粒剂

Transmission Electron Microscope and other properties testing results show that the complex emulsifier system is the crucial influence factor of the polymerization process and the properties of products. It may influence the coagulum content and reaction rate of the polymerization process, the performance, particle diameter,viscosity, electrolyte stability and storage stability of the emulsion products and the contact angle of the film.The initiator mainly influences the coagulum content and reaction rate.The acrylic monomers mainly influence the solid content, Minimum Film Formation Temperature of the emulsion and the Glass Transition Temperature of the film.The organic silicone monomer mainly influences the water absorption of the film.The reaction temperature mainly influences the reaction rate and conversion.The stirring intensity mainly influences the coagulum content of the polymerization process.

透射电镜等性能测试结果显示：复合乳化剂体系是硅丙共聚乳液的聚合过程及产品性能的主要影响因素，它可以对聚合过程的凝胶率、反应速率以及乳液的外观、粒径、粘度、耐电解质稳定性及贮存稳定性，还有乳液涂膜的接触角等造成不同程度的影响；引发剂主要影响反应速率和凝胶率；丙烯酸酯单体主要影响到乳液的固含量、最低成膜温度以及涂膜的玻璃化转变温度，有机硅单体主要影响涂膜的吸水率等；聚合反应温度主要影响乳液的反应速率和转化率等；搅拌强度主要是影响到聚合过程的凝胶率。

Inspirable large hollow nanoparticulate aggregates can be prepared by spray drying method and Peclet number was introduced to explain the formation mechanism.

由于纳米粒在肿瘤靶向性方面的优势和大粒径中空粒子优良的沉积性能，大粒径中空纳米聚集体在干粉吸入剂上具有独特的优势。

Using manganous sulfate(MnSO4) as raw material,ammonium hydrogen carbonate(NH4HCO3) as precipitating agent and sodium dodecyl sulfate as particle size controller and through the process of quick addition of MnSO4 and NH4HCO3 solutions at same time,monodisperse submicron manganous carbonate(MnCO3) spherical particles were prepared by controlling suitable reaction crystallization conditions.

以硫酸锰为锰源，碳酸氢铵为沉淀剂，十二烷基硫酸钠为粒径控制剂，采用硫酸锰和碳酸氢铵两种溶液快速同时加入的方式，通过控制合适的反应结晶条件，制备出亚微米级单分散球形碳酸锰颗粒。借助扫描电镜、X射线衍射、粒度分析仪等研究了反应结晶条件对碳酸锰粒径和形貌的影响。

The stability of GA-PBCA-NP was also studied.ResultsDue to the agglomerationg of nanoparticles with no stabilizer,it was difficult to preparate.GA-PBCA-NP produced by the two methods both had spheric and smooth outer appearance,uniform distribution,nonadherence and stability.The diameter,ebeding ratio and drug loading in GA-PBCA-NP produced by emulsification polymerization and interfacial polymerization methods were 90～600 nm and 200 nm,60.49% and 73.87%,18.15% and 22.23%,respectively.

结果未添加稳定剂的纳米球表面粘连团聚现象严重，难以成球；乳化聚合法制备的GA-PBCA-NP在透射电镜下观察表面圆整光滑，粒子之间不团聚，不黏连，粒径范围在90～600 nm，包封率为60.49%，载药量为18.15%；界面缩聚法制得的纳米粒表面圆整光滑，粒子之间不团聚，不黏连，粒径大小均匀，都在200 nm左右，包封率为73.87%，载药量为22.23%，两种方法制备的稳定性都较好。

GA-PBCA-NP produced by the two methods both had spheric and smooth outer appearance,uniform distribution,nonadherence and stability.The diameter,ebeding ratio and drug loading in GA-PBCA-NP produced by emulsification polymerization and interfacial polymerization methods were 90～600 nm and 200 nm,60.49% and 73.87%,18.15% and 22.23%,respectively.ConclusionIt is important to add dextran 70 in preparation.

结果未添加稳定剂的纳米球表面粘连团聚现象严重，难以成球；乳化聚合法制备的GA-PBCA-NP在透射电镜下观察表面圆整光滑，粒子之间不团聚，不黏连，粒径范围在90～600 nm，包封率为60.49%，载药量为18.15%；界面缩聚法制得的纳米粒表面圆整光滑，粒子之间不团聚，不黏连，粒径大小均匀，都在200 nm左右，包封率为73.87%，载药量为22.23%，两种方法制备的稳定性都较好。

The mechanical properties of coal filled polymer composites The mechanical properties of coal/PP composites were investigated, and the effects of coal rank, particle size, surface modification of coupling and alkylation were discussed. The results show that the anthracite and bituminous coal all can be used as filler of plastic after pretreatment of part devolatilization and surface modification; The modulus of composites increase with the content of coal filler; The coupling agent is of no effect for reinforcing the coal/PP composites, except that there are new oxygenous function group forming on the surface in the process of pulverizing; The F-C alkylation reinforce coal (under 10μm)/PP composites obviously.

4煤填充高分子复合材料力学性能超细煤粉填充聚丙烯复合材料力学性能的研究结果表明，烟煤和无烟煤经过脱除部分挥发分的预处理后，都可用于与塑料共混制备复合材料；偶联剂改性对低变质程度烟煤/聚丙烯复合材料的力学性能基本不起改善作用，而对于经气流超细粉碎后的小粒径高变质程度烟煤及无烟煤则有一定的增强作用；烷基化改性在煤表面接枝了烷基，使平均粒径小于10μm的煤/聚丙烯复合材料拉伸屈服强度普遍提高，煤填充高分子复合材料可在较高含煤量情况下维持良好的力学性能。

Then,the seed-emulsion was respectively copolymerized with many kinds of acrylates to form the excellent silicon-acralyte emulsions.

探讨了乳化剂加入量、种子乳液量、乙烯基硅含量(Vi-D4用量)、活性物含量等因素对硅-丙乳液转化率和接枝率以及乳胶粒形貌和乳液粒径分布的影响。

In other hand, according to the state that rice kernel smut disease harmed seed production of hybrid rice seriously, we developed a kind of highly effective composite chemical, designated as "Kanghei 95", which was very effective to controlling this disease.

另一方面，针对稻粒黑粉病严重危害杂交水稻种子生产的状况，用生物农药、化学农药和营养元素肥料研制出稻粒黑粉病综合防治剂&抗黑95&，它对该病害有极显著的防治效果。

For example, at the same content of nano-SiO〓, the average particle size of nano-SiO〓 treated with the silane coupling agent in ball mill was 97 nm, while the average particle size of nano-SiO〓 treated via ultrasonic dispersion reached 90nm.

在相同纳米SiO〓含量下，干法处理时，填料在基体中的平均粒径为97nm，一般湿法处理时，填料的分散粒径为90nm，硅烷偶联剂/分散剂复配处理所得填料在基体中分散效果最佳。

They can be moved with soil particles and used as tracers for erosion and/or accumulation of soil particles.

它们在表土的迁移过程中具微粒迁移性，能较好地随土粒般运，可作为土粒侵蚀或沉积的示踪剂。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

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。