CN113307651A - 一种高强度多孔陶瓷义眼座的制备方法 - Google Patents
一种高强度多孔陶瓷义眼座的制备方法 Download PDFInfo
- Publication number
- CN113307651A CN113307651A CN202110509195.2A CN202110509195A CN113307651A CN 113307651 A CN113307651 A CN 113307651A CN 202110509195 A CN202110509195 A CN 202110509195A CN 113307651 A CN113307651 A CN 113307651A
- Authority
- CN
- China
- Prior art keywords
- pore
- preparation
- porous ceramic
- forming agent
- biscuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/067—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/447—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on phosphates, e.g. hydroxyapatite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3454—Calcium silicates, e.g. wollastonite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6022—Injection moulding
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/61—Mechanical properties, e.g. fracture toughness, hardness, Young's modulus or strength
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
本发明涉及一种高强度多孔陶瓷义眼座的制备方法,具体涉及一种多孔陶瓷球形义眼座的制备方法,包括:将生物陶瓷粉体、粘结剂、造孔剂和水搅拌混合,得到高粘度浆料;将所得高粘度浆料浇注到球形模具中成型,再经干燥后,得到素坯;将所得素坯在1000℃~1300℃下烧结1~2小时,陶瓷粉体结晶成型,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
Description
技术领域
本发明涉及一种多孔陶瓷球形义眼座的制备方法,具体涉及一种高强度多孔陶瓷球形义眼座的制备方法,属于生物材料的制备领域。
背景技术
眼外伤或者疾病会导致眼球摘除,为了避免眼球摘除后造成眼部畸变,进行义眼座植入是较为理想的方案。人工义眼座通常是球形,且需要具有50-500μm的连通大孔,≥70%的气孔率,≥2MPa的抗压强度和较低的密度。
目前,临床上使用的义眼座主要是以硅胶为代表的实心球体和羟基磷灰石(HA)为代表的多孔生物陶瓷球形义眼座。我国也有以珊瑚、动物骨或者化学合成HA等为原料制备多孔HA义眼座。但HA义眼座在高气孔率下通常力学性能较差,给手术操作和使用带来很多困扰。硅酸钙(CS)具有特殊的柱状晶形态,和HA、磷酸钙等活性生物材料相比,是一种高强度的生物材料。HP和CS混合陶瓷不仅具有密度低,和骨成分相近的特点,并且还具有较高的强度。
HA多孔义眼座通常采用颗粒堆积、3D打印以及浇注成型等制备,这些方法通常存在密度大、气孔尺寸小以及制备过程复杂等问题。同时,由于产品强度低(~2MPa),因此还存在产品不易加工的难题,从而导致了量产困难,产品价格高。陶瓷浇注成型不仅容易获得气孔分布均匀的材料,并且容易制备形状复杂的部件,特别适合制备具有明显个体特征的义眼座生物材料。
发明内容
针对上述问题,本发明的目的是为了获得一种工艺简单、成本低的易于制备特殊形状的高强度多孔陶瓷球形义眼座的方法。
一方面,本发明提供了一种高强度多孔陶瓷球形义眼座的制备方法,包括:
将生物陶瓷粉体、粘结剂、造孔剂和水搅拌混合,得到高粘度浆料;
将所得高粘度浆料浇注到球形模具中成型,再经干燥后,得到素坯;
将所得素坯在在1000℃~1300℃下烧结1~2小时成型,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
