Nothing!
PUR is an alternative name for TPU, PUR-PolyURetane, while TPU-Thermoplastic PolyUrethane.
Same sh*t different smell. :)
Chat with our AI personalities
PU (Polyurethane) is a type of synthetic material commonly used in making shoes, as it offers durability and water resistance. TPU (Thermoplastic Polyurethane) is a type of material that combines the flexibility of rubber with the durability of plastic, commonly used in phone cases, athletic shoes, and medical devices. TPU is known to be more flexible and abrasion-resistant compared to PU.
Pu-239 has a half-life of about 24,100 years.
The main difference between the 3rd and 5th harmonics is their frequency relationship to the fundamental frequency. The 3rd harmonic is three times the frequency of the fundamental, while the 5th harmonic is five times the frequency of the fundamental. This results in different sound characteristics and timbres when these harmonics are present in a sound wave.
PU can stand for various things depending on the context. Some common meanings are Polyurethane, Pressurized Water Reactor Unit, and Pick Up.
U-238 undergoes neutron capture to form U-239 which decays to Np-239 and further to Pu-239. Pu-239 then undergoes beta decay to form Pu-241. The balanced nuclear equation is: U-238 + n --> U-239 --> Np-239 --> Pu-239 --> Pu-241.
No, nuclear reactors using Pu-239 are not considered a renewable source of energy. Although Pu-239 is a fuel source that can be used to generate electricity for an extended period, it is not naturally replenished in a human timescale.