Method for stably dispersing metal oxide nanoparticles in aqueous phase
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of nanoparticles and oxides, which is applied in chemical instruments and methods, preparation of oxides/hydroxides, oxygen/ozone/oxides/hydroxides, etc., can solve the difficulty of dispersing and cleaning metal oxide nanoparticles, disperse Poor stability, irritating to the human body and other problems, to achieve the effect of long-term storage, high stability and low cost
Inactive Publication Date: 2017-11-07
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF3 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0007] In view of the above existing problems or deficiencies, in order to solve the problems of difficulty in dispersing and cleaning metal oxide nanoparticles, high cost, p
Method used
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 more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Example Embodiment
[0021] The present invention will be further described in detail below in conjunction with embodiments and drawings.
[0022] Step 1: Weigh 0.3 g of nanocellulose with a diameter of 4-10 nm and a length of 1000-3000 nm, and 50 g of deionized water, and put them into a beaker with a capacity of 100 ml. Add a magnetic stir bar, close the mouth of the beaker, place it on the magnetic stirrer and start stirring. The stirring rate is 800 revolutions / min, and the stirring time is 10 minutes. Then it is placed on a centrifuge, centrifuged at 3000 rpm for 2 minutes to prepare a dispersion with a nanocellulose content of 0.3% by weight, for use;
[0023] Step 2: Weigh 1g of titanium dioxide nanoparticles with a particle size of 5-100nm and 50g of deionized water, add them to a 100ml beaker, assemble on a high-speed mixer and stir at a stirring rate of 1000 rpm and a stirring time of 10 minutes to obtain Preliminary dispersion of titanium dioxide aqueous dispersion;
[0024] Step 3: Add 50m...
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
Login to view more
Abstract
The invention belongs to applications of nanomaterials in fields of chemical engineering and food, and particularly relates to a method for stably dispersing metal oxide nanoparticles in an aqueous phase. CNF (cellulose nanofiber) is taken as a dispersion aid for dispersing the metal oxide nanoparticles. The method is simple and convenient to operate, low in cost, green and pollution-free, a dispersion solution of the metal oxide nanoparticles prepared with the method has good dispersibility and high stability, subsequent use and long-term storage of the dispersion solution are facilitated, usage efficiency of the metal oxide nanoparticles is improved, and application fields of the metal oxide nanoparticles are further broadened.
Description
technical field [0001] The invention belongs to the application of nanometer materials in the fields of chemical industry and food, and in particular relates to a method for stably dispersing metal oxide nanoparticles in an aqueous phase. Background technique [0002] Nanomaterials have special mechanical, electrical, magnetic, optical, and chemical properties due to nanoscale effects, surface effects, and quantum size effects. Metal oxide nanoparticles are a class of nanomaterials with a wide range of uses, and have broad application value and prospects in the fields of chemical industry, electronics, food, biology, and medicine. [0003] For example, nano-titanium dioxide particles have very valuable optical properties, high chemical stability, thermal stability, non-toxicity, superhydrophilicity, and non-migration, and are widely used in the automotive field, anti-ultraviolet materials, textiles, and photocatalysts. , sunscreen, paint, paper industry, etc.; nano-zinc oxi...
Claims
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
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more