Journal of Guangdong University of Technology ›› 2009, Vol. 26 ›› Issue (3): 1-4.

• Comprehensive Studies •     Next Articles

Preparation of PVA-SA-PLA Composite Hydrogels and the Diffusibility Performance for NH+4

  

  1. 1.Facalty of Materials,Northwestern Polytechnical University,Xi’an 710072,China;2.Pearl River Fishery Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510380,China;3.Faculty of Chemistry and Chemical Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China
  • Online:2009-10-02 Published:2009-10-02

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Abstract: 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 crosslinkin...

Key words: ammonia ion； diffusivity； hydrogel； sodium alginate； polyvinyl alcohol(PVA)； polylactic acid microspheres；

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