Preparation method and application of grafted dendritic polymer electrostatic spinning nanofiber membrane oil-water separation material
A nanofiber membrane and electrospinning technology, which is applied in the field of preparation of grafted dendritic polymer electrospinning nanofiber membrane oil-water separation materials, can solve problems such as unfounded construction ideas, and achieve improved oil-water separation efficiency and excellent performance. Structural properties, effects of increasing crash efficiency
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[0024] Example 1
[0025] The electrospinning nanofiber membrane is prepared with polyacrylonitrile as the raw material. The dendritic polymer PAMAM (G1) is used as the dendritic polymer and modified by the silane coupling agent γ-aminopropyltrimethoxysilane. Subsequently, the nano-silica is used as inorganic nanoparticles, modified by ethanolamine, and the modified nano-silica is grafted onto the oil-water separation membrane.
[0026] Under the protection of nitrogen, add 2.5 g of dendrimer PAMAM (G1) into a three-necked flask, raise the temperature to 180℃, and then add 10 g of silane coupling agent γ-aminopropyl trimethoxy into the Erlenmeyer flask Silane, and mixed uniformly, react at this temperature for 6 hours, stop the reaction and condense to obtain PAMAM modified with silane coupling agent. The modified dendritic polymer is reacted with the nanofiber membrane coated with polydopamine to obtain the modified nanofiber membrane.
[0027] Using nano-silica as nano-particles...
Example Embodiment
[0029] Example 2
[0030] The electrospinning nanofiber membrane is prepared with polyacrylonitrile as the raw material. Using dendrimer PAMAM (G1) as dendrimer, modified nanofiber membrane by silane coupling agent N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane Then, using nano-silica as inorganic nanoparticles, modified by propanolamine, the modified nano-silica is grafted onto the oil-water separation membrane.
[0031] Under the protection of nitrogen, add 3 g of dendrimer PAMAM (G1) into a three-necked flask, raise the temperature to 160℃, and then add 12 g of silane coupling agent N-β-(aminoethyl )-γ-Aminopropylmethyldimethoxysilane, mixed uniformly, reacted at this temperature for 8 hours, stopped the reaction and condensed to obtain PAMAM modified by the silane coupling agent. The modified dendritic polymer is reacted with the nanofiber membrane coated with polydopamine to obtain the modified nanofiber membrane.
[0032] Using nano-silica as the nanoparticles, the part...
Example Embodiment
[0034] Example 3
[0035] The electrospinning nanofiber membrane is prepared with polyacrylonitrile as the raw material. The dendritic polymer PAMAM (G2) is used as the dendritic polymer and modified by the silane coupling agent γ-aminopropyltrimethoxysilane to obtain modified nanofiber membranes. Then, nanosilica is used as inorganic nanoparticles , Modified by propanolamine, the modified nano silica is grafted onto the oil-water separation membrane.
[0036] Under the protection of nitrogen, add 2g of dendrimer PAMAM (G2) into a three-necked flask, raise the temperature to 200℃, and then add 10g of silane coupling agent γ-aminopropyltrimethoxysilane into the Erlenmeyer flask, And mix uniformly, react at this temperature for 6 hours, stop the reaction and condense to obtain PAMAM modified with silane coupling agent. The modified dendritic polymer is reacted with the nanofiber membrane coated with polydopamine to obtain the modified nanofiber membrane.
[0037] Using nano-silica a...
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