▎ 摘　　要

NOVELTY - Preparing modified laser directing structuring laser engraving agent comprises mixing weak acid in a mass ratio of 1-3:3 and water uniformly to obtain mixed solution A material, where the weak acid includes phosphorus acid and phosphoric acid, mixing the original ecological laser directing structuring laser engraving agent and filler with mass ratio of 2-6:1 uniformly to obtain material B, where the original laser directing structuring radium carving assistant is inorganic metal oxide, inorganic metal salt or organometallic complex, the inorganic metal oxide is oxides of cadmium, zinc, copper, cobalt, magnesium, tin, titanium, iron, aluminum, nickel, gold, silver, palladium, manganese and/or chromium, the acid radical of the inorganic metal salt is hydrogen phosphate, phosphate, sulfate and/or thiocyanate, the ligand of the organometallic complex includes aromatic hydrocarbon complexes, alkenyl complex, metallocene complex, carbene complex and carbae complex. USE - The method is useful for preparing modified laser directing structuring laser engraving agent. ADVANTAGE - The method maintains its excellent mechanical properties, maintains high impact strength and heat distortion temperature, and significantly improves pass rate, stress test pass rate, pass rate of laser directing structuring finished products. DETAILED DESCRIPTION - Preparing modified laser directing structuring laser engraving agent comprises mixing weak acid in a mass ratio of 1-3:3 and water uniformly to obtain mixed solution A material, where the weak acid includes phosphorus acid and phosphoric acid, mixing the original ecological laser directing structuring laser engraving agent and filler with mass ratio of 2-6:1 uniformly to obtain material B, where the original laser directing structuring radium carving assistant is inorganic metal oxide, inorganic metal salt or organometallic complex, the inorganic metal oxide is oxides of cadmium, zinc, copper, cobalt, magnesium, tin, titanium, iron, aluminum, nickel, gold, silver, palladium, manganese and/or chromium, the acid radical of the inorganic metal salt is hydrogen phosphate, phosphate, sulfate and/or thiocyanate, the ligand of the organometallic complex includes aromatic hydrocarbon complexes, alkenyl complex, metallocene complex, carbene complex and carbae complex, the filler is one of titanium dioxide, hydrotalcite, hollow glass beads, talc, mica powder, and graphene, dispersing the metal ion salt ionomer using a high-speed mixer or mixing the metal ion salt ionomer in a mass ratio of 1:5-10 and acetone uniformly to obtain modifier C material, where the metal ion salt ionomer is Zn2+ or Al3+ ion acrylic acid, sulfonic acid, phosphoric acid, acetic acid, stearic acid and maleate ionomer, the mass ratio of material B: material A: material C as 100:0.1-2:1-20, add material B, material A, and material C into the high-speed mixer in turn, adding each kind of material, stirring uniformly at 4-75 degrees C and 200-500 revolutions/minute speed, stirring uniformly, adding another material until all the materials have been added, and stirring uniformly. An INDEPENDENT CLAIM is also included for laser directing structuring composite material, comprising 52-86 pts. wt. polycarbonate, 0-30 pts. wt. ABS plastic, 0-30 pts. wt. glass fiber, 10-30 pts. wt. flame retardant, 4-6 pts. wt. toughening agent, 0.1-1 pts. wt. lubricant and 0.2-1 pts. wt. antioxidant, 10-30 pts. wt. modified laser directing structuring laser carving auxiliary, preparing the modified laser directing structuring laser carving agent is prepared by mixing the weak acid with a mass ratio of 1-3:3 and water uniformly to obtain mixed solution A material, where the weak acid is phosphorus acid and phosphoric acid, mixing the original ecological laser directing structuring laser engraving aids and filler in a mass ratio of 2-6:1 uniformly to obtain material B, the original LDS radium carving agent is inorganic metal oxide, inorganic metal salt or organometallic complex, the inorganic metal oxide is oxides of cadmium, zinc, copper, cobalt, magnesium, tin, titanium, iron, aluminum, nickel, gold, silver, palladium, manganese or chromium in any ratio mixture, the acid radical of the inorganic metal salt is hydrogen phosphate, phosphate, sulfate or thiocyanate, the ligand of the organometallic complex is aromatic hydrocarbon complex, alkenyl complex, metallocene complex, carbene complex, and carbene complex, the filler includes titanium dioxide, hydrotalcite, hollow glass beads, talc, mica powder, and graphene, dispersing the metal ion salt ionomer using a high-speed mixer or mixing the metal ion salt ionomer in a mass ratio of 1:5-10 and acetone uniformly to obtain modifier C material, where the metal ion salt ionomer is acrylic acid, sulfonic acid, phosphoric acid, acetic acid, Zn2+ or Al3+ ion, stearic acid and maleate ionomer, the mass ratio of material B, material A and material C as 100:0.1-2:1-20, adding material B, material A, and material C into the high-speed mixer, adding each material, stirring uniformly at 45-75 degrees C at 200-500 revolutions/minute, stirring uniformly, adding another material until all the materials, stirring uniformly, obtaining the modified LDS radium carving agent, where the flame retardant is phosphorus flame retardants and nitrogen flame retardants, the nitrogen flame retardant accounts for 0-70% of the total flame retardant, phosphorus-based flame retardants account for 30-100% by weight of the total flame retardants, the toughening agent is methyl methacrylate-butadiene-styrene core-shell structure impact modifier, hydrogenated styrene-butadiene block copolymer, Styrene-polyisoprene-polystyrene triblock copolymer, polyethylene octene co-elastomer, ethylene-butyl acrylate copolymer, ethylene-methyl acrylate copolymer, silicone core-shell polymer or silicon-containing compound or resin, the lubricant is pentaerythritol stearate, the antioxidant is tetrakis ( beta -(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid) pentaerythritol ester, Tris(2,4-di-tert-butylphenyl) phosphite, beta -(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexanediamine, and/or tetra-(2,4-di-tert-butylphenyl)-4,4'-biphenyl bisphosphite.