Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1483results about How to "Improve interface performance" patented technology

Silicon monoxide/silicon/lithium metasilicate composite negative electrode material and preparation method thereof

The invention discloses a silicon monoxide/silicon/lithium metasilicate composite negative electrode material. The silicon monoxide/silicon/lithium metasilicate composite negative electrode material comprises a silicon monoxide/silicon/lithium metasilicate composite material and an inorganic matter coating layer. The invention also provides a preparation method of the silicon monoxide/silicon/lithium metasilicate composite negative electrode material. The preparation method comprises the following steps: taking silicon monoxide and an inorganic compound of lithium element, mixing and ball-milling the silicon monoxide and the inorganic compound of the lithium element, sintering the obtained mixture in a protection gas environment, and naturally cooling the sintered mixture to obtain the silicon monoxide/silicon/lithium metasilicate composite material; and mixing and ball-milling the silicon monoxide/silicon/lithium metasilicate composite material and sintering the obtained mixture undera protection gas condition. The preparation method of the silicon monoxide/silicon/lithium metasilicate composite negative electrode material has the advantages of simplicity, safety, low cost, and easiness in operation and industrial production, and the obtained composite negative electrode material has the advantages of high reversible capacity, excellent cycle performances and high initial Coulomb efficiency.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY

Multifunctional graphene electrothermal paste, multifunctional electrothermal film prepared by same, preparation method and application

The present invention discloses multifunctional graphene electrothermal paste, a multifunctional electrothermal film prepared by the same, a preparation method and application. The preparation methodcomprises the following steps that: (1) graphene nanoplatelets are modified by introducing inducible lipidation and cross-linking reaction groups; (2) the modified graphene, a lipidizable and cross-linking reaction emulsion and various kinds of additives are subjected to liquid phase mixing, the above dispersion liquid is induced to undergo in-situ esterification and cross-linking reaction, so that graphene-based homogeneous electrothermal paste can be formed; (3) an electrothermal paste loading matrix is modified, so that the interfacial property of the electrothermal paste and the matrix material can be enhanced; and (4) the graphene electrothermal paste can be combined with different base materials, so that electrothermal products can be prepared. The graphene electrothermal material ofthe invention has the advantages of adjustable resistivity, adjustable use voltage, adjustable heating efficiency, far infrared heating function, flame retardancy, wide application range, high safety, energy-saving performance and the like, and can be applied to home building material manufacturing, human body care, aviation equipment, medical equipment, transportation pipelines, automobiles andother fields.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI

Polyacrylamide composite flocculant and preparation method thereof

The invention discloses a polyacrylamide composite flocculant and a preparation method thereof. The polyacrylamide composite flocculant is synthesized in situ by the following steps: carrying out inorganic high polymer flocculant surface treatment on acrylamide, an inorganic high polymer flocculant, an initiator, acryloyloxyethyldimethyl long-chain alkyl ammonium bromide and an olefinic-bond-containing silane coupling agent, preparing the polyacrylamide in-situ composite flocculant, and the like. The acrylamide molecule is introduced to the cationic flexible long branched chain structure, so that the physical entanglement network structure can better display the bridge mesh function. By compounding the inorganic high polymer flocculant with the cationic polyacrylamide, the reactive coupling agent is adopted to modify the inorganic high polymer flocculant surface, and the coupling agent molecule participates in the acrylamide polymerization reaction to graft the inorganic high polymer flocculant molecule onto the polyacrylamide molecule, thereby enhancing the interface action between the inorganic high polymer flocculant and polyacrylamide molecule and the adsorption, neutralization, sweep mesh actions on pollutants in sewage.
Owner:四川省科学城天人环保有限公司

Carbon nano-tube connecting carbon fiber multi-scale reinforcing body and method for producing the same

InactiveCN101173386ATake full advantage of mechanical propertiesRealize chemical bond connectionFibre treatmentArtificial filament chemical after-treatmentFiberCarbon fibers
The invention discloses a multi-scale reinforcement body that carbon nano-tube is connected with carbon fiber and a preparation method aiming at solving the drawbacks of increasing rigidity at the interface, lowering toughness of material and not improving performance of resin base between the fibers and between carbon fiber plywoods after prior carbon fiber treatment is made. The multi-scale reinforcement body of carbon nano-tube connecting carbon fiber is made through combining between a carbon nano-tube decorated by 1, 6 hexamethylenediamine and carbon fiber with acyl chloride functional group on the surface. The preparation method comprises: the carbon nano-tube decorated by 1, 6 hexamethylenediamine and the carbon fiber with acyl chloride functional group on the surface are prepared before put into N,N-dimethylformamide for reaction, thereby getting the multi-scale reinforcement body of carbon nano-tube connecting carbon fiber. The invention has the advantages of big activity on the surface, a plurality of chemical activated functional groups, strong reactive activity, good cohesiveness with the base, improving shearing intensity at the interface for composite material by 127.5% to 144.7% and improving toughness for the base by 34.43% to 48.67%.
Owner:HARBIN INST OF TECH

