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emulsion
    With sodium polyether sulfovinate modified polysiloxane and sodium lauryl sulfate as composite emulsifier system, using methyl methacrylate(MMA) and self-made monomer γ-[tris(trimethylsiloxy)silyl]propyl methacrylate(TRIS) as raw materials, we prepared the homopolymer of TRIS, MMA, and the copolymers (P(MMA-co- TRIS)) by means of semi continuous dropwise method of monomer emulsion.
    利用甲基丙烯酸甲酯(MMA)和自制的γ-甲基丙烯酰氧丙基三(三甲硅氧基)硅烷(TRIS)为原料,以聚醚改性聚硅氧烷硫酸酯钠与十二烷基硫酸钠为复配乳化剂,采用单体乳液半连续滴加法,分别制备了有机硅均聚物(PTRIS)乳液、有机硅-甲基丙烯酸甲酯共聚物(P(MMA-co-TRIS))乳液和聚甲基丙烯酸甲酯(PMMA)乳液。
    The result indicated that we can get stable homopolymer and copolymer emulsion with uniform size distribution, when the ratio of sodium polyether sulfovinate modified polysiloxane to sodium lauryl sulfate was two, the quantity of the emulsifiers ranged from 6% to 8%(relative to monomer), the quantity of initiator ranged from 0.4% to 0.8%(relative to monomer), the stirring speed ranged from 200rpm to 250rpm, the polymerization temperature was 80 centigrade degree.
    结果表明:当乳化剂用量在6%~8%(相对单体量)、改性乳化剂与十二烷基硫酸钠复配比为2:1、引发剂用量在0.4~0.8%(相对单体量)、聚合温度为80℃、搅拌速度在200~250rpm时,得到的均聚物和共聚物乳液稳定,而且粒径分布均匀;
    and good physical and chemical property was formed by the emulsion OAE400、 lauric acid polyethylene glycol 400 ester and TX-10、 the dispersant calcium lignin sulphomate andBX、 thichener OX-638、 the counterfreeze PEG200 or diglcol ether.
    试验表明:选用乳化剂油酸聚已二醇400、月桂酸聚已二醇400酯和TX-10,分散剂木钙、BX、增稠剂OX-638,抗冻剂聚已二醇200或一缩二己二醇可得到性能良好的微囊悬浮剂。
    The inverse emulsion copolymerization of dimethyldiallylammonium chloride - acryl amide was carried out using paraffin liquid as oil-phase medium, Span 80/Tween 80 as emulsifying agent.
    研究了以液体石蜡为连续相,Span80-Tween80为乳化剂的丙烯酰胺-二甲基二烯丙基氯化铵共聚物的反相乳液。
    Microcapsule in good condition by spray-drying technological parameters as follows can be obtained: the Gum Acacia and Maltodextrin was in proportion of 1:1 as the wall materials, the proportion of clove essential oil to wall materials was 1:12, the concentration of the emulsion was 20%, the using quantity of emulsifier was 0.3% emulsion, temperature of entering wind and out wind were 220℃ and 180℃, homogenizing time was 15 minute.
    最佳的喷雾干燥条件为:进风温度为220℃,出风温度为80℃,均质时间为15min。 试验得到的最佳配方:阿拉伯胶:麦芽糊精=1:1,心材:壁材=1:12,固形物浓度为20%,乳化剂用量为乳化液质量的0.3%。
    EW (Emulsion, Oil in Water) of Agrochemical’s formulation, which is also called as CE (concentrated emulsion), is a new pesticide formulation by using water as dispersing medium, and by the action of dispersant, or emulsifier or other additive agent to make the technical agrochemicals (solid or oil-liquid) suspended or dispersed in water. EW uses water as substrate.
    农药水乳剂(emulsion ,oil in water,EW)也称浓乳剂(concentrated emulsion,CE)是以水作为分散介质,农药原药(固体或油状液)借助分散剂或乳化剂及其它助剂的作用使之悬浮或乳化分散在水中的一种农药新剂型。
    The superior properties of hydricsilicone oil modified acrylic emulsion were obtained ,when hydricsilicone oil and emulsifier account for 10.0% and 3.0% respectively, and baking process were 140℃×5min.
    并对含氢硅油改性聚丙烯酸酯乳液中的影响因素进行讨论,得到含氢硅油用量为10.0%,乳化剂用量为3.0%及焙烘工艺为140℃×5min 时得到较好的牢度,但其综合性能不如硅丙共混产品的好。
    the optimized ratio between oil and water: 80:20~70:30,the viscosity of the O/W type emulsion: 109.3~386.2mPa? s at 80℃; dehydration rate after demulsification: >93.0%.
    在大范围变化降粘剂加量和油水体积比,求得乳化剂在水中的最佳加量为 0.5%wt,最佳油水比为 80:20~70:30,所得O/W型稠油乳状液 80℃的粘度为 109.3~386.2mPa·s,破乳脱水率>93%。
    2 、 The emulsion polymerization also was influenced by the dosage of emulsifier and initiator, reaction temperature and reaction time and agitating speed.
    2、乳化剂、引发剂用量及反应温度、反应时间和搅拌速度对乳液聚合反应有重要影响。
    Actyflon-G04(C_(11)H_8O_2F_(12)), BA and MMA were used as basic monomers, SDS and OP-10 as emulsifying agents, KPS as initiator in this study. Copolymers of fluorinated acrylate and free-fluorinated acrylate with different structures were synthesized by different methods. Tow-stage emulsion polymerization was applied in this study.
