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High-wear-resistance composite material for preparing porcelain teeth and preparation method of high-wear-resistance composite material
Active Publication Date: 2022-07-29
中山市邦特生物科技有限公司
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Problems solved by technology
However, zirconia, like glass, has the problems of high brittleness and weak bending resistance. Therefore, in order to avoid fracture, zirconia all-ceramic restorations often require a certain thickness. The increase in thickness means that more tooth tissue needs to be ground. , great damage to teeth
In addition, the inherent brittleness of zirconia increases the difficulty of manufacturing zirconia all-ceramic restorations, and microcracks are easily formed during the processing, which in turn causes the crown edge to break
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Embodiment 1
[0028] The specific raw materials are weighed according to Table 1, and the preparation steps are as follows:
[0029] (1) Mix 85% ethanol with 1 / 4 of the formula amount and isopropyl tridioctyl phosphate acyloxy titanate, stir at 50°C for 15min, then add titanium dioxide, and carry out the reaction at 90°C for 1.5h to obtain titanium Titanium dioxide modified by acid ester coupling agent;
[0030] (2) Mix 85% ethanol of 1 / 4 of the formula with KH590, stir at 50°C for 15min, then add silica, and carry out the reaction at 110°C for 1.5h to obtain silica modified with a silane coupling agent;
[0031] (3) Mix 85% ethanol of 1 / 4 of the formula with Si-75, stir at 50°C for 15min, then add zirconium dioxide, and carry out the reaction at 120°C for 2.5h to obtain silane coupling agent-modified zirconium dioxide ;
[0036] The specific raw materials are weighed according to Table 1, and the preparation steps are as follows:
[0037] (1) Mix 85% ethanol with 1 / 4 of the formula weight and isopropyl tridioctyl phosphate acyloxy titanate, stir at 60°C for 10 minutes, then add titanium dioxide, and react at 95°C for 1 hour to obtain titanic acidTitanium dioxide modified by lipid coupling agent;
[0038] (2) Mixing 85% ethanol with 1 / 4 of the formula amount and KH590, stirring at 60°C for 10min, then adding silica, and reacting at 120°C for 1h to obtain silica modified with a silane coupling agent;
[0039] (3) Mix 85% ethanol of 1 / 4 of the formula with Si-75, stir at 60°C for 10min, then add zirconium dioxide, and carry out the reaction at 120°C for 2.5h to obtain silane coupling agent-modified zirconium dioxide ;
[0040] (4) the titanate coupling agent-modified titanium dioxide, the silane coupling agent-modified silica, the silane coupling agent-modified zirconium dioxide and nano silver...
Embodiment 3
[0044] The specific raw materials are weighed according to Table 1, and the preparation steps are as follows:
[0045] (1) Mix 85% ethanol with 1 / 4 of the formula amount and isopropyl tridioctyl phosphate acyloxy titanate, stir at 60°C for 15min, then add titanium dioxide, and carry out the reaction at 95°C for 1.5h to obtain titanium Titanium dioxide modified by acid ester coupling agent;
[0046] (2) Mixing 85% ethanol of 1 / 4 of the formula amount with KH590, stirring at 60°C for 15min, then adding silica, and reacting at 120°C for 1.5h to obtain silica modified with a silane coupling agent;
[0047] (3) Mix 85% ethanol of 1 / 4 of the formula with Si-75, stir at 60°C for 15min, then add zirconium dioxide, and carry out the reaction at 150°C for 2.5h to obtain silane coupling agent-modified zirconium dioxide ;
[0048] (4) the titanate coupling agent-modified titanium dioxide, the silane coupling agent-modified silica, the silane coupling agent-modified zirconium dioxide and n...
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Abstract
The invention relates to the technical field of medical materials, in particular to a high-wear-resistance composite material for preparing porcelain teeth and a preparation method of the high-wear-resistance composite material. The high-wear-resistance composite material is prepared from the following raw materials in parts by weight: 20 to 30 parts of metaloxygen compound, 8 to 15 parts of metalnitridewhisker, 18 to 30 parts of titanium dioxide, 10 to 30 parts of silicon dioxide, 30 to 40 parts of zirconium dioxide, 5 to 8 parts of silver preparation, 120 to 160 parts of 80% ethanol and 50 to 70 parts of deionized water. The titanium dioxide modified by the titanatecoupling agent is added, so that the corrosive wear of the artificial saliva to the porcelain tooth material can be slowed down to a certain extent, and the life cycle of the porcelain tooth is prolonged; the silanecoupling agent modified zirconium dioxide is added, so that the mechanical property of the porcelain tooth material can be enhanced, and the porcelain tooth material can meet the use requirements of people in daily life.
Description
technical field [0001] The invention relates to the technical field of medical materials, in particular to a highly wear-resistant composite material for preparing porcelain teeth and a preparation method thereof. Background technique [0002] Zirconia all-ceramic material is one of the emerging oral restorative materials in recent years, and it is widely used in the medical field. Zirconia all-ceramic material has many advantages such as excellent visual effect, good biocompatibility, wear resistance and corrosion resistance, and sufficient strength, and is often used to make porcelain crowns and bridges, porcelain veneers, porcelain inlays, etc. High end restorations. However, like glass, zirconia has problems such as high brittleness and weak bending resistance. Therefore, in order to avoid fracture, zirconia all-ceramic restorations often require a certain thickness. The increase in thickness means that more tooth tissue is required to be ground. , the damage to the te...
Claims
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Application Information
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