Suitable Composite Aluminum Foil for Car Sunshades

In the production of car sunshades, the choice of composite aluminum foil is crucial as it directly affects the sunshade, heat insulation effect and service life of the sunshade. Specifically in terms of material structure and thickness, the following types of composite aluminum foil perform well.

AL+PET Composite Aluminum Foil

AL refers to aluminum foil, and PET is polyethylene terephthalate. This structure of composite aluminum foil is widely used in car sunshades. The thickness of the aluminum foil layer is usually 0.01 - 0.03mm, which can efficiently reflect sunlight and reduce heat entering the car. The thickness of the PET layer is generally 0.02 - 0.05mm, which has good mechanical strength and weather resistance, can protect the aluminum foil layer from damage by the external environment, and at the same time increase the overall stiffness of the composite aluminum foil, facilitating the forming and installation of the sunshade. The overall thickness is between 0.03 - 0.08mm, which not only ensures good heat insulation and reflection performance, but also is not too thick, making it convenient for storage.

AL+PE Composite Aluminum Foil

PE is polyethylene. The thickness of the aluminum foil layer in AL+PE composite aluminum foil is also 0.01 - 0.03mm, which plays a major role in reflecting light. The PE layer is relatively thick, usually 0.05 - 0.1mm. PE material has good flexibility and heat insulation, which can enhance the buffer performance of the composite aluminum foil and reduce the heat transfer caused by direct sunlight to a certain extent. The overall thickness is 0.06 - 0.13mm. This structure of composite aluminum foil is relatively soft, has a better effect of fitting the car glass, and is more convenient to operate during installation.

AL+EVA Composite Aluminum Foil

EVA is ethylene - vinyl acetate copolymer. In AL+EVA composite aluminum foil, the thickness of the aluminum foil layer is 0.01 - 0.03mm, maintaining high - efficiency light reflection ability. The thickness of the EVA layer is 0.03 - 0.08mm. EVA has excellent viscosity and flexibility, which can make the composite aluminum foil better fit with other materials, and at the same time, it itself has certain heat insulation and thermal insulation performance. The overall thickness is 0.04 - 0.11mm. This structure of composite aluminum foil has strong weather resistance, is not easy to crack or deform in high and low temperature environments, and is suitable for long - term outdoor use.

Multi - layer Composite Aluminum Foil (such as AL+PET+PE)

To further improve the performance of sunshades, multi - layer composite structures are also used. For example, AL+PET+PE composite aluminum foil, the aluminum foil layer thickness is 0.01 - 0.03mm, the PET layer thickness is 0.02 - 0.04mm, the PE layer thickness is 0.04 - 0.08mm, and the overall thickness is 0.07 - 0.15mm. This multi - layer structure combines the advantages of each layer of materials. The PET layer provides strength and weather resistance, the PE layer enhances flexibility and heat insulation, and the aluminum foil layer is responsible for reflecting light, which can comprehensively improve the sunshade, heat insulation effect and service life of the car sunshade.

To sum up, the composite aluminum foil suitable for car sunshades mostly adopts the composite of aluminum foil and materials such as PET, PE, EVA in terms of material structure. The thickness of each layer and the overall thickness of different structures have their own characteristics. They can all meet the requirements of sunshades in terms of heat insulation and reflection, weather resistance, flexibility, etc. Car owners can choose appropriate products according to actual usage scenarios and needs.