| 第 52 卷第 5 期 |  | Vol. 52 No. 5 | | 2022 年 10 月 | Oct 2022 |
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所屬欄目：功能材料
聚乙烯醇基復合調濕材料的制備及其對卷煙濕度的調節性能 |
| 朱哲文1，王學(xué)瑞2，羅 瑋1，王 亮1，吳名劍1，謝國勇1，銀董紅1*，黃健涵2
（1. 湖南中煙工業(yè)有限責任公司，湖南 長(cháng)沙 410000；2. 中南大學(xué) 化學(xué)化工學(xué)院，湖南 長(cháng)沙 410083） |
| 摘 要：用聚丙烯酸、硅藻土和CaCl2對聚乙烯醇化學(xué)改性，制備了聚乙烯醇基復合調濕材料。結果表明，聚丙烯酸對聚乙烯醇微交聯(lián)后材料的疏水性增加，CaCl2改性后材料的親水性隨CaCl2的加入而增加。調節不同分子量PVA的比例能有效減少材料的發(fā)粘現象。在相對濕度為30%~80%條件下放置24 h，煙絲含水率保持在11.35%~12.75%，在相對濕度為30%~80%條件下放置48 h，復合調試材料可使煙絲含水率保持在10.93%~13.30%；證明該調濕材料能有效調節煙盒內部濕度，穩定煙絲含水率，保持卷煙口感良好。 |
| 關(guān)鍵詞：復合調濕材料；聚乙烯醇；煙絲含水率 |
| 中圖分類(lèi)號：TQ223.1 文獻標識碼：A 文章編號：1009-9212（2022）05-0069-06 |
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| Preparation of Polyvinyl Alcohol-based Composite Moisture-controlling Materials and Their Regulation Performance for Cigarette Humidity |
| ZHU Zhe-wen1, WANG Xue-rui2, LUO Wei1, WANG Liang1, WU Ming-jian1, XIE Guo-yong1, YIN Dong-hong1*, HUANG Jian-han2
(1. China Tobacco Hunan Industry Co., Ltd., Changsha 410000, China: 2. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China) |
| Abstract：Polyvinyl alcohol (PVA) was chemically modified by polyacrylic acid, diatomite and CaCl2, and hence the PVA-based composite moisture-controlling materials were prepared. The results indicated that the hydrophobicity of the chemical modifying polyacrylic acid into PVA increased after the micro-cross-linking, while the hydrophilicity of the CaCl2 modified materials increased with the addition of CaCl2. Adjusting the ratio of PVA with different molecule weight was able to effectively reduce the viscosity of the resulting materials. As the relative humidity was kept at 30%~80% for 24 h, the moisture content of the tobacco was in the range of 11.35%~12.75%. As the relative humidity was 30%~80% for 48 h, the composite material kept the moisture content of the tobacco at 10.93%~13.30%. As a result, the present composite moisture-controlling materials was able to effectively regulate the internal humidity in the cigarette box, stabilize the moisture content of the tobacco, and make cigarettes keep good taste. |
| Key words：composite moisture-controlling materials; PVA; moisture content of the tobacco |
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作者簡(jiǎn)介：朱哲文（1990—），男，湖北襄陽(yáng)人，博士，研究方向：卷煙包裝研究（E-mail：zhuzhw1022@hngytobacco.com）。
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聯(lián) 系 人：銀董紅，教授，博士，研究方向：卷煙降焦減害研究（E-mail：yindh1127@hngytobacco.com）。
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收稿日期：2022-08-22
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