6results about How to "Increase intermolecular forces" patented technology

The application belongs to the technical field of organic electroluminescence, and relates to an organic compound, an organic electroluminescent device using the same and an electronic device. The organic compound has a structure as shown in formula 1. When the organic compound is used in an organic electroluminescent device, the performance of the organic electroluminescent device can be significantly improved.

The embodiment of the invention provides an aerosol generating medium section, a preparation method thereof and an aerosol generating product. The preparation method of the aerosol generating medium section comprises the following steps: preparing slurry, wherein the slurry comprises a base material and fuming medium gel; carrying out tape casting on the slurry to form a sheet-shaped substrate; winding the sheet matrix to form a winding structure; the wound structure is cut to form aerosol-generating media segments. According to the aerosol generating medium section and the preparation method thereof, the aerosol generating product contains the fuming medium gel, and the fuming medium in the fuming medium gel is located in the meshes of the three-dimensional network structure, so that the intermolecular acting force of the fuming medium is improved, the hydrophilic capacity of the fuming medium is reduced, and the fuming effect is improved. And the possibility that the fuming medium is damped and mildewed during the storage period of the aerosol generating medium section can be reduced.

The application discloses a kind of high-strength waterproof board and preparation method thereof, it is related to plate technical field.The preparation method of the application includes the following steps: sequentially stack 1 steel plate, 2 base plates, 1 fingerprint-resistant polymer film on 1 fingerprint-resistant polymer film, then heat pressing solidification, after cooling, plate is taken out, and high-strength waterproof board is obtained;Wherein, base plate is prepared from modified kraft paper and modified color paper.The water resistance, fire resistance and bonding strength of the plate are effectively improved by modifying kraft paper with modified phenolic resin, hydrophilic silicon dioxide and other components;The bonding strength, water resistance and fire resistance of the plate are further improved by modifying color paper with melamine, vanillin, flame retardant DOPO, 3,4-dihydroxybenzaldehyde and other components.Therefore, the application has a more extensive application prospect.

The invention discloses composite acrylic resin and application thereof in automobile painting, and belongs to the technical field of composite acrylic resin preparation. The invention discloses composite acrylic resin. The anti-aging coating is prepared from the following components in parts by weight: 40 to 55 parts of methyl methacrylate, 20 to 25 parts of styrene, 32 to 45 parts of butyl acrylate, 18 to 26 parts of ethyl acrylate, 2 to 5 parts of glycidyl methacrylate, 0.2 to 0.6 part of azodiisobutyronitrile, 30 to 46 parts of distilled water, 10 to 14 parts of ethylene glycol, 0.7 to 1.2 parts of a composite anti-aging agent, 0.9 to 1.4 parts of a composite reinforcing agent and 0.5 to 1 part of a dispersing agent. 0.1 to 0.5 part of a defoaming agent and 0.1 to 0.4 part of an antioxidant. The composite acrylic resin prepared by the method has excellent adhesive force and chemical corrosion resistance.

The application belongs to the field of engineering technology and provides a preparation method of a nucleic acid separation device. The preparation method of the application prepares a hydrogel nucleic acid adsorption device through a photo-initiated radical polymerization reaction, avoiding the cumbersome limitations of traditional polymerization reactions which need to be carried out under anaerobic conditions. The preparation method is simple and fast, and does not depend on professional and precise instruments. The raw materials are cheap and easy to obtain. The method can efficiently load silica particles, effectively combine the plasticity of the hydrogel with the high specific surface area of the silica particles and the strong binding capacity of the nucleic acid, and further obtain a handheld nucleic acid extraction device which can change shape, size and quantity at any time according to application requirements, has a high specific surface area and excellent nucleic acid extraction performance. Compared with traditional processes, the preparation process is simpler, the application range is wider, and the application requirements of low resource environment are greatly met, and the application prospect in the field of outdoor and clinical nucleic acid extraction technology is broad.

This invention relates to the field of epoxy adhesive technology, and discloses an epoxy adhesive for semiconductor chip packaging and its preparation process; including the following steps: Step 1: Epoxy resin and 3-(perfluorohexyl)epoxypropane are added to ethanol and mixed evenly, then 2-imidazolium-1-ethylamine is added, and the mixture is reacted at 50~60℃ for 4~6 hours to obtain modified epoxy resin; Step 2: Modified epoxy resin, modified polyurethane, defoamer, and diluent are vacuumed and stirred at 800~1200 rpm / min for 40~50 minutes, then nano zinc oxide and curing agent are added sequentially, and the stirring speed is reduced to 200~400 rpm / min for 1~2 hours to obtain epoxy adhesive.