CN110078500A - 一种牙科氧化锆全瓷材料及其制备方法 - Google Patents
一种牙科氧化锆全瓷材料及其制备方法 Download PDFInfo
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- CN110078500A CN110078500A CN201910508840.1A CN201910508840A CN110078500A CN 110078500 A CN110078500 A CN 110078500A CN 201910508840 A CN201910508840 A CN 201910508840A CN 110078500 A CN110078500 A CN 110078500A
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- zirconium oxide
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910001928 zirconium oxide Inorganic materials 0.000 title claims abstract description 50
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000000919 ceramic Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 29
- 239000003381 stabilizer Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 claims abstract description 17
- 238000000498 ball milling Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000022 bacteriostatic agent Substances 0.000 claims description 11
- 239000003086 colorant Substances 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 9
- 229910052845 zircon Inorganic materials 0.000 claims description 8
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000001408 fungistatic effect Effects 0.000 claims description 5
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium(III) oxide Inorganic materials O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 claims description 4
- XOJVHLIYNSOZOO-SWOBOCGESA-N Arctiin Chemical compound C1=C(OC)C(OC)=CC=C1C[C@@H]1[C@@H](CC=2C=C(OC)C(O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O)=CC=2)C(=O)OC1 XOJVHLIYNSOZOO-SWOBOCGESA-N 0.000 claims description 3
- 125000000030 D-alanine group Chemical group [H]N([H])[C@](C([H])([H])[H])(C(=O)[*])[H] 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- ORXJMBXYSGGCHG-UHFFFAOYSA-N dimethyl 2-methoxypropanedioate Chemical compound COC(=O)C(OC)C(=O)OC ORXJMBXYSGGCHG-UHFFFAOYSA-N 0.000 claims description 3
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(III) oxide Inorganic materials O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052861 titanite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 241001170080 Lonicera hypoglauca Species 0.000 claims 1
