Large-scale magnetic spinning equipment and method using equipment for manufacturing micro-nano-meter fibers
A micro-nano fiber, large-scale technology, applied in fiber processing, fiber chemical characteristics, complete sets of equipment for the production of artificial threads, etc., can solve the problem that the controllability of fiber diameter needs to be further improved, restrict the popularization and application of electrospinning technology, The problem of high liquid conductivity requirements can achieve the effect of low spinning cost, reduced production cost and safety hazards, and simple and easy-to-obtain equipment.
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Embodiment 1
[0027] Such as figure 1 Shown, a kind of large-scale magnet spinning equipment comprises support 11, can control the feeding device of feed rate, spinning injection device and the drum type collection device that horizontally arranges, and the collection drum 9 of described drum type collection device is installed on On the support 11, the collecting drum 9 is connected with the output shaft of the brushless DC motor 5 for linkage, the central axes of the collecting drum 9 and the output shaft of the brushless DC motor 5 coincide, and the brushless DC motor 5 is electrically connected to the power supply and the motor speed control Motor controller 10, the surface of described collection cylinder 9 is fixed with the strip permanent magnet 8 that provides magnetic field, and the major axis of described strip magnet 8 is parallel with the central axis of collection cylinder 9, and described spinning injection device is provided with multiple A spinning nozzle 3, the plurality of...
Embodiment 2
[0030] The method for preparing micro-nano fibers using the large-scale magnetic spinning equipment of embodiment 1 may further comprise the steps:
[0031] (1) Preparation of ferrofluid spinning solution: select sodium dodecylbenzene sulfonate as surfactant, and γ-Fe with a diameter of 20 nanometers 2 o 3 Disperse the magnetic nanoparticles into chloroform, add surfactants with the same quality as the magnetic nanoparticles, and prepare γ-Fe 2 o 3 Magnetic nanoparticles mass fraction is 11.5% ferrofluid solution; select water and dehydrated alcohol (volume ratio 70 / 30) as solvent, preparation mass fraction is 10% polyoxyethylene (molecular weight is 400000) solution, water bath is heated to Stir at 60°C for 2 hours to obtain a uniform polymer solution; mix the ferrofluid solution and the polymer solution at a ratio of 1:1 to make a ferrofluid spinning solution.
[0032] (2) Preparation of micro-nanofibers: inject the magnetic fluid spinning solution prepared in step (1) in...
Embodiment 3
[0034] The method for preparing micro-nano fibers using the large-scale magnetic spinning equipment of embodiment 1 may further comprise the steps:
[0035] (1) Preparation of ferrofluid spinning solution: select sodium dodecylbenzene sulfonate as surfactant, and γ-Fe with a diameter of 20 nanometers 2 o 3 Disperse the magnetic nanoparticles into chloroform, add surfactants with the same quality as the magnetic nanoparticles, and prepare γ-Fe 2 o 3 Magnetic nanoparticle mass fraction is 11.5% ferrofluid solution; Select chloroform as solvent, prepare the polyvinylidene fluoride (molecular weight 270000) solution that mass fraction is 25%, water bath is heated to 60 ℃, stirs 2 hours, obtains uniform high Molecular solution; mix ferrofluid solution and polymer solution at a ratio of 1:1 to make ferrofluid spinning solution.
[0036] (2) Preparation of micro-nanofibers: inject the magnetic fluid spinning solution prepared in step (1) into the syringe needle 1, turn on the micr...
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