Compared with other materials, TPU film has a certain degree of breathability. TPU film is a material widely used in various fields and has a variety of excellent properties. In addition to its wear resistance, high transparency and good self-healing properties, TPU film also has certain breathability properties. This article will introduce in detail the breathable properties of TPU films and their important role in various application fields.

Breathability of TPU film

1. Composition and structure of TPU film

TPU film is made of thermoplastic polyurethane, and its special molecular structure gives it certain breathability properties. The TPU film is composed of linear polymers and cross-linking agents, forming a unique porous structure that makes it breathable.

2. Principle of breathability

The breathability of TPU film is mainly based on its porous structure. These tiny pores allow air and water vapor to pass through while blocking most liquid and solid particles. The breathability of TPU films depends on the size and distribution of pores, as well as the thickness of the TPU material.

3. Breathability test method

The breathability of TPU films can be evaluated through a variety of testing methods, one of the most commonly used methods is the permeability test. This test determines the breathability of a film by measuring the rate at which gas or water vapor passes through it per unit time.

TPU film application fields

1. Clothing and footwear

The breathability of TPU film makes it an ideal material for clothing and footwear. Breathability can improve wearing comfort, reduce sweat, and avoid bacterial growth, while maintaining the breathability and waterproof properties of clothing and shoes.

2. Packaging industry

In the packaging industry, the breathable performance of TPU films can be applied to packaging materials such as food and medicine. It can help control gas and humidity inside packaging to extend the shelf life of food and medicine.

3. Medical field

The breathability of TPU films is widely used in the medical field. For example, in dressings and medical bandages, TPU films can provide breathability and waterproofing, promoting wound healing and comfort.

4.Sports equipment

The breathability of TPU film makes it an ideal material for sports equipment. For example, it can be applied to products such as sportswear, insoles and gloves to provide good breathability and comfort.

5. Industrial field

In the industrial field, the breathable performance of TPU films can be applied to products such as filter materials, separators, and protective films. It can achieve gas penetration and liquid barrier to meet the needs of different fields.

As a material, TPU film has certain breathability properties in addition to other excellent properties. This makes TPU films have broad application prospects in various fields. Breathability can improve the comfort of products, extend the shelf life of food and medicine, and promote wound healing. With the continuous advancement of technology, the breathability performance of TPU films will be further developed and improved, bringing more innovative applications to more fields.