DON'T fall for FAKE! - Positive Material Identification of Plastics | Serious Engineering - Ep25

[@starrapid]

Don't fall for fake plastic materials. Instead look for a manufacturing supplier who follow these 3 techniques.

[@geoffcrumblin7505]

Uncommon sense, very relevant to the material substitution that abounds over there.

[@artej11]

1:29 isn't this the same boat which plugged suez canal?

[@MisterPornthep]

great video. i have 1 request: please make that spinny CAD thing in the background actually spin in 3D! (like, rendered out properly)

[@starrapid]

Noted. We will do it.

[@jimquinn]

Excellent, and I shall share with my students!

[@starrapid]

We are very glad. To educate young engineers is our purpose.

[@bobweiram6321]

You're the new Jardine Matheson of mainland China.

[@starrapid]

👌😂

[@WalkaboutRojo]

Ha! Love the Airplane reference.

[@starrapid]

😂

[@sudharsanansampath5398]

This is amazing :)

[@starrapid]

Thank you :)

[@MitchDavis2]

What do results look like when there are additives/fillers present? Does that make the material more difficult to identify?

[@starrapid]

There are two ways to identify materials using the FTIR. One is to calibrate from a golden sample, and then know how close the test material is to the golden sample. This is not identifying the chemistry, or the filler, or anything like that, it is just looking at the fingerprint and how similar it is to the golden sample. The Second Way is to use an internal or external database that covers all kinds of resins, fillers, pigments etc. You then ask the machine to work out a combination of all of these materials that would most replicate the fingerprint you are getting off the test-material. You can set the machine to look at 1 level, 2 levels, 3 levels and so on. The problem is that for every additional level, the time it takes to do the calculation is exponential. There are techniques for narrowing down the dataset, but even so, a 3 level analysis can take 4 or 5 hours. At the end of the process it will tell you: You have PP with Glass Fibres, and a carbon black pigment. It can also identify which brand of plasticiser you have. The Alpha is an amazing piece of technology. - Gordon.