STARCH-BASED COOLING MATERIAL AND APPLICATION THEREOF

Abstract

A starch-based cooling material of the invention is prepared by 8.0 to 9.0 parts of a starch, 0.5 to 1.0 part of a phase change material, and 0.5 to 1.0 a part of polyol. The starch-based cooling material of the invention is prepared by coordination of the starch, the phase change material and the polyol, wherein the phase change material has effects of absorbing and storing heat, a temperature of smoke can be significantly reduced, an effect of fast and strong cooling is realized, and a cooling effect can reach 70° C. to 120° C. All the raw materials for preparing are biodegradable materials, and a prepared heat-not-burn cigarette filter stick can be degraded after use, which is environmental friendly, and can be widely used in the field of preparing heat-not-burning cigarette products.

Claims

1. A starch-based cooling material, characterized in that, the starch-based cooling material is prepared by 5.0 to 15.0 parts of a starch, 0.2 to 5.0 parts of a phase change material, and 0.3 to 3.0 parts of a polyol.

2. The starch-based cooling material according to claim 1, characterized in that, the starch-based cooling material is prepared by 8.0 to 9.0 parts of the starch, 0.5 to 1.0 part of the phase change material, and 0.5 to 1.0 part of the polyol.

3. The starch-based cooling material according to claim 1, characterized in that, a grain size of the starch is 10 μm to 200 μm.

4. The starch-based cooling material according to claim 3, characterized in that, the grain size of the starch is 10 μm to 100 μm.

5. The starch-based cooling material according to claim 3, characterized in that, the phase change material is polylactic acid, and a molecular weight of the polylactic acid is 10,000 to 200,000.

6. The starch-based cooling material according to claim 5, characterized in that, the molecular weight of the polylactic acid is 15,000 to 100,000.

7. The starch-based cooling material according to claim 5, characterized in that, the grain size of the starch is 20 μm to 80 μm, and the molecular weight of the polylactic acid is 20,000 to 80,000.

8. The starch-based cooling material according to claim 1, characterized in that, the polyol is propylene glycol and/or glycerol.

9. A method of using the starch-based cooling material according to claim 1, comprising using the starch-based cooling material for preparing a heat-not-burn cigarette filter stick.

10. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 1.

11. A method of using the starch-based cooling material according to claim 2, comprising using the starch-based cooling material for preparing a heat-not-burn cigarette filter stick.

12. A method of using the starch-based cooling material according to claim 3, comprising using the starch-based cooling material for preparing a heat-not-burn cigarette filter stick.

13. A method of using the starch-based cooling material according to claim 5, comprising using the starch-based cooling material for preparing a heat-not-burn cigarette filter stick.

14. A method of using the starch-based cooling material according to claim 8, comprising using the starch-based cooling material for preparing a heat-not-burn cigarette filter stick.

15. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 2.

16. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 3.

17. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 4.

18. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 5.

19. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 6.

20. A heat-not-burn cigarette filter stick, characterized in that, the filter stick comprises a starch-based multi-channel unit prepared by the starch-based cooling material according to claim 7.

Description

DESCRIPTION OF THE EMBODIMENTS

[0038] The present invention will be further described below with reference to the specific embodiments, but the embodiments are not intended to limit the present invention in any form. Unless otherwise indicated, the raw material reagents employed in the present invention are conventionally purchased raw material reagents.

Embodiment 1

[0039] A starch-based cooling material, wherein the starch-based cooling material was prepared by 5.0 parts of a starch, 0.2 part of a phase change material, and 0.3 part of a polyol. The starch was corn starch, the phase change material was polylactic acid, and the polyol was glycerol.

[0040] A specific preparation process was as follows:

[0041] I) melting and mixing materials:

[0042] 1) heating and melting the polylactic acid, controlling temperature in four temperature zones: from zone 1 to zone 2, the polylactic acid was rapidly heated up to be melted, so as to reduce damages to a molecular structure in the process; from zone 2 to zone 3, the polylactic acid was slightly heated to be fully melted without decomposition; and from zone 3 to zone 4, the melt had a stable state;

[0043] 2) adding the starch: the starch was added in the temperature control zone 3, and fully mixed; and

[0044] 3) adding the polyol: the polyol was added in the temperature control zone 4;

[0045] II) extruding: twin-screw extrusion;

[0046] III) sizing in vacuum;

[0047] IV) cooling and sizing;

[0048] V) pulling; and

[0049] VI) cutting: length control.

