2results about How to "Improves moisture stability" patented technology

The present invention relates to the field of adhesives, and specifically discloses a bio-based two-component polyurethane adhesive, including: component A and component B, the mass ratio of component A to component B is 0.8-1.2:0.8-1.2; the raw materials of component A include by mass: 3-5 parts of castor oil, 3-5 parts of epoxy soybean oil polyol, 10-15 parts of isocyanate, and 1-2 parts of carboxyl-terminated polyamide-amine; the raw materials of component B include by mass: 1-2 parts of tannic acid, 2-4 parts of lignin, 1-2 parts of dimethylglyoxime, 5-8 parts of ricinoleyl alcohol, 3-5 parts of isocyanate, 1-2 parts of epoxy soybean oil, 1-2 parts of fly ash, and 1-2 parts of nano titanium dioxide. The present invention also discloses a method for preparing the above-mentioned bio-based two-component polyurethane adhesive. Renewable castor oil and epoxy soybean oil polyol are compounded, and synergistically act with bio-based materials tannic acid and lignin to effectively implement the concept of environmental protection.

The application discloses a multifunctional additive modified inverted perovskite solar cell. The structure of the cell is composed of a bottom electrode, a hole transport layer, a modification layer, a perovskite light absorption layer, an electron transport layer, a buffer layer and a counter electrode from top to bottom. The modification layer is made of one or two of PEAI, Cl-PEAI and F-PEAI. The perovskite light absorption layer is a perovskite containing 2-hydrazinobenzothiazole modification, and the doping amount of 2-hydrazinobenzothiazole in the perovskite active layer is 0.01-10wt%. The application effectively improves the photoelectric conversion efficiency of the perovskite solar cell, exhibits excellent photoelectric conversion performance, and has a wide and good application prospect.