基于TEMPO氧化纤维的功能性滤棒的制备及其应用研究
Research on functional filter rod based on TEMPO oxidized fiber
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摘要: 基于传统造纸法再造烟叶生产技术,结合2,2,6,6-四甲基哌啶-1-氧自由基(TEMPO)氧化纤维改性技术,制备绿色低碳植物纤维功能性滤棒,并将其应用于常规烟支进行感官评价研究。结果表明,制备植物纤维功能性滤棒的适宜条件为:m(针叶木纤维):m(醋酸纤维)=8 ∶ 2、TEMPO用量0.01 mmol/g、打浆度(25±2)°SR;在此条件下,滤棒原纸定量45 g/m2,松厚度2.88 cm3/g,透气度93 μm/(Pa· s),湿抗张指数3.073 N· m/g;涂布的植物纤维功能性滤棒卷烟的圆周、圆度、硬度和吸阻分别约为24.14 mm、0.39 mm、87.2%和331 mm H2O,均符合卷烟企业滤棒标准(圆周(24±0.20) mm、圆度≤ 0.40 mm、硬度≥ 82.0%和吸阻(310±30) mm H2O)。与传统纯醋纤滤棒相比,涂布的植物纤维功能性滤棒卷烟的感官评价总分相差不大,降低了2分,但主流烟气中有害成分的释放量均明显降低。因此,本研究制备的植物纤维功能性滤棒性能均能达到标准要求,这为绿色低碳、生物可降解和加香烟用滤棒的开发开辟了新途径。
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关键词:
- 功能性滤棒 /
- TEMPO氧化纤维改性技术 /
- 物理指标 /
- 烟气指标 /
- 感官评价
Abstract: Based on the traditional papermaking process for reconstituted tobacco, combined with 2, 2, 6, 6- tetramethylpiperidine-1-oxide free radical (TEMPO)-mediated fiber oxidation modification technology, functional filter rods made from green and low-carbon plant fibers were prepared and applied to conventional cigarettes for sensory evaluation studies. The results showed that the optimal conditions for preparing the plant fiber-based functional filter rods were as follows: a mass ratio of softwood fiber to acetate fiber of 8:2, a TEMPO dosage of 0. 01 mmol/g, and a beating degree of (25±2) °SR. Under these conditions, the base paper of the filter rod had a basis weight of 45 g/m2, a bulk of 2. 88 cm3/g, an air permeability of 93 μm/(Pa·s), and a wet tensile index of 3. 073 N · m/g. The coated plant fiber-based functional filter rod cigarettes exhibited a circumference, roundness, hardness, and pressure drop of approximately 24. 14 mm, 0. 39 mm, 87. 2%, and 331 mm H2O, respectively, all meeting the filter rod standards of cigarette enterprises (circumference: (24 ±0.20) mm, roundness: ≤ 0. 40 mm, hardness: ≥ 82. 0%, and pressure drop: (310 ±30) mm H2O). Compared with traditional pure acetate filter rods, the total sensory evaluation score of cigarettes with coated plant fiber-based functional filter rods showed little difference, decreasing by only 2 points, while the release of harmful components in the mainstream smoke was significantly reduced. Therefore, the performance of the plant fiber-based functional filter rods prepared in this study can meet the standard requirements, which opens up a new avenue for the development of green, low-carbon, biodegradable, and flavor-enhanced cigarette filter rods.-
Key words:
- functional filter stick /
- TEMPO modification /
- physical indicator /
- smoke indicator /
- sensory evaluation
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