耗材介绍七
TPU
Thermoplastic polyurethane elastomer, also known as thermoplastic polyurethane rubber, referred
to as TPU, is a (AB) n-type block linear polymer, A is polyester or polyether with high molecular
weight (1000~6000), B is a linear polymer containing 2~12 A diol with chain carbon atoms, the
chemical structure between the AB segments is a diisocyanate. Thermoplastic polyurethane rubber is
cross-linked by intermolecular hydrogen bonds or lightly cross-linked between macromolecular
chains. As the temperature increases or decreases, these two cross-linked structures are reversible.
In the molten state or solution state, the intermolecular force weakens, and after cooling or solvent
volatilization, there is a strong intermolecular force connecting together, restoring the performance
of the original solid. Typical TPU such as spandex and so on. Thermoplastic polyurethane elastomer
(TPU) is a kind of elastomer that can be plasticized by heating and dissolved by solvent. It has
excellent comprehensive properties such as high strength, high toughness, wear resistance and oil
resistance. It has good processing performance and is widely used in national defense, medical,
Food and other industries.
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