- 241001570521 Lonicera periclymenum Species 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 4
- 238000005303 weighing Methods 0.000 abstract 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 51
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- 241000205585 Aquilegia canadensis Species 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000009466 transformation Effects 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
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- 230000008859 change Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000007847 structural defect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 235000017858 Laurus nobilis Nutrition 0.000 description 1
- 241000388484 Mandragora caulescens Species 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000005212 Terminalia tomentosa Nutrition 0.000 description 1
- 244000125380 Terminalia tomentosa Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010987 cubic zirconia Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004053 dental implant Substances 0.000 description 1
- 239000005548 dental material Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 229910002078 fully stabilized zirconia Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
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Abstract
本发明涉及一种牙科氧化锆全瓷材料的制备方法,所述牙科氧化锆全瓷材料是通过以下制备方法来制备的:按照一定比例精确称取用于制备所述牙科氧化锆全瓷材料的原料:陶瓷粉料、造孔剂、粘结剂、稳定剂、助剂;将所述陶瓷粉料、稳定剂以及至少部分助剂在存在一定量溶剂或无溶剂条件下进行混合球磨或砂磨,得到物料粉体,将所述造孔剂、粘结剂以及其余部分助剂分别在加热或冷却的条件下加入所述物料粉体中,得到物料悬浮液并将其置于模具中冷却干燥,得到所述牙科氧化锆全瓷材料。
Description
技术领域
本发明涉及牙科材料技术领域,尤其涉及一种牙科氧化锆全瓷材料及其制备方法。
背景技术
全瓷修复技术因具有良好的生物相容性和优越的美观效果,成为口腔材料的较为理想的选择,在全瓷材料系统中,氧化锆陶瓷的强度、韧性等机械性能明显优于其他材料,是目前口腔材料关注和研究的焦点,它在氧化物陶瓷中占有重要地位。氧化锆陶瓷材料能够解决常规全瓷材料强度和韧性不足等问题,并且它属于生物惰性陶瓷类材料,在生物医学领域得到了广泛应用。
氧化锆生物陶瓷由高纯二氧化锆构成的一种近于惰性的生物陶瓷,其是通过将含有少量稳定剂的高纯二氧化锆经过高温烧结而制得,高稳定剂例如为氧化钙、氧化镁或氧化钇。不仅具有良好的耐磨性、抗生理腐蚀性和生物相容性,而且其断裂韧性性和强度均优于氧化铝陶瓷。主要用于人体关节、牙种植体等硬组织的修复和替换。
