4results about How to "Excellent self-healing function" patented technology

This invention provides a carbon dioxide-based 3D printing material, its preparation method, and its application. The carbon dioxide-based 3D printing material is prepared from raw materials comprising specific mass parts of PPC, PLA, and a compatibilizer. The compatibilizer is preferably a terpolymer of carbon dioxide, propylene oxide, and a functional monomer, wherein the functional monomer is selected from allyl glycidyl ether and / or glycidyl methacrylate having epoxy groups. Practical application has shown that the carbon dioxide-based 3D printing material provided by this invention exhibits significant impact resistance, shape memory, and self-healing effects. Its impact strength reaches 15.11 KJ / m according to the GB / T 1843-2008 standard for testing the unnotched impact strength of plastic cantilever beams. 2 The highest value can reach 20.54 KJ / m 2 Meanwhile, this carbon dioxide-based 3D printing material also possesses excellent shape memory properties.

The invention discloses a cathode-free solid-state battery based on a multi-hydrogen-bond polyurethane polymer and a preparation method, and belongs to the technical field of solid-state batteries. The negative-electrode-free solid-state battery comprises a positive electrode, an electrolyte layer and a copper foil current collector, wherein a polyurethane polymer with multiple hydrogen bonds is introduced into the electrolyte layer. The polyurethane polymer with multiple hydrogen bonds forms a dynamic cross-linked hydrogen bond network through a plurality of hydrogen bond donors and hydrogen bond receptors contained in a molecular chain, and has an excellent self-repairing function. The polymer is introduced into an electrolyte layer, real-time protection and repair of an electrolyte-electrode interface are realized by utilizing the self-repairing characteristic of the polymer, generation and expansion of interface cracks are effectively inhibited, and a more uniform and stable electrolyte / copper foil interface is constructed. And the uniform interface can guide lithium to be uniformly deposited on the surface of the copper foil current collector, so that the growth of lithium dendrites and the generation of dead lithium are avoided, and the coulombic efficiency, the rate capability and the long cycle stability of the negative-electrode-free solid-state battery are remarkably improved.

The application discloses a kind of fast self-repairing alkoxylated polyethylene imine material and preparation method and application, it is related to solar photovoltaic packaging material technical field.The method includes alkoxylated ethenyl imidazole imidazolium double trifluoromethane sulfonimide monomer is dissolved in DMSO solvent, then a certain proportion of initiator is added as initiator, and under the protection of nitrogen atmosphere, radical polymerization reaction is initiated at 70~90 ℃, after multiple washing with ethyl acetate, alkoxylated polyethylene imine material is obtained.The application is based on alkoxylated imidazole monomer, through alkylation reaction, ion exchange reaction and radical polymerization reaction, successfully build alkoxylated polyethylene imine material, while designing to realize the fast self-repairing function of packaging material and the effect of inhibiting lead leakage, finally realize the lossless packaging of solar photovoltaic cell, improve the operating stability of photovoltaic product.

The application belongs to the field of polymer gel electrolyte, and discloses a polyurea-based gel electrolyte, a preparation method and application.The polyurea-based gel electrolyte comprises a soft segment, a hard segment and a eutectic solvent component, wherein the soft segment is a polyether amine, the hard segment is a polyisocyanate containing a benzene ring structure, and the soft segment and the hard segment are first formed into a polyurea skeleton and can be separated under the induction of the eutectic solvent.The application improves the specific composition and detailed structure of the electrolyte, uses polyether amine as the soft segment, uses polyisocyanate containing a benzene ring structure as the hard segment, and separates the soft segment and the hard segment under the induction of the eutectic solvent, so that the polyether amine and the eutectic solvent transmit ions as a functional phase, the benzene ring stacking structure formed through hydrogen bonding and pi-pi interaction serves as a reinforcing phase to maintain the mechanical stability of the electrolyte, and the separation of the functional phase and the reinforcing phase realizes the dual improvement of the electrochemical performance and the mechanical performance.