Photocuring flexible resin for 3D (three dimensional) printing and preparation method thereof
A flexible resin, 3D printing technology, applied in the direction of additive processing, etc., can solve problems such as difficulty in meeting shoe materials, achieve the best promotion space and market value, and the effect of simple and efficient steps
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Embodiment 1
[0033] The technical solution adopted in this embodiment is a method for preparing a light-cured flexible resin for 3D printing. The steps of the preparation method are:
[0034] (1) Low-speed stirring: add the pre-weighed monomer raw materials, resin raw materials, initiators, defoamers, leveling agents and pigments into the agitator in sequence, and pre-mix at low speed to obtain a premix; The rotating speed is 300-800r / min;
[0035] The raw material components include the following components in parts by weight: the monomer raw material is 60.5 parts of polyethylene glycol diacrylate, the resin raw material is 34.9 parts of trifunctional aromatic polyether urethane acrylate, and the initiator is phenylphosphine oxide 2.1 parts, defoamer is BYK 067A 0.5 parts, leveling agent (BYK 373) 1 part, pigment (carbon black) 1 part;
[0036] (2) High-speed stirring: Stir the premixed solution in the mixer at high speed for 13 minutes to obtain a uniform mixed solution; the speed of h...
Embodiment 2
[0041] The technical solution adopted in this embodiment is a method for preparing a light-cured flexible resin for 3D printing. The steps of the preparation method are:
[0042] (1) Low-speed stirring: add the pre-weighed monomer raw materials, resin raw materials, initiators, defoamers, leveling agents and pigments into the agitator in sequence, and pre-mix at low speed to obtain a premix; The rotating speed is 380r / min;
[0043] The raw material components include the following components in parts by weight: the monomer raw material is 26.6 parts of trimethylolpropane tetraacrylate, the resin raw material is 67.5 parts of aromatic polyester polyurethane acrylate, and the initiator is 2.9 parts of phenylphosphine oxide , Defoamer BYK067A 0.5 parts, leveling agent (BYK 373) 1 part, pigment (carbon black) 1.5 parts;
[0044] (2) High-speed stirring: Stir the premixed liquid in the mixer at high speed for 11 minutes to obtain a uniform mixed liquid; the speed of high-speed sti...
Embodiment 3
[0049] The technical solution adopted in this embodiment is a method for preparing a light-cured flexible resin for 3D printing. The steps of the preparation method are:
[0050] (1) Low-speed stirring: add the pre-weighed monomer raw materials, resin raw materials, initiators, defoamers, leveling agents and pigments into the agitator in sequence, and pre-mix at low speed to obtain a premix; The rotating speed is 650r / min;
[0051] The raw material components include the following components in parts by weight: monomer raw material polyethylene glycol diacrylate 19.1 parts, trimethylolpropane tetraacrylate 29.2 parts; resin raw material trifunctional aromatic polyether polyurethane acrylic acid 45.2 parts of ester, 0.55 parts of initiator phenylphosphine oxide, 0.55 parts of defoamer BYK 067A, 1 part of leveling agent (BYK 373), 1.2 parts of pigment (carbon black);
[0052] (2) High-speed stirring: Stir the premix in the mixer at high speed for 14 minutes to obtain a uniform mi...
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