This invention provides a method and an apparatus for producing chitosan non-woven clothes. At first, the solution of chitosan is ejected to form a chitosan jet flow. Then, a solified agent is ejected to form a solified agent jet flow. The chitosan jet flow and the solified agent jet flow are combined to form a chitosan fiber. High-pressure air is ejected on the chitosan fiber to stretch the chitosan fiber. Finally, the chitosan fibers are collected to form chitosan non-woven clothes.
技術摘要-英文: This invention provides a method and an apparatus for producing chitosan non-woven clothes. At first, the solution of chitosan is ejected to form a chitosan jet flow. Then, a solified agent is ejected to form a solified agent jet flow. The chitosan jet flow and the solified agent jet flow are combined to form a chitosan fiber. High-pressure air is ejected on the chitosan fiber to stretch the chitosan fiber. Finally, the chitosan fibers are collected to form chitosan non-woven clothes.
A chitosan graft copolymer and a preparation method thereof are disclosed. The main chain of the chitosan graft copolymer is chitosan, and the grafting branch is polylactic acid or poly(lactic-co-glycolic) acid and can further include other polymer. The preparation method of the chitosan graft copolymer includes dissolving chitosan and a branch composition in water to directly perform polycondensation to obtain the chitosan graft copolymer.
技術摘要-英文: A chitosan graft copolymer and a preparation method thereof are disclosed. The main chain of the chitosan graft copolymer is chitosan, and the grafting branch is polylactic acid or poly(lactic-co-glycolic) acid and can further include other polymer. The preparation method of the chitosan graft copolymer includes dissolving chitosan and a branch composition in water to directly perform polycondensation to obtain the chitosan graft copolymer.
This invention provides a method and an apparatus for producing chitosan non-woven clothes. At first, the solution of chitosan is ejected to form a chitosan jet flow. Then, a solified agent is ejected to form a solified agent jet flow. The chitosan jet flow and the solified agent jet flow are combined to form a chitosan fiber. High-pressure air is ejected on the chitosan fiber to stretch the chitosan fiber. Finally, the chitosan fibers are collected to form chitosan non-woven clothes.
技術摘要-英文: This invention provides a method and an apparatus for producing chitosan non-woven clothes. At first, the solution of chitosan is ejected to form a chitosan jet flow. Then, a solified agent is ejected to form a solified agent jet flow. The chitosan jet flow and the solified agent jet flow are combined to form a chitosan fiber. High-pressure air is ejected on the chitosan fiber to stretch the chitosan fiber. Finally, the chitosan fibers are collected to form chitosan non-woven clothes.
A chitosan composite fiber containing magnetic particles and a preparation method for the same are provided. The preparation method includes steps of preparing a chitosan solution, homologously dispersing magnetic particles into the chitosan solution and wet-spinning the chitosan solution so as to obtain the chitosan composite fiber containing magnetic particles. The content of magnetic particles is weighted from 1-3% of the chitosan composite fiber. In a magnetic field, the magnetic particles in the chitosan composite fiber can enhance the absorption of the chitosan fiber to heavy metal ions.
技術摘要-英文: A chitosan composite fiber containing magnetic particles and a preparation method for the same are provided. The preparation method includes steps of preparing a chitosan solution, homologously dispersing magnetic particles into the chitosan solution and wet-spinning the chitosan solution so as to obtain the chitosan composite fiber containing magnetic particles. The content of magnetic particles is weighted from 1-3% of the chitosan composite fiber. In a magnetic field, the magnetic particles in the chitosan composite fiber can enhance the absorption of the chitosan fiber to heavy metal ions.
A preparation method of chitosan fiber matrix is disclosed. Low concentration of weak acid and weak base are used to respectively prepare spinning solution and coagulating solution of chitosan fibers. The chitosan fibers with diameters below 10 µm are formed in the coagulating solution by rapid stirring. Finally, the coagulating solution containing the chitosan fibers is dried and molded to form fiber matrix.
技術摘要-英文: A preparation method of chitosan fiber matrix is disclosed. Low concentration of weak acid and weak base are used to respectively prepare spinning solution and coagulating solution of chitosan fibers. The chitosan fibers with diameters below 10 µm are formed in the coagulating solution by rapid stirring. Finally, the coagulating solution containing the chitosan fibers is dried and molded to form fiber matrix.