An adsorbent for reducing the release of crotonaldehyde in mainstream cigarette smoke

Abstract

The invention belongs to the technical field of cigarette production, and in particular relates to an adsorbent for reducing the release of crotonaldehyde in mainstream smoke of cigarettes. The adsorbent is a molecular sieve-polyethersulfone composite material, and the specific preparation steps include the steps of preparing microporous-mesoporous molecular sieve SBA-15, mixing with PES and NMP to prepare spinning solution, fiber spinning and the like. The molecular sieve-polyethersulfone composite fiber material provided by the present invention has a loose and porous surface, and contains a large number of micropores, mesopores, and macropores, which is conducive to improving the adsorption active sites and the transmission efficiency of the adsorbed substances; using it After the composite filter is prepared in the cigarette filter, it can reduce the release of crotonaldehyde by about 1 / 4~1 / 3, effectively reducing the release of crotonaldehyde in the mainstream smoke of cigarettes. It has good promotion and application value.

Description

technical field [0001] The invention belongs to the technical field of cigarette production, and in particular relates to an adsorbent for reducing the release of crotonaldehyde in mainstream smoke of cigarettes. Background technique [0002] Tobacco is one of the important economic crops in our country and occupies an important position in the national economy. However, as people pay more and more attention to health, the smoking safety of cigarettes has become a research hotspot in recent years, which has attracted great attention from governments all over the world. [0003] Crotonaldehyde is an important harmful substance in the mainstream smoke of cigarettes. It is included in the list of 46 harmful ingredients of the Canadian government and the list of controlled ingredients recommended by the WHO "Tobacco Product Regulation Research Group". The State Tobacco Monopoly Administration of China also regards crotonaldehyde as One of the seven harmful ingredients used to e...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, in order to reduce the release of harmful components in the mainstream smoke of cigarettes, it is usually carried out from many aspects such as filter tip processing and tobacco pretreatment, among which the development of new materials with adsorption and decomposition functions is also one of the commonly used harm reduction measures , but due to the long development cycle and certain variability of new harm-reducing and tar-reducing materials, it is difficult, especially for the harm-reducing adsorption materials that reduce the release of crotonaldehyde in mainstream cigarette smoke. Further in-depth research

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