Rando R J, Abdel-Kader H M, Hammad Y Y
Am Ind Hyg Assoc J. 1984 Mar;45(3):199-203. doi: 10.1080/15298668491399640.
The isomeric composition of airborne toluene diisocyanate has been determined in two plants producing slab stock flexible polyurethane foam. The high performance liquid chromatographic technique used for analysis of the collected samples was optimized for the quantitative and qualitative determination of 2,4 and 2,6-TDI. The data indicates that there is a very large increase in the amount of airborne 2,6-TDI relative to the 2,4 isomer, as compared to the starting material used in the process. The magnitude of the increase was dependent on the stage of production. These results are consistent with the hypothesis of increased offgassing of 2,6-TDI, due to its lower reactivity.
在两家生产软质块状聚氨酯泡沫塑料的工厂中，已测定了空气中甲苯二异氰酸酯的异构体组成。用于分析所采集样品的高效液相色谱技术针对2,4 - TDI和2,6 - TDI的定量及定性测定进行了优化。数据表明，与该工艺中使用的起始原料相比，空气中2,6 - TDI的含量相对于2,4异构体有非常大幅的增加。增加的幅度取决于生产阶段。这些结果与2,6 - TDI因反应活性较低而脱气增加的假设一致。
