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Dental 3D printing wax material and its preparation method based on mjp technology
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A 3D printing and dental technology, applied in the field of 3D printing materials, can solve the problem of scarcity of 3D printing wax materials for dentistry
Active Publication Date: 2021-05-07
GUANGZHOU DEXIN WAX PROD
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[0006] Based on this, it is necessary to solve the problem of how to solve the problem of scarcity of high-performance dental 3D printing wax materials applied to multi-nozzle jetting (MJP) technology, and provide a new high-performance dental 3D printing wax material based on MJP technology and its preparation method
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preparation example Construction
[0041] See figure 1 , the preparation method of dental 3D printing wax material based on MJP technology in one embodiment of the present invention, comprises the following steps:
[0042] S10, according to the mass parts, mix 20-50 parts of microcrystalline wax, 10-30 parts of montan wax, 10-30 parts of vegetable wax and 5-15 parts of Fischer-Tropsch wax, and evenly melt Afterwards, the basic wax liquid is obtained.
[0043] Preferably, according to the number of parts by mass, 20-50 parts of microcrystalline wax, 10-30 parts of montan wax, 10-30 parts of vegetable wax and 5-15 parts of Fischer-Tropsch wax are mixed evenly During melting operation: maintain the mixing temperature at 100°C-110°C. The above raw materials are all solid, and the mixing temperature is maintained at 100°C-110°C, which can melt each raw material and make it better evenly mixed.
[0044] S20. According to the parts by mass, 5 parts to 20 parts of the toughening agent are added to the basic wax liqu...
Embodiment 1
[0060] Add 20g 85# microcrystalline wax, 30g montan wax, 20g wood wax, 5g rice bran wax and 5g Fischer-Tropsch wax into the reaction kettle, control the temperature at 100°C, and obtain the basic wax liquid after uniform melting.
[0061] Add 19.3g of ethylene-vinyl acetate copolymer, 0.5g of sorbitan monostearate, 0.1g of dibutyl hydroxytoluene and 0.1g of Xinbo SB3602 into the above-mentioned basic wax liquid, control the temperature at 110°C, and use 800r / After stirring for 1.5 h at a stirring speed of min, a wax liquid was obtained.
[0062] Filter the above wax liquid through suction filter bottles with 100 μm, 20 μm and 5 μm filter elements while it is hot, and fill the filtrate to obtain dental 3D printing wax based on MJP technology.
Embodiment 2
[0064] Add 48.7g 70# microcrystalline wax, 12g montan wax, 18g 3# carnauba wax and 6.5g Fischer-Tropsch wax into the reaction kettle, control the temperature at 100°C, and obtain the basic wax liquid after uniform melting.
[0065] Add 8g of polyethylene with a molecular weight of 3000-5000, 6.2g of amorphous α-olefin copolymer, 0.45g of polysorbate-80, 0.05g of 2,6-di-tert-butyl-p-cresol and 0.1g of Xinbo SB3422A Into the above basic wax liquid, control the temperature at 100°C, stir at a stirring speed of 650r / min for 2h, and obtain the wax liquid.
[0066] Filter the above wax liquid through suction filter bottles with 100 μm, 20 μm and 5 μm filter elements while it is hot, and fill the filtrate to obtain dental 3D printing wax based on MJP technology.
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Abstract
The invention relates to a dental 3D printing wax material based on MJP technology, comprising the following raw materials in parts by mass: 20-50 parts of microcrystalline wax, 10-30 parts of montan wax, 10-30 parts of plants wax, 5-15 parts Fischer-Tropsch wax and 5-20 parts toughening agent. The 3D printing wax material for dentistry based on MJP technology has the characteristics of rigidity balance, high precision, moderate kinematic viscosity and good film-forming performance. When applied to MJP technology, there will be no plugging, soft collapse and casting lost wax with ash residue The phenomenon, which meets the requirements of MJP technology for fast printing speed and high precision, and has good wax loss performance in casting. In addition, the above-mentioned 3D printing wax materials for dentistry based on MJP technology can meet the high precision requirements of 3D printing dentistry.
Description
technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a dental 3D printing wax material based on MJP technology and a preparation method thereof. Background technique [0002] Three-dimensional printing (3D printing) is a digital model file (usually STL or CAD file) as the basis, using powdery, linear, or bulk plastic, wax or metal materials to realize the object through layer-by-layer printing. The technology of body construction, also known as additive manufacturing, covers many different categories of technologies, such as fused deposition, laser sintering, photocuring, binder jetting, etc. [0003] The application of 3D printing technology in the field of dental restoration mainly includes orthodontics, dental implants and removable dentures. At present, 3D printing technology has made breakthroughs in orthotics. In foreign countries, ClearCorrect has used Stratasys' 3D printing equipment and materials to produce ...
Claims
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Application Information
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