CAJ | 학술논문

为解决日化香精易挥发变质的问题，拓宽其应用领域，采用原位聚合法制备了一系列蜜胺树脂（MF ）香精微胶囊。以低甲醚化蜜胺（L-MMF）树脂为例，傅立叶变换红外光谱（FT-IR）的结果证实了微胶囊对香精的良好包覆性，热失重（TG-DTG）分析说明微胶囊大幅提高了香精的耐热性能。进一步采用脲、间苯二酚、聚乙烯醇（PVA）、聚乙二醇（PEG）、氯化钠对蜜胺树脂进行改性并与未改性的树脂及不同甲醚化程度的蜜胺树脂进行对比，研究了改性对微胶囊包覆效果的影响。结果表明，低甲醚化蜜胺树脂和聚乙烯醇改性蜜胺树脂对香精的包覆效果较好，所得香精微胶囊粒径小，分布窄，包覆率高。
위해결일화향정역휘발변질적문제，탁관기응용영역，채용원위취합법제비료일계렬밀알수지（MF ）향정미효낭。이저갑미화밀알（L-MMF）수지위례，부립협변환홍외광보（FT-IR）적결과증실료미효낭대향정적량호포복성，열실중（TG-DTG）분석설명미효낭대폭제고료향정적내열성능。진일보채용뇨、간분이분、취을희순（PVA）、취을이순（PEG）、록화납대밀알수지진행개성병여미개성적수지급불동갑미화정도적밀알수지진행대비，연구료개성대미효낭포복효과적영향。결과표명，저갑미화밀알수지화취을희순개성밀알수지대향정적포복효과교호，소득향정미효낭립경소，분포착，포복솔고。
To avoid the deterioration and volatilization of fragrance oil and expand its application fields,a series of microcap-sules encapsulated fragrances with melamine-formaldehyde resin were prepared by in-situ polymerization. Taking partly metha-nol-modified melamine-formaldehyde (L-MMF)resin as an example,the fourier transform infrared (FT-IR)spectrometric re-sults showed that the fragrance oil was well encapsulated by L-MMF resin. And the thermo gravimetric analysis (TG-DTG) tests indicated that the microencapsulation significantly improved the thermal stability of the core material (fragrance oil). Fur-thermore,effects of the modification of MF resin on the encapsulation of fragrance oil were investigated by comparing the per-formance of microcapsules using the MF resin,MF resin with different degree of methanol-modification and modified MF resin with urea,resorcinol,polyvinyl alcohol (PVA),polyethylene glycol (PEG)and sodium chloride as shell materials. And the re-sults showed that L-MMF resin and PVA modified MF resin showed strong encapsulating ability for fragrance and high encapsulation efficiency. Additionally,the particle size of the fabricated microcapsule was small and the size distribution was narrow.