Embodiment 2

[0050] A starch-based cooling material, wherein the starch-based cooling material was prepared by 15.0 parts of a starch, 5.0 parts of a phase change material, and 3.0 parts of a polyol. The starch was potato starch, the phase change material was polylactic acid, and the polyol was glycerol.

[0051] A specific preparation process was as follows:

[0052] I) melting and mixing materials:

[0053] 1) heating and melting the polylactic acid, controlling temperature in four temperature zones: from zone 1 to zone 2, the polylactic acid was rapidly heated up to be melted, so as to reduce damages to a molecular structure in the process; the polylactic acid was slightly heated up zone 2 to zone 3 to be fully melted without decomposition; and from zone 3 to zone 4, the melt had a stable state;

[0054] 2) adding the starch: the starch was added in the temperature control zone 3, and fully mixed; and

[0055] 3) adding the polyol: the polyol was added in the temperature control zone 4;

[0056] II) extruding: twin-screw extrusion;

[0057] III) sizing in vacuum;

[0058] IV) cooling and sizing;

[0059] V) pulling; and

[0060] VI) cutting: length control.

Embodiment 3

[0061] A starch-based cooling material, wherein the starch-based cooling material was prepared by 7.0 parts of a starch, 3.0 parts of a phase change material, and 2.0 parts of a polyol. The starch was potato starch, the phase change material was polylactic acid, and the polyol was glycerol.

[0062] A specific preparation process was as follows:

[0063] I) melting and mixing materials:

[0064] 1) heating and melting the polylactic acid, controlling temperature in four temperature zones: from zone 1 to zone 2, the polylactic acid was rapidly heated up to be melted, so as to reduce damages to a molecular structure in the process; from zone 2 to zone 3, the polylactic acid was slightly heated up to be fully melted without decomposition; and from zone 3 to zone 4, the melt had a stable state;

[0065] 2) adding the starch: the starch was added in the temperature control zone 3, and fully mixing; and

[0066] 3) adding the polyol: the polyol was added in the temperature control zone 4;

[0067] II) extruding: twin-screw extrusion;

[0068] III) sizing in vacuum;

[0069] IV) cooling and sizing;

[0070] V) pulling; and

[0071] VI) cutting: length control.

Embodiment 4

[0072] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 1.0 part of a phase change material, and 1.0 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 10 μm, and a molecular weight of the polylactic acid was 15,000.

Embodiment 5

[0073] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 1.0 part of a phase change material, and 0.8 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 100 μm, and a molecular weight of the polylactic acid was 200,000.

Embodiment 6

[0074] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 0.8 part of a phase change material, and 0.8 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 20 μm, and a molecular weight of the polylactic acid was 50,000.

Embodiment 7

[0075] A starch-based cooling material, wherein the starch-based cooling material was prepared by 9.0 parts of a starch, 0.8 part of a phase change material, and 0.8 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 80 μm, and a molecular weight of the polylactic acid was 30,000.

Embodiment 8

[0076] A starch-based cooling material, wherein the starch-based cooling material was prepared by 9.0 parts of a starch, 0.6 part of a phase change material, and 0.6 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 30,000.

Embodiment 9

[0077] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 0.8 part of a phase change material, and 0.8 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 50,000.

Embodiment 10

[0078] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 0.6 part of a phase change material, and 0.6 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 50,000.

Comparative Example 1

[0079] A starch-based cooling material, wherein the starch-based cooling material was prepared by 20 parts of a starch, 6 parts of a phase change material, and 5 parts of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 50,000.

Comparative Example 2

[0080] A starch-based cooling material, wherein the starch-based cooling material was prepared by 4 parts of a starch, 0.1 part of a phase change material, and 0.2 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 50,000.

Comparative Example 3

[0081] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 0.5 part of a phase change material, and 4.0 parts of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 50,000.

