现代纺织技术 ›› 2022, Vol. 30 ›› Issue (5): 167-173.DOI: 10.19398/j.att.202109060

• 染化工程 • 上一篇    下一篇

石榴型P(MMA-co-TMPTA)/香精微胶囊的制备与缓释性能

杜梦宇1, 朱建政2, 欧阳旭1, 徐士翔1, 张朝霞1, 张国庆1   

  1. 1.浙江理工大学材料科学与工程学院,杭州 310018;
    2.烟台市环境卫生管理中心,山东烟台 264000
  • 收稿日期:2021-09-30 出版日期:2022-09-10 网络出版日期:2022-09-19
  • 通讯作者:张国庆,E-mail: zgq@zstu.edu.cn
  • 作者简介:杜梦宇(1996-),男,安徽阜阳人,硕士研究生,主要从事相变材料制备及微胶囊化方面的研究。
  • 基金资助:
    国家自然科学基金项目(22075252)

Preparation and sustained-releaseproperties of poly(MMA-co-TMPTA)/fragrance microcapsules

DU Mengyu1, ZHU Jianzheng2, OUYANG Xu1, XU Shixiang1, ZHANG Zhaoxia1, ZHANG Guoqing1   

  1. 1. School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
    2. Yantai Environmental Sanitation Management Center, Yantai 264000, China
  • Received:2021-09-30 Published:2022-09-10 Online:2022-09-19

摘要: 聚甲基丙烯酸甲酯(PMMA)是制备缓释芳香微胶囊的常用壁材之一,但实际生产中发现其包封率低,而且香精易挥发会造成异味和浪费。本文以甲基丙烯酸甲酯(MMA)和三羟甲基丙烷三丙烯酸酯(TMPTA)复合单体,通过原位聚合得到薰衣草/P(MMA-co-TMPTA)微胶囊。采用扫描电子显微镜(SEM)、热重分析仪(TGA)、热解气相色谱-质谱(GC-MS)和电子鼻(PEN-3)对所合成的薰衣草香精微胶囊进行了表征,并考察了芯壳比对微胶囊包封率的影响。结果显示:薰衣草/P(MMA-co-TMPTA)微胶囊表现为石榴形,颗粒尺寸约10~20 μm,并且具有良好的耐热性能。优化配方工艺发现芯壳比为1.5∶1时,所得薰衣草香精微胶囊尺寸均匀、稳定性好,包封率高达94.2%。将合成的微胶囊通过浸轧热定型处理到织物上进行长期缓释实验,结果表明该微胶囊香精缓释性能优异,处理在织物上的香味可以保持3个月以上。

关键词: 聚甲基丙烯酸甲酯(PMMA), 香精微胶囊, 共聚, 热稳定性, 缓释性能

Abstract: Polymethyl methacrylate (PMMA) is one of the commonly used encapsulation materials for the preparation of sustained-release fragrancemicrocapsules. However, in practical production, the encapsulation efficiency is low and uncoated fragrance will cause bad smell and large waste. In this study, Lavender/(PMMA-co-TMPTA) fragrance microcapsules were prepared by in-situ polymerization with trimethylolpropane triacrylate (TMPTA) as comonomer. The lavender flavor microcapsules were characterized by scanning electron microscope (SEM), thermogravimetric analyzer (TGA), pyrolysis gas chromatography-mass spectrometry (PGC-MS) and electronic nose (PEN-3). The influence of core shell ratio on encapsulation efficiency of microcapsules was also investigated. The results showed that the prepared Lavender/(PMMA-co-TMPTA) microcapsules were pomegranate with rough surface and concave, and the particle size was between 10~20 μm. It was found that when the core-shell ratio was 1.5 : 1, the lavender microcapsule had uniform size and good stability, and the encapsulation efficiency was as high as 94.2%. The microcapsule was treated on the fabric for long-term release experiment. The results showed that the microencapsulated Lavender had excellent sustained release properties, and the flavor on the fabric could be maintained for more than three months.

Key words: polymethyl methacrylate(PMMA), fragrance microcapsules, copolymerization, thermal stability, sustained-release property

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