高压蒸汽发生系统的化学清洗

叙述了洞庭氮肥厂合成氨装置高压蒸汽发生系统以碱洗、酸洗、钝化为主要环节的首次化学清洗工艺，阐述了清洗机理，总结了清洗处理要点。     

硅整流元件纯水冷却系统换热设备的化学清洗

介绍了硅整流元件的纯水冷却系统换热设备化学清洗中药剂的评定筛选原则。质量标准，清洗工艺等。并对其清洗效果加以评定。     

Study of siloxane additives migration to the surface of polyester-(melamine)-polyurethane coatings: Aging effects after ethanol cleaning

This study determines the influences of siloxane flow agents’ migration on the outermost surface composition of clearcoats, before and after ethanol cleaning. This evaluation is undertaken to improve adhesion of pressure-sensitive adhesives (PSAs) on automotive paint systems. Most of the siloxane flow agents segregate from the bulk to the clearcoat outermost surface during curing. These additives can cover until 50% of the surface area but X-ray photoelectron spectroscopy (XPS) and time of flight-secondary ion mass spectrometry (ToF-SIMS) analyses indicate that they can be removed by ethanol cleaning. Composition of the cleaned clearcoats surfaces are similar as the composition of clearcoat formulated without siloxane additives: the polyester-(melamine)-polyurethane network is more detected than before cleaning. However, outermost surface analyses show that several aging weeks increase the siloxane additives segregation. This post-cleaning migration modifies the clearcoat surface composition and cancels the chemical modifications due to the ethanol cleaning. XPS analyses show that silicon concentrations after cleaning and aging are inversely proportional to the initial silicon concentrations measured after curing. It highlights that aging has to be controlled to improve adhesion of PSAs on clearcoats. A second ethanol cleaning on aged clearcoats is not effective to remove these new siloxane additives. Their formulation should be different from the flow agents and it could modify their solubility in ethanol. This result could also indicate that these new siloxane additives are not located on the last molecular layer of surface and they would not be soluble in ethanol.     

两种异噻唑防腐剂抑菌效果的研究

研究了两种异噻唑衍生物防腐剂的防腐最佳pH值，以及防腐剂对微生物的最低抑制浓度（MIC），确定了在洗洁精中，单一防腐剂的最低用量，对两种防腐剂在洗洁精中的混合使用亦进行了研究。     

对中国入世后洗涤剂工业形势及相关问题的分析 --国内外业界高层人士访谈

中国加入WTO后，中国洗涤用品行业面临着新的机遇与挑战，中国洗涤用品市场将面临更加激烈的竞争。由于环保的呼声越来越高，中国已开始在部分地区禁磷。中国洗涤用品工业将如何发展，其前景如何，专家的看法又如何，就这些问题本刊专访了有关人士。     

新建电泳涂装线投产前的准备工作

介绍了新建阴极电泳涂装线在投产前必须要做的一些准备工作。     

超声CO激光的现状和展望(续)

介绍了200kWCW超声电子束连续CO激光器（SSCO－EIL）开环实物模型的能量和光谱特征的实验研究结果，以及增加SSCO－EIL的输出功率，谱线选择性，Q－开关激光作用的数字计算结果，同时讨论了SSCO－EIL的特性对几种激光技术效率的影响，由于激光能量利用率的增加和能量成本的降低，SSCO－EIL拥有的无与伦比的能量和特有的特征，将大大拓宽激光技术的应用领域。     

热媒炉热效率分析与提高

分析了影响热媒炉热效率的主要因素 ,介绍了通过对热媒炉盘管干冰除灰和改进风油比控制方式来提高热效率的方法 ,指出提高热媒炉热效率的主要途径是 :降低排烟温度和空气过剩系数。     

采暖系统的化学清洗

叙述了采暖系统中污垢沉积的原因以及这些污垢的危害性说明通过化学清洗的方法可以有效地去除这些污垢，同时还给出了化学清洗过程中需要注意的几个要点     

无线通信基站建设中电磁辐射缓解技术应用实践

无线通信基站电磁辐射缓解技术包括增加发射天线架设高度、增加天线增益、降低发射器功率、减小VRP下倾角度和改变垂直辐射图VRP等。结合案例分析了无线通信基站建设过程中电磁辐射缓解技术的应用实践。