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TPU Definition and Comparison to TPE

Thermoplastic Polyurethanes (TPUs) are a derivative of TPE. It is an established material that is relatively new to 3D printing. TPU is utilized in Fused Deposition Modeling (FDM) printers as a filament and Selective Laser Sintering (SLS) printers as a powder. There is a wide variety of colors, and the materials can customize hardness from soft to firm. Aerospace, automotive (i.e., instrument panels), the medical industry, industrial belts, and commercial products, including sporting goods and protective cases, utilize TPU.

The material characteristics of TPU include the following:

• Easy to print
• Good impact resistance
• Good chemical resistance
• High heat resistance
• High tear and abrasion resistance
• High elasticity
• UV resistance is less than desirable
• Low print temperatures produce poor layer adhesion
• High print temperatures incur stringing

The advantages of TPU compared to TPE include the following:

• In general, TPU has a smooth finish compared to the rubbery finish of TPE
• TPU performs better in cold temperatures and retains its elasticity better than TPE
• TPU has a higher degree of chemical resistance
• TPU maintains its dimensions better than TPE and is less prone to shrinkage
• TPU lasts longer due to its abrasion resistance

The disadvantages of TPU, when compared to TPE, are as follows:

• TPU absorbs moisture (hygroscopic)
• Due to its performance characteristics, post-processing can be problematic

Similar characteristics include:

• Impact resistance
• Heat resistance
• Waterproof
• Elasticity
• Excellent color selection
• Similar printing speeds

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Carboplast Bulgaria Ltd.
E-mail: [email protected];
[email protected]
Ul. Nikolay Haytov 2a
Sofia, Bulgaria

Источники:

https://proplast.ru/articles/termoelastoplastyi/&rut=1b917ac7fbc9df7b44ee913e9b40061d40b5a727c3f80c6062753941eca77e9e
https://all3dp.com/2/tpe-vs-tpu-flexible-filament-the-differences/&rut=215bd7e1c76a682d745adcb435b96fecadc9bf1586b8fe6ea3ee522f00592ad4
https://www.3ds.com/make/solutions/blog/tpe-vs-tpu-differences-and-comparison&rut=fb25fb2c0119753a36d9e0e63723c0de0dd4c55c7d268b34e5975b16c3325150
https://en.wikipedia.org/wiki/TPE&rut=098c181c66f2bd67b3794bb04dd242745b2619905ad52799d7ca3a4351bba94c
https://mmpolytrade.com/bg/products-13/thermoplastic-elastomers-54&rut=b35a06c9de71c53255d0e4523fad4af7173b8afe3c1646ae01c63f57acb212a2
https://www.xometry.com/resources/3d-printing/tpe-vs-tpu-3d-printing/&rut=9f2f0470201d38efc0746875e89a84f79dc963eab60288b14b7b392e35b7dd8a
https://ru.wikipedia.org/wiki/%D0%A2%D0%9F%D0%95&rut=2eb84bdb40a4ed8280589bf14d2ab6aba17a0e8ce2e0d88198bc28f377b01073
https://www.wavar.com/blog/is-tpe-better-than-nbr-material.html&rut=b1da66cb94d504d55c97afd03d98ced9df4e70bd8690ea68b47770d286152a69
http://carboplast.bg/&rut=6dbd39597e8c540e5ba04992bf17ad26b64863db2c572fb454e33f8d178888ba