【摘要】 本研究以纸为基材，利用聚乙烯醇（PVA）溶液分散相变微胶囊（PCM）制备涂布液，将其涂布在纸上制备负载相变微胶囊的纸基复合材料（C-PCM），用于加热不燃烧卷烟（HNB）降温段。并优化了PVA质量分数、相变温度及涂布工艺对C-PCM性能的影响。结果表明，涂布液最佳制备条件为PVA质量分数5%,PCM相变温度45℃，涂布液固含量20%，此条件下制备的C-PCM可将滤嘴最高温度降至37.4℃，降温效果显著优于国外市售产品。此外，C-PCM还具备良好的抗张指数（57.4 N·m/g）、亲水性（水接触角44.2°）和防油性，综合性能满足HNB卷烟的实际需求。在尽量保持复合材料降温性能的同时，添加适量的CaCO₃填料可以替代相变微胶囊以节约成本。更多还原

【Abstract】 In this study, a novel paper-based composites containing phase change microcapsules（C-PCM） was fabricated for the cooling segment of heat not burn（HNB） cigarettes. Using paper as the substrate, a coating solution was prepared by dispersing phase change mi??crocapsules（PCM） in a polyvinyl alcohol（PVA） solution, which was then applied onto the paper. Through optimization of PVA concentra??tion, phase change temperature, and coating parameters, the coating solution optimal preparation conditions were determined as: PVA solu??tion mass fraction was 5%, PCM phase change temperature was 45 ℃, coating solution solid content was 20%. The C-PCM prepared under this condition reduced the maximum temperature of the cigarette filter to 37.4 ℃, significantly outperforming commercially available HNB cigarette filters. The phase change enthalpy of C-PCM reached 120.3 J/g at this coating condition, confirming excellent heat absorption ca??pability. Additionally, C-PCM exhibits favorable tensile index（57.4 N·m/g）, hydrophilicity（water contact angle 44.2°）, and oil resistance. When maintaining the cooling performance of C-PCM as much as possible, adding an appropriate amount of CaCO₃ thermal conductive fill??er could replace an appropriate amount of phase change microcapsules to save costs.更多还原