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[Chemical Knowledge]：What are the role and uses of toluene diisocyanate?

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toluene diisocyanate is colorless or light yellow transparent liquid with pungent smell, which will slowly turn yellow under ultraviolet light. It can react with hydroxyl, water, amine and other compounds containing active hydrogen. It can also self-polymerate under certain conditions to generate urethane, urea, biuret, isocyanurate, etc. It is an important polyurethane raw material.

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The four functions and uses

of toluene diisocyanate 1. Used as raw materials for various polyurethane materials such as soft foam, coatings, casting elastomers, paving materials, waterproof coatings and adhesives.

2. Used to modify TDI, dimer, trimer, adduct prepolymer, etc.

3. Used as raw materials for polyurethane flexible foam, coating, rubber, fiber and adhesive

4. It is polyurethane synthetic leather slurry, polyurethane sole stock solution, spandex, TPU, insulating paint, etc

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