Preparation method of chitosan membrane, chitosan membrane and application of chitosan membrane

The invention provides a preparation method of a chitosan membrane, the chitosan membrane prepared by the method and application of the chitosan membrane, the method comprises the following steps: S1, mixing chitosan, acid, C1-C6 monohydric alcohol, a pore-foaming agent, metal salt and water to obtain a membrane casting solution; s2, placing the membrane casting solution on a carrier to obtain a carrier loaded with a chitosan membrane; and S3, sequentially immersing the carrier loaded with the chitosan membrane into alkali liquor and water to separate the chitosan membrane from the carrier. The chitosan membrane disclosed by the invention has very strong strong alkali resistance, and has the advantages of high specific power, quick start, no corrosion, low reaction temperature, low oxidant requirement and the like when being used in a fuel cell as an anion exchange membrane material. 本发明提供了一种壳聚糖膜的制备方法、由该方法制备得到的壳聚糖膜及其应用，所述方法包括以下步骤：S1：将壳聚糖、酸、C1-C6的一元醇、致孔剂、金属盐和水混合，得到铸膜液；S2：将铸膜液置于载体上，得到负载有壳聚糖膜的载体；S3：将负载有壳聚糖膜的载体依次