Automobile sunroof functional film integrating functions of temperature regulation and rainfall sensing
A technology for temperature regulation and car sunroof, applied in the direction of rainfall/precipitation gauges, measuring devices, vehicle components, etc., can solve the problem of increasing the energy consumption of heating in the car, so as to promote energy saving, curb global warming, and simple devices Effect
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Embodiment 1
[0041] This embodiment provides a car sunroof functional film that integrates temperature regulation and rain sensing functions. In this embodiment, the radiation cooling insulating layer 1 selects PTFE film, the conductive layer 2 selects ITO film, and the thermochromic layer 3 selects temperature-sensitive hydrogel. The heat absorbing layer 4 chooses chrome film, size: 1200mm×740mm, the specific structure is as follows figure 1 shown.
[0042]The ITO thin film is a conductive thin film with better light transmittance, prepared by magnetron sputtering, and the thickness is 0.4mm; the PTFE thin film is prepared by drop casting, and the PTFE precursor solution is deposited on the above-mentioned ITO thin film, and the Heating at ℃ for 15 minutes for curing treatment to obtain a closely connected ITO film and PTFE film on the glass substrate. The thickness of the PTFE film is 10 μm. Finally, the ITO / PTFE composite film is peeled off from the glass substrate; the temperature-sens...
Embodiment 2
[0045] This embodiment provides another car sunroof functional film that integrates temperature regulation and rain sensing functions. The radiation cooling insulating layer 1 selects polydimethylsiloxane (PDMS) film, the conductive layer 2 selects ITO film, and the thermochromic layer 3 Select temperature-sensitive hydrogel material, heat-absorbing layer 4 No material is selected, that is, heat-absorbing layer is not used, and temperature-sensitive hydrogel is directly encapsulated between the car sunroof glass and ITO / PDMS composite film, size: 1200mm×740mm.
[0046] The preparation method and size of the ITO thin film and the temperature-sensitive hydrogel are the same as in Example 1; the PDMS thin film is prepared by the pulling coating method, and the ITO thin film is used as the substrate, and the PDMS matrix and the curing agent are uniformly mixed at a mass ratio of 10:1. Cured at 60°C for 2 hours, the thickness is 1 μm, and the extinction coefficient of PDMS is as fol...
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