{"id":43875,"date":"2024-01-12T10:37:11","date_gmt":"2024-01-12T02:37:11","guid":{"rendered":"https:\/\/www.abesmoke.com\/?p=43875"},"modified":"2024-01-13T11:59:17","modified_gmt":"2024-01-13T03:59:17","slug":"d333f75cdf","status":"publish","type":"post","link":"https:\/\/www.abesmoke.com\/en\/a\/43875","title":{"rendered":"Secrets of Electronic Cigarette Flavor: The Aerosol Chapter (Part Two)"},"content":{"rendered":"
\n

Summary\uff1a<\/p>\n

This article discusses the basic parameters of electronic cigarette aerosols, such as particle size and particle size distribution, as well as the characteristics of aerosol movement and deposition in smoking devices and the respiratory tract. Particle size distribution is typically described using D10, D50, and D90, where D50 represents the median particle size. The movement of aerosols is related to environmental temperature, gas flow rate, and other factors, while their deposition in the respiratory tract is closely related to particle size. The majority of electronic cigarette particles are below 1\u03bcm in size, and the method of inhalation (lung inhale or mouth inhale) also affects particle deposition and the effect of nicotine satisfaction.<\/p>\n

\n

\u00a0\u4e0a\u4e00\u671f\u6211\u4eec\u4e86\u89e3\u4e86\u6c14\u6eb6\u80f6\u7684\u5f62\u6210\u6f14\u53d8\u53ca\u8f93\u9001\u673a\u5236\uff0c\u4ee5\u53ca\u7535\u5b50\u70df\u6c14\u6eb6\u80f6\u7684\u6784\u6210\uff0c\u672c\u671f\u6211\u4eec\u5c06\u4ecb\u7ecd\u6c14\u6eb6\u80f6\u7684\u57fa\u672c\u53c2\u6570\u4ee5\u53ca\u6c14\u6eb6\u80f6\u5728\u70df\u5177\u53ca\u547c\u5438\u9053\u7684\u8fd0\u52a8\u548c\u6c89\u79ef\u7279\u70b9\u3002<\/span><\/span><\/p>\n

\n

Topic 2\u00a0 \u6c14\u6eb6\u80f6\u7684\u57fa\u672c\u53c2\u6570\u53ca\u8fd0\u52a8\u6c89\u79ef\u7279\u70b9<\/span><\/em><\/span><\/p>\n

\uff081\uff09\u6c14\u6eb6\u80f6\u7684\u57fa\u672c\u53c2\u6570<\/strong><\/span><\/p>\n

\u7c92\u5ea6<\/strong>\uff1a\u6c14\u6eb6\u80f6\u7c92\u5b50\u7684\u5927\u5c0f\uff0c\u53c8\u79f0\u7c92\u5f84\uff0c\u662f\u7c92\u5b50\u5927\u5c0f\u548c\u5206\u5e03\u60c5\u51b5\u7684\u6982\u79f0<\/span>\uff1b<\/span><\/p>\n

\u7c92\u5ea6\u5206\u5e03<\/strong>\uff1a\u662f\u6307\u67d0\u4e00\u7c92\u5b50\u7fa4\u4e2d\uff0c\u4e0d\u540c\u7c92\u5f84\u7684\u7c92\u5b50\u6240\u5360\u6bd4\u4f8b\uff0c<\/span>\u53c8\u79f0\u5206\u6563\u5ea6\uff1b<\/p>\n

D10\u3001D50\u3001D90<\/strong>\uff1a\u7c92\u5ea6\u5206\u5e03\u4e00\u822c\u7528\u7c92\u5ea6\u5206\u5e03\u66f2\u7ebf\u6765\u63cf\u8ff0\uff0cD\u8868\u793a\u9897\u7c92\u76f4\u5f84\uff0cD10\u3001D50\u3001D90\u5206\u522b\u4e3a\u9897\u7c92\u7d2f\u8ba1\u5206\u5e03\u8fbe\u523010%\u300150%\u300190%\u7684\u7c92\u5f84\uff0c\u5176\u4e2dD50\u4e5f\u53eb\u4e2d\u503c\u7c92\u5f84\u3002\u56fe1\u662f\u67d0\u96fe\u5316\u5668\u7684\u7c92\u5ea6\u5206\u5e03\u66f2\u7ebf\uff0cD50=0.756\u03bcm\uff0c\u8bf4\u660e\u5728\u6240\u6709\u7c92\u5f84\u7684\u9897\u7c92\u4e2d\uff0c\u5927\u4e8e\u548c\u5c0f\u4e8e0.756\u03bcm\u7684\u9897\u7c92\u5404\u536050%\u3002<\/span><\/p>\n

