乳化炸药的乳化物理模型和理想乳化模态

文章以平推流模拟了乳化炸药乳胶质的形成过程,并建立了机械强制乳化的物理模型及理想模态。     

Influence of Two Salicylate Components on the Particle Size of an Oil-in-Water Emulsion with Nonionic Surfactants

This paper reports a study undertaken using techniques of static and dynamic light scattering to investigate the influence of sodium salicylate and methyl salicylate on droplet size of oil-in-water emulsions. The rates of changes were measured by determining the size and distribution of the oil droplet in the material. All emulsions showed a bimodal size distribution; the mean diameters and polydispersity were calculated from intensity. These data were analyzed with nonlinear regressions and bootstrap methodology. An amount of methyl salicylate component induced a decrease of mean diameter and standard deviation. On the contrary, sodium salicylate entailed the growth of all droplet populations and coalescence for the highest concentration.     

水溶性聚偶氮酯的研究

用Ｐｉｎｎｅｒ合成方法制备了用ＰＥＧ４００封端的水溶性聚偶氮酯，并表征了其结构；研究了热分解反应动力学及用于乳液聚合的动力学。结果表明，该种引发剂具有引发速度快、热分解机理简单和具有辅助乳化作用等优点。     

高分子量阴离子型聚丙烯酰胺的制备

介绍了聚丙烯酰胺的品种、性能及用途；研究了以丙烯酸为共聚单体，采用反相乳液聚合制备高分子量阴离子型聚丙烯酰胺胶乳的原理和方法；分析讨论了原料纯度、乳化剂和引发剂种类及操作条件等因素对产品性能的影响．     

皮革加油原理及注意事项

本文从乳液出发，阐述乳液形成，稳定，破乳以及皮革加油过程。要求使用最少的油剂达到最佳的目的。     

γ 射线引发 VAc 乳液聚合以制备白乳胶的动力学及工艺条件研究

研究了ＶＡｃ的辐射乳液聚合动力学，并对其聚合工艺条件作了初步探索。得出ＶＡｃ乳液在进行辐射聚合时，成核期结束较早（转化率在１０％以下），有相当长的恒速期存在。乳胶粒子直径在０．５～３μｍ之间，比一般的乳液聚合乳胶粒子要大。同时从动力学数据还可以看出几种成核机理（胶束成核，水相成核和液滴成核）同时存在，由此对试验条件提出了相应的要求。     

乳状液膜法制备草酸稀土

系统研究了在乳状液膜内水相直接制备草酸稀土的方法，讨论了内水相草酸浓度、表面活性剂浓度、载体浓度、外水相酸度和外水相稀土浓度对迁移率的影响，找到了制备草酸稀土的最佳条件，草酸稀土经灼烧所得的氧化物含ＲＥ２Ｏ３〉９９．５％，与萃取法相比，此方法具有成本低、能耗少、污染程度低的特点，具有工业化前景。     

乳化液泵站变频调速系统的设计

针对传统的乳化液泵站调速系统存在机械损耗比较大的问题,提出了一种乳化液泵站变频调速系统的设计方案;给出了该系统的硬件结构,详细介绍了该系统的工作模式及软件设计。实际应用表明,该系统运行稳定、机械损耗小。     

Properties of poly(n‐butyl methacrylate) prepared by reverse atom transfer radical polymerization in an aqueous dispersed system

Reverse atom transfer radical polymerization (ATRP) of n‐butyl methacrylate (BMA) in waterborne media using Cu(II) complexes with azo initiators (i.e., reverse ATRP) was conducted. The influence of several factors, such as surfactant, catalyst, and reaction time, on the stability of the emulsion, the particle size, the morphology of the emulsion particles, and the control of the polymerization was investigated. The results showed great differences between ATRP and conventional emulsion polymerization, especially the nucleation mechanism and the kinetics. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 1542–1547, 2003     

改性丙烯酸-环氧树脂纳米乳液的制备及应用

介绍了水性丙烯酸-环氧树脂纳米乳液的制备及其在油罐防腐工程中的应用。讨论了亲水侧链聚乙二醇相对分子质量大小对涂膜性能的影响以及乳化剂各组分的用量对乳液粒径的影响。