PVA-SA-PLA复合水凝胶的制备及铵离子扩散性能

Hydrogel materials were synthesized by PVA, SA and PLA microspheres, with 5% calcium chloride and boric acid as crosslinkers. The ammonia ion permeability of the hydrogel is investigated through static penetration. It discusses the effects of the material performance of penetration on ammonia ions. The permeability of ions in hydrogel can be described according to the solution diffusion model. The single-factor test shows that the best production process conditions to prepare hydrogel are crosslinking time of 15 min, PVA concentration of 4%~5%, alginate concentration of 2.0%, PLA concentration of 0.2%~0.3%.