This is the raman spectrum of the black cap:
I was expecting it to be Polypropylene but the peaks didn't match in wave numbers. Anyone got idea what kind of plastic has that peaks on the side of 1500?
When I tried the raman analyzer on the clear housing.
I got this raman spectrum.
Which matches that of Acrylonitrile butadiene styrene see:https://en.wikipedia.org/wiki/Acrylonitrile_butadiene_styrene
I was trying to identify the material of this sediment filter cap whether it is really Polypropylene but i couldnt get a good signal but only noises no matter the exposure and time (my raman spectrometer is 532nm.
I was able to get good raman signal of the blue casing though but not the black cap.