TPU Outdoors Film

Extrusion Method: The raw TPU material is added to the barrel of the extruder, heated and melted, then extruded into a sheet film. The film is then directly chrome-plated on the surface, trimmed, and wound into rolls.

Blow Molding Method: The characteristic of the blow molding method is that the extruded TPU film is shaped into a tube blank through an annular gap mold. At the same time, compressed air is introduced axially from the mandrel, and the TPU film is clamped between a pair of clamping rods, maintaining constant internal pressure. The film then expands to the desired diameter. After cooling and setting, the film is drawn and coiled.

Calendering Method: This method involves continuously forming TPU film using multiple heated, rotating rollers arranged adjacently. The thickness of the TPU film is determined by the gap between the last two rollers.

Casting Method: First, the TPU film raw material is melted, filtered, and degassed. It is then fed into a casting machine, where the molten material is cast into a TPU film of the desired thickness through a casting nozzle.

Stretching Method: This film-forming method involves stretching the TPU film both longitudinally and transversely between the softening and melting temperatures. TPU film stretching can be divided into uniaxial and biaxial stretching, with biaxial stretching being primarily used in actual production. Biaxial stretching enhances the properties of TPU films.

The service life of TPU film depends on various application scenarios and usage conditions. A detailed explanation is provided below:

TPU film is a high-performance material known for its excellent physical and chemical properties, as well as its durability, which makes it widely used in many industries. It is commonly found in medical, electronics, automotive, textile, packaging, and other sectors, where it is used for applications such as waterproofing, dustproofing, heat insulation, and protection.

The service life of TPU film is influenced by several factors, including the following:

Usage Environment: The service life of TPU film is closely related to the environment in which it is used. If exposed to harsh conditions, such as extreme temperatures, ultraviolet radiation, or chemical exposure, the performance and lifespan of the film may be compromised. Therefore, when selecting TPU film, it is important to consider the specific environmental conditions and choose the appropriate model and specifications.

Stress and Load: TPU film is subjected to various stresses and loads during use, including stretching, bending, and pressure. Excessive stress or prolonged overloading can lead to fatigue and damage, which shortens the film’s service life. To ensure longevity, it is important to evaluate the stress and load the film will endure and take steps to minimize stress concentration and potential damage.

Maintenance: Proper maintenance plays a crucial role in extending the service life of TPU film. Regular cleaning, keeping the film dry, and storing it under proper conditions can help maintain its performance and longevity. Additionally, avoiding contact with sharp objects, corrosive substances, and other damaging factors is essential to protecting the film.

Quality and Manufacturing Process: The quality of the raw materials and the manufacturing process directly affect the service life of TPU film. High-quality materials and rigorous manufacturing standards enhance the film’s performance and durability, thus extending its lifespan. When choosing a supplier, it is advisable to select one with experience and a good reputation to ensure the quality and reliability of the product.