\"Secrets\u56fe1<\/span>\u00a0\u67d0\u96fe\u5316\u5668\u6c14\u6eb6\u80f6\u7c92\u5ea6\u5206\u5e03\u66f2\u7ebf<\/span><\/p>\n

\uff082\uff09\u6c14\u6eb6\u80f6\u7684\u8fd0\u52a8\u53ca\u6c89\u79ef\u7279\u70b9<\/strong><\/span><\/p>\n

\u6c14\u6eb6\u80f6\u5728\u70df\u5177\u5185\u90e8\u7684\u8fd0\u52a8<\/strong>\uff1a<\/p>\n

\u00a0 \u00a0 \u00a0 \u96fe\u5316\u9762\u4ea7\u751f\u7684\u96fe\u5316\u6db2\u9897\u7c92\u4e0e\u5177\u6709\u4e00\u5b9a\u901f\u5ea6\u7684\u5ba4\u6e29\u7a7a\u6c14\u76f8\u9047\uff0c\u5f62\u6210\u6c14\u6eb6\u80f6\uff0c\u7ecf\u7531\u6c14\u9053\u8fdb\u5165\u4f7f\u7528\u8005\u53e3\u8154\u3002\u56fe2\u4e3a\u67d0\u9676\u74f7\u82af\u96fe\u5316\u5668\u5185\u90e8\u6c14\u6eb6\u80f6\u8fd0\u52a8\u793a\u610f\u56fe\u3002\u6c14\u6eb6\u80f6\u5728\u8f93\u9001\u8fc7\u7a0b\u4e2d\u7684\u72b6\u6001\u53d8\u5316\u4e0e\u73af\u5883\u6e29\u5ea6\u3001\u6c14\u4f53\u6d41\u901f\u3001\u58c1\u9762\u6750\u8d28\u53ca\u7c97\u7cd9\u5ea6\u7b49\u5747\u6709\u5173\u7cfb\u3002<\/p>\n

\"Secrets<\/p>\n

\u56fe2<\/span>\u00a0\u67d0\u9676\u74f7\u82af\u96fe\u5316\u5668\u5185\u90e8\u6c14\u6eb6\u80f6\u8fd0\u52a8\u6f14\u793a<\/span><\/p>\n

\u6c14\u6eb6\u80f6\u5728\u547c\u5438\u9053\u4e2d\u7684\u6c89\u79ef<\/strong><\/strong>\uff1a<\/p>\n

\u00a0 \u00a0 \u00a0 \u6c14\u6eb6\u80f6\u5728\u4eba\u4f53\u547c\u5438\u7cfb\u7edf\u4e2d\u7684\u6c89\u79ef\u89c4\u5f8b\u4e0e\u7c92\u5f84\u606f\u606f\u76f8\u5173\uff0c\u9488\u5bf9<\/span>\u5927\u6c14\u4e2d\u5438\u5165\u7684\u9897\u7c92\uff0c<\/span>\u4e0d\u540c\u7c92\u5f84\u7684\u9897\u7c92\u5728\u547c\u5438\u7cfb\u7edf\u7684\u6c89\u79ef\u4f4d\u7f6e\u5982\u56fe3\u6240\u793a\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u5bf9\u4e8e\u7535\u5b50\u70df\u6765\u8bf4\uff0c\u7c92\u5f84\u5927\u591a\u96c6\u4e2d\u57281\u03bcm\u4ee5\u4e0b\uff0c\u53e6\u5916\u62bd\u5438\u65b9\u5f0f\u5bf9\u4e8e\u9897\u7c92\u7684\u6c89\u79ef\u5f71\u54cd\u5f88\u5927\uff0c<\/span>\u80ba\u5438<\/strong><\/span>\u65f6\uff0c\u6c14\u6eb6\u80f6\u4ee5\u8f83\u5feb\u7684\u901f\u5ea6\u901a\u8fc7\u53e3\u8154\uff0c\u90e8\u5206\u9897\u7c92\u5728\u54bd\u90e8\u6c89\u79ef\uff0c\u5f62\u6210\u51fb\u5589\u611f\uff0c\u5176\u4f59\u7c92\u5b50\u76f4\u63a5\u8fdb\u5165\u80ba\u90e8\uff0c\u6c14\u4f53\u4ea4\u6362\u540e\u7ecf\u547c\u5438\u9053\u6392\u9664\uff0c\u6b64\u65f6\u6c14\u6eb6\u80f6\u7684\u6d53\u5ea6\u76f8\u5bf9\u4e8e\u5438\u5165\u65f6\u5df2\u5927\u5e45\u964d\u4f4e\uff0c\u5bf9\u9f3b\u8154\u548c\u53e3\u8154\u611f\u53d7\u5668\u7684\u51b2\u51fb\u51cf\u5f31\uff0c\u53ef\u80fd\u964d\u4f4e<\/span>\u5bf9\u751c\u5ea6\uff0c\u9999\u5473\u53ca\u51c9\u611f\u7684\u611f\u53d7\uff1b<\/span>\u53e3\u5438<\/strong><\/span>\u65f6\uff0c\u6c14\u6eb6\u80f6\u5728\u53e3\u8154\u53ca\u9f3b\u8154\u505c\u7559\u65f6\u95f4\u8f83\u957f\uff0c\u5bf9\u820c\u9762\u53ca\u9f3b\u8154\u7684\u611f\u53d7\u5668\u51b2\u51fb\u8f83\u5f3a\uff0c\u56e0\u6b64\u5bf9\u4e8e\u751c\u5473\u7684\u9999\u5473\u7684\u611f\u53d7\u66f4\u52a0\u660e\u663e\uff1b\u9664\u6b64\u4e4b\u5916\uff0c\u76f8\u6bd4\u4e8e\u53e3\u5438\uff0c\u80ba\u5438\u8fc7\u7a0b\u5c3c\u53e4\u4e01\u4e0e\u8840\u6db2\u7684\u4ea4\u6362\u66f4\u52a0\u5145\u5206\uff0c\u56e0\u6b64\u66f4\u5177\u6709\u89e3\u763e\u6548\u679c\u3002\u5173\u4e8e\u62bd\u5438\u65b9\u5f0f\u7684\u4ecb\u7ecd\u53ef\u4ee5\u53c2\u8003Electronic Cigarette Sensory Evaluation Guide (Part 1): The Puffing Evaluation Method<\/a><\/span><\/p>\n

