Preparation method of amino-modified graphene oxide composite positive permeable film
A technology of graphene compounding and amino modification, applied in chemical instruments and methods, semi-permeable membrane separation, membrane technology, etc., can solve the problems of high salt permeation flux, poor mechanical strength, and low pure water permeation flux, etc. Achieve the effects of good chemical stability, high mechanical strength, and slow membrane fouling
Inactive Publication Date: 2014-06-18
DONGHUA UNIV
3 Cites 26 Cited by
AI-Extracted Technical Summary
Problems solved by technology
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreAbstract
The invention provides a preparation method of an amino-modified graphene oxide composite positive permeable film. The method is characterized by comprising the following specific steps: mixing graphene oxide, dimethyl formamide, organic amine and dicyclohexyl carbimide, and performing ultrasonic treatment; reacting for 40-50 hours at the temperature of 100-150 DEG C; adding absolute ethyl alcohol, and standing and filtering to obtain a precipitate; washing and drying the precipitate to obtain amino-modified graphene oxide; mixing the amino-modified graphene oxide with a solvent, performing ultrasonic treatment, and adding an additive and a film formation polymer into a mixed solution to prepare a casting film solution; de-foaming to prepare a base film through a phase inversion method, and immersing the base film in pure water for later use; and pouring a metaphenylene diamine solution and trimesoyl chloride to the surface of the base film, performing a contact reaction, washing the surface of the film with an organic solvent, and drying the film to obtain the amino-modified graphene oxide composite positive permeable film. The amino-modified graphene oxide composite positive permeable film is high in mechanical strength, high in chemical stability, large in permeation flux of the pure water, and high in salt rejection rate.
Application Domain
Technology Topic
Examples
- Experimental program(2)
Example Embodiment
Example Embodiment
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Property | Measurement | Unit |
Thickness | 0.8 ~ 1.2 | nm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Similar technology patents
Polarizer Protective Film, Polarizing Plate, and Image Display Apparatus
InactiveUS20090153965A1High mechanical strengthExcellent optical propertiesPolarising elementsPolarizerProduction rate
Owner:NIPPON SHOKUBAI CO LTD +1
Polyolefin Microporous Membrane
InactiveUS20080193833A1Excellent permeabilityHigh mechanical strengthSynthetic resin layered productsCell component detailsPolyolefinSurface layer
Owner:ASAHI KASEI CHEM CORP
Super-hydrophobic super-lipophilic emulsion separating mesh membrane, and production method and application thereof
InactiveCN104826363AHas the effect of demulsification and separationHigh mechanical strengthNon-miscible liquid separationChemistryNon toxicity
Owner:TSINGHUA UNIV
Catalyst composition preparation and use
ActiveUS7544285B2High mechanical strengthHigh activityOther chemical processesCatalyst activation/preparationNon noble metalAluminium
Owner:SHELL OIL CO
Super hydrophobic-supper lipophilic polymer porous film, preparation method and application thereof
ActiveCN102794113AHigh mechanical strengthEfficient separationSemi-permeable membranesWater/sewage treatment bu osmosis/dialysisPolymer chemistryIndustrial Oils
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Classification and recommendation of technical efficacy words
- High mechanical strength
- Good chemical stability
Downhole chemical delivery system for oil and gas wells
Owner:TECHNISAND
Polymer compound and method of synthesizing the same
ActiveUS20090124763A1High mechanical strengthGood moldabilityThin material handlingPolymer chemistryFlexural strength
Owner:CANON KK
In situ forming hydrogels
InactiveUS6858229B1High mechanical strengthPowder deliveryMacromolecular non-active ingredientsChemistry
Owner:CALIFORNIA INST OF TECH
Organic el apparatus, method of manufacturing organic el apparatus, electronic apparatus
ActiveUS20100244005A1High mechanical strengthExcellent heat releasing performanceSolid-state devicesLaminationEngineeringSurface plate
Owner:SEIKO EPSON CORP
Uniform, disposable, interface for multi-element probe
InactiveUS7162291B1High mechanical strengthAffecting conductivityDiagnostic recording/measuringSensorsBiomedical engineeringMulti element
Owner:TRANSSCAN MEDICAL