Agricultural film is a type of plastic film used in agriculture for various purposes such as covering crops and protecting them from pests, weather, and UV radiation. The agricultural film is made in a single continuous process, where the plastic is melted and extruded through a die to form thin sheets. The sheets are then processed further to make the final TPU agricultural film.

The composition of agricultural film may vary depending on the specific requirements, but it generally contains polyethylene, plasticizers, UV stabilizers, and other additives for improved performance. For TPU agricultural film, it also contains TPU thermoplastic polymer. The proportion of TPU raw materials added in the production of agricultural film depends on the following factors: the environmental conditions that the agricultural film must deal with, the required physical properties, production process and cost, etc. Generally speaking, the addition ratio of TPU raw materials in the production of agricultural film is about 5%-30%. But it may be adjusted according to the specific situation.

The addition of TPU (Thermoplastic Polyurethane) raw materials to agricultural film has several potential benefits, including:

1. Improved mechanical properties: TPU is known for its excellent toughness, elasticity, and resistance to wear and tear. Adding TPU to agricultural film can enhance its strength, durability, and puncture resistance, which can help to protect crops from damage due to weather, pests, and other factors.

2. Better UV resistance: TPU is more resistant to UV radiation than many other polymers, such as HDPE (High-Density Polyethylene), which is commonly used in agricultural films. By adding TPU to the film, it can improve its UV resistance, which can reduce the degradation of the film and extend its service life.

3. Higher temperature resistance: TPU has a high melting point and can withstand exposure to high temperatures without degrading or becoming brittle. By adding TPU to agricultural film, it can improve the film's ability to withstand higher temperatures, which is particularly important in hot climates.

4. Enhanced adhesion: TPU has excellent adhesion properties, which can improve the bond between the film and other materials, such as frames, supports, or other films. This can improve the overall performance of the agricultural film system and provide better protection for crops.

Overall, the addition of TPU raw materials to agricultural film can improve its mechanical, thermal, and chemical properties, which can lead to better crop protection, reduced waste, and improved yields.