Comparative Example 4

[0082] A starch-based cooling material, wherein the starch-based cooling material was prepared by 8.0 parts of a starch, 0.5 part of a phase change material, and 0.1 part of a polyol. The starch was potato starch, the phase change material was polylactic acid, the polyol was glycerol, a grain size of the starch was 30 μm, and a molecular weight of the polylactic acid was 50,000.

Comparative Example 5

[0083] A phase change cooling material, wherein the phase change material was polylactic acid, and a molecular weight of the polylactic acid was 50,000.

[0084] Result Detection

[0085] (1) Cooling Effect Detection

[0086] The starch-based cooling materials prepared in Embodiments 1 to 10 and Comparative Examples 1 to 4 were prepared into the corresponding heat-not-burn cigarette filter sticks. The filter stick included a cooling material section and an acetate fiber section. The corresponding filter sticks were applied to the heat-not-burn cigarettes, temperatures at both ends of the cooling materials were detected, and related temperature differences were recorded, which were the cooling effects. A length of the cooling material section was 23 mm, and a length of the acetate fiber section was 7 mm. A smoke amount was tested by a weight reduction method with reference to ISO standard smoking method, i.e. 35 ml/2 s/30 s. After smoking seven cigarettes, a mass difference before and after smoking was calculated, and a mean value of three cigarettes was taken to obtain the value of the smoke amount, and the test results of each embodiment were divided by the results of Comparative Example 5 to get the relative value of the smoke amount.

[0087] The test results were as shown in Table 1.

TABLE-US-00001 TABLE 1 Serial number Cooling effect/° C. Smoke amount ratio Embodiment 1 70 1.20 Embodiment 2 75 1.23 Embodiment 3 95 1.25 Embodiment 4 90 1.28 Embodiment 5 88 1.30 Embodiment 6 120 1.35 Embodiment 7 115 1.30 Embodiment 8 110 1.34 Embodiment 9 114 1.36 Embodiment 10 118 1.29 Comparative Example 1 65 1.30 Comparative Example 2 60 1.27 Comparative Example 3 50 1.30 Comparative Example 4 55 1.35 Comparative Example 5 68 1.00

[0088] It can be seen from the data in Table 1 above that the cooling effect of the starch-based cooling material according to the present invention is all above 70° C., and the starch-based cooling material has a good cooling effect. It can be seen from the Comparative Examples that the single polylactic acid material can only achieve a cooling effect of about 68° C., which cannot achieve the strong cooling effect of the present invention, and other specific solutions which are not within the scope of protection of each constituent of the present invention cannot achieve the cooling value of the present invention. It follows that the technical solutions of the present invention have obvious beneficial effects.

[0089] (2) Sensory Evaluation of Smoking

[0090] Detection Method:

[0091] The test results were as shown in Table 2.

TABLE-US-00002 TABLE 2 Serial number Sensory evaluation of smoking Embodiment 1 8.5 Embodiment 2 8.0 Embodiment 3 8.5 Embodiment 4 8.5 Embodiment 5 8.0 Embodiment 6 9.5 Embodiment 7 9.0 Embodiment 8 9.0 Embodiment 9 9.0 Embodiment 10 9.5 Comparative Example 1 7.0 Comparative Example 2 7.5 Comparative Example 3 7.5 Comparative Example 4 7.0 Comparative Example 5 7.5

[0092] It can be seen from the data in Table 2 above that the sensory evaluation of smoking of the starch-based cooling material according to the present invention is all above 8.0, which can effectively reduce the interception of aroma constituents in the cigarette smoke, ensure the content of the aroma substances in the smoke during smoking, and improve the smoking sensory quality. It can be seen from the Comparative Examples that the smoking score of the single polylactic acid material is only 7.5, which cannot achieve the effect of the present invention, and other specific solutions which are not within the scope of protection of each constituent of the present invention cannot achieve the score of the sensory evaluation of smoking of the present invention. It also follows that the technical solutions of the present invention have obvious beneficial effects.

[0093] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, but are not intended to limit the implementations of the present invention. For those of ordinary skills in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary or possible to exhaust all the implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall all fall within the scope of protection claimed by the present invention.