Silicone TPU Composite Film

Liquid silicone rubber (LSR) and thermoplastic polyurethane (TPU) composite film is a new type of polymer material that combines the excellent properties of liquid silicone rubber with the easy bonding and high mechanical strength characteristics of TPU. This composite film shows broad application prospects in multiple fields, especially in medical, electronics, automotive, and consumer goods industries.

It has good development prospects and a broad application market.

Performance Advantages of Liquid Silicone Rubber TPU Composite Film

The liquid silicone rubber TPU composite film combines the advantages of both materials and has the following performance advantages:

1. Excellent Mechanical Properties

The composite film inherits TPU's high mechanical strength and the flexibility of liquid silicone rubber, making it perform excellently in applications requiring high strength and high elasticity. For example, in automotive seals and medical catheters, the composite film can withstand significant mechanical stress without breaking easily.

2. Good Weather Resistance

The weather resistance of liquid silicone rubber gives the composite film a long service life in outdoor applications. Whether exposed to high temperatures, low temperatures, or UV irradiation, the composite film maintains stable performance.

3. Biocompatibility

The biocompatibility of liquid silicone rubber makes the composite film have broad application prospects in medical and food contact fields. For example, in medical catheters and food packaging, the composite film ensures the safety and reliability of the material.

4. Excellent Insulation Properties

The electrical insulation properties of liquid silicone rubber make the composite film important in the electronics and electrical industries. For example, in cable insulation layers and electronic component protective films, the composite film effectively prevents electrical breakdown and short circuits.

5. Easy Bonding

Silicone rubber has low surface energy, and when using silicone rubber PDMS film alone as a substrate, it is difficult to bond firmly with other substrates. By adding a TPU transition layer, it ensures the overall strength of the composite film while enabling bonding with other materials. Bonding methods: 1. High-frequency welding, 2. Hot melt adhesive, PUR, etc.

Application Fields

Liquid silicone rubber TPU composite film has wide applications in multiple fields, mainly including:

• Medical Industry

In the medical industry, the composite film is used to manufacture catheters, surgical instruments, and medical packaging materials. Its biocompatibility and flexibility ensure the safety and comfort of the material.

• Electronics Packaging 3C Industry

In the electronics packaging industry, silicone rubber TPU composite film can be used for digital product casings, packaging material decorations, etc., solving the problem of single texture color in TPU while providing a good silicone feel.

• Automotive Industry

In the automotive industry, the composite film is used to manufacture seals, hoses, and interior materials. Its high mechanical strength and weather resistance ensure the durability and safety of automotive components.

• Consumer Goods Industry

In the consumer goods industry, the composite film is used to manufacture sports equipment, toys, and home products. Its flexibility and wear resistance ensure the comfort and durability of the products.

Typical Physical and Chemical Data

Surface Coating	100% Silicone Material
Substrate	TPU
Thickness	0.3-0.8mm customizable
Width	50-135cm customizable
Color	Customizable