Photosensitive resin for 355nm SLA (Stereo Lithography Apparatus) 3D printing of arm orthoses
A photosensitive resin and arm technology, applied in the direction of additive processing, etc., can solve the problems of 3D printing parts that cannot meet industrial use, 3D printing parts deformation, large shrinkage rate, etc., to reduce R&D and production costs, medium elongation at break The effect of high rate, deflection resistance and high molding rate
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Embodiment 1
[0019] Take 20 parts of acrylic acid lauric acid (LA), 10 parts of polyurethane acrylate, 20 parts of bisphenol A epoxy resin, 0.2 parts of 2-hydroxy-2-methyl-phenylacetone, phenylthiophenyl diacetone in parts by mass 0.2 part of phenylsulfonium salt, 1 part of silicon dioxide, 0.05 part of polysiloxane-polyether copolymer, 0.3 part of modified polysiloxane, 0.05 part of titanium dioxide;
[0020] The preparation steps are: first stir and mix the liquid components in the technical formula components in a vacuum mixer, then add the solid components in the components and stir them evenly in a reaction kettle, then grind them on a grinder, filter them through a 400-mesh filter Filtration in the net, and finally packaging.
Embodiment 2
[0022] Take 25 parts of hydroxyethyl acrylate (HEA), 30 parts of polyester acrylate, 35 parts of aliphatic epoxy resin, 1 part of hydroxy-cyclohexyl ketone, and bis(4-dodecylbenzene) iodine in parts by mass. 1 part of onium hexafluoroantimonate, 5 parts of silicon nitride, 0.08 part of polysiloxane-polyether copolymer, 0.6 part of modified polysiloxane, 2 parts of carbon black;
[0023] The preparation steps are: first stir and mix the liquid components in the technical formula components in a vacuum mixer, then add the solid components in the components and stir them evenly in a reaction kettle, then grind them on a grinder, filter them through a 400-mesh filter Filtration in the net, and finally packaging.
Embodiment 3
[0025] Get 28 parts of tripropylene glycol diacrylate (TPGDA), 40 parts of polyether acrylate, 45 parts of bisphenol A epoxy resin, 2-hydroxyl-2-methyl-p-hydroxyethyl ether base phenylacetone in parts by mass 1.5 parts, 1.5 parts of phenylthiophenyl diphenylsulfonium salt, 8 parts of carbon fiber, 0.09 parts of polysiloxane-polyether copolymer, 0.8 parts of modified polysiloxane, 2.5 parts of phthalocyanine green;
[0026] The preparation steps are: first stir and mix the liquid components in the technical formula components in a vacuum mixer, then add the solid components in the components and stir them evenly in a reaction kettle, then grind them on a grinder, filter them through a 400-mesh filter Filtration in the net, and finally packaging.
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