Low Temperature TPU Material

                                             Low Temperature TPU Material

The core of low-temperature TPU material lies in its ability to maintain flexibility and elasticity in extremely cold environments, making it less prone to brittleness and cracking. This characteristic makes it very useful in many special scenarios.

✨  Low temperature performance and selection considerations

To achieve excellent low-temperature resistance，It is crucial to choose the right type of TPU 

Preferred polyether TPU:   

This is the key to achieving ultra-low temperature resistance. The glass transition temperature (Tg) of polyether TPU can be very low, such as below -50 ℃, which means that it can still maintain softness and high elongation at break (up to 300% or more) at temperatures of -30 ℃ or even lower, and is not easily brittle.

Be cautious when choosing polyester TPU: 

Polyester TPU has relatively poor low temperature resistance, and its Tg is usually around -20 ℃, so special attention should be paid when using it in cold regions.

Method to Performance improvement: 

By adding flexible segments or plasticizers to the formula, the low-temperature ductility and impact resistance of TPU can be further improved. In addition, some specially modified TPU, such as low-temperature resistant flame-retardant TPU or antibacterial TPU, can also meet more complex application requirements.

📣  Model recommendation:

There are various grades of low-temperature TPU materials available on the market, each with its own focus in different temperature ranges and application areas:

TPU DZ-64D: 

This material has a glass transition temperature as low as -45 ℃, and can still maintain softness and elasticity in severe cold environments. At the same time, it can withstand high thermal shock in the short term (melting temperature 155 ℃), making it suitable for products such as phone cases, casters, shoe soles, etc. that require wide temperature stability.

BASF B95A from Germany: 

Resistant to low temperatures up to -35 ℃, with excellent wear resistance and high elasticity, it is very suitable for use in fields such as sports shoes and industrial components that require strict performance.

Polyether TPU grades: 

Such as 9380AU, 9385AU, 9390AU, 9395AU and other series, are particularly suitable for high humidity or water environments, such as water sports equipment and medical products, with excellent resistance to hydrolysis and low temperature.

🏭  Application scenarios:

Low temperature TPU has been widely used in multiple industries due to its unique properties:

In the automotive field, it is used to manufacture components such as car seat ventilation bags, sealing strips, and casters. These components need to be repeatedly bent without breaking under the harsh winter conditions in the north.

Consumer electronics: As a material for mobile phone protective cases, it ensures that it does not become brittle at low temperatures and can effectively cushion the impact of falling; Also used for manufacturing connecting wires, protective films, etc.

Shoe material: used for the sole and upper of shoes, ensuring that the shoes will not harden or crack in low temperature environments during winter, while maintaining good elasticity and comfort.

Medical and Outdoor: Used for manufacturing medical equipment, protective clothing, life-saving supplies, etc., these products need to maintain stable performance in various extreme environments.

✅ Core principles of material selection:

Choose the polyether type first, 

as its low temperature resistance far exceeds that of the polyester type.

Check parameters: 

Pay attention to the glass transition temperature (Tg) of the material, the lower the value, the stronger the cold resistance.

Based on specific application scenarios :

(such as whether flame retardancy, antibacterial, and hydrolysis resistance are required), choose modified TPU with corresponding functions.