本发明中,羟丙基甲基纤维素或者异丁烯和马来酸酐共聚物作为粘结剂,将其溶于冷水形成溶胶,增加浆料粘度;干燥后,粘结剂形成凝胶,具有增加素坯强度的作用。
本发明的方法制备的素坯在空气中干燥后具有很好的强度,可以进行加工。本发明的制备方法简单,制得的材料具有高强度、易加工的优点。
较佳的,所述生物陶瓷粉体为羟基磷灰石、或羟基磷灰石和硅酸钙的混合物;优选地,所述羟基磷灰石和硅酸钙的混合物中硅酸钙的含量为生物陶瓷粉体总质量的20~40wt%。其中,若是CS含量太低,增强的效果不明显;由于CS降解率快,因此还要避免CS含量太高造成的在血管和细胞没长入前,义眼座材料的降解,其含量又不能太高。
较佳的,所述羟丙基甲基纤维素或者异丁烯和马来酸酐共聚物为生物陶瓷粉体质量的3~10wt%,优选5-8wt%。粘结剂含量过低,多孔陶瓷球形义眼座不能成型;粘结剂含量过高,陶瓷浆料粘度过高,造成注浆素坯性能不均匀,且气孔率小。
较佳的,所述造孔剂为聚甲基丙烯酸甲酯微球(PMMA)、聚苯乙烯(PS)微球中的至少一种;所述造孔剂的颗粒尺寸为100~500μm,质量含量为生物陶瓷粉体质量的5~15wt%。
较佳的,所述高粘度浆料的固含量为40wt%~70wt%;所述高粘度浆料的粘度为3~4Pa.s。固含量过低,陶瓷球形义眼座的强度太低甚至不能成型;固含量过高,陶瓷义眼座的气孔率太低,性能不符合使用要求。
较佳的,所述干燥的气氛为空气气氛,温度为室温15℃~45℃,时间为6~12小时。在烧结之前,将素坯在空气气氛中、500~700℃下脱粘1~3小时以脱除造孔剂。
较佳的,所述模具为弹性模具;优选,所述弹性模具为橡胶模具和塑料模具。
较佳的,所述素坯的压缩强度为1MPa~5MPa。
另一方面,本发明还提供了一种根据上述制备方法制备的高强度多孔陶瓷球形义眼座,所述多孔陶瓷球形义眼座的压缩强度为:5MPa~20MPa,气孔率50~85%,孔径为80~450μm。
有益效果:
本发明提供的制备方法不仅能够制备出结构复杂,孔均匀分布,且尺寸可以调控,具有较高力学性能的义眼座,而且成本低,工艺简单,适合工业化规模生产,因此具有很好的发展前景。
附图说明
图1为制备的多孔陶瓷球形义眼座的外观图片;
图2为不同固含量对多孔陶瓷球形义眼座形貌的影响,(a)固含量为30wt%,(b)固含量为40wt%,(c)固含量为50wt%,(d)固含量为80wt%;
图3为不同尺寸造孔剂PMMA对多孔陶瓷球形义眼座形貌的影响,(a)造孔剂尺寸~100μm,(b)造孔剂尺寸~500μm;
图4使用纯HA和添加了CS的HA粉制备的义眼座的形貌,(a)纯HA粉(标尺100μm),(b)添加了40wt%CS(标尺100μm)。
具体实施方式
以下通过下述实施方式进一步说明本发明,应理解,下述实施方式仅用于说明本发明,而非限制本发明。
在本发明中,以生物陶瓷粉体、粘结剂、造孔剂以及水等为原料,通过控制生物陶瓷粉体在水的中的固含量、粘结剂和造孔剂等的含量等影响因素,制备得到多孔陶瓷球形义眼座。其中,所述多孔陶瓷球形义眼座烧结后具有三维连通的孔,其压缩强度为:5-20MPa,气孔率50~85%,孔径为80~450μm。
以下示例说明本发明提供的高强度多孔陶瓷球形义眼座的制备方法。
将生物陶瓷粉体、粘结剂、造孔剂以及水搅拌形成均匀陶瓷浆料。所述混合浆料的固含量可为40~70wt%,优选50~60wt%,浆料的粘度为3-4Pa.s。所述搅拌时间可为2~4小时。生物陶瓷粉体选自HA和CS的混合物,CS的含量为生物陶瓷粉体总质量的20-40wt%,所述造孔剂可为PMMA和PS微球中的至少一种,颗粒尺寸可为100~500μm。所述造孔剂含量可为5~15wt%,优选5~10wt%。所述粘结剂的含量可为3wt%~10wt%,优选含量为5~8wt%。
将高粘度浆料浇注到模具中成型,空气干燥后6-12小时,得到素坯。所得多孔陶瓷球形义眼座的素坯的压缩强度可为:1~5MPa。所述成型模具为橡胶、塑料等具有弹性的模具。
将素坯通过烧结脱除造孔剂孔并结晶,得到具有三维连通孔结构的多孔陶瓷球形义眼座。其中,烧结温度范围可为1000℃~1300℃,优选1100℃~1250℃。烧结时间可为1~2h。优选,在烧结之前,将素坯在空气气氛中、500~700℃下脱粘1~3小时以脱除造孔剂。
下面进一步例举实施例以详细说明本发明。同样应理解,以下实施例只用于对本发明进行进一步说明,不能理解为对本发明保护范围的限制,本领域的技术人员根据本发明的上述内容作出的一些非本质的改进和调整均属于本发明的保护范围。下述示例具体的工艺参数等也仅是合适范围中的一个示例,即本领域技术人员可以通过本文的说明做合适的范围内选择,而并非要限定于下文示例的具体数值。
