Nano tourmaline dispersion liquid and preparation method thereof

A nano-tourmaline and dispersion technology, applied in the directions of botanical equipment and methods, mixing methods, chemical instruments and methods, etc., can solve the problems of weak market competitiveness, limited scope of use, high cost, and achieve a wide adjustable range of parameters. , The effect of a wide range of use and easy operation

Pending Publication Date: 2020-12-08
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the various surface modification and dispersion technologies currently used are not mature, and the dispersion effect that can be achieved is not ideal.
Especially when dispersed in an aqueous medium, tourmaline nanoparticles cannot be stably and uniformly dispersed in an aqueous medium, and therefore cannot form a stable suspension; the dispersion of nanotourmaline is prone to demulsification, separation, layer or even solid agglomeration; instead of using some nano tourmaline dispersions, it is better to use nano tourmaline powder directly
Some nano-tourmaline dispersions can indeed achieve a better dispersion effect, but some toxic, harmful or environmentally unfriendly additives are added to limit their scope of use; or some more expensive additives are added , resulting in higher cost of the entire product and weaker market competitiveness; or the technical means are relatively cumbersome and can only be limited to small-scale production at the laboratory level.

Method used

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  • Nano tourmaline dispersion liquid and preparation method thereof
  • Nano tourmaline dispersion liquid and preparation method thereof
  • Nano tourmaline dispersion liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Based on 1 kg of the nano-tourmaline composite dispersion liquid, a dispersion liquid with a tourmaline content of 10% is prepared. The particle size of the nano-tourmaline powder used is about 30 nanometers. The raw materials and proportioning ratio are shown in the following table:

[0037]

[0038] Preparation method: Before preparation, prepare carbomer into a 1% solution for later use. During preparation, in container A, mix stearic acid and Tween-80 according to the addition amount in the table, heat to 80 degrees, stir while heating, make it fully melt, and form a uniform and transparent liquid state; at the same time, in In container B, add carbomer (1%) and sodium lauryl sulfate to water, stir to form a uniform solution, then add nano-tourmaline powder, heat to 70 degrees, and stir while heating to form a well-dispersed Slurry; then, under rapid stirring, add phase A at 80 degrees to phase B at 70 degrees, then use a high-speed homogenizer to homogenize for ...

Embodiment 2

[0041] Based on 1 kg of the nano-tourmaline composite dispersion, prepare a dispersion with a tourmaline content of 15%. The particle size of the nano-tourmaline powder used is about 30 nanometers. The raw materials and proportioning ratio are shown in the following table:

[0042]

[0043] Preparation method: Before preparation, prepare carbomer into a 1% solution for later use. During preparation, in container A, mix stearic acid and Tween-80 according to the addition amount in the table, heat to 80 degrees, stir while heating, make it fully melt, and form a uniform and transparent liquid state; at the same time, in In container B, add carbomer (1%) and sodium lauryl sulfate to water, stir to form a uniform solution, then add nano-tourmaline powder, heat to 80 degrees, and stir while heating to form a well-dispersed solution Slurry; then under rapid stirring, add phase A at 80 degrees to phase B at 80 degrees, then use a high-speed homogenizer to homogenize for 3 minutes,...

Embodiment 3

[0046] Based on 1 kg of the nano-tourmaline composite dispersion liquid, a dispersion liquid with a tourmaline content of 20% is prepared. The particle size of the nano-tourmaline powder used is about 30 nanometers. The raw materials and proportioning ratio are shown in the following table:

[0047]

[0048] Preparation method: Before preparation, prepare carbomer into a 1% solution for later use. During preparation, in container A, mix stearic acid and Tween-80 according to the addition amount in the table, heat to 90 degrees, stir while heating, make it fully melt, and form a uniform and transparent liquid; at the same time, in In container B, add carbomer (1%) and sodium lauryl sulfate to water, stir to form a uniform solution, then add nano tourmaline powder, heat to 80 degrees, stir while heating, A well-dispersed slurry is formed; then, under rapid stirring, add phase A at 90 degrees to phase B at 80 degrees, then use a high-speed homogenizer to homogenize for 4 minutes...

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Abstract

The invention discloses nano tourmaline dispersion liquid and a preparation method thereof. The preparation method comprises the following steps: mixing an oil phase component and an emulsifier in anoil phase system according to a certain addition ratio; adding a dispersion stabilizer, a surfactant and nano tourmaline powder into water according to a certain addition ratio in the water dispersionsystem, and performing mixing; respectively uniformly mixing the two phases, performing heating to a certain temperature, carrying out homogeneous mixing on the two phases under rapid stirring, and performing cooling to room temperature to form a stable emulsion dispersion system; according to the nano tourmaline composite dispersion liquid prepared by the method, the difference between the tourmaline particle size and the particle size of a nano tourmaline powder raw material is within 20%; in the dispersion liquid, the nano tourmaline particles are suspended in the solution in a monodisperse form; and after the nano tourmaline composite dispersion liquid is placed for more than 60 days, the phenomena of layering, demulsification or caking of the nano tourmaline composite dispersion liquid are avoided. Moreover, the preparation method is simple and convenient to operate, wide in parameter adjustable range, low in energy consumption, short in period and suitable for pilot scale-up andindustrial large-scale production.

Description

technical field [0001] The invention relates to a nano tourmaline dispersion liquid and a preparation method thereof, in particular to a highly stable nano tourmaline dispersion liquid and a preparation method thereof. Background technique [0002] Nanometer tourmaline is a multifunctional new inorganic material, and its particle size is about 1 to 100 nanometers. The outstanding feature of nano-scale tourmaline is that the product particles are nano-scale, and it has the dual characteristics of nano-materials and traditional tourmaline. Due to the miniaturization of crystal grains, the surface electronic structure and crystal structure change, resulting in surface effects, volume effects, quantum size effects and macroscopic tunnel effects that macroscopic objects do not have, as well as high transparency and high dispersion. [0003] Compared with traditional tourmaline products, it has large specific surface area, high chemical activity, product fineness, chemical purity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/08A61K8/04A61K8/19A61K8/36A61K8/46A61K8/49A61K8/81A61P17/10A61Q17/00A61Q19/00A61Q19/08A01N59/16A01N25/04A01P1/00A01P3/00
CPCA61K8/19A61K8/463A61K8/8147A61K8/4993A61K8/361A61K8/04A61Q19/00A61Q17/005A61Q19/08A61P17/10A01N59/16A01N25/04A61K2800/412B01F23/4105
Inventor 崔大祥邬淑红林琳
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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