氧化锆具有极高的化学稳定性和热稳定性,其Tm=2953K,在生理环境中呈现惰性,具有很好的生物相容性。纯氧化锆具有三种同素异型体:单斜氧化锆(m相)、四方氧化锆(t相)以及立方氧化锆(c相),三种同素异型体存在于不同的温度范围,并在一定条件下可以发生晶型转化(相变)。氧化锆通常室温下仅以单斜相形式存在,但加入适量有利于稳定四方相的SrO、MgO、Y2O3、CaO、Sc2O3、La2O3及Mn2O3等氧化物与氧化锆之间形成固溶体,可以使得氧化锆的四方以及立方晶型在室温下仍保持稳定或亚稳态。通过应力诱导相变增韧使氧化锆陶瓷具有很高的力学性能。在承受外力作用时,其四方氧化锆(t相)向单斜氧化锆(m相)转化的过程需吸收较高的能量,使裂纹尖端应力松弛,增加裂纹扩散阻力而增韧,因而具有非常高的断裂韧性。部分稳定的氧化锆和氧化铝一样,生物相容性良好,在人体内稳定性高,且比氧化铝断裂韧性、耐磨性更高,有利减少植入物尺寸和实现低摩擦、磨损,用以制造牙根、骨、股关节、复合陶瓷人工骨、瓣膜等。
虽然氧化锆陶瓷具有优秀的力学性能,但其作为生物惰性材料却不能与骨组织形成化学结合,影响植入体的可靠性和长期疗效。现有技术中往往通过加入生物活性成分或表面改性的方法,使得氧化锆陶瓷具有一定的生物活性,要求其能够达到赋予氧化锆陶瓷生物活性的同时不会对其力学性能产生明显的影响,并且生物活性表面层的接合强度以及长期稳定性要能够满足临床应用的要求。
牙科常用的氧化锆陶瓷包括:四方相氧化锆陶瓷、氧化锆增韧陶瓷、部分稳定氧化锆陶瓷及纳米氧化锆与氧化铝复合陶瓷,这四种氧化锆陶瓷都含有稳定的四方相,并通过其四方氧化锆(t相)向单斜氧化锆(m相)的马氏体相变增韧,但微观结构各不相同,决定了不同的性能和加工工艺。
中国专利(公开号为CN107827457A)公开了一种多孔氧化锆陶瓷的制备方法,先将氧化锆和氧化钇按重量配比混合均匀制备混合料;然后制备聚丙烯醇水溶液和氯化铵水溶液:将所得混合料和溶液一起放入球磨机中进行球磨;向球磨后的浆料中加入粘结剂、淀粉溶液、表面活性剂,继续球磨30min;之后加入10%的氯化铵水溶液,高速下球磨3min,迅速倒入模具中成型;将模具和模具中的浆料放入烘箱中进行发泡;然后放入冷冻箱中冷冻,形成凝胶;将凝胶样品进行脱模,经干燥后烧结,得到多孔氧化锆陶瓷。本发明用磷酸锌作为粘结剂,提高了粘结强度,降低了污染,得到的多孔氧化锆陶瓷孔隙率高,孔径均匀,提高了多孔氧化锆陶瓷的性能。
然而上述专利并未消除现有技术中氧化锆晶粒的粒径大小对所制备的全瓷材料造成的影响:由于在氧化锆的粒径过大的情况下容易造成氧化锆晶粒的生长尺寸过大,使得其力学性能较差;而在氧化锆的粒径过小的情况下,氧化锆粉体之间容易发生团聚现象而保持有气泡,将导致脱模成型后的产品存在内部缺陷,使其力学性能较差。
此外,一方面由于对本领域技术人员的理解存在差异;另一方面由于发明人做出本发明时研究了大量文献和专利,但篇幅所限并未详细罗列所有的细节与内容,然而这绝非本发明不具备这些现有技术的特征,相反本发明已经具备现有技术的所有特征,而且申请人保留在背景技术中增加相关现有技术之权利。
发明内容
针对现有技术之不足,本发明提供了一种牙科氧化锆全瓷材料的制备方法,所述牙科氧化锆全瓷材料是通过以下制备方法来制备的:按照一定比例精确称取用于制备所述牙科氧化锆全瓷材料的原料:陶瓷粉料、造孔剂、粘结剂、稳定剂、助剂;将所述陶瓷粉料、稳定剂以及至少部分助剂在存在一定量溶剂或无溶剂条件下进行混合球磨或砂磨,得到物料粉体,将所述造孔剂、粘结剂以及其余部分助剂分别在加热或冷却的条件下加入所述物料粉体中,得到物料悬浮液并将其置于模具中冷却干燥,得到所述牙科氧化锆全瓷材料。
根据一种优选实施方式,所述造孔剂至少包括CaTiSiO5、(C6H10O5)n、(C10H14O4·C5H8O2)n、(C8H8)n中的一个或几个的组合。
根据一种优选实施方式,所述粘结剂至少包括[CH2CH]nCOOH、C35H49O29、C6H7O2(OH)2OCH2COONa、[CH2CHOH]n、[CH2CH2O]n中的一个或几个的组合。
根据一种优选实施方式,所述稳定剂至少包括SrO、Y2O3、Sc2O3、La2O3、MgO中的一个或几个的组合。
根据一种优选实施方式,所述助剂至少包括在进行混合球磨或砂磨时加入的分散剂,其中,所述分散剂至少包括C12H25NaO4S、C6H15O3N、CH3CH2OH、CH3(CH2)16COOH、C24H54O8P2、C6H14O、[C3H5NO]n中的一个或几个的组合。
根据一种优选实施方式,所述助剂至少包括用于加入所述物料粉体中进行对其上色的着色剂,其中,所述着色剂至少包括Fe2O3、Er2O3、Bi2O3、NiO、ZrSiO4、SiO2中的一个或几个的组合。
根据一种优选实施方式,所述陶瓷粉料至少包括摩尔含量为90~98%的ZrO2、摩尔含量为2~10%的Al2O3中的一个或几个的组合,所述溶剂至少包括去离子水或乙醇水溶液。
根据一种优选实施方式,所述助剂至少包括用于提高所述牙科氧化锆全瓷材料的抑菌效果的抑菌剂,其中,所述抑菌剂至少包括牛蒡萃取剂、杜仲萃取剂、忍冬萃取剂、红腺忍冬萃取剂中的一个或几个的组合。
