5results about How to "Improve coloring efficiency" patented technology

This invention belongs to the field of materials technology and relates to a method for preparing and applying nickel hydrogen phosphate electrochromic nanomaterials. It overcomes the technical problems of existing nickel-based electrochromic materials, such as low transmittance, small optical modulation range, and difficulty in large-size fabrication after film deposition on transparent conductive substrates. The method for preparing the described nickel hydrogen phosphate electrochromic film employs room-temperature electrodeposition technology. The prepared nickel hydrogen phosphate electrochromic material exhibits small, uniform nanoparticle size and allows for the construction of large-size in-situ films (10 × 10 cm). 2 The characteristics of this method make it suitable for constructing high-performance electrochromic films. The prepared films have the characteristics of high transmittance in the faded state, wide spectral modulation range, and high coloring efficiency. Moreover, the preparation process is low-cost and efficient, and can be mass-produced, making it easy to realize industrial production. It has broad application prospects in the fields of electrochromism, flexible wearables, and smart displays.

The utility model relates to a dyeing device for producing a round macromolecular polyethylene lifting belt, which belongs to the technical field of lifting belt dyeing and comprises a dyeing box, adjusting components for adjusting the position of the lifting belt are arranged on the left side and the right side of the dyeing box, and a rotating component for pressing the lifting belt is arranged at the top of the dyeing box. The adjusting assembly comprises a servo motor fixed to the side wall of the dyeing box, and a rotating pull rod is fixed to the side face of an output shaft of the servo motor. According to the dyeing device for production of the round macromolecular polyethylene lifting belt, the round lifting belt needing to be dyed on the front face is pulled into the dyeing box through the adjusting assembly, and the rotating assembly drives an annular frame to continuously drive the rotating frame to conduct high-end change in the continuous rotating process; the annular frame is driven by the driving fluted disc to rotate, so that the belt pressing roller continuously pushes the lifting belt to jump up and down in the dyeing box in the rotating process, and therefore the coloring efficiency and the dyeing effect of the lifting belt are improved.

The application discloses a kind of conjugated polymer based on alkyl-substituted phenyl and its preparation method and application, belong to polymer material technical field.The conjugated polymer provided in the application has structural formula as shown in formula (I):In formula (I), X1-X4 each independently is H or R, and at least one of X1-X4 is R.The alkyl-substituted phenyl is used as intermediate unit in the application, 3,4-ethylenedioxythiophene is used as electron-donating unit, by introducing benzene ring, so that rigid coplanar existence fusion ring structure in molecule, enhance charge flow, again combined with the alkyl of specific substitution quantity and substitution position, can adjust the electronic distribution and conjugated chain length of conjugated polymer, obtain the conjugated polymer with good electrochromic performance such as low bandwidth, wide absorption range, fast response time, good optical transmittance, good stability, the conjugated polymer has wide application in the preparation of electrochromic material or electrochromic device.

The invention relates to a preparation method of electrochromic gel and an electrochromic device thereof. The electrochromic gel is prepared by mixing a gel polymer, an electrochromic material, an ion storage material, a solvent and an electrolyte, and the gel polymer is prepared by mixing an acrylate monomer, polyvinylidene fluoride (PVDF) and an isocyanate crosslinking agent and then carrying out thermal initiation polymerization, the electrochromic material is a viologen compound, the ion storage material is a phenazine derivative, and the electrolyte is an ionic salt. The electrochromic gel is prepared by adding a viologen compound, a phenazine compound and an ionic salt into a gel polymer reaction solution to form an electrochromic mixed solution and then adopting a thermocuring mode. The prepared electrochromic device has excellent response time, color-changing stability and environmental adaptability, and can be used in the fields of anti-dazzling rearview mirrors, intelligent color-changing skylights and the like.

This invention discloses a method for preparing an electrochromic ion storage layer thin film, comprising the following steps: S1: reacting terephthalaldehyde or a terephthalaldehyde derivative with 2-acetylpyridine or a 2-acetylpyridine derivative to generate 1,4-bis[1,5-dioxo-1,5-bis(2-pyridyl)pentan-3-yl]benzene or a derivative thereof; then reacting it with ammonium acetate to obtain an organic ligand; reacting it with RuCl2(DMSO)4 to obtain a metal supramolecular polymer; S2: mixing it uniformly with a solvent and dimethylformamide to obtain an electrochemical deposition precursor solution; S3: depositing it at a constant potential via electrochemical deposition to obtain the electrochromic ion storage layer thin film. The thin film prepared by this invention not only has advantages such as fast response speed, high coloring efficiency, and wide optical modulation range, but also has good cycling stability.