Isomeric composition of airborne TDI in the polyurethane foam industry.
Isomeric composition of airborne TDI in the polyurethane foam industry.
复制标题
聚氨酯泡沫工业中空气传播的 TDI 的异构体组成。
DOI：
10.1080/15298668491399640
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
Hammad,YY
中科院分区：
文献类型：
--
作者：
Rando,RJ;Abdel-Kader,HM;Hammad,YY
测定了两家板料柔性聚氨酯泡沫厂空气中甲苯二异氰酸酯的异构体组成。优化了用于样品分析的高效液相色谱技术，用于定量和定性测定2,4和2,6- tdi。数据表明，与该工艺中使用的起始材料相比，相对于2,4异构体，空气中2,6- tdi的量有很大的增加。增加的幅度取决于生产的阶段。这些结果与2,6- tdi由于其较低的反应活性而增加脱气的假设相一致。
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.