根据一种优选实施方式,所述牙科氧化锆全瓷材料由如下组分组成:陶瓷粉料、造孔剂、粘结剂、稳定剂、助剂,其中,所述陶瓷粉料占所有组分原料的质量份数为45~75%,所述造孔剂占所有组分原料的质量份数为10~20%,所述粘结剂占所有组分原料的质量份数为6~12%,所述稳定剂占所有组分原料的质量份数为10~30%,所述助剂占所有组分原料的质量份数为5~20%,所述组分原料中各组分的质量份数之和为100%。
根据一种优选实施方式,所述助剂至少包括3~10%分散剂、0.5~5%着色剂、0.5~5%抑菌剂。
本发明提供的牙科氧化锆全瓷材料及其制备方法至少具有如下有益技术效果:
本发明提供的制备方法所得到的牙科氧化锆全瓷材料,通过添加稳定剂如SrO、Y2O3等与氧化锆晶体混合,有效地约束四方氧化锆(t相)转变至单斜氧化锆(m相)的转变过程,并通过添加陶瓷粉料如粒径在微米或亚微米级别的Al2O3等与氧化锆混合,有效地约束氧化锆晶粒的生长过程,结合稳定剂、陶瓷粉料以及造孔剂的作用叠加效应,有利于基于所述氧化锆所制备的物料悬浮液保持均匀稳定,有利于排出气泡而获得内部结构缺陷极少的脱模成型后的产品,且保证了脱模成型后的产品优异的力学性能与孔隙率,此外本发明提供的制备方法还通过添加抑菌剂保证所得到的牙科氧化锆全瓷材料的抑菌效果。
具体实施方式
本发明提供了一种牙科氧化锆全瓷材料的制备方法,所述牙科氧化锆全瓷材料是通过以下制备方法来制备的:将所述陶瓷粉料、稳定剂以及至少部分助剂在存在一定量溶剂或无溶剂条件下进行混合球磨或砂磨,得到物料粉体。将所述造孔剂、粘结剂以及其余部分助剂分别在加热或冷却的条件下加入所述物料粉体中,得到物料悬浮液。将物料悬浮液置于模具中冷却干燥,得到所述牙科氧化锆全瓷材料。现有技术中由于在氧化锆的粒径过大的情况下容易造成氧化锆晶粒的生长尺寸过大,使得其力学性能较差;而在氧化锆的粒径过小的情况下,氧化锆粉体之间容易发生团聚现象而保持有气泡,将导致脱模成型后的产品存在内部缺陷,使其力学性能较差。而本发明提供的制备方法所得到的牙科氧化锆全瓷材料,通过添加稳定剂如SrO、Y2O3等与氧化锆晶体混合,有效地约束四方氧化锆(t相)转变至单斜氧化锆(m相)的转变过程,并通过添加陶瓷粉料如粒径在微米或亚微米级别的Al2O3等与氧化锆混合,有效地约束氧化锆晶粒的生长过程,结合稳定剂、陶瓷粉料以及造孔剂的作用叠加效应,有利于基于所述氧化锆所制备的物料悬浮液保持均匀稳定,有利于排出气泡而获得内部结构缺陷极少的脱模成型后的产品,且保证了脱模成型后的产品优异的力学性能与孔隙率。
根据一种优选实施方式,造孔剂是指使材料中增加孔洞结构的添加剂,一般为易分解为气体的物质,本发明中所采用的造孔剂至少包括CaTiSiO5、(C6H10O5)n、(C10H14O4·C5H8O2)n、(C8H8)n、活性碳、纤维素甲醚中的一个或几个的组合。
根据一种优选实施方式,粘结剂是指为了提高压坯的强度或防止粉末偏析而添加到粉末中的可在烧结前或烧结过程中除掉的物质,本发明中所采用的粘结剂至少包括[CH2CH]nCOOH、C35H49O29、C6H7O2(OH)2OCH2COONa、[CH2CHOH]n、[CH2CH2O]n、乙烯吡咯烷酮聚合体或纤维素甲醚中的一个或几个的组合。
根据一种优选实施方式,常见的用于二氧化锆的稳定剂包括稀土或碱土氧化物,而且只有离子半径与Zr4+半径相差不超过40%的氧化物才能作为氧化锆的稳定剂目前稳定机理还不十分清楚。加入不同量的稳定剂可获得相组成不同的氧化锆陶瓷,若使部分t相ZrO2亚稳至室温,就得到部分稳定氧化锆;若使t相ZrO2全部亚稳至室温,获得仅含四方氧化锆的多晶体;若使c相ZrO2亚稳至室温,获得c相ZrO2单相材料,即全稳定氧化锆。部分稳定氧化锆和仅含四方氧化锆的多晶体中均含有可相变的四方相,是常用的相变增韧陶瓷。本发明中所采用的稳定剂至少包括SrO、Y2O3、Sc2O3、La2O3、MgO、CaO、Mn2O3中的一个或几个的组合。
根据一种优选实施方式,所述助剂至少包括在进行混合球磨或砂磨时加入的分散剂,分散剂是指在分子内同时具有亲油性和亲水性两种相反性质的界面活性剂,可均一分散那些难于溶解于液体的固体及液体颗粒,同时也能防止颗粒的沉降和凝聚。其中,本发明中所采用的分散剂至少包括C12H25NaO4S、C6H15O3N、CH3CH2OH、CH3(CH2)16COOH、C24H54O8P2、C6H14O、[C3H5NO]n、聚乙二醇月桂、纤维素及其衍生物中的一个或几个的组合。
根据一种优选实施方式,所述助剂至少包括用于加入所述物料粉体中进行对其上色的着色剂,着色剂即为在陶瓷上使用的颜料的通称,包括釉上、釉下以及釉料和坯体着色的陶瓷颜料,着色剂可以为粉末状的金属氧化物和其他用于陶瓷釉料中的混合物。其中,本发明中所采用的着色剂至少包括Fe2O3、Er2O3、Bi2O3、NiO、ZrSiO4、SiO2中的一个或几个的组合。
