A kind of graphene-plant porous composite microsphere and its preparation method and application

Abstract

The invention relates to a graphene-plant porous composite microsphere and a preparation method and application thereof, belonging to the technical field of cigarettes. In this method, spice plants are washed, removed and crushed, then placed in a vacuum freeze dryer, kept at 15-25kPa and -40-20°C for 4-8h, and then within 10-25h the temperature The temperature is raised to 10-20° C., and sieved to obtain freeze-dried porous particles of spice plants with a size range of 0.04-4 mm. The spice plant freeze-dried porous particles are mixed in proportion with the graphene material loaded with flavors and fragrances, the binder is added by the spheronization process, and the prepared microspheres are coated with a temperature-sensitive membrane material to obtain graphene-plant porous Composite microspheres. The method of the invention is simple and reliable, and the prepared product can ensure that the fragrance will not lose efficacy due to long storage time, and when added to the cigarette filter stick, the fragrance can be released more uniformly and fully when the mainstream smoke passes through.

Description

technical field [0001] The invention belongs to the technical field of cigarettes, and in particular relates to a graphene-plant porous composite microsphere and a preparation method and application thereof. Background technique [0002] Traditional cigarette consumption mainly focuses on physiological satisfaction, while modern cigarettes pay more attention to the individual characteristics of cigarette products in addition to the characteristics of traditional cigarettes. The development of cigarette brands has reached the stage of enhancing the market competitiveness of products by highlighting the style characteristics of cigarettes and improving the technical level, so as to meet the needs of different consumer groups for cigarette products. Adding flavoring to cigarettes can effectively improve the smoking quality of cigarettes and endow cigarette products with certain style characteristics. However, this method has certain shortcomings due to participation in the comb...

AI Technical Summary

Problems solved by technology

Although the currently commonly used adsorbent method and incense thread method can modify and improve to a certain extent through the volatilization of essence into the mainstream smoke when cigarettes are smoked, there is uneven release and the loss of aroma substances with the prolongation of storage time, resulting in Unstable product quality

The functional particles for cigarettes composed of polymer film wrapped and loaded with flavor are added to the cigarette filter rod, so that consumers can feel the released flavor when smoking. However, in view of the stability of the polymer film, mainstream smoke contains The film is difficult to completely rupture, so the controlled release of tobacco flavor is limited

Currently commonly used filter stick plant particles, based on the filter stick molding process and related standards, generally have a particle size range of 20-60 mesh and a moisture content of ≤ 7%. There are still certain difficulties in using it as a large-capacity fragrance carrier, and The adsorption performance of the granule itself usually competes with cigarette shreds and cigarette pack lining paper for adsorption. Simple granule flavoring has a long storage time, and functional additives or flavors and fragrances are easy to volatilize and escape, and cannot produce the expected effect, etc.