3results about How to "Increase the interface contact area" patented technology

The application discloses a preparation method of a P / N / Si multi-element reactive halogen-free flame retardant, specifically comprising the following steps: preparing DOPO grafted 3-chloropropyl trimethoxysilane, which is denoted as PPTMS; preparing a cage-like POSS containing DOPO, which is denoted as PSC; mixing the PSC with toluene to obtain a PSC solution; uniformly mixing maleimide MI with toluene, dropwise adding the PSC solution into the maleimide MI solution to perform a condensation reflux reaction, and performing vacuum rotary evaporation to obtain the P / N / Si multi-element reactive halogen-free flame retardant. The phosphorus-containing monomer, the nitrogen-containing monomer and the silicon-containing monomer in the flame retardant are covalently bonded, and the multi-elements in the molecule exist in the form of a collection acid source, a carbon source, a gas source and a ceramicization, wherein the phosphorus-containing monomer is dehydrated into carbon, the nitrogen-containing monomer releases non-combustible gas to dilute the gas phase, and the silicon-containing monomer forms a dense ceramic barrier layer to improve the triple synergy of carbon residue strength and anti-dripping property, thereby greatly improving the flame retardant efficiency.

The application provides a preparation method of a gel polymer electrolyte for energy storage frequency modulation and an integrated battery, and belongs to the technical field of lithium ion secondary batteries and electrochemical energy materials, and can at least partially solve the problems of the existing gel polymer electrolyte, such as the contradiction between mechanical properties and ionic conductivity, poor interface compatibility, weak lithium dendrite inhibition ability, and insufficient thermal stability and flame retardancy. The gel polymer electrolyte prepared by constructing a dynamic covalent cross-linked polyimide-polyionic liquid interpenetrating network and using monatomic iron-anchored phosphorus-doped carbon nitride nanosheets as a multifunctional filler has excellent mechanical properties and high ionic conductivity, and the flame retardancy is greatly improved, and the growth of lithium dendrites can be effectively inhibited. Meanwhile, the integrated battery is prepared by using an ultraviolet light-initiated in-situ polymerization process, which is suitable for the roll-to-roll large-scale production line of existing lithium batteries, and the interface bonding force of the battery is strengthened, the cycle stability is improved, and the high-frequency response requirement of energy storage frequency modulation is met.

This invention discloses a double-through-structure bimetallic composite material, its preparation method, and its application. The composite material comprises a stainless steel porous framework and an aluminum-based composite material filler; the aluminum-based composite material is uniformly filled within the stainless steel porous framework structure; the aluminum-based composite material comprises AlSi. X Mg (0 ≤ x ≤ 10) and B4C. The composite material of this invention consists of spherical AlSi... X This composite material is prepared by mixing Mg (0 ≤ x ≤ 10) alloy powder and B4C powder in a specific ratio and then sintering. It exhibits excellent energy absorption properties, high strength, and impact resistance, making it suitable for applications in aerospace, automotive, and protective equipment. The production method is simple, with a short production cycle and high efficiency. Furthermore, this material significantly improves the deformation resistance and impact resistance of traditional stainless steel and aluminum alloys under impact conditions, thereby broadening its application range in industrial fields.