\"Secrets\u56fe3<\/span>\u00a0\u7c92\u5f84\u5206\u7ea7\u4e0e\u4eba\u4f53\u547c\u5438\u7cfb\u7edf\u6c89\u79ef\u4f4d\u7f6e\uff08doi:<\/span>10.13671\/j.hjkxxb.2020.0353<\/span>\uff09<\/span><\/p>\n

\n

\u672c\u671f\u4e0e\u5927\u5bb6\u4e00\u8d77\u4e86\u89e3\u4e86\u6c14\u6eb6\u80f6\u57fa\u672c\u53c2\u6570\u53ca\u8fd0\u52a8\u6c89\u79ef\u7279\u70b9\u3002<\/span><\/p>\n

\u00a0 \u00a0 \u4e0b\u4e00\u671f\u6211\u4eec\u51c6\u5907\u4e86\u201c\u6c14\u6eb6\u80f6\u4e2d\u4e0d\u540c\u7ec4\u5206\u5bf9\u53e3\u611f\u7684\u5f71\u54cd\u201d\u8bdd\u9898
\n<\/span><\/p>\n<\/div>\n

In the last issue, we learned about the formation, evolution, and transport mechanisms of aerosols, as well as the composition of electronic cigarette aerosols. In this issue, we will introduce the basic parameters of aerosols and the characteristics of aerosol movement and deposition in smoking devices and the respiratory tract.<\/p>\n

Topic 2: Basic Parameters of Aerosols and Their Movement and Deposition Characteristics<\/p>\n

(1) Basic Parameters of Aerosols<\/p>\n

Particle Size: The size of aerosol particles, also known as particle diameter, is a general term for particle size and distribution.<\/p>\n

Particle Size Distribution: This refers to the proportion of particles of different sizes within a group of particles, also known as dispersity.<\/p>\n

D10, D50, D90: Particle size distribution is generally described by a particle size distribution curve. D represents particle diameter, and D10, D50, and D90 correspond to the particle sizes at which the cumulative distribution reaches 10%, 50%, and 90%, respectively, with D50 also known as the median particle size. Figure 1 shows the particle size distribution curve of a certain atomizer, with D50=0.756\u03bcm, indicating that among all particle sizes, particles larger and smaller than 0.756\u03bcm each account for 50%.<\/p>\n

Figure 1: Particle Size Distribution Curve of a Certain Atomizer's Aerosol<\/p>\n