实施例1:
将6gHA+4gCS生物陶瓷粉、0.8g羟丙基甲基纤维素以及0.5gPMMA球(尺寸~100μm),4.84g水搅拌形成高粘度混合陶瓷浆料;将高粘度浆料浇筑到橡胶模具中成型,空气干燥后6h,得到素坯(压缩强度为4.8MPa);将素坯先在600℃下脱粘2小时脱除造孔剂,再在1250℃烧结2h,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
实施例2:
将8gHA+2gCS生物陶瓷粉、0.5g羟丙基甲基纤维素以及1gPMMA球(尺寸~250μm),17.25g水搅拌形成高粘度混合陶瓷浆料;将高粘度浆料浇筑到橡胶模具中成型,空气干燥后12h,得到素坯(压缩强度为1.3MPa);将素坯先在600℃下脱粘2小时脱除造孔剂,再1100℃烧结2h,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
实施例3:
将7gHA+3gCS生物陶瓷粉、0.5g羟丙基甲基纤维素以及1gPMMA球(尺寸~250μm),7.7g水搅拌形成高粘度混合陶瓷浆料;将高粘度浆料浇筑到橡胶模具中成型,空气干燥后8h,得到素坯(压缩强度为3.9MPa);将素坯先在600℃下脱粘2小时脱除造孔剂,再在1250℃烧结1h,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
实施例4:
将7gHA+3gCS生物陶瓷粉、0.8g异丁烯和马来酸酐共聚物以及0.5gPS球(尺寸~100μm),11.3g水搅拌形成高粘度混合陶瓷浆料;将高粘度浆料浇筑到橡胶模具中成型,空气干燥后12h,得到素坯(压缩强度为2.5MPa);将素坯先在600℃下脱粘2小时脱除造孔剂,再在1250℃烧结2h,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
实施例5
本实施例5中多孔硅酸钙陶瓷球形义眼座的制备过程参照实施例4,区别在于:加入10gHA生物陶瓷粉,没有CS粉,其余过程相同。所得素坯的压缩强度为0.5MPa。
对比例1
本对比例1中多孔硅酸钙陶瓷球形义眼座的制备过程参照实施例1,区别在于:粘结剂羟丙基甲基纤维素含量增加到1.5g,同时水含量减少为3g。由于粘结剂和固含量都很高,造成浆料粘度太大(≥4Pa.s),浇注成型及烧结后,内部气孔排不出去,制备的义眼座性能极不均匀。
对比例2
本对比例2中多孔硅酸钙陶瓷球形义眼座的制备过程参照实施例2,区别在于:不添加粘结剂。由于没有粘结剂,并且固含量较低,浆料粘度小,浇注后,长时间干燥(≥5天)不能固化成型,因此不能制备出陶瓷球形义眼座。
对比例3
本对比例3中多孔硅酸钙陶瓷球形义眼座的制备过程参照实施例3,区别在于:水含量为25.67g。由于固含量低(30wt%),不仅造成浆料浇注后干燥时间较长(~3天)。所得素坯的强度太低,无法进行测量。然后在600℃下脱粘2小时脱除造孔剂,再在1250℃烧结2h后,得到具有三维连通孔结构的多孔陶瓷球形义眼座的强度也很差。
表1为本发明实施例和对比例制备的多孔陶瓷球形义眼座的原料组成及性能参数:
本发明制备的一种高强度多孔陶瓷球形义眼座的外形如图1所示。图2为不同固含量对多孔陶瓷球形义眼座形貌的影响,(a)固含量为30wt%,(b)固含量为40wt%,(c)固含量为50wt%,(d)固含量为80wt%。从图可知,固含量低气孔大且多,固含量增加气孔减小,固含量太高,气孔分布不均匀。图3为不同尺寸造孔剂PMMA对多孔陶瓷球形义眼座形貌的影响,(a)造孔剂尺寸~100μm,(b)造孔剂尺寸~500μm。由图可以知道,多孔陶瓷是由宏观孔及微观小孔组成,具有较高的孔隙率和相互连通的开孔结构。图4为使用纯HA和添加了CS的HA粉制备的义眼座的形貌,(a)纯HA粉,(b)添加了40wt%CS。添加CS后,出现了柱状CS晶,极大增强了材料的强度。
Claims (9)
1.一种多孔陶瓷球形义眼座的制备方法,其特征在于,包括:
将生物陶瓷粉体、粘结剂、造孔剂和水搅拌混合,得到高粘度浆料;
将所得高粘度浆料浇注到球形模具中成型,再经干燥后,得到素坯;
将所得素坯在1000℃~1300℃下烧结1~2小时,陶瓷粉体结晶成型,得到具有三维连通孔结构的多孔陶瓷球形义眼座。
2.根据权利要求1所述的制备方法,其特征在于,所述生物陶瓷粉体为羟基磷灰石、或羟基磷灰石和硅酸钙的混合物;优选地,所述羟基磷灰石和硅酸钙的混合物中硅酸钙的含量为生物陶瓷粉体总质量的20~40wt%。
3.根据权利要求1或2所述的制备方法,其特征在于,所述粘结剂为羟丙基甲基纤维素或者异丁烯和马来酸酐共聚物中的一种,粘结剂的含量为生物陶瓷粉体质量的3~10wt%。
