Modified polycarbonate material applied to 3D printing
A polycarbonate, 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of warping and deformation of printed products, polycarbonate materials cannot be printed and shaped, etc., to improve shrinkage, reduce warping and cracking, and improve the surface smooth effect
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Embodiment 1
[0033] This example provides a modified polycarbonate material for 3D printing, which contains the following components in parts by weight: 100 parts of general-purpose polycarbonate, 20 parts of polycaprolactone, 10 parts of toughening agent, hindered phenolic anti- 0.5 part of oxygen agent, 0.2 part of phosphite antioxidant; the general-purpose polycarbonate is selected from Covestro XT5010, the polycaprolactone selects Capa TM 6500, the toughening agent is methyl methacrylate-styrene-butadiene core-shell copolymer, and the hindered phenolic antioxidant is β-(3,5-di-tert-butyl-4-hydroxybenzene base) octadecyl propionate, and the phosphite antioxidant is three [2,4-di-tert-butylphenyl] phosphite.
[0034] The preparation method of the above-mentioned modified polycarbonate material applied to 3D printing comprises the following steps:
[0035] Dry the polycarbonate at 110°C until the water content does not exceed 0.05%, then cool to room temperature for later use;
[0036...
Embodiment 2
[0040] This embodiment provides a modified polycarbonate material for 3D printing, comprising the following components by weight: 100 parts of general-purpose polycarbonate, 10 parts of thermotropic liquid crystal polymer, 25 parts of polycaprolactone, toughened 12 parts, hydrophobic fumed silica, 0.3 parts of hindered phenolic antioxidant, and 0.2 part of phosphite antioxidant; the general-purpose polycarbonate is Chi Mei PC-122, and the thermally induced liquid crystal polymerization Celanese A950, the polycaprolactone selects Capa TM 6506, the toughening agent is methyl methacrylate-styrene-butadiene core-shell copolymer, and the hydrophobic fumed silica is Evonik Degussa hydrophobic fumed silica R974, the hindered phenolic antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, and the phosphite antioxidant is tris[2 , 4-di-tert-butylphenyl] phosphite.
[0041] The preparation method of the above-mentioned modified polycarbonate material applied to...
Embodiment 3
[0047] This embodiment provides a modified polycarbonate material for 3D printing, which includes the following components in parts by weight: 80 parts of general-purpose polycarbonate, 20 parts of disc grade polycarbonate, 5 parts of thermotropic liquid crystal polymer, polycarbonate 15 parts of caprolactone, 8 parts of toughening agent, 2 parts of hydrophobic fumed silica, 0.5 part of hindered phenolic antioxidant, 0.2 part of phosphite antioxidant; the general-purpose polycarbonate is selected from Covestro 2405, the disc grade polycarbonate is Covestro CD2005, and the thermotropic liquid crystal polymer is Celanese A900, the toughening agent is methyl methacrylate-butyl acrylate core-shell copolymer, and the polycaprolactone is selected from Capa TM 6500, the hydrophobic fumed silica is Evonik Degussa hydrophobic fumed silica R972, the hindered phenolic antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, and the phosphite a...
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