Abstract
A method was developed for producing double emulsion droplets based on a compositional microfluidic chip that was consisted of a T-micro connector, a cross-micro connector and a glass capillary. T-junction microfluidic chip could fabricate high throughput and uniform oil-in-water (O/W) and water-in-oil (W/O) droplets without hydrophobic or hydrophilic treatments. T-junction microfluidic chip was reusable and highly reliable. The process of generation droplet was simulated by COMSOL in 3D simulation model. The T-junction microfluidic chip was used to generate W/O droplets, and it was found that the high throughput and uniform W/O droplets could be obtained by adjusting the phase flow. Besides, the W/O droplets with different colors were obtained by a microfluidic chip comprised of cross-micro connector and glass capillary. Based on the above experiments, a combination microfluidic chip of T-micro connector, cross-micro connector and glass capillary was constructed. The constructed chip could produce W/O/W doub