Chemical compatibility

I'm an electrical engineer trying to understand a failure in a plastic part that I'm working with.

I am using a plastic called polysulfone- and the data sheet has a lot of words ending in "amine" that are listed as not-being compatible with said plastic.

I want to bond this plastic with an epoxy, but the very-vague datasheet states that the hardener contains 80% "Modified Cycloalipathic Amines".

With this admittedly limited information, should I look for a different adhesive?

The process temp is $5$ to $85~^\circ\mathrm{F}$ ($-15$ to $29~^\circ\mathrm{C}$).

• I have a bachelor's in chemistry, but I am not an expert in materials science. All I can tell you is that looking at the structure of a polysulfone polymer, going by textbook logic I would not expect much reactivity with typical amine compounds. Perhaps the amines listed in your MSDS have functional groups, other than the amino group, that would react with your polysulfone. From a glance at structures found by googling "modified cycloaliphatic amine", it looks like such compounds (representing the epoxy) will likely behave like typical amines (which may or may not react with your polysulfone). – electronpusher Mar 29 '17 at 16:50

I suggest taking the experimental route and exposing another test piece of the plastic you are working with to the hardener. Keep an eye out for any softening, swelling, change of color and any other indicators of a reaction occuring.