阅读说明：本技术 一种导热烟丝及其制备方法和应用 (A kind of thermally conductive pipe tobacco and its preparation method and application ) 是由 张桂兰 张振涛 刘家磊 杨鲁伟 李博 杨俊玲 于 2018-05-24 设计创作，主要内容包括：本发明涉及一种导热烟丝及其制备方法和应用。所述导热烟丝,以烟叶或烟草为基底,在所述基底表面覆有导热层；所述导热烟丝的导热系数为0.05-0.5Wm<Sup>-1</Sup>K<Sup>-1</Sup>。所述导热烟丝的制备方法为：将导热浆液通过喷涂、印刷或浸渍的方式附着在基底表面,干燥,形成导热层,即得。本发明提出的新型导热烟丝,其能够有效提高热量利用率,增加烟丝致香物质的转化和传输效率,提升加热不燃烧烟的感官舒适性。(The present invention relates to a kind of thermally conductive pipe tobaccos and its preparation method and application.The thermally conductive pipe tobacco is covered with heat-conducting layer in the substrate surface using tobacco leaf or tobacco as substrate；The thermal coefficient of the thermally conductive pipe tobacco is 0.05-0.5Wm ‑1 K ‑1 .The thermally conductive pipe tobacco the preparation method comprises the following steps: thermally conductive slurries are attached to substrate surface by way of spraying, printing or dipping, it is dry, formed heat-conducting layer to get.Novel heat-conducting pipe tobacco proposed by the present invention can effectively improve heat utilization ratio, increase the conversion and efficiency of transmission of pipe tobacco flavor matter, promote the sensory comfort for heating the cigarette that do not burn.)

1. a kind of thermally conductive pipe tobacco, which is characterized in that using tobacco leaf or tobacco as substrate, be covered with heat-conducting layer in the substrate surface；Institute The thermal coefficient for stating thermally conductive pipe tobacco is 0.05-0.5Wm^-1K^-1。

2. thermally conductive pipe tobacco according to claim 1, which is characterized in that the tobacco leaf or tobacco are chip shape.

3. thermally conductive pipe tobacco according to claim 1 or 2, which is characterized in that the load capacity of the heat-conducting layer is 10-100mg/ m²；Preferably 30-50mg/m²。

4. thermally conductive pipe tobacco according to claim 1 to 3, which is characterized in that the heat-conducting layer is made by conduction material, Or it is mixed to prepare by conduction material and adhesive component；Wherein, the conduction material, adhesive mass ratio be (0-15): 100: preferably 1:(9-11).

5. thermally conductive pipe tobacco according to claim 1 to 4, which is characterized in that the conduction material be selected from sodium metaaluminate, One of waterglass, thermally conductive carbon materials are a variety of；It is preferred that nanotube, heat-conducting polymer, thermally conductive oxide, heat conducting nano One of grain, graphene, sodium metaaluminate, waterglass are a variety of.

6. -5 any thermally conductive pipe tobacco according to claim 1, which is characterized in that it is organic that described adhesive is selected from high temperature resistant One or more of glue, preferably organic silica gel, phenolic resin glue, urea-formaldehyde resin adhesive, heatproof epoxy glue, polyimides glue.

7. a kind of preparation method of thermally conductive pipe tobacco characterized by comprising thermally conductive slurries are passed through spraying, printing or dipping Mode is attached to substrate surface, dry, forms heat-conducting layer to get thermally conductive pipe tobacco.

8. preparation method according to claim 7, which is characterized in that the thermally conductive slurries are to be dissolved in solvent by conduction material In be made, or be mixed to prepare in a solvent by conduction material, adhesive component；

Wherein, the conduction material is selected from one of sodium metaaluminate, waterglass, thermally conductive carbon materials or a variety of；It is preferred that nanometer One of pipe, heat-conducting polymer, thermally conductive oxide, heat conducting nano particle, graphene, sodium metaaluminate, waterglass are a variety of.

9. preparation method according to claim 8, which is characterized in that when conduction material is graphene, it is only necessary to which substrate is normal Normal temperature and pressure is impregnated in thermally conductive slurry, is stood；

When conduction material is sodium metaaluminate, thermally conductive slurry is the sodium metaaluminate aqueous solution of content 40%, and impregnation pressure is normal pressure- 2.5MPa, temperature are -100 DEG C of room temperature, are impregnated 0.5-10 hours；

When conduction material is waterglass, thermally conductive slurry is the sodium silicate solution of content 50%, and impregnation pressure is normal pressure- 1.5MPa, dipping temperature are -100 DEG C of room temperature, are impregnated 0.5-10 hours.

