3 results about "Absorbance" patented technology

The invention relates to thermal insulation paint used on glass, belonging to the technical field of thermal insulation paint. The thermal insulation paint aims at solving the problems that in the prior art, the thermal insulation paint for glass is barely satisfactory in the aspects of absorbance, reflection and transmittance of light rays, meanwhile, such aspects as abrasive resistance, adhesive force and the like have no prominence either, the environmental protection performance is poor, and the requirement for existing green production cannot be met. The thermal insulation paint used on the glass is prepared from the following components in parts by weight: 8 to 30 parts of a SiO2 aerogel water dispersion paste, 10 to 20 parts of nanometer ATO aqueous dispersion liquid, 26 to 50 parts of aqueous acrylic resin, 25 to 90 parts of aqueous polyurethane resin and an adjuvant. The thermal insulation paint used on the glass is safe in use and environment-friendly, does not cause destruction to the environment, is simple in construction, and has excellent waterproof performance and thermal insulation performance.

The invention discloses a method for colorimetric detection of hydrogen peroxide by utilizing metal organic complexes. The method comprises the following steps of: (1) preparing inorganic salt solution of valence-variable metals into solution I; (2) preparing 2-methylimidazole solution or 4,4-dipyridyl into solution II; (3) mixing the solution I with the solution II, so as to prepare metal organic complex solution; and (4) mixing dimethyl sulfoxide solution of peroxidase color source substrates and the metal organic complex solution with a to-be-tested hydrogen peroxide sample, diluting the solution by utilizing buffer solution to obtain solution A, standing, testing the absorbance value of the solution A in a visible light region, and detecting the concentration of the hydrogen peroxide by utilizing the colorimetric detection. According to the method disclosed by the invention, the detection time can be greatly shortened, the operation is simple, the cost is low, and the disadvantages that the cost is high when metal nanoparticles are utilized and the reaction time is long when mimic enzymes such as metallic oxide are utilized are avoided.

Disclosed herein is a photo-alignment polymer, which can be preferably applied to an alignment layer or the like of a three-dimensional display device because its alignment direction is easily changed depending on the polarization direction, and an alignment layer and liquid crystal retardation film including the same. The photo-alignment layer includes a cyclic olefin repeating unit substituted with one or more photoreactive groups, and has an absorbance ratio of 0.02 or more, the absorbance ratio being defined by Mathematical Formula 1 above, when the photo-alignment polymer is exposed to first polarized UV radiation having a wavelength of 280 to 315 nm and a first polarization direction at an exposure intensity of 60 mJ/cm² or less to conduct first photo-alignment and is then exposed to second polarized UV radiation having a wavelength of 280 to 315 nm and a second polarization direction changed by 90° from the first polarization direction at an exposure intensity of 60 mJ/cm² or less to conduct second photo-alignment.