Process for slowing down settlement of nano-suspension and product and application of nano-suspension

A nano-suspension and process technology, applied in the fields of application, alkali metal oxide/hydroxide, inorganic chemistry, etc., can solve the problems affecting cigarettes, reducing harm and reducing coke, etc., to prolong the effective use time and increase the ultrasonic vibration Dispersion method, high energy effect

Active Publication Date: 2018-03-09
SHANGHAI TOBACCO GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production of special filter rods, it often takes a long time for the nano-suspension to be added to the filter rod from the completion of the preparation. It is very important to keep the nano-suspension from stratification, sedimentation and uniform distribution, which will directly affect the harm reduction of cigarettes Defocus Effect and Cigarette Flavor

Method used

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  • Process for slowing down settlement of nano-suspension and product and application of nano-suspension
  • Process for slowing down settlement of nano-suspension and product and application of nano-suspension

Examples

Experimental program
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Embodiment 1

[0029] Embodiment 1: in reaction tank, add nano particle adsorption material (nanoscale SiO 2 Particles, particle size is 100) 0.3kg (particle size 350 mesh) and 3.3kg triacetin, stirred with a glass rod for 5min to form a solution, then transferred to a high-speed stirrer, stirred and dispersed at a speed of 9000r / min 10 minutes, without adding the nanomaterial dispersant mixture and ultrasonic dispersion steps, and the solution can be used after it is stable.

Embodiment 2

[0030] Embodiment 2: in reaction tank, add respectively nanomaterial dispersant mixed solution 0.24kg (particle diameter 400 orders), nanoparticle adsorption material (nanoscale SiO 2 Particles (particle size: 100 mesh) 0.3kg and glyceryl triacetate 3.3kg, mixed with a glass rod for 3 minutes to form a solution, then transferred to a high-speed mixer, stirred and dispersed at a speed of 10000r / min for 10 minutes, without ultrasonic dispersion Steps, the solution can be used after it is stable.

[0031] The nanomaterial dispersant mixed solution includes the following components: polyethylene glycol 0.7Kg, glycerin 0.8Kg, propylene glycol 0.6Kg, and the average relative molecular weight of polyethylene glycol is 600.

Embodiment 3

[0032] Embodiment 3: The pretreatment stage is the same as that of Embodiment 2. After stirring at a high speed for 10 minutes, the mixed solution is transferred to an ultrasonic container, the frequency of the ultrasonic wave is 40KHz, the ultrasonic power is modulated to 30% of the total power, and the ultrasonic time is 10 min.

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Abstract

The invention provides a process for slowing down settlement of a nano-suspension and a product and application of the nano-suspension. The process for slowing down settlement of the nano-suspension comprises the following steps: (1) adding a nano-adsorption granular material and a nano-material dispersant mixed solution to glycerol triacetate and stirring; (2) transferring to a high-speed stirrerand stirring; (3) transferring to an ultrasonic dispersion instrument to be ultrasonically dispersed. The traditional production process is optimized by using the process disclosed by the invention,so that the settlement rate of the prepared nano-suspension for a cigarette filter rod is greatly lowered, thereby being conducive to reducing the harmful degree of cigarettes.

Description

technical field [0001] The invention relates to a process for slowing down the sedimentation of nano-suspension liquid for cigarette filter rods, its products and applications. Background technique [0002] As a new technology with great application potential, nanoscience has great development potential in today's society. In recent years, scientific research institutions at home and abroad have invested a lot of money in related research work. Due to the special morphological structure of nanomaterials, they have many physical and chemical properties different from traditional materials, such as showing different properties in many aspects such as melting point, vapor pressure, optics, chemistry and magnetism. An important application of nanomaterials is adsorption, which has the characteristic of absorbing the retention of specific substances. As we all know, cigarettes will produce a large amount of harmful substances during combustion, and nanomaterials can play a cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/10A24D3/16
CPCA24D3/166B01J20/103B01J20/28016
Inventor 叶惠民张建超卢琳朱彬
Owner SHANGHAI TOBACCO GRP CO LTD
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