10. the thermally conductive pipe tobacco that any thermally conductive pipe tobacco of claim 1-6 or any the method for claim 7-9 obtain is more Application in functional material；The preferred antistatic tobacco material of the multifunctional material, planar heating tobacco material, sensing pipe tobacco material Material.

Technical field

The present invention relates to a kind of thermally conductive pipe tobaccos and its preparation method and application, belong to the technical field of tobacco processing.

Background technique

Electronic cigarette technology at present especially heats cigarette technology of not burning and quickly grows.Wherein, it heats and causes perfume in the cigarette that do not burn The conversion and transmission of substance depend on external heat source；If heat transfer efficiency is low, the conversion and transmission of shredded tobacco fragrant It is insufficient, result in waste of resources and heat do not burn cigarette sensory comfort it is poor.

Summary of the invention

In order to solve the above-mentioned technical problem, the present invention proposes a kind of novel heat-conducting pipe tobacco, can effectively improve heat benefit With rate, increase the conversion and efficiency of transmission of pipe tobacco flavor matter, promotes the sensory comfort for heating the cigarette that do not burn.

Technical solution of the present invention is as follows.

A kind of thermally conductive pipe tobacco is covered with heat-conducting layer in the substrate surface using tobacco leaf or tobacco as substrate.

The thermal coefficient of the thermally conductive pipe tobacco is 0.05-0.5Wm^-1K^-1, preferably 0.25-0.5Wm^-1K^-1；Such as 0.28Wm^-1K^-1、0.33Wm^-1K^-1、0.47Wm^-1K^-1。

The tobacco leaf or tobacco are preferably chip shape.

The other shapes that the heat-conducting layer is adapted in substrate surface in dotted, linear, sheet or according to the needs of use.

The heat-conducting layer can be overlying on pipe tobacco side, can also be overlying on pipe tobacco two sides.

The thickness of the heat-conducting layer can depend on the actual needs.

The load capacity of the heat-conducting layer is 10-100mg/m²；Preferably 30-50mg/m²。

The heat-conducting layer is made by conduction material, or is mixed to prepare by the components such as conduction material and adhesive；Wherein, described Conduction material, adhesive mass ratio be (0-15): 100: preferably 1:(9-11).

The conduction material is selected from one of sodium metaaluminate, waterglass, thermally conductive carbon materials or a variety of；It is preferred that nanometer One of pipe, heat-conducting polymer, thermally conductive oxide, heat conducting nano particle, graphene, sodium metaaluminate, waterglass are a variety of.

Described adhesive is selected from high temperature resistant organic gel, preferably organic silica gel, phenolic resin glue, urea-formaldehyde resin adhesive, heatproof ring One or more of oxygen glue, polyimides glue etc..

The surfactant is selected from neopelex.

The present invention also provides a kind of preparation methods of thermally conductive pipe tobacco, comprising: thermally conductive slurries are passed through spraying, printing or dipping Mode be attached to substrate surface, it is dry, form heat-conducting layer to get thermally conductive pipe tobacco.

The thermally conductive slurries are to be dissolved in solvent being made by conduction material, or existed by components such as conduction material, adhesives It is mixed to prepare in solvent.Wherein, the conduction material be selected from one of sodium metaaluminate, waterglass, thermally conductive carbon materials or It is a variety of；It is preferred that in nanotube, heat-conducting polymer, thermally conductive oxide, heat conducting nano particle, graphene, sodium metaaluminate, waterglass It is one or more.

The dip operation condition can be adjusted according to conduction material type, specifically:

When conduction material is the substances such as graphene, it is only necessary to substrate normal temperature and pressure is impregnated in thermally conductive slurry, stood；

When conduction material is the substances such as sodium metaaluminate, thermally conductive slurry is the sodium metaaluminate aqueous solution of content 40%, dipping Pressure is normal pressure -2.5MPa, and temperature is -100 DEG C of room temperature, is impregnated 0.5-10 hours；

When conduction material is waterglass, thermally conductive slurry is the sodium silicate solution of content 50%, and dipping temperature is room temperature- 100 DEG C, impregnation pressure is normal pressure -1.5MPa, is impregnated 0.5-10 hours.

The present invention also provides application of the above-mentioned thermally conductive pipe tobacco in multifunctional material；The preferred antistatic of multifunctional material Tobacco material, planar heating tobacco material, sensing tobacco material etc..

Detailed description of the invention

Fig. 1 is the structural schematic diagram of thermally conductive pipe tobacco of the present invention.

Specific embodiment

The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..