韩坤,胡梦欣,宋佳翼,刘莹莹,武士杰,刘洪斌.檀香精油@壳聚糖/纤维素纳米纤丝微胶囊的制备及其性能研究[J].中国造纸学报,2026,41(3):80-89 本文二维码信息
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檀香精油@壳聚糖/纤维素纳米纤丝微胶囊的制备及其性能研究
Study on Preparation and Performance of Sandalwood Essential Oil@Chitosan/Cellulose Nanofibril Microcapsules
投稿时间:2025-12-28  修订日期:2026-01-09
DOI:10.11981/j.issn.1000-6842.2026.03.80
中文关键词:  檀香精油  纤维素纳米纤丝  壳聚糖  微胶囊  复凝聚法
Key Words:sandalwood essential oil  cellulose nanofibril  chitosan  microcapsule  co-coagulation method
基金项目:浙江景兴纸业股份有限公司校企合作项目齐鲁工业大学制浆造纸科学与技术教育部重点实验室开放基金KF202010云南中烟工业有限责任公司科技项目2024YL04云南中烟再造烟叶有限责任公司科技项目GYCXJS-02浙江景兴纸业股份有限公司校企合作项目;齐鲁工业大学制浆造纸科学与技术教育部重点实验室开放基金(KF202010);云南中烟工业有限责任公司科技项目(2024YL04);云南中烟再造烟叶有限责任公司科技项目(GYCXJS-02)。
作者单位邮编
韩坤 1天津科技大学轻工科学与工程学院,天津,300457 300457
胡梦欣 1天津科技大学轻工科学与工程学院,天津,300457 300457
宋佳翼 2中国制浆造纸研究院有限公司,北京,100102 100102
刘莹莹* 1天津科技大学轻工科学与工程学院,天津,300457 300457
武士杰 3云南中烟再造烟叶有限责任公司,云南昆明,650106 650106
刘洪斌* 1天津科技大学轻工科学与工程学院,天津,300457 300457
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中文摘要:
      本研究采用复凝聚法,以檀香精油(SEO)为芯材,壳聚糖(CS)与纤维素纳米纤丝(CNF)为复合壁材,吐温-80为乳化剂,三聚磷酸钠(TPP)为交联剂,制备SEO@CS/CNF微胶囊,以实现对SEO的有效保护与可控缓释。以微胶囊平均粒径及SEO包埋率为核心评价指标,确定微胶囊制备的最佳工艺条件为CS与CNF质量比8∶1、芯材与壁材质量比4∶1、体系pH值4.5。在最佳工艺条件下制得SEO@CS/CNF微胶囊的SEO包埋率可达94%,Zeta电位7.0 mV,平均粒径4.4 μm,同时具备优异的热稳定性与缓释性能,在水中储存14天后,SEO累积释放率仅55.3%。缓释动力学拟合结果表明,SEO@CS/CNF微胶囊的SEO缓释过程符合一级动力学模型,其缓释机制以非常规传输为主。
Abstract:
      In this study, the co-coagulation method was employed to prepare SEO@CS/CNF microcapsules using sandalwood essential oil (SEO) as the core material, chitosan (CS) and cellulose nanofibril (CNF) as the composite shell materials, Tween-80 as the emulsifier, and sodium tripolyphosphate (TPP) as the cross-linking agent, with the aim of achieving effectively protecting SEO and controlled-release. Using the average particle size of the microcapsules and the SEO encapsulation efficiency as key evaluation indicators, the optimum process conditions for microcapsule preparation were determined to be a mass ratio CS to CNF of 8∶1, a mass ratio of the core material to the wall material of 4∶1, and a system pH value of 4.5. Under the optimum conditions, the SEO@CS/CNF microcapsules exhibited an SEO encapsulation efficiency of 94%, a zeta potential of 7.0 mV, and an average particle size of 4.4 µm. They also demonstrated excellent thermal stability and slow-release performance. After 14 days of storage in an aqueous environment, the cumulative release rate of SEO from SEO@CS/CNF microcapsules was only 55.3%. The results of the slow-release kinetics fitting indicated that the sustained-release process of SEO from SEO@CS/CNF microcapsules followed a first-order kinetic model, and the release mechanism was primarily non-conventional transport.
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