resistant solvent
結果表明:對于微米級的白炭黑粒子,提高其與聚合物基體的界面相容性和界面強度,對復合材料的力學性能、熱穩定性以及耐溶劑性能有很好的改善。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。分享友人