Unlock instant, AI-driven research and patent intelligence for your innovation.
Preparation method of nano hydroxyapatite/polydiallyldimethyl ammonium chloride/silica gel composite material
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 polydiallyl dimethyl ammonium chloride, nano-hydroxyapatite technology, applied in chemical instruments and methods, analytical materials, separation methods, etc. Use and other issues to achieve the effect that the operating conditions are easy to master, avoid easy loss, and achieve ideal results
Active Publication Date: 2018-05-29
UNIV OF SCI & TECH LIAONING
View PDF7 Cites 0 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
However, due to the fine particles of a single nanomaterial, it is easy to lose activity, coagulate, and settle in aqueous solution, and it is difficult to recycle and reuse, thus limiting the application of nanomaterials.
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
Embodiment 1
[0025] A preparation method of nano-hydroxyapatite / polydiallyl dimethyl ammonium chloride / silica gel composite material, the composite material is that nano-hydroxyapatite is chlorinated by cationic polydiallyl dimethyl A ternary composite material prepared by ammonium polymer loaded on silica gel, the preparation method specifically includes the following steps:
[0026] Specifically include the following steps:
[0027] 1) Silica gel activation: Weigh 10.0g of silica gel with a particle size of 80-100 mesh and put it into a 100mL beaker, add 60mL of 2.5mol / L nitric acid solution, seal it after stirring for 30min, soak for 14h, filter, and wash with deionized water until medium properties, dry at 150°C for 4 hours.
[0028] 2) Weigh 0.2000 g of the above silica gel and put it into a 10 mL centrifuge tube, add 10 mL of polydiallyldimethylammonium chloride solution with a concentration of 2.0%, shake well, and oscillate ultrasonically for 10 min.
[0029] 3) Weigh 0.0200g of ...
Embodiment 2
[0031] A preparation method of nano-hydroxyapatite / polydiallyldimethylammonium chloride / silica gel composite material, specifically comprising the following steps:
[0032] 1) Weigh 0.2000 g of the silica gel prepared in Example 1 and put it into a 10 mL centrifuge tube, add 10 mL of polydiallyldimethylammonium chloride solution with a concentration of 3.0%, shake well, and oscillate ultrasonically for 10 min.
[0033] 2) Put 0.0200g nano-hydroxyapatite with a particle size of 20-50nm in a mass ratio of 1:10 to silica gel into a centrifuge tube, shake well, oscillate ultrasonically for 12 minutes, centrifuge for 20 minutes, and the speed of the centrifuge is 8000 rpm minutes, and dried in a vacuum oven at 70°C for 14 hours. A composite material is obtained.
Embodiment 3
[0035] A preparation method of nano-hydroxyapatite / polydiallyldimethylammonium chloride / silica gel composite material, specifically comprising the following steps:
[0036] 1) Weigh 0.2000 g of the silica gel prepared in Example 1 and put it into a 10 mL centrifuge tube, add 10 mL of polydiallyldimethylammonium chloride solution with a concentration of 1.0%, shake well and ultrasonically shake for 10 h.
[0037] 2) Put 0.0200g nano-hydroxyapatite with a particle size of 20-50nm in a mass ratio of 1:10 to silica gel into a centrifuge tube, shake well, oscillate ultrasonically for 10min, centrifuge for 25min, and dry in a vacuum oven at 70°C for 14h . A composite material is obtained.
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
Particle size
aaaaa
aaaaa
Particle size
aaaaa
aaaaa
Login to View More
Abstract
The invention relates to a preparation method of a nano hydroxyapatite / polydiallyldimethyl ammoniumchloride / silica gelcomposite material. The composite material is a ternary composite material prepared by loading nano hydroxyapatite on a silica gel through cationic polydiallyldimethyl ammoniumchloridepolymer. The preparation method comprises the following steps: firstly, activating silica gel,then putting 0.1000-0.8000g of the activated silica gel into 10ml of a polydiallyldimethyl ammoniumchloride solution with a concentration of 1.0-3.0%, shaking up the materials, carrying out ultrasonic concussion, putting a certain amount of nano hydroxyapatite and silica gel into a centrifugal tube according to a mass ratio of 1-5 to 1-40, shaking up the materials, carrying out ultrasonic concussion and centrifuging, and carrying out drying through a vacuum drying oven to obtain the composite material. The composite material is used as a solid phase extraction material, has an ideal effect of enriching trace heavy metalchromium in water, and can be reused for at least 20 times. The adsorption efficiency is higher than that of single nano hydroxyapatite. The problem that adsorbing materials are difficult to recycle is solved. At the same time, the defects of easy loss and easy blockage of pipelines of a single nano material in use are avoided.
Description
technical field [0001] The invention relates to a solid-phase extraction material and its preparation method and application, in particular to a preparation method of nano-hydroxyapatite / polydiallyldimethylammonium chloride / silica gel composite material. Background technique [0002] Before the detection of trace heavy metals in water, it is often necessary to use various separation and enrichment techniques to increase the content of trace components in water. Solid phase extraction is an effective and most commonly used sample pretreatment technique. It has been widely used in the separation and enrichment of heavy metals in environmental water samples because of its relatively high enrichment factor, good selectivity, ability to handle small volume samples, reusable enrichment materials, simple operation, and easy automation. concentrated. However, there are still some problems in the practical application of solid phase extraction technology, such as the chemical pollu...
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