    论文以丙烯酸十二氟庚酯(Actyflon-G04)、甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)为单体原料,OP-10和SDS为复合乳化剂,K_2S_2O_8为引发剂,通过不同的聚合方式制备了不同结构的含氟丙烯酸酯共聚物。
    The stability of composite blending emulsion of Span-80 with Tween-80 and succinimid was also studied.
    本论文的最后,研究了Span-80分别与Tween-80、及高分子乳化剂—聚异丁烯丁二酰亚胺两种复配体系乳状液的稳定性。
    0.3%-1% of the total monomers. Choose SDS and OP-10 to be compound Emulsion. The proportion is SDS:OP-10=3.4: 1 .They account for 3%of the total monomers.
    选用SDS和OP—10为复合乳化剂,比例为SDS:OP—10=3.4:1,用量为单体总量的3%。
    The effect of initiator concentration,EDTA concentration,initial monomerconcentration,sodium formate and carbamide concentration,temperature ofpolymerization,pH of the system, monomers,emulsifier and intrinsic viscosity numberof HPAM on stability of HPAM-PEG aqueous emulsion system and monomeruntransformed ratio was studied.
    本论文考察了引发剂浓度、初始单体浓度、乙二胺四乙酸(EDTA)浓度、甲酸钠浓度、尿素浓度、聚合反应温度、体系 pH 值、共聚单体与分散介质摩尔配比、共聚单体摩尔配比以及乳化剂浓度等因素对聚丙烯酰胺(HPAM)特性黏数、HPAM-PEG-水乳液体系稳定性以及单体残留量的影响。
    The results showed that the optimized synthesis conditions were as follows: 9wt% emulsifying agents, the reaction temperature of 80℃~90℃, the dripping time of the preparative emulsion of 2~4h, m(CTAB):m(AEO)=1/3~2, V(D_4): V(KBM-602)=10~12 and 15min of the cut time.
    乳化剂m(CTAB):m(AEO)在1/3~2之间; 单体V(D_4):V(KBM-602)在10~12之间;
    Influence of concentrations of initiator, emulsifier, polymerization temperature and feeding monomer composition on the kinetics of MMA/EA emulsion copolymerization, were investigated. The initial polymerization rate (Rp) was proportional to the 0.78 power of the concentration of initiator (KPS). Rp increased as the concentration of emulsifier (OP) increased.
    采用乳液聚合制备MMA/EA共聚物,研究了聚合温度、引发剂浓度、乳化剂浓度以及单体投料组成对MMA/EA乳液聚合动力学的影响,发现聚合速率与引发剂过硫酸钾浓度0.78次方成正比,乳胶粒子数随引发剂浓度增加而增加,乳胶粒内的平均自由基数大于理论值0.5;
    Through the inspection of cigarette mouth building adhesive's solid content and viscosity, confirming that the best response condition of emulsion polymerization step is: activator (0.3%), reaction temperature (85°C), acrylic acid (5%), emulsifier (5%).
    通过对卷烟用搭口胶的固含量和粘度等指标考察,确定乳液聚合步骤的最好的反应条件是:引发剂用量0.3%、反应温度85℃、丙烯酸的用量5%、乳化剂的用量5%。
    Compared to the traditional butadiene-acrylonitrile emulsion polymerization, the conversion of copolymer was increased enormously and arrived at 70% in this system which polymerization temperature is 30℃, polymerization time is 4 hours, the ultrasonic time is 90 minutes, and with 3.5 shares emulsifier.
    研究表明:在30℃时,超声波乳化90min,歧化松香酸皂和油酸皂的复合型乳化剂3.5份,聚合时间4h,共聚物的转化率已达到70%以上;
    Polyacrylate latex was synthesized by two-stage monomer dropping method in emulsion system, and then the micro-latex with 32% polymer, 1.2% emulsifier, 220cP viscosity and small particle size (63nm) was prepared under shearing in the presence of ammonia.
    先采用单体两段滴加法乳液聚合得到常规胶乳,再对所得胶乳进行氨化剪切,制备了聚合物含量约32%、乳化剂量约1.2%、粘度约220cP、数均粒径63nm的丙烯酸酯超微胶乳。
    Using dimethyldiallylammonium chloride (DMDAAC) and acrylamide (AM) as starting materials, Span80-Tween80 composite emulsif ier and K_2S_2O_8-NaHSO_3 redox initiator, the polyDMDAAC-AM(PDA) latex was prepared by inverse emulsion polymerization.
    本文以二甲基二烯丙基氯化铵(DMDAAC)和丙烯酰胺(AM)为原料、Span80—Tween80为复配乳化剂、K_2S_2O_8-NaHSO_3氧化还原引发剂,用反相乳液聚合法制备了聚二甲基二烯丙基氯化铵—丙烯酰胺(PDA)胶乳。
    1. Synthesis of monodisperse polystyrene (PS) beads and assembly of colloidal crystal. PS beads with diameter of 260, 277, 583 and 640 nm were prepared using an emulsifier-free emulsion polymerization technique.
    1、应用无乳化剂乳液合成方法,合成了粒径为260、277、583和640nm的单分散聚苯乙烯(PS)胶球,SEM观察表明,胶球粒径分布窄,单分散性相当好。
 

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