电导法与重量分析法测定涂料保水性的比较和评价  

Determination of Water Retention of Coating Colors ——Conductivity Method vs Gravimetric Method

作　　者：凌永龙 谈耘 

机构地区：[1]上海星火制浆造纸厂,201419 [2]上海市造纸研究所,200052

出　　处：《中国造纸》1993年第2期9-14,共6页China Pulp & Paper

摘　　要：采用电导法和重量分析法测定涂料的保水性,其过程简单,操作方便。两种方法测定的数值比较表明:重量分析法测试结果具有良好的规律性和重现性,对保水性能变化的灵敏度高;电导法的测试结果规律性较差,并且易受涂料粘度变化的影响和干扰。Determination of water retention of coatiog colors by gravimetric and conductivity methods are described. Both of the pro-cedures are simple and easy to use. The difference of water retention value of coating colors determined by conductivity and gravimetric methods clearly shows: the gravimetric method has good logical order and reproducibility, and also is sensitive to small changes of the coating color formulations; on the other hand, the conductivity method has a poor logical order and its result is influenced by viscosity of coating color.This paper is contributed to better understanding of the water retention theory relating to the industrial coating process.

关 键 词：保水性 涂料 电导法 重量法 

分 类 号：TS727.3[轻工技术与工程—制浆造纸工程]