The identification of true and false UHMWPE three

Three, impact identification (hammer)

TThe method is to use a hammer or other heavy weight to knock on the raised sample to distinguish between the real and the fake uHMWPE liners. The impact resistance of uHMWPE is very superior, up to 140 (KJ/ m2), even at -260℃ still has a strong impact strength, is the best of the existing plastics, and other non-uHMWPE no matter what kind of plastic is used can not compete with it. As shown in the figure:

Another point is the ultra high tensile yield strength is high, generally can be 180 ° bend to 90 °, won't produce fracture, and some of the super products hard and brittle, if bending is easy to produce fracture, and add some other materials will be reduced, its strength by ultra high with these two points, we also is not difficult to distinguish the two come, The properties of each plastic are as follows: