How to distinguish between PET and high-temperature low-temperature PET?
A: for reworked material, with the naked eye or some simple methods, points out?
B: if you have a melting point tester, believe you will be easily done. Tell you: by the way, the price of a melting point tester is about twenty thousand dollars, you can walk away like a briefcase. Do the PET bottle flakes without this stuff you're behind The Times.
After burning, wire drawing, spin silk to break, if broken wires can be rolled into several volumes, that melting point is normal, the more the higher. In this area because of lack of experience, I can't specific volumes is qualified, I don't have this ability, you test.
In the ignition, if melting fast, low melting point, and the burning bottle flakes special black, that is also a low melting point, the other is the sweet smells, may also be a low melting point. This is the doyen said.
1, first smell, the taste of PET different plastic commonly use lighter to burn, then smell very sweet and comfortable (literally burn a bottle to smell), if the PET to contain other ingredients, the taste is very pungent. There is a bottle containing the composition of SEBS cannot use.
2, see burning section, if too much black or oil droplets soon, most of the melting point is not normal, the PET film in common.
3, drawing, burning on the lighter when a pull wire, wire pull long is not long, and then pull out the wire break, look at the middle of the breakpoints, silk is rolled into the small circle, the more volume of high melting point. But generally if it is a bottle of tablets, should not have much of a problem of the key point is to distinguish whether contain PVC, it's a PET's Achilles' heel.
Other: when burning, wire drawing, spin silk to break, after if broken wires can roll into several volumes, that melting point is normal, the more the higher. This aspect I can't because of lack of experience, a few specific volume is qualified in the ignition, if melting fast, low melting point, and the burning of the bottle
Special black, that is also a low melting point, the other is the sweet smells, may also be a low melting point.
