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Thermoplastic polyurethane (TPU) film is a versatile material known for its elasticity, waterproofness, breathability, and excellent tear resistance. Depending on the molecular structure of its soft segment, TPU can be categorized into two main types: polyether TPU film and polyester TPU film. Both share a similar base chemistry but perform differently under varying environmental and mechanical conditions. Recognizing these differences helps manufacturers select the right material for their product’s intended use.

The main distinction lies in the type of polyol used during polymerization. Polyether TPU is synthesized using polyether polyols, while polyester TPU is made from polyester polyols. This structural difference directly affects the film’s resistance to hydrolysis, chemical stability, and mechanical strength.
|
Property |
Polyether TPU Film |
Polyester TPU Film |
|
Hydrolysis Resistance |
Excellent; highly resistant to moisture and water aging |
Moderate; may degrade in humid or wet environments |
|
Mechanical Strength |
Good toughness and flexibility |
Higher tensile strength and hardness |
|
Temperature Resistance |
Performs well in cold conditions; flexible at low temperatures |
Better performance at higher temperatures |
|
Chemical Resistance |
Resistant to microbial attack and body fluids |
Resistant to oils, fuels, and many solvents |
|
Typical Appearance |
Softer and more elastic touch |
Slightly harder surface with glossy finish |
Each TPU type serves different performance goals. Choosing between polyether and polyester TPU film depends on the product’s environmental exposure, temperature range, and mechanical requirements. Polyether TPU excels in wet, cold, or humid environments, while polyester TPU is favored for applications requiring durability, stiffness, and oil resistance.
Our TPU films are produced using advanced German machinery and carefully selected raw materials sourced domestically and internationally. The available film thickness ranges from 0.007mm to 2.0mm, and the width is adjustable between 0.5m and 3.4m. All films undergo SGS testing to guarantee consistent performance and safety. With ten production lines and a monthly output of approximately 800 tons, we provide stable supply and fast delivery to our clients, serving as a trusted supplier for 80% of composite material factories in the home textile industry.
When selecting between polyether and polyester TPU film, consider environmental factors first. For applications exposed to moisture, cold temperatures, or continuous bending, polyether TPU offers better durability and flexibility. For high-temperature or oil-contact environments, polyester TPU delivers superior performance and longevity. Understanding the specific mechanical and environmental demands of your product will help ensure optimal performance and lifespan.
With a customer-centered philosophy and a commitment to continuous innovation, our company maintains an advanced position in TPU film technology. By integrating global raw materials and high-precision German equipment, we deliver polyether and polyester TPU films that combine comfort, strength, and functional reliability. This allows our clients to meet the performance requirements of demanding markets such as outdoor gear, medical supplies, and industrial applications.
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