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PDGA resin and preparation method and application thereof

A resin and reaction technology, applied in the field of cigarette harm reduction additive materials, can solve the problems of poor selectivity of adsorbents, increased cost, complicated processes, etc., and achieve the effect of reducing the release amount

Active Publication Date: 2016-01-27
NANTONG CELLULOSE FIBERS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, as cigarette filter additives, the above-mentioned adsorbents still have the following problems in use: 1) The selectivity of the adsorbent is poor, which destroys the original aroma composition of the smoke; 2) It is difficult for a single adsorbent to simultaneously remove a variety of Harmful substances lead to complex processes and increased costs; 3) As natural plant active ingredients, they have peculiar smells themselves, and adding them to cigarettes will affect the aroma of cigarettes; 4) High prices will increase the cost of cigarettes and are not easily accepted by tobacco companies
[0017] According to the existing literature reports, the adsorption resin has played an important role in the removal of harmful substances in smoke, but there are also obvious limitations

Method used

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  • PDGA resin and preparation method and application thereof
  • PDGA resin and preparation method and application thereof
  • PDGA resin and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] (1) Dissolve 5g of polyvinyl alcohol and 22.5g of sodium chloride in 422.5g of water in a 1L three-necked bottle, and make an aqueous solution to obtain the aqueous phase of suspension polymerization (wherein the concentration of polyvinyl alcohol in the aqueous phase is 1.1wt%, chlorination The concentration of sodium is 5wt%), and heated to 40 ° C;

[0059] In addition, 32g polymerized monomer DVB (purity 55%, wt%), 16g polymerized monomer GMA (the mass ratio of DVB and GMA is 2), mixed porogen 24g toluene and 24g n-heptane (toluene and long-chain alkanes normal The mass ratio of heptane is 1, the mass ratio of mixed porogen and total polymerized monomer is 1), 1.0g initiator azobisisobutyronitrile (AIBN) (initiator accounts for 2.1wt% of total polymerized monomer quality ) after mixing evenly to obtain the oil phase of the suspension polymerization reaction, add the oil phase to the above water phase (the mass ratio of the water phase to the oil phase is 4.6), start ...

Embodiment 2

[0064] (1) 2.5g polyvinyl alcohol and 13.5g sodium chloride are dissolved in 434.0g water in 1L there-necked bottle, are made into aqueous solution and obtain the water phase of suspension polymerization (wherein the concentration of polyvinyl alcohol in water phase is 0.55wt%, chlorine The concentration of NaCl is 3wt%), and heated to 35°C;

[0065] In addition, 45gDVB (purity 55%, wt%) and 5gGMA (the mass ratio of DVB and GMA is 9), 34g toluene and 66g n-heptane (the mass ratio of toluene and long-chain alkane n-heptane is 1:1.9, mixed to The mass ratio of pore agent and total polymerized monomer is 2), after 0.75g benzoyl peroxide (BPO) (initiator accounts for 1.5%wt of total polymerized monomer quality) mixes homogeneously, obtain the oily phase of suspension polymerization reaction, Add the oil phase to the water phase (the mass ratio of the water phase to the oil phase is 3), and simultaneously raise the temperature of the reaction system to 78° C. for 3 hours, then rais...

Embodiment 3

[0070] (1) 22.5g polyvinyl alcohol and 45g sodium chloride are dissolved in 1432.5g water in 3L there-necked bottle, are made into aqueous solution and obtain the water phase of suspension polymerization (wherein the concentration of polyvinyl alcohol in the water phase is 1.5wt%, chlorination The sodium concentration was 3 wt%) and heated to 45°C.

[0071] With 140.4gDVB (purity 78.4%, wt%), 47.1gGMA (the mass ratio of DVB and GMA is 3), 125.1g toluene and 62.4g200 # Gasoline (toluene and long chain alkanes 200 # The mass ratio of gasoline is 2:1, the mass ratio of mixed porogen and total polymerized monomer is 1), 3.75g azobisisobutyronitrile (AIBN) (initiator accounts for 2wt% of total polymerized monomer mass) mixed Obtain the oil phase of the suspension polymerization reaction after uniformity, add the oil phase to the above-mentioned water phase (the mass ratio of the water phase to the oil phase is 4), start stirring, and simultaneously raise the temperature of the rea...

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Abstract

The present invention belongs to the field of cigarette harm reduction addition materials, and relates to a PDGA resin and a preparation method and application thereof. The PDGA resin is prepared by amination after copolymerization of divinylbenzene and glycidyl methacrylate (GMA) The resin regulates resin skeleton polarity on the one hand, and on the other hand the resin amination reaction is simplified due to the good reaction ability of epoxy functional groups, so that the synthetic resin both has a porous weakly polar skeleton and high content amine functional groups, a variety of harmful substances such as HCN, aldehydes and phenols and the like in cigarettes can be simultaneously removed, HCN emission maximum decreasing range is nearly 65%, formaldehyde emission maximum decreasing range is 81%, acetaldehyde emission maximum decreasing range is 42%, acrolein emission maximum decreasing range is 52%, crotonaldehyde emission maximum decreasing range is 44%, phenol emission maximum decreasing range is 24%, the resin synthesis process is simple, and the resin is suitable for large-scale industrial production, and has a good practical application prospect in selective removal of harmful substances in cigarette smoke.

Description

technical field [0001] The invention belongs to the field of additive materials for reducing harm to cigarettes, and relates to a PDGA resin (a copolymer resin of amino-functionalized divinylbenzene (DVB) and glycidyl methacrylate (GMA)) and a preparation method and application thereof. Background technique [0002] Smoking and health have attracted worldwide attention, and reducing the release of harmful components in cigarette smoke is one of the main challenges facing the tobacco industry in the process of progress. [0003] Cigarette smoke is an extremely complex mixed system produced by incomplete combustion of tobacco, of which about 99.4% of the components are harmless to the human body, and only about 0.6% of the components are harmful to the human body, but only this 0.6% of the components contain Gas-phase free radicals, hydrocyanic acid, carbon monoxide, nitrogen oxides, vinyl chloride, pyridine, ammonia, volatile aldehydes, volatile nitrosamines, phenols, benzopy...

Claims

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Application Information

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IPC IPC(8): C08F212/36C08F220/32C08F8/32A24D3/14
Inventor 王林富宋晓梅曹建华彭为骏张杰
Owner NANTONG CELLULOSE FIBERS CO LTD
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