4.根据权利要求1-3中任一项所述的制备方法,其特征在于,所述造孔剂为聚甲基丙烯酸甲酯微球和聚苯乙烯微球中的至少一种;所述造孔剂的颗粒尺寸为100~500μm,质量含量为生物陶瓷粉体质量的5~15wt%。
5.根据权利要求1-4中任一项所述的制备方法,其特征在于,所述高粘度浆料的固含量为40wt%~70wt%;所述高粘度浆料的粘度为3 Pa.s~4 Pa.s。
6.根据权利要求1-5中任一项所述的制备方法,其特征在于,所述球形模具为弹性模具;优选,所述弹性模具为橡胶模具和塑料模具。
7.根据权利要求1-6中任一项所述的制备方法,其特征在于,所述干燥的气氛为空气气氛,温度为15℃~45℃,时间为6~12小时;在烧结之前,将素坯在空气气氛中、500~700℃下脱粘1~3小时以脱除造孔剂。
8.根据权利要求1-7中任一项所述的制备方法,其特征在于,所述素坯的压缩强度为1MPa~5 MPa。
9.一种根据权利要求1-8中任一项所述的制备方法制备的多孔陶瓷球形义眼座,其特征在于,所述多孔陶瓷球形义眼座的压缩强度为5 MPa~20MPa,气孔率50~85%,大孔径尺寸为80μm~450μm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110509195.2A CN113307651A (zh) | 2021-05-11 | 2021-05-11 | 一种高强度多孔陶瓷义眼座的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110509195.2A CN113307651A (zh) | 2021-05-11 | 2021-05-11 | 一种高强度多孔陶瓷义眼座的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113307651A true CN113307651A (zh) | 2021-08-27 |
Family
ID=77372975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110509195.2A Pending CN113307651A (zh) | 2021-05-11 | 2021-05-11 | 一种高强度多孔陶瓷义眼座的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113307651A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115645623A (zh) * | 2022-09-09 | 2023-01-31 | 西南医科大学附属医院 | 适用于3d纤维沉积法制备多孔钛的钛浆料及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0360244A1 (en) * | 1988-09-20 | 1990-03-28 | Asahi Kogaku Kogyo Kabushiki Kaisha | Porous ceramic sinter and process for producing same |
CN101700415A (zh) * | 2009-11-13 | 2010-05-05 | 中国科学院上海硅酸盐研究所 | 硅酸钙/羟基磷灰石复合生物陶瓷材料及其制备方法和用途 |
CN103961751A (zh) * | 2014-04-22 | 2014-08-06 | 卢建熙 | 多功能生物陶瓷义眼台、制备工艺及其应用 |
CN106518143A (zh) * | 2016-10-21 | 2017-03-22 | 华南理工大学 | 一种三维连通的蜂窝状多孔磷酸钙陶瓷人工骨材料及其制备方法 |
-
2021
- 2021-05-11 CN CN202110509195.2A patent/CN113307651A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0360244A1 (en) * | 1988-09-20 | 1990-03-28 | Asahi Kogaku Kogyo Kabushiki Kaisha | Porous ceramic sinter and process for producing same |
CN101700415A (zh) * | 2009-11-13 | 2010-05-05 | 中国科学院上海硅酸盐研究所 | 硅酸钙/羟基磷灰石复合生物陶瓷材料及其制备方法和用途 |