Method for preparing functionalized graphene and composite material of functionalized graphene

The invention discloses a method for preparing functionalized graphene and a composite material of the functionalized graphene. The method for preparing the functionalized graphene comprises the following steps of: performing Friedel-Crafts reaction on natural graphite which is taken as a raw material to obtain modified graphite, extracting, purifying, and uniformly dispersing in an organic solvent with ultrasonic to form stable graphene suspension liquid. The method for preparing the composite material comprises the following steps of: adding epoxy resin into the graphene suspension liquid, stirring for dissolving, uniformly mixing with ultrasonic, distilling under reduced pressure to remove the organic solvent to obtain a graphene/epoxy resin composite; and adding an epoxy resin curing agent, an accelerant and micrometer silver sheets sequentially, and heating for curing to obtain the composite material of a graphene polymer, namely a graphene/epoxy resin conducting composite material. The edge functionalized graphene has a high interaction between functional groups at the edge and a polymer matrix, so that the dispersion of the graphene in the polymer matrix can be promoted, the agglomeration degree can be reduced, and the interface performance of the composite material can be enhanced.
Owner:SOUTH CHINA UNIV OF TECH

Organosiloxane room temperature ionic liquid electrolyte material and its application in electrochemical power storage device

The invention provides an organosiloxane room temperature ionic liquid electrolyte material and its application in an electrochemical power storage device. The material is room temperature ionic liquid whose cationic chemical structural formula contains organosiloxane, and the cationic chemical structural formula is as represented by formula I in the specification. In the formula I, R1, R2 and R3 are selected from same or different C1-C10 alkyl groups; M is an ether chain having a structure like (CH2)nO[(CH2)mO]x(CH2)y, wherein, n and m are integers of 0 to 10, and x and y are integers of 0 to 10; R4, R5 and R6 are selected from same or different C1-C10 alkyl groups or alkyloxy groups or -O-SiR7R8R9, wherein, R7, R8 and R9 are C1-C10 alkyl groups or hydrogen, and at least one of R7, R8 and R9 is an alkyl group. The organosiloxane room temperature ionic liquid provided in the invention can be applied in lithium ion batteries as an electrolyte material or an additive; oxygen atoms of the ether chain in the cationic chemical structural formula of the ionic liquid and lithium ions Li<+> can undergo complexation, which promotes dissociation degree of lithium salt in the ionic liquid; furthermore, a cationic skeleton both contains hydrophobic organosilicon groups and hydrophilic ether (polyether) chain segments, which is favorable for improving interfacial properties of batteries.
Owner:GUANGZHOU ZHONGKE LIXIN MATERIALS TECH

Warpage resistance nylon 6 composite material for vehicle air conditioning air door and preparation method thereof

The invention discloses a warpage resistance nylon 6 composite material for a vehicle air conditioning air door and a preparation method thereof. The composite material is composed of nylon 6 chips, fiberglass, glass microballoons, compatilizer, antioxidizer, a coupling agent and a lubricating agent. The preparation method includes the following steps: (1) after being uniformly mixed, the nylon 6 chips, the compatilizer, the antioxidizer, the coupling agent and the lubricating agent are added into a double screw extruder on the first segment of a barrel, the glass microballoons are added by a side feeding machine on the fourth segment of the barrel, and the fiberglass is added by the side feeding machine on the sixth segment of the barrel; and (2) after being extruded outside, the prepared particles are dried and cooled, and finally the warpage resistance nylon 6 composite material for the vehicle air conditioning air door can be obtained. The warpage resistance nylon 6 composite material prepared by the invention has the advantages of extremely high flexural modulus, high fluidity and favorable dimension stability, solves the problem of warpage of a large finished piece caused by material shrinkage, and guarantees the assembly of the finished piece.
Owner:合诚技术股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products