SLA elastic photosensitive resin for 3D printing and preparation method thereof
A photosensitive resin and 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of difficult to meet the actual needs of customers, low elongation at break of photosensitive resin, etc., achieve the best promotion space and market value, and improve research and development Efficiency, steps are simple and efficient
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Embodiment 1
[0027] The technical solution adopted in this embodiment is a preparation method of SLA elastic photosensitive resin for 3D printing, and the steps of the preparation method are:
[0028] (1) Add the monomer raw materials, initiators, defoamers, leveling agents, toughened microspheres and pigments weighed in advance to the mixer in turn, and stir fully to obtain a mixed liquid; the stirring speed is 350r / min;
[0029] In parts by weight, the monomer raw material is 40 parts of 2-acrylic acid (tetrahydro-2-furyl) methyl ester, the initiator is 2 parts of 2-hydroxyl-2-methyl-phenylacetone-1, The foaming agent is 0.05 parts of Foamex N, the leveling agent is 0.05 parts of Flow 425, the toughening microsphere is 5 parts of Expancel 930DU120, and the pigment is 2 parts of titanium dioxide;
[0030] (2) Add resin raw materials and toughened rubber to the mixed liquid obtained in the step (1) at 60° C. and stirring conditions, stir evenly and sieve to obtain SLA elastic photosensit...
Embodiment 2
[0035] The technical solution adopted in this embodiment is a preparation method of SLA elastic photosensitive resin for 3D printing, and the steps of the preparation method are:
[0036] (1) Add the monomer raw materials, initiators, defoamers, leveling agents, toughened microspheres and pigments weighed in advance to the mixer in turn, and stir fully to obtain a mixed liquid; the stirring speed is 350r / min;
[0037] In parts by weight, the monomer raw material is 40 parts of bisphenol A diglycidyl ether diacrylate, and the initiator is 2.1 parts of bis-(2,4,6)-trimethylbenzoyl phenyl oxidation Phosphine, defoamer is 0.03 parts of Airex 986, leveling agent is 0.06 parts of BYK 371, toughening microspheres is 10 parts of Expancel 043DU80, pigment is 2 parts of titanium dioxide;
[0038](2) Add resin raw materials and toughened rubber to the mixed liquid obtained in the step (1) at 60° C. and stirring conditions, stir evenly and sieve to obtain SLA elastic photosensitive resi...
Embodiment 3
[0043] The technical solution adopted in this embodiment is a preparation method of SLA elastic photosensitive resin for 3D printing, and the steps of the preparation method are:
[0044] (1) Add the monomer raw materials, initiators, defoamers, leveling agents, toughened microspheres and pigments weighed in advance to the mixer in sequence, and stir fully to obtain a mixed liquid; the stirring speed is 400r / min;
[0045] In parts by weight, the monomer raw material is 40 parts of 4-hydroxybutyl acrylate, the initiator is 4.9 parts of 1-hydroxy-cyclohexyl benzophenone, the defoamer is 0.02 parts of BYK 055, and the leveling agent is 0.03 parts of Flow 300, 15 parts of Expancel 909DU80 for toughened microspheres, 0.05 parts of titanium dioxide for pigments;
[0046] (2) Add resin raw materials and toughened rubber to the mixed liquid obtained in the step (1) at 60° C. and stirring conditions, stir evenly and sieve to obtain SLA elastic photosensitive resin for 3D printing. T...
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