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TDI (Toluene Diisocyanate)

TDI (Toluene Diisocyanate):

Toluene diisocyanate (TDI) has two isomers: 2,4-toluene diisocyanate and 2,6-toluene diisocyanate.
English abbreviations: TDI; 2,4-diisocyanate toluene ester; 2,4-diisocyanate toluene ester; toluene-2,4-diisocyanate; 2,4-diisocyanate-1-methyl benzene; toluene diisocyanate; toluene diisocyanate; toluene 2,4-diisocyanate; 2,4-diisocyanate; 2,4-diisocyanate toluene
Molecular formula: C9H6N2O2; CH3C6H3 (NCO) 2.


Industrial Uses of TDI:

Toluene diisocyanate is one of the commonly used polyisocyanates, and polyisocyanates are polyurethane (PU) materials and important basic raw materials. TDI commonly used in polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including three commonly used brands: TDI-80/20, TDI-100 and TDI-65/35. The preceding figures indicate the content of 2,4-TDI in the composition. For example, 80 in TDI-80/20 indicates that its composition is 80% 2,4-TDI and 20% 2,6-TDI; 100 in TDI-100 basically represents 2,4-TDI (about 98%) and 2,6-TDI has few isomers. It is mainly used for producing flexible polyurethane foam and polyurethane elastomers, coatings, adhesives and so on.


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