The economic development in recent years has made polyurethane TPU an attractive new product in the field of spinning cots. At present, there are not only domestic enterprises specializing in R&D and production of polyurethane TPU, but also some enterprises that originally produced rubber rollers, which also take TPU polyurethane as a new project to carry out scientific research. Textile equipment companies all hope to seize the opportunity in new fields and lay a technological advantage for future development.

What are the advantages of TPE thermoplastic elastomers? Typically an elastic product with a lower modulus of elasticity, it can be repeatedly stretched to more than twice its original length at room temperature and has the ability to return to its original length almost completely after the stress is relieved. Early materials with this property were thermoset rubbers, but many families of injection moldable thermoplastic elastomers (TPEs) are replacing traditional rubbers.

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How to understand the "elasticity" and "plasticity" of thermoplastic elastomers? Thermoplastic elastomers are the third generation of rubber products after natural rubber and synthetic rubber. Its products not only have the traditional cross-linked chemical rubber with high elasticity, aging resistance, oil resistance and other properties, but also the plastic has plasticity and is easy to shape and process. Therefore, thermoplastic elastomer material has become a new material to replace traditional rubber.

TPU Chinese name is thermoplastic polyurethane elastomer, which is formed by the co-reaction and polymerization of diisocyanate molecules such as diphenylmethane diisocyanate (MDI) or toluene diisocyanate (TDI) and macromolecular polyols and low molecular polyols (chain extenders). of polymer compounds. TPU can be heated and plasticized, and has no or little cross-linking in its chemical structure. Its molecules are basically linear, but there are certain physical cross-linking, mainly divided into polyester type and polyether type. It is a new type of organic Polymer compound materials. It has a wide range of hardness (60HA-85HD), wear resistance, oil resistance, transparency, and good elasticity. It is a kind of excellent performance and can replace rubber and soft PVC materials. Its excellent physical properties, such as wear resistance and resilience, are better than ordinary polyurethane and PVC, and its aging resistance is better than rubber. It is a kind of polymer material between rubber and plastic. It is used in daily necessities, sporting goods, toys, decorative materials, etc. It can be said that it is the most ideal material to replace PVC and PU to meet the environmental protection requirements of more and more fields. Internationally known as a new type of environmentally friendly polymer material.

Thermoplastic polyurethane (TPU) is a type of polyurethane that can be heated, plasticized and solvent-dissolved. Compared with mixing type and casting type polyurethane, there is no or little chemical crosslinking on the chemical structure, and its molecules are basically linear, but there is a certain amount of physical exchange. Therefore, this type of polyurethane is called thermoplastic. Polyurethane.