根据一种优选实施方式,所述陶瓷粉料至少包括二氧化锆、三氧化二铝、金属瓷粉、纯钛瓷粉、铸瓷粉中的一个或几个的组合,其中,二氧化锆的摩尔含量为90~98%、三氧化二铝的摩尔含量为2~10%。所述溶剂至少包括去离子水或乙醇水溶液。
根据一种优选实施方式,所述助剂至少包括用于提高所述牙科氧化锆全瓷材料的抑菌效果的抑菌剂,其中,所述抑菌剂至少包括牛蒡萃取剂、杜仲萃取剂、忍冬萃取剂、红腺忍冬萃取剂、毛花柱忍冬萃取剂、山银花萃取剂中的一个或几个的组合。
根据一种优选实施方式,所述牙科氧化锆全瓷材料由如下组分组成:陶瓷粉料、造孔剂、粘结剂、稳定剂、助剂,其中,所述陶瓷粉料占所有组分原料的质量份数为45~75%,所述造孔剂占所有组分原料的质量份数为10~20%,所述粘结剂占所有组分原料的质量份数为6~12%,所述稳定剂占所有组分原料的质量份数为10~30%,所述助剂占所有组分原料的质量份数为5~20%,所述组分原料中各组分的质量份数之和为100%。
根据一种优选实施方式,所述助剂至少包括按一定比例分开配置的分散剂、着色剂、抑菌剂。其中,分散剂的质量百分比为3~10%、着色剂的质量百分比为0.5~5%、抑菌剂的质量百分比为0.5~5%。本发明提供的制备方法还通过添加抑菌剂保证所得到的牙科氧化锆全瓷材料的抑菌效果。
需要注意的是,上述具体实施例是示例性的,本领域技术人员可以在本发明公开内容的启发下想出各种解决方案,而这些解决方案也都属于本发明的公开范围并落入本发明的保护范围之内。本领域技术人员应该明白,本发明说明书为说明性而并非构成对权利要求的限制。本发明的保护范围由权利要求及其等同物限定。
Claims (10)
1.一种牙科氧化锆全瓷材料的制备方法,其特征在于,用于制备所述牙科氧化锆全瓷材料的制备方法至少包括以下步骤:
按照一定比例称取用于制备所述牙科氧化锆全瓷材料的原料:陶瓷粉料、造孔剂、粘结剂、稳定剂、助剂,将所述陶瓷粉料、稳定剂以及至少部分助剂在存在一定量溶剂或无溶剂条件下进行混合球磨或砂磨,得到物料粉体,将所述造孔剂、粘结剂以及其余部分助剂分别在加热或冷却的条件下加入所述物料粉体中,得到物料悬浮液并将其置于模具中冷却干燥,得到所述牙科氧化锆全瓷材料。
2.根据权利要求1所述的制备方法,其特征在于,所述制备方法的造孔剂至少包括CaTiSiO5、(C6H10O5)n、(C10H14O4·C5H8O2)n、(C8H8)n中的一个或几个的组合。
3.根据前述权利要求之一所述的制备方法,其特征在于,所述制备方法的粘结剂至少包括[CH2CH]nCOOH、C35H49O29、C6H7O2(OH)2OCH2COONa、[CH2CHOH]n、[CH2CH2O]n中的一个或几个的组合。
4.根据前述权利要求之一所述的制备方法,其特征在于,所述制备方法的稳定剂至少包括SrO、Y2O3、Sc2O3、La2O3、MgO中的一个或几个的组合。
5.根据前述权利要求之一所述的制备方法,其特征在于,所述制备方法的助剂至少包括在进行混合球磨或砂磨时加入的分散剂,其中,所述分散剂至少包括C12H25NaO4S、C6H15O3N、CH3CH2OH、CH3(CH2)16COOH、C24H54O8P2、C6H14O、[C3H5NO]n中的一个或几个的组合。
6.根据前述权利要求之一所述的制备方法,其特征在于,所述制备方法的助剂至少包括用于加入所述物料粉体中进行对其上色的着色剂,其中,所述着色剂至少包括Fe2O3、Er2O3、Bi2O3、NiO、ZrSiO4、SiO2中的一个或几个的组合。
7.根据前述权利要求之一所述的制备方法,其特征在于,所述制备方法的陶瓷粉料至少包括摩尔含量为90~98%的ZrO2、摩尔含量为2~10%的Al2O3中的一个或几个的组合,所述溶剂至少包括去离子水或乙醇水溶液。
8.根据前述权利要求之一所述的制备方法,其特征在于,所述助剂至少包括用于提高所述牙科氧化锆全瓷材料的抑菌效果的抑菌剂,其中,所述抑菌剂至少包括牛蒡萃取剂、杜仲萃取剂、忍冬萃取剂、红腺忍冬萃取剂中的一个或几个的组合。
9.一种牙科氧化锆全瓷材料,其特征在于,所述牙科氧化锆全瓷材料由如下组分组成:陶瓷粉料、造孔剂、粘结剂、稳定剂、助剂,其中,所述陶瓷粉料占所有组分原料的质量份数为45~75%,所述造孔剂占所有组分原料的质量份数为10~20%,所述粘结剂占所有组分原料的质量份数为6~12%,所述稳定剂占所有组分原料的质量份数为10~30%,所述助剂占所有组分原料的质量份数为5~20%,所述组分原料中各组分的质量份数之和为100%。
10.根据权利要求9所述的牙科氧化锆全瓷材料,其特征在于,所述助剂至少包括3~10%分散剂、0.5~5%着色剂、0.5~5%抑菌剂。
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