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pu德國巴斯夫1190a 

Elastollan® is essentially formed from the inter-reaction of three components: 1. polyols (long-chain diols) 2. diisocyanates 3. short-chain diols The polyols and the short-chain diols react with the diisocyanates through polyaddition to form linear polyurethane. Flexible segments are created by the reaction of the polyol with the diisocyanate. The combination of diisocyanate with short-chain diol produces the rigid component (rigid segment). Fig. 1 shows in diagrammatic form the chain structure of thermoplastic polyurethane. The properties of Elastollan® grades depend on the nature of the raw materials, the reaction conditions, and the ratio of the starting materials. The polyols used have a significant influence on certain properties of the thermoplastic polyurethane. Either polyester-based polyols or polyetherbased polyols are used in the production of Elastollan®. The products are distinguished by the following characteristic features: Using polyester polyols: ? highest mechanical properties ? highest heat resistance ? highest resistance to mineral oils Using polyether polyols: ? highest hydrolysis resistance ? best low-temperature flexibility ? resistance to microbiological degradation In addition to the basic components described above, many Elastollan® formulations contain additives to facilitate production and processability. Further additives can also be included to modify specific properties. Such additives include mold release agents, flame retardants, UV-stabilizers and plasticizers as well as glass fibers to increase rigidity.

巴斯夫熱塑性聚氨酯（TPU）的品牌名稱。在過去的幾十年中，的Elastollan的許多好處一切形式-芳香或脂肪，非常柔軟或玻璃纖維增強，阻燃或高度透明的-有各個行業(yè)的各個領域得到明確證實。

Elastollan的主要優(yōu)勢®
高耐磨性
高拉伸強度和優(yōu)異的抗撕裂性
高耐油，油脂，氧氣和臭氧
極好的低溫柔韌性
很好的阻尼能力