Styrene-based resin micro-nano fiber mat capable of adsorbing polycyclic aromatic hydrocarbons and preparation method thereof
A styrene-based resin, micro-nano fiber technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of secondary environmental pollution, difficult recycling, and high preparation costs
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Embodiment 1
[0059] use figure 1 The micro-nano layer co-extrusion equipment shown prepares polystyrene micro-nano fibers. Add the polystyrene resin PS and the separation polymer resin PEO into two extruders respectively. For the extruder adding PS, the temperature of each zone is 130°C, 160°C, and 190°C in sequence, and the screw speed is 10r / min ;For the extruder added with PEO, the temperature of each zone is 60°C, 120°C, 180°C in turn, and the screw speed is 10r / min; ℃, the cutting module is set to have 2, 5, 7, and 9 superimposed units, so as to obtain an alternating layer structure of 24, 26, 28, and 210. And wind up with a winding device, so as to obtain 8-layer, 64-layer, 256-layer, 1024-layer alternate structure fibers.
[0060] The obtained PS and PEO alternate structure fibers are stirred at high speed in water and ultrasonically dispersed or rinsed with a high-pressure water gun to separate the PEO resin and obtain micron to nanoscale PS fibers with uniform and controllable s...
Embodiment 2
[0064] Polystyrene resin and magnetic iron oxide (Fe 3 o 4 ) were blended with an internal mixer according to different proportions to obtain a composite resin. Composite resin micro-nano fibers were prepared by micro-nano layer co-extrusion equipment. The composite resin PS (Fe 3 o 4 ) and the separation polymer resin PEO were added to the two extruders respectively, for the addition of PS (Fe 3 o 4 ) extruder, the temperature of each zone is 120°C, 170°C, 200°C, and the screw speed is 10r / min; for the extruder with PEO, the temperature of each zone is 60°C, 120°C, 180°C, The rotation speed is 10r / min; the confluence and layered superposition unit cutting module is 200°C, the die temperature is 190-200°C, and the cutting module is set to have 2, 5, 7, and 9 superposition units, so as to obtain 24, Alternating layer structure of 26, 28, 210. And wind up with a winding device, so as to obtain 8-layer, 64-layer, 256-layer, 1024-layer alternate structure fibers. Will get ...
Embodiment 3
[0067] Styrene terpolymer resin (ABS) micro-nanofibers were prepared by micro-nano-layer co-extrusion equipment. Add the styrene-based polymer resin ABS and the separation polymer resin PEO into two extruders respectively. For the extruder with ABS added, the temperature of each zone is 150°C, 180°C, and 220°C in sequence, and the screw speed is 10r / min; for the extruder with PEO, the temperature of each zone is 60°C, 120°C, 180°C in sequence, and the screw speed is 10r / min; -220°C, set cutting modules with 2, 5, 7, and 9 superposition units, so as to obtain 24, 26, 28, and 210 alternate layer structures. And wind up with a winding device, so as to obtain 8-layer, 64-layer, 256-layer, 1024-layer alternate structure fibers. The obtained ABS and PEO alternating structure fibers are stirred at high speed and ultrasonically dispersed or washed with a high-pressure water gun to separate the PEO resin and obtain micron to nanometer-sized ABS fibers with uniform and controllable si...
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