Low-haze polycaprolactone TPU (thermoplastic polyurethane) film as well as preparation method and application thereof

The invention discloses a low-haze polycaprolactone TPU (thermoplastic polyurethane) film, which is prepared from the following components in parts by weight: 10 to 20 parts of polyether polyol, 22 to 36 parts of isocyanate, 10 to 15 parts of isothiocyanate, 8 to 16 parts of coupling agent modified silicon dioxide, 5 to 15 parts of ethylene glycol terephthalate hydroxyl terminated resin, 1 to 5 parts of catalyst and 1 to 5 parts of chain extender. According to the invention, under the action of the catalyst and the chain extender, the polyether polyol, isocyanate and isothiocyanate can maintain the impact resistance effect, only generates a small amount of stretch rate loss, and also has the characteristics of high modulus and high hardness; and the coupling agent modified silicon dioxide and the ethylene glycol terephthalate hydroxyl-terminated resin are used together, so that the obtained TPU film has higher haze and higher light transmittance on the premise of better mechanical properties. 本发明公开了一种低雾度聚乙内脂T