Supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent and preparation method and application thereof

A cigarette smoke and polyamide technology, which is applied in the field of new cigarette smoke heavy metal polymer adsorption materials, can solve the problems of large amount of adsorbent and limited adsorption capacity, and achieve good effect, increase adsorption strength, and good heavy metal content.

Active Publication Date: 2014-01-15
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the heavy metal adsorbent for cigarette smoke in the prior art has limited adsorption capacity and large amount of adsorbent. The first purpose of the present invention is to

Method used

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  • Supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent and preparation method and application thereof
  • Supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent and preparation method and application thereof
  • Supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] (1) Preparation of the first generation (G1.0) polyamide-amine dendrimer

[0031] At 25 °C, ethylenediamine (EDA) (1.202 g, 20 mmol) was used as the nucleus of the macromolecule to react with methyl acrylate (MA) (6.88 g, 80 mmol) in 50 mL methanol solution for 72 h (the first step), After the reaction, the solution was subjected to rotary evaporation under reduced pressure at 70 °C. When the solvent was spin-dried, it was cooled to room temperature, methanol was added to the system to dissolve, and then rotary evaporation under reduced pressure was carried out at 70 °C. Repeat three times to obtain the product, Drying in vacuum at 50 °C yielded a 0.5 generation (G0.5) macromolecule with four ester functional groups at the end of the macromolecule. G0.5 (4.042g, 40mmol of ester group) was dissolved in anhydrous methanol, then, EDA (2.40g, 40mmol) was added dropwise to the system reaction system, and the mixture was reacted at room temperature for 72h...

Example Embodiment

[0033] Example 2

[0034] (1) The preparation of the first generation (G1.0) polyamide-amine dendrimer is the same as that in Example 1.

[0035] (2) Prepare 100 g of 5% first-generation (G1.0) polyamide-amine dendrimer solution with distilled water, weigh 100 g of 20-100 mesh coarse-pored silica gel, and put the polyamide-amine dendrimer solution into the solution. Slowly add it into the silica gel, stir evenly, soak it in equal volume for 2 hours to fully infiltrate it; move the wet particles into an oven, bake at 150 °C for 12 hours, make the material fully react and dry, cool to room temperature naturally, and remove by sieving Take 40-60 mesh particles from the fine powder to obtain the first generation (G1.0) polyamide-amine dendrimer adsorbent supported by silica gel.

Example Embodiment

[0036] Example 3

[0037] (1) The preparation of the first generation (G1.0) polyamide-amine dendrimer is the same as that in Example 1.

[0038] (2) Prepare 100 g of 10% first-generation (G1.0) polyamide-amine dendrimer solution with distilled water, weigh 100 g of 20-100 mesh coarse-pored silica gel, and put the polyamide-amine dendrimer solution into the solution. Slowly add it into the silica gel, stir evenly, soak it in equal volume for 2 hours to fully infiltrate it; move the wet particles into an oven, bake at 150 °C for 12 hours, make the material fully react and dry, cool to room temperature naturally, and remove by sieving Take 40-60 mesh particles from the fine powder to obtain the first generation (G1.0) polyamide-amine dendrimer adsorbent supported by silica gel.

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Abstract

The invention discloses a supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent, and a preparation method and the application thereof. The method comprises the steps that polyamide-amine dendritic macromolecule is supported on the surface of the inorganic particle through dipping and drying treatment, or the polyamide-amine dendritic macromolecule solution is directly sprayed on the surface of cellulose acetate fiber, and then moisture is equilibrated, so that the supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent is obtained. The preparation method is simple in process and easy to operate, and meets the industrial production. The prepared supported polyamide-amine dendritic macromolecule cigarette smoke heavy metal ion adsorbent has the advantages of high smoke heavy metal adsorption capacity and high adsorption capacity, and the release amount of the heavy metal in main stream smoke can be effectively reduced through slightly adding a few adsorbents in a filter stick.

Description

technical field [0001] The invention relates to a loaded polyamide-amine dendritic polymer cigarette smoke heavy metal adsorbent and its preparation method and application; it belongs to the field of novel cigarette smoke heavy metal polymer adsorption materials. Background technique [0002] Tobacco and tobacco products contain lead (Pb), arsenic (As), cadmium (Cd), chromium (Cr), mercury (Hg) and other heavy metals. During cigarette smoking, heavy metals and their compounds may be inhaled into the human body in the form of smoke aerosols or metal oxides and are easily accumulated in the human body to cause harm [Chen, Q-H. et al., Studies of Trace Elements and Health , 2005, 22, 47-49]. Heavy metals can cause many diseases and may even cause cancer. For example, heavy metal Cd can lead to high blood pressure, cause cardiovascular and cerebrovascular diseases; damage liver, kidney and bones, and cause kidney failure; Pb is a kind of heavy metal pollution with high toxicit...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30A24D3/14
Inventor 银董红文建辉成乐为秦亮生黄嘉若
Owner CHINA TOBACCO HUNAN INDAL CORP
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