摘要
以壳聚糖(CTS)为壁材,腐殖酸(HA)为芯材,制备了壳聚糖包覆腐殖酸(CTS/HA)微胶囊保水材料。通过傅里叶红外光谱(FTIR)、偏光显微镜(POM)和场发射扫描电镜(SEM)分别表征和观察CTS/HA微胶囊的结构和表面形貌,探讨了不同芯壁比〔m(CTS)∶m(HA)〕、固化剂用量和搅拌速度对微胶囊表面形态的影响,并测试了CTS/HA的保水性能。结果表明,CTS/HA呈现包覆微胶囊结构,当m(CTS)∶m(HA)=1∶3、固化剂用量为CTS/HA总质量的1%、搅拌速度为500 r/min时,微胶囊具有较好的表面形态,且具有较好的吸水和保水性能,其12 h的吸水率和保水率分别高达248%和158%。
Chitosan coated humic acid（ CTS / HA） microcapsules as a new kind of water retention materials were prepared using chitosan（ CTS） as wall materials and humic acid（ HA） as the cores. The structure and surface morphology of CTS / HA were characterized and observed by fourier transform infrared Spectrum（ FTIR）,polarizing microscope（ POM） and scanning electron microscope（ SEM）,respectively. The influences of m（ CTS） ∶ m（ HA）,curing agent content and stirring rate were discussed on the surface morphology of microcapsules,and the water-retention of CTS / HA was also tested. The results showed that CTS / HA displayed good surface morphology microcapsule when the m（ CTS） ∶ m（ HA） was 1∶3,the content of curing agent was 1% of the total mass for CTS /HA and the stirring rate was 500 r / min. In addition,the microcapsule had good water absorption and water retention performance with water absorption rate and water retention rate as high as 248% and 158% in 12 h,respectively.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2016年第3期271-276,共6页
Fine Chemicals
基金
陕西省农业科技创新资助项目(2012NKC02-09)~~
关键词
壳聚糖
腐殖酸
微胶囊
保水性能
功能材料
chitosan
humic acid
microcapsules
water retention
functional materials
