微胶囊机械性能表征方法的研究

Characterization Method Research of the Mechanical Properties of Microcapsules

为了对微胶囊机械性能进行定性及定量的分析,利用实验室常用的紫外可见分光光度计、抗压强度机、显微硬度仪和电子天平,研究了四种表征方法。以实验室自制的酚醛环氧树脂微胶囊为例,进行表征后发现:使用紫外可见分光光度计,借助胶囊破裂前后的吸收光谱变化,可对包有隐性染料的微胶囊进行间接定性表征;使用抗压强度机可对紧密堆积的微胶囊块进行直接定量表征;使用显微硬度仪和电子天平可实现对单个微胶囊进行直接定量表征。四种不同表征方法实现了对单个、多个微胶囊的定性和定量表征。

In order to research the mechanical properties of the microcapsules by qualitative and quantitative analysis, this paper discusses the common use equipments in lahora tory, such as UV-Vis spectrophotometer, strength instrument, microscope and electronic balance, which obtains four methods of characterization. Using the self-made phenolic resin microcapsules by laboratory are characterized and found. The use of UV-Vis spectrophotometer, with the capsule before and after the breakdown of the changes in the absorption spectrum, may have a indirect character ization by recessive dye pack in microcapsules; the use of strength instrument could achieve direct quantitative characterization of the accumulation of microeapsules block; The use of microscope and electronic balance could achieve direct quantitative characterization on a single microcapsules. Four different methods of characterization fairly achieve the qualitative and quantitative characterization of individual and multi microcapsules.