DLPNIRSCANEVM: Custom DLP NIRscan IR source

Hi Darius,

Thank you for your question and interest in DLP products. Unfortunately, we do not have devices which support the wavelengths you are looking at. Our DLP2010NIR and DLP4500NIR devices both support up to 2500nm.

There are several design considerations beyond the DMD as well - the optics and detector also need to be specifically designed for such long wavelengths.

If the chemistry of epoxy curing produces an NIR signature which could be detected at less than 2500nm by using machine learning algorithms or other analytics, this may still be an option for you. The scans may not return a sharp peak, but you may be able to build a model for the changing epoxy signature as a function of cure time.

Sincerely,
Paul

RSC_epoxy.pdfHi Darius,

There's a paper on the Royal Society of Chemistry website called 'Impact of precursor size on the chain structure and mechanical properties of solvent-swollen epoxy gels' () that has the attached supplementary data. For this particular type of eopxy, there appears to be useful information that you could get at 1500nm (6670cm-1) and 1667nm (600cm-1) using the NIR Nano. I don't know if this matches your particular epoxy, but our experience is that there are usually secondary vibrations in the sub-1,900nm range that can be picked up with the Nano, given suitable sample presentation and  appropriate data handling techniques.

kind regards

George

Thanks, Paul and George. This indeed has to be my field of expertise, but my background is in electronics, not in the chemistry. I will have my consultations with the people around and also reed the references George provided. Then will come back if some engineering questions remain.

With the best regards

Darius