以蚕丝油为分散相、卡波姆水凝胶为连续相，设计玻璃管微流控器件，制备液滴尺寸均一可控的液滴悬浮液。卡波姆水凝胶的流变测试表明其具有剪切变稀的性质。在没有剪切力的情况下，卡波姆水凝胶黏度较大，可以稳定悬浮液滴；在微流控器件中高速剪切下，卡波姆水凝胶黏度变小，可以流动并乳化油相。通过改变内相蚕丝油的流速和外相卡波姆水凝胶的流速，可以调节液滴悬浮液中液滴的大小和油水的比例；通过微流控器件的平行放大设计，可以实现液滴悬浮液的连续和批量生产。微流控技术精确控制乳化过程并制备液滴悬浮液具有广阔的应用前景。

Droplet suspensions with uniform silk oil droplets homogenously dispersed in carbomer hydrogel are prepared by using glass-capillary microfluidic devices.Through rheological tests,carbomer hydrogel possesses a shear-shinning behavior.Without shear,carbomer hydrogel has a large viscosity and are able to stabilize suspended droplets in 3D space.However,under a high-speed shear in the microfluidic devices,the viscosity of carbomer hydrogel drops dramatically,and the carbomer hydrogel can flow and emulsify the inner oil phase.By tuning the flow rates of the inner oil phase and the outer hydrogel phase,the droplet size and the oil-to-water ratio of the droplet suspensions can be precisely controlled.Continuous and mass production of droplet suspension can also be achieved by parallelization of the microfluidic devices.Microfluidic technology can precisely control the emulsification process and prepare the droplet suspensions,representing an important industrial application prospect.

王行政(1995-),男,硕士研究生,研究方向为微流控、数值仿真,21727076@zju.edu.cn