(2) Movement and Deposition Characteristics of Aerosols<\/p>\n

Movement of Aerosols Inside the Smoking Device:<\/p>\n

The aerosol particles produced by the atomization surface meet the room-temperature air moving at a certain speed, forming an aerosol that enters the user's mouth through the airway. Figure 2 is a schematic diagram of the movement of aerosols inside a certain ceramic core atomizer. The state changes of the aerosol during transportation are related to environmental temperature, gas flow rate, wall material, and roughness.<\/p>\n

Figure 2: Demonstration of Aerosol Movement Inside a Certain Ceramic Core Atomizer<\/p>\n

Deposition of Aerosols in the Respiratory Tract:<\/p>\n

The deposition pattern of aerosols in the human respiratory system is closely related to particle size. For particles inhaled from the atmosphere, the deposition locations of different particle sizes in the respiratory system are shown in Figure 3.<\/p>\n

For electronic cigarettes, most particles are concentrated below 1\u03bcm in size. Additionally, the method of inhalation has a significant impact on particle deposition. During lung inhale, aerosols pass through the mouth at a fast pace, with some particles depositing in the throat, creating a throat hit sensation, while the remaining particles enter the lungs directly. After gas exchange, they are expelled through the respiratory tract, by which time the aerosol concentration is significantly reduced compared to inhalation, reducing the impact on the receptors in the nose and mouth, which may decrease the perception of sweetness, fragrance, and coolness. During mouth inhale, the aerosols linger longer in the mouth and nose, causing a stronger impact on the receptors on the tongue and in the nasal cavity, thus making the taste and fragrance more pronounced. In addition, compared to mouth inhale, lung inhale allows for more efficient exchange of nicotine with the blood, therefore providing a more effective satisfaction for nicotine cravings. For an introduction to inhalation methods, please refer to the Electronic Cigarette Sensory Evaluation Guide (Part One): Evaluation Methods.<\/p>\n

Figure 3: Particle Size Classification and Deposition Locations in the Human Respiratory System (doi:10.13671\/j.hjkxxb.2020.0353)<\/p>\n

In this issue, we have explored the basic parameters of aerosols and their movement and deposition characteristics.<\/p>\n

In the next issue, we have prepared the topic \"The Impact of Different Components in Aerosols on Flavor Perception.\"<\/p>\n

 <\/p>\n

\n

\u00a0 \u00a0 \u539f\u521b\u4ea7\u54c1\uff0c\u5236\u4f5c\u4e0d\u6613\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\u3002\u611f\u8c22\u5404\u4f4d\u7684\u8ba2\u9605\u548c\u652f\u6301\uff01<\/span><\/p>\n

\u00a0 \u00a0 \u8d8a\u591a\u70b9\u8d5e\uff0c\u8d8a\u591a\u8ba2\u9605\uff0c\u8d8a\u591a\u4f18\u8d28\u5185\u5bb9~~ \u6b22\u8fce\u50ac\u66f4\uff01\uff01<\/span><\/p>\n

\u539f\u6587\u59cb\u53d1\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7\uff08\u96fe\u5316\u63a2\u79d8\uff09\uff1aSecrets of Electronic Cigarette Flavor: The Aerosol Chapter (Part Two)<\/a><\/p><\/blockquote>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u6458\u8981\uff1a \u672c\u6587\u8ba8\u8bba\u4e86\u7535\u5b50\u70df\u6c14\u6eb6\u80f6\u7684\u57fa\u672c\u53c2\u6570\uff0c\u5982\u7c92\u5ea6\u548c\u7c92\u5ea6\u5206\u5e03\uff0c\u4ee5\u53ca\u6c14\u6eb6\u80f6\u5728\u70df\u5177\u53ca\u547c\u5438\u9053\u4e2d\u7684\u8fd0\u52a8\u548c\u6c89\u79ef\u7279\u70b9\u3002\u7c92\u5ea6\u5206\u5e03\u901a\u5e38\u7528D10\u3001D50\u3001D90\u6765\u63cf\u8ff0\uff0c\u5176\u4e2dD50\u4ee3\u8868\u4e2d\u503c\u7c92\u5f84\u3002\u6c14\u6eb6\u80f6\u7684\u8fd0\u52a8\u4e0e\u73af\u5883\u6e29\u5ea6\u3001\u6c14\u4f53\u6d41\u901f …<\/p>","protected":false},"author":2,"featured_media":43876,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[3],"tags":[],"class_list":["post-43875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-t"],"jetpack_publicize_connections":[],"_links":{"self":[{"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/posts\/43875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/comments?post=43875"}],"version-history":[{"count":0,"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/posts\/43875\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/media\/43876"}],"wp:attachment":[{"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/media?parent=43875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/categories?post=43875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.abesmoke.com\/en\/wp-json\/wp\/v2\/tags?post=43875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}