粒剂
- 与 粒剂 相关的网络例句 [注:此内容来源于网络,仅供参考]
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When the sodium lauryl sulfate and p-octyl polyethylene glycol phenyl ether is used and its level in 3% and 6: 4 ratio, the polymerization process has the lowest coagulum and the highest monomer conversion. Higher reaction temperature and more level hydroxyl value lead to more coagulum, the latter also lead to larger particle size. The acid value has larger influence on viscosity and coagulum, there exist a best range. The emulsion particle size is larger for its hydrophilicity, most of its particles are connected together.
在含较高亲水单体的乳液聚合体系中,难以制得稳定的预乳化液,不能采用工业生产中常用的预乳化工艺,而只能采用混合单体直接滴加的方法;由于单体混合物的亲水亲油值较高,用阴离子型乳化剂十二烷基硫酸钠和非离子型乳化剂聚乙二醇辛基苯基醚混合,用量为单体总量的3%,且比例在6:4时,乳液聚合时具有最低的凝聚物含量和最高的单体转化率;乳液聚合反应温度升高,可以提高单体转化率,增加反应速度,但凝聚率相应提高;随着羟基单体含量的增加,聚合过程中凝聚率增加,聚合物乳胶粒平均直径增加;羧基单体有一个最佳的用量(2.6%),过高或过低凝聚率均提高;羧基含量对乳液的粘度有较大的影响,当羧基含量较低时,羧基含量增加,乳液粘度增加明显;含羟基乳液粒子由于含亲水基团较多,使得乳胶粒径增大,乳胶粒子大多数互相凝聚在一起,处于凝聚态。
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The effects of the dosages of initiators, emulsifier, organicsilicon and 2-Hyciroxypropyl acrylate on conversion and graft efficiency were studied. Moreover, the particle morphology, particle size distribution and glass transition temperature of latex were characterized by Transmission Electron Microscopy, size distribution analyzer and Differential Scanning Calorimetry.
考察了引发剂用量、乳化剂用量、有机硅用量、丙烯酸羟丙酯用量对硅-丙核/壳乳液转化率、接枝率的影响,并借助透射电镜、粒度分布仪和差示扫描量热仪分别对乳胶粒形貌、粒径分布及其玻璃化转变温度进行了表征。
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The effects of material granularities on infrared radiancy and the whys are probed with the help of FTIR instrument through static and dynamic testings.
通过优选材料,借助傅立叶变换红外光谱仪对不同粒径的材料及其组成的发烟剂进行静态和动态测试,对发烟剂材料粒径影响红外辐射的规律及成因进行了研究。
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Methods AH dry powder inhalation was prepared by spray-drying method. Following spray-drying, resultant powders were characterized using scanning electron microscopy and laser diffraction, and the aerosolisation performance was determined using twin-stage liquid impinger. The process conditions were optimized with orthogonal design combined with multi-index test. The powder yield, aerodynamic diameter, angle of repose and respirable fraction were used as indices for orthogonal design.
采用喷雾干燥法制备盐酸氨溴索干粉吸入剂,采用双层液体碰撞器测定盐酸氨溴索干粉吸入剂体外沉积率,扫描电镜观察粉粒的形态,激光粒度测定仪测定粒径大小,以产品收率、粉末的空气动力学径、休止角及体外沉积率为考察指标,通过正交设计结合多指标综合评价法优化最佳制备工艺。
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The results showed the masterbatch prepared from EVOH/compatibilizer,HDPE and EVOH/compatibilizer(4:1)was used as barrier masterbatch,the prepared material had an obvious and homogeneous toothlike structure,having good barrier property.
结果表明采用EVOH/相容剂和HDPE、EVOH制备的母粒能明显改变材料的流变性能,当采用EVOH/增容剂为4/1的阻隔母粒,所得材料的结构为大而均匀的片状形态,具有优异的阻隔性。
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The effect of dosage of creaming reagent on creaming time, latex solid content and average particle size was studied, and it was found that the composite latex particle size was too large, and the concentration period was too long, about 15 days.
以海藻酸钠为膏化剂对复合胶乳进行了膏化浓缩,研究了膏化剂用量对膏化时间、胶乳固含量和胶乳粒径的影响,结果表明膏化浓缩胶乳粒径较大,膏化周期较长,一般需半个月左右才能得到实用的浓缩胶乳。
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With increasing the concentration of the mixture of antimony oxide from 10 % to 20 %, the reaction time decreases from 90 min to about 30 min, but the optimized range of molar ratio of H3PO4 to antimony increases. The reaction temperature is not the main factor on particle size with the existence of H3PO4, the average particle size is c.a. 160nm without obviously variety in the temperature range from 60 °C to 90°C.
氧化锑混合物浓度从10%增加到20%时,反应达到平衡的时间从90min下降到30min左右,形成小粒径胶粒所需磷酸与锑摩尔比的最佳范围也随之上升;在稳定剂磷酸存在的条件下,温度不再是对胶体粒子粒径的主要影响因素,在60~90℃之间,形成的胶体五氧化二锑的粒径无明显变化,在160nm左右。
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The influence of light stabilizing agents, antioxidant agents, colour masterbatch and filler of CaCO 3 on ageing behavior of speciality was studied by artificial accelerated ageing tests of carbon arc lamp and fluorescent UV-B type light.
选择国产基础树脂与稳定剂,采用碳弧灯和B型荧光紫外灯人工加速老化试验,研究了光稳定剂品种、用量、与抗氧剂的复配及色母粒、重钙母粒对专用料老化性能的影响。
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The results show that increasing gelatin concentration, enhancing emulsion and using mixed emulsifier can decrease the gelatin submicron particle diameter using glutaraldehyde as cross-linking agent.
结果表明,采用戊二醛为固化剂、增加明胶的浓度、提高乳化搅拌速度、使用混合性的乳化剂都有利于降低明胶粒子的粒径此外,对制备工艺进行了优化,并在7000r/min左右高速搅拌的条件下,得到了成球性较好的粒径约为450 nm的明胶亚微米粒子。
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Optimal mixing ratio of SRA as delay forming agent in cement treated base is 0.05%-0.06%; the influence of compacting delay on strength and dry density of road base may be reduced by SRA additive, forming time may be delayed to 9h; after the forming time is delayed to 4h, 6h and 9h, the strength and dry density shrinkage of cement-treated base with SRA admixture are much less than that of those without SRA.
SRA用作水泥稳定粒料路面基层的延迟成型剂的最佳掺量在0.05%~0.06%:用SRA可降低因延迟压实对水泥稳定粒料基层的强度和干密度的影响,可把延迟成型时间延长到9h;在成型延迟4h,6h,9h后,掺入SRA的水泥稳定粒料的强度和干容度损失明显小于未掺外加剂的混合料在相同延迟成型务件下的强度损失。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力