摘要:
A composition providing thermal, corrosion, and oxidation protection at high temperatures is based on a synthetic aluminum phosphate, in which the molar content of aluminum is greater than phosphorus. The composition is annealed and is metastable at temperatures up to 1400 DEG C.
摘要:
The invention relates to an ultralong hydroxyapatite nanowire/microwire, a method of preparing the same, a hydroxyapatite paper comprising the same and a preparation method thereof, and provides an ultralong hydroxyapatite nanowire/microwire having a length of tens to hundreds of micrometers and a diameter of tens to hundreds of nanometers. There is also provided a method of preparing the ultralong hydroxyapatite nanowire/microwire, a hydroxyapatite paper comprising the ultralong hydroxyapatite nanowire/microwire, and a method of preparing the hydroxyapatite paper.
摘要:
본 발명은 치아 및 뼈 재생용 하이드록시아파타이트 나노튜브를 제조하는 방법에 관한 것으로, 구체적으로 1) 나노 섬유막을 알칼리 용액으로 처리하여 표면을 활성화하는 단계; 2) 상기 표면 활성화된 나노 섬유막을 칼슘 이온 용액 및 인산 이온 용액에 교대로 침지시켜 나노 섬유막의 표면에 인산칼슘 핵을 형성하는 단계; 3) 상기 핵이 형성된 나노 섬유막을 칼슘 이온 및 인산 이온의 혼합용액에 침지시켜 핵을 성장시키는 단계; 및 4) 상기 핵이 성장된 나노 섬유막을 열처리하여 나노 섬유막을 제거하는 단계를 포함하는 나노튜브의 제조방법을 제공한다.
摘要:
Calcium-phosphate nanofiber matrices comprising randomly dispersed crystalline calcium-phosphate nanofibers are provided. The nanofibers are synthesized using sol-gel methods combined with electrospinning. The nanofibers may be hollow, solid or may comprise a calcium-phosphate shell surrounding a polymer containing inner core to which biologically functional additives may be added. The nanofiber matrices may be used to culture bone and dental cells, and as implants to treat bone, dental or periodontal diseases and defects.
摘要:
The invention relates to a filament comprising a core material (CM) comprising an inorganic powder (IP) and the core material (CM) is coated with a layer of shell material (SM) comprising a thermoplastic polymer. Further, the invention relates to a process for the preparation of said filament, as well as to three-dimensional objects and a process for the preparation thereof.
摘要:
The present invention provides the use of lanthanum phosphate for creating non wetting, non- reactive surfaces for molten metals like zinc and aluminium. By virtue of this property, lanthanum phosphate finds extensive applications in metallurgical industry for metal casting.
摘要:
The present invention provides the use of lanthanum phosphate for creating non wetting, non- reactive surfaces for molten metals like zinc and aluminium. By virtue of this property, lanthanum phosphate finds extensive applications in metallurgical industry for metal casting.
摘要:
The present invention provides the use of lanthanum phosphate for creating non wetting, non- reactive surfaces for molten metals like zinc and aluminium. By virtue of this property, lanthanum phosphate finds extensive applications in metallurgical industry for metal casting.
摘要:
The present invention relates to a method for producing a three-dimensional macroporous filament construct comprising interconnected microporous filaments showing a suitable surface roughness and microporosity. The method comprises the steps of: a) preparing a suspension comprising particles of a predetermined material, a liquid solvent, one or more binders and optionally one or more dispersants, b) depositing said suspension in the form of filaments in a predetermined three- dimensional pattern, preferably in a non-solvent environment, thereby creating a three-dimensional filament-based porous structure, c) inducing phase inversion, whereby said filaments are transformed from a liquid to a solid state, by exposing said filaments during the deposition of the filaments with a non-solvent vapour and to a liquid non-solvent, d) thermally treating the structure of step d) by calcining and sintering said structure. The invention further provides a three-dimensional macroporous filament construct comprising interconnected microporous filaments showing a specific surface roughness and microporosity. The invention also relates to various uses of the construct, including its use for the manufacture of a biomedical product, such as a synthetic bone implant or bone graft.
摘要:
Calcium-phosphate nanofiber matrices comprising randomly dispersed crystalline calcium-phosphate nanofibers are provided. The nanofibers are synthesized using sol-gel methods combined with electrospinning. The nanofibers may be hollow, solid or may comprise a calcium-phosphate shell surrounding a polymer containing inner core to which biologically functional additives may be added. The nanofiber matrices may be used to culture bone and dental cells, and as implants to treat bone, dental or periodontal diseases and defects.