Polymer microsphere encoded by nano-gold and method for preparing same
A technology of polymer and gold nanoparticles, applied in the field of polymer microspheres, can solve the problems of high production equipment requirements, uneven particle size and high production cost, and achieve the effects of reducing application cost, simple preparation device and low cost
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Embodiment 1
[0026] Example 1: Preparation of green pearlescent pigment-encoded carboxyl-modified polystyrene microspheres
[0027] ① dissolving the carboxy-modified polystyrene solid in a mixed solvent of ethylene dichloride and benzene at a concentration of 7%, and the mixing ratio of ethylene dichloride and benzene is 1:1;
[0028] ② Add red gold nanoparticles to the polystyrene solution at a ratio of 0.1 mg nano-gold particles / ml polymer solution, and stir evenly;
[0029] ③The diameter of the tip of the tip glass tube 4 is set to 200 μm, and the distance between the upper port of the glass conduit 5 and the tip of the tip glass tube is 1 mm;
[0030] ④ Inject 5% polyvinyl alcohol solution into the glass cylinder through the interface 2 of the electromagnetic pump. When the glass cylinder 3 is filled with the polyvinyl alcohol solution, control the injection speed of the polyvinyl alcohol solution to 25ml / min;
[0031] ⑤Inject the polystyrene solution containing green pearlescent pigm...
Embodiment 2
[0034] Example 2: Preparation of purple pearlescent pigment-coded polymethyl methacrylate microspheres
[0035]①Dissolve polymethyl methacrylate in a mixed solvent of ethylene dichloride and benzene at a concentration of 5%, and the mixing ratio of ethylene dichloride and benzene is 2:3;
[0036] ②Add green pearlescent pigment to the polystyrene solution at a ratio of 0.5mg pearlescent pigment / ml polymer solution, and stir evenly;
[0037] ③Set the diameter of the tip of the tip glass tube 4 to be 200 μm, and the distance between the upper port of the glass conduit 5 and the tip of the tip glass tube is 1.5 mm;
[0038] ④ Inject 5% polyvinyl alcohol solution into the glass cylinder through the electromagnetic pump interface 2, and when the glass cylinder (3) polyvinyl alcohol solution is filled, control the injection speed of the polyvinyl alcohol solution to 20ml / min;
[0039] ⑤Inject the polystyrene solution containing purple pearlescent pigment through the syringe pump int...
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