Temperature-controlled dimming film with a function of shielding near-infrared light and preparation method thereof

  • US 10,725,328 B2
  • Filed: 06/29/2017
  • Issued: 07/28/2020
  • Est. Priority Date: 12/16/2016
  • Status: Active Grant
First Claim
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1. A temperature-controlled dimming film with a function of shielding near-infrared light, characterized in thatsaid dimming film comprises a polymer network skeleton and liquid crystal molecules, wherein the polymer network skeleton consists of a polymer-dispersed liquid crystal network structure and a polymer-stabilized liquid crystal network structure and comprises a polymer matrix with pores inside which polymer networks are vertically aligned;

  • and the liquid crystal molecules are dispersed in the polymer network skeleton and have smectic-cholesteric phase transition;

    between the skeleton and the liquid crystal molecules, nanoparticles, having absorption at 800-3000 nm, are dispersed.

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