袋子知识

TPU (Thermoplastic Polyurethanes) is a thermoplastic polyurethane elastomer rubber, which is a polymer material formed by the reaction and polymerization of diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI), as well as large molecular polyols and low molecular polyols (chain extenders). The molecular structure of TPU is composed of alternating rigid and flexible segments.

TPU has excellent characteristics of high tension, high tensile strength, toughness, and aging resistance, making it a mature environmentally friendly material. It has a wide range of hardness (60HA-85HD), is wear-resistant, oil resistant, transparent, and has good elasticity. It is widely used in daily necessities, sports goods, toys, decorative materials, and other fields.

In addition, TPU also has excellent wear resistance, high strength and high yield point, good oil and solvent resistance, good elasticity and resilience, and low temperature resistance. At the same time, TPU materials also have advantages such as good plasticity, rich colors, and easy processing. They can be processed for dyeing, embossing, and shaping according to different needs.

Due to its excellent physical properties and chemical stability, TPU materials have important application value in various fields such as manufacturing, automotive industry, sports equipment, leather products, medical devices, electronic products, etc.