Torlon® PAI, from resin to compound.
Base resins and molding compounds are made at Greenville. This page follows where the chemistry of each is set and what a Raman spectrum reads along the way.
Base resins and compounds made at Greenville.
The polymer every Torlon® compound is built on.
Unfilled, wear, glass-fiber and carbon-fiber grades, molded and then post-cured to full properties.
The chain is set in the reaction, the rest follows from it.
Reaction
Monomer charge and reaction time build the chain, and the end of the reaction decides how the batch behaves in the steps after it.
After the reaction
Solvent left in the polymer and the identity of each powder lot decide what goes on to compounding.
Polymer and solvent each leave their own signature.
Backbone and reacting groups
The aromatic backbone and the reacting groups carry their own Raman bands. The study selects bands that stay clear of the solvent, using the 300–3500 cm⁻¹ configuration.
Solvent in a liquid stream
Organic solvents are strong Raman scatterers, so their content in a liquid stream reads directly; the study correlates it with residual solvent in the dried powder.
One model per value
Spectrally OS runs one calibrated model per parameter, a hybrid of neural networks and classical chemometrics trained on your process and checked against your lab.
The same decisions, taken on a reading from the process.
Hope you find it interesting. Please contact us and talk about our analysis in detail.
a.lukasiewicz@gekkophotonics.com+1 804 593 0282