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吸碘量虽然不能简单地看作碳黑比表面积的度量,但是它主要与碳黑的比表面积有关,也与碳黑的不饱和度有关。是影响炭黑使用性能的一个重要的技术指标。目前国内执行的测定方法操作比较麻烦,测定结果的重现性很差。而现在正准备推广的国际标准方法(ISO—1304)仍有许多操作步骤不合理。本报告提出以减光片代替参比溶液的差示光度法,可进行常量和半微量碳
Although iodine absorption can not simply be seen as a measure of carbon black surface area, but it is mainly related to the specific surface area of carbon black, but also with the degree of unsaturation of carbon black. Is an important technical indicator that affects the performance of carbon black. At present, the determination of the implementation of the method of operation is too much trouble, the reproducibility of the measurement results are poor. The International Standard Methodology (ISO-1304) now being rolled out still has many steps unreasonable. The present report proposes a subtract photometer instead of the reference solution, which allows constant and semi-trace carbon