willferral Posted March 6, 2024 Posted March 6, 2024 I'm trying to buy some polycarbodiimide to use as a crosslinker as an alternative to polyaziridine. From what I've read they both work in a similar fashion. My problem is I can only find it as a waterbased crosslinker with about 60% of it being water. I want to use it with a solvent which wont mix with water.. Would it be possible to remove the water from it? I was thinking of heating it up and adding a solvent that wont evaporate at waters boiling point like xylene.. or maybe mixing it with Isopropanol and freezing it and then removing the frozen part? I'm not a chemist and I don't know the freezing or boiling point of Polycarbodiimide... Assuming it has a high boiling point or low freezing point and that I could do this, would this damage or change the polycarobdiimide? My other question is Is Polyaziridine still toxic after it has reacted with a resin and cured? As I can find that mixed with a solvent ready to go. Thanks for any help.
willferral Posted March 9, 2024 Author Posted March 9, 2024 After looking into this it looks like this chemical is sensitive to temperature and moisture.
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