A kind of laser marking powder of low additive amount polymer material and preparation method thereof
A technology of polymer materials and laser marking, which is applied in the field of laser marking powder of low additives and its preparation. Amount, improve clarity and contrast, the effect of simple process
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Embodiment 1
[0040] use as figure 1 The working principle of marking pattern produced by laser irradiation on polymer material is shown.
[0041] Put 20 parts of polycarbonate (PC) in 1000 parts of xylene, and ultrasonicate at 70°C for 2 hours to prepare a laser carbonization-friendly polymer system solution. Take 50 parts of BiOCl, and prepare a mixed solution with the prepared laser carbonization polymer system solution, ultrasonicate at 40°C for 1 hour, and completely evaporate the solvent in a vacuum oven at 80°C to obtain a PC-coated BiOCl laser-sensitive inorganic Particles, the morphology of BiOCl@PC laser-sensitive particles with "core-shell" structure is as follows figure 2 shown. figure 2 (a) is the SEM image of BiOCl particles, figure 2(b) is the scanning electron microscope image of the "core-shell" structure BiOCl@PC. As shown in the figure, after coating PC, the size of the particles increases significantly, and the shape is similar to a sphere. figure 2 (c) is the TE...
Embodiment 2
[0047] use as figure 1 The working principle of marking pattern produced by laser irradiation on polymer material is shown.
[0048] Put 20 parts of polystyrene (PS) in 1500 parts of toluene, and ultrasonicate at 70°C for 2 hours to prepare a laser carbonization-friendly polymer system solution. Take 60 parts of BiOCl, and prepare a mixed solution with the prepared laser carbonization polymer system solution, ultrasonicate at 40°C for 1 hour, and completely evaporate the solvent in a vacuum oven at 80°C to obtain PS-coated BiOCl laser-sensitive inorganic particles. Disperse 1 part of silver nanowires in 1000 parts of ethanol, then add 80 parts of the prepared BiOCl@PS particles, and after ultrasonication at room temperature for 1 hour, completely evaporate the ethanol to dryness in a vacuum oven at 50°C to obtain a polymer material Laser marking powder.
[0049] Add the prepared laser marking powder into the polypropylene (PP) matrix at a ratio of 3 / 1000, use a semiconducto...
Embodiment 3
[0051] use as figure 1 The working principle of marking pattern produced by laser irradiation on polymer film is shown.
[0052] 20 parts of polyethylene terephthalate (PET) were placed in 1500 parts of chloroform, and ultrasonicated at 70°C for 2 hours to prepare a laser carbonization-friendly polymer system solution. Take 70 parts of BiOCl, prepare a mixed solution with the prepared laser carbonization polymer system solution, ultrasonicate at 40°C for 1 hour, and completely evaporate the solvent in a vacuum oven at 80°C to obtain a PET-coated BiOCl laser-sensitive inorganic particles. Disperse 2 parts of carbon nanofibers in 1000 parts of ethanol, and then add 90 parts of the prepared BiOCl@PET particles. After ultrasonication at room temperature for 1 hour, the ethanol was completely evaporated to dryness in a vacuum oven at 50°C to obtain a polymer material laser marking powder.
[0053] Add the prepared laser marking powder into the polyethylene (PE) matrix at a ratio...
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