Japan's Nissan Motor Co Ltd uses a vapor-deposited film made of aluminum (AI) alloy in its new Leaf electric vehicle (EV) model as heat insulation for its roof lining material. At present, this Leaf electric car has been on the market as early as September 2017.
The infrared reflectivity of aluminum alloy is very high, so the color of the entire roof lining and the side of the roof is silver. The main function of the silver insulation material is to prevent heat from entering the vehicle interior. The material was provided by Kasai Kogyo Co Ltd. This is the first time Hexi Industry has supplied the material to Nissan.
Hexi Industry said that the thermal insulation materials used do not easily absorb the radiant heat of sunlight. Through the aluminum deposition layer, the new hearing model can prevent heat from passing from the roof to the car and from the car to the car, thereby reducing the use of air conditioning in the summer and improving heating efficiency in the winter.
To be precise, the new Linfeng's interior lining structure has six layers of deposits. Viewed from the side of the roof, the deposited layers include PET (polyethylene terephthalate) films, aluminum deposition layers, glass mats, polyurethane substrates, glass mats, and roof covers. The fleet lining of the previous version of the LeFeng model consisted mainly of a polyurethane substrate and a non-woven covering.