CN103961751A (zh) * | 2014-04-22 | 2014-08-06 | 卢建熙 | 多功能生物陶瓷义眼台、制备工艺及其应用 |
CN106518143A (zh) * | 2016-10-21 | 2017-03-22 | 华南理工大学 | 一种三维连通的蜂窝状多孔磷酸钙陶瓷人工骨材料及其制备方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115645623A (zh) * | 2022-09-09 | 2023-01-31 | 西南医科大学附属医院 | 适用于3d纤维沉积法制备多孔钛的钛浆料及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Chen et al. | 3D Bioprinting of shear-thinning hybrid bioinks with excellent bioactivity derived from gellan/alginate and thixotropic magnesium phosphate-based gels | |
CN108324987B (zh) | 一种中空多孔球形颗粒人工骨及其制备方法和应用 | |
US4195366A (en) | Whitlockite ceramic | |
JP4693992B2 (ja) | 発泡セラミック | |
CN112047753A (zh) | 多孔陶瓷及其制备方法和应用 | |
KR101268408B1 (ko) | 이중 기공구조를 갖는 물리적 발포용 다공질 인산칼슘 분말용 조성물 및 그 제조방법 | |
CN101716369B (zh) | 聚磷酸钙-磷酸三钙骨支架的制备方法 | |
CN111393181B (zh) | 基于直接凝固注模成型的全闭孔多孔莫来石陶瓷制备方法 | |
US7279219B2 (en) | Porous calcium phosphate ceramic and method for producing same | |
CN110092653A (zh) | 一种3D打印可降解β-磷酸三钙多孔生物陶瓷支架及其制备方法和用途 | |
CN113307651A (zh) | 一种高强度多孔陶瓷义眼座的制备方法 | |
CN107823712A (zh) | 一种用海螵蛸制备仿珊瑚人工骨的方法及其产品 | |
CN103602844A (zh) | 一种多孔生物医用金属、陶瓷或金属/陶瓷复合材料的制备方法 | |
CN108144113A (zh) | 一种生物活性玻璃多孔骨修复体材料及其制备方法 | |
JP3058174B2 (ja) | 多孔質セラミックス及びその製造用乾燥体並びにそれらの製造方法 | |
CA3107290C (en) | Biomimetic biomaterial and production method thereof | |
RU2585291C1 (ru) | Способ получения пористого керамического биоматериала на основе диоксида циркония | |
JP4443077B2 (ja) | 多孔質リン酸カルシウム系セラミックス焼結体の製造方法及び多孔質リン酸カルシウム系セラミックス焼結体 | |
CN114014647B (zh) | 一种硅酸锌复合磷酸三钙陶瓷支架及其制备方法与应用 | |
KR20130095014A (ko) | 다공성 골 대체물의 제조방법 | |
CN105568029A (zh) | 一种多孔钛的制备方法 | |
KR100858625B1 (ko) | 다공체 재료의 제조 방법 | |
RU2303580C2 (ru) | Способ изготовления гидроксиапатитовой керамики с бимодальным распределением пор | |
CN109394394A (zh) | 仿热狗结构生物活性支架及其制备方法和应用 | |
CN109793939B (zh) | 一种高比表面积磷酸钙陶瓷多孔支架及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210827 |
|
WD01 | Invention patent application deemed withdrawn after publication |