陶瓷绝热防腐涂层隔热效果好

通过理论公式推导和试验测量,得出陶瓷绝热防腐涂层的隔热效果与环境温差成正比,但同等环境温差下涂层在更高的温度工作时,由于涂层的导热系数的增大,其应用的厚度范围内也接近线性关系。涂层隔热效果随导热系数的减小而增大,并且在低导热系数区,陶瓷涂层隔热效果对导热系数的变化更敏感。随着涂层的厚度增大,导热系数的改变所具有的增加隔热效果的作用越大;但涂层越厚,单位厚度涂层导热系数改变所取得的隔热效果越低。     

Corrosion Inhibition Mechanism with Spilt Cell Technique of Rare Earth Metal on LC4 Al Alloy

A new method of studying the corrosion inhibition mechanism of rare earth metal(REM) on LC4 Al alloy with the spilt cell technique was studied. The principle and experimental method of the spilt cell technique were analyzed. By measuring the change of net-electric current between the two electrodes caused by the change of the amount of oxygen in the solution and the addition of CeCl₃, the influence of corrosive performance of CeCl₃ on LC4 super-power aluminum alloy in the 0.1 mol·L⁻¹ NaCl solution was investigated. Meanwhile, the conditional changes of pH values, CeCl₃ solution, additire and time of performance were also studied. Finally, the features of electrode surface were revealed by using SEM and X-ray energy-dispersive spectrometry (EDS). By combining these with other electric chemical techniques, such as potential-time curve, polarization curve et al.     

几项涂层性能测试方法简介

介绍了涂层盐雾试验、耐候性能试验、雾影、附着力等性能测试的方法和设备，探讨了其性能检测技术中的影响因素。     

信息荟萃

拜耳材料科技提出汽车聚合物涂层解决方案；拜耳材料为北京“鸟巢”体育场提供完美防护；罗门哈斯广东三水生产基地投产；德国迪高公司推出新型涂料油墨消泡剂；奔驰汽车将采用Standox UV汽车修补漆。     

聚苯硫醚复合涂层的耐磨性能

研究了用固体润滑石墨、碳化硅、二硫化钼等填料改性的聚苯硫醚 (PPS)涂层的耐磨性能。实验结果表明 ,聚苯硫醚复合涂层具有优良的耐磨性 ;加入适量 ( 3 0 % )的石墨、碳化硅等固体润滑剂 (石墨 :碳化硅 =2∶3 ) ,可以有效提高涂层的耐磨性能 ,而二硫化钼和三氧化二铬的减摩效果更佳     

2个含苯甲酰胺基偶氮苯类化合物的合成及光致变色

通过相转移催化剂PEG-400高产率合成了2个含苯甲酰胺基偶氮苯类化合物，通过核磁共振氢谱，红外光谱元素分析表征了其结构；经365nm的紫外光照射该化合物的DMSO溶液后测其紫外可见吸收光谱，表明化合物具有良好的光致变色性。     

哈尔滨“草砖房”获世界人居奖

经联合国人居组织、联合国大学和英国建造与社会住房基金会共同评定．哈尔滨市发改委的“高效节能草砖房技术转移”项目近日荣获2005年世界人居奖。