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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 provide an active group with high density, which has a strong adsorption capacity for heavy metals in smoke , a loaded polyamide-amine dendritic polymer adsorbent for heavy metals in cigarette smoke with large adsorption capacity

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

Embodiment 1

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

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

Embodiment 2

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

[0035] (2) Prepare 100g of 5% first-generation (G1.0) polyamide-amine dendrimer solution with distilled water, weigh 100g of 20-100 mesh coarse-pore silica gel, and mix the polyamide-amine dendrimer solution Slowly add to the silica gel, stir evenly at the same time, immerse in equal volume for 2 hours to fully infiltrate; move the wet particles into the oven, bake at 150°C for 12 hours, make the material fully react and dry, cool naturally to room temperature, and sieve to remove The fine powder is 40-60 mesh particles to obtain the first-generation (G1.0) polyamide-amine dendrimer adsorbent loaded on silica gel.

Embodiment 3

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

[0038] (2) Prepare 100g of 10% first-generation (G1.0) polyamide-amine dendrimer solution with distilled water, weigh 100g of 20-100 mesh coarse-pore silica gel, and mix the polyamide-amine dendrimer solution Slowly add to the silica gel, stir evenly at the same time, immerse in equal volume for 2 hours to fully infiltrate; move the wet particles into the oven, bake at 150°C for 12 hours, make the material fully react and dry, cool naturally to room temperature, and sieve to remove The fine powder is 40-60 mesh particles to obtain the first-generation (G1.0) polyamide-amine dendrimer adsorbent loaded on 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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