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A platform for research: civil engineering, architecture and urbanism
The invention discloses a calcium phosphate biological ceramic with high crystalline phase purity and a preparation method thereof, and the method comprises the following steps: 1) mixing citric acid, phytic acid and a part of calcium source in water to prepare a main solution; adding a cross-linking agent to prepare a mixed solution; 2) mixing the residual calcium source with an esterification dispersant to prepare a calcium pre-dispersant; (3) mixing the calcium pre-dispersing agent in the step (2), the mixed solution in the step (1) and an initiator, and reacting to prepare gel; and 4) calcining the gel in the step 3) to prepare the calcium phosphate biological ceramic. The method provided by the invention solves the problems of phase difference, low purity and the like of the product caused by non-uniform mixing, and meanwhile, phytic acid is used for replacing ammonium phosphate, so that the problems of environmental pollution and wastewater recovery caused by ammonium salt are avoided.
本发明公开了一种高晶相纯度磷酸钙类生物陶瓷及其制备方法，所述方法包括：1)将柠檬酸、植酸和部分钙源在水中混合，制备主溶液；并加入交联剂，制备混合液；2)将剩余钙源与酯化分散剂混合，制备钙预分散剂；3)将步骤2)中钙预分散剂、步骤1)中混合液与引发剂混合，进行反应，制备凝胶；4)将步骤3)中凝胶煅烧，制备所述磷酸钙类生物陶瓷。本发明方法解决了混料不均带来的产物的晶相差、纯度低等问题，同时以植酸代替磷酸铵，避免了铵盐带来的环境污染和废水回收的问题。
The invention discloses a calcium phosphate biological ceramic with high crystalline phase purity and a preparation method thereof, and the method comprises the following steps: 1) mixing citric acid, phytic acid and a part of calcium source in water to prepare a main solution; adding a cross-linking agent to prepare a mixed solution; 2) mixing the residual calcium source with an esterification dispersant to prepare a calcium pre-dispersant; (3) mixing the calcium pre-dispersing agent in the step (2), the mixed solution in the step (1) and an initiator, and reacting to prepare gel; and 4) calcining the gel in the step 3) to prepare the calcium phosphate biological ceramic. The method provided by the invention solves the problems of phase difference, low purity and the like of the product caused by non-uniform mixing, and meanwhile, phytic acid is used for replacing ammonium phosphate, so that the problems of environmental pollution and wastewater recovery caused by ammonium salt are avoided.
本发明公开了一种高晶相纯度磷酸钙类生物陶瓷及其制备方法，所述方法包括：1)将柠檬酸、植酸和部分钙源在水中混合，制备主溶液；并加入交联剂，制备混合液；2)将剩余钙源与酯化分散剂混合，制备钙预分散剂；3)将步骤2)中钙预分散剂、步骤1)中混合液与引发剂混合，进行反应，制备凝胶；4)将步骤3)中凝胶煅烧，制备所述磷酸钙类生物陶瓷。本发明方法解决了混料不均带来的产物的晶相差、纯度低等问题，同时以植酸代替磷酸铵，避免了铵盐带来的环境污染和废水回收的问题。
High-crystalline-phase-purity calcium phosphate biological ceramic and preparation method thereof
一种高晶相纯度磷酸钙类生物陶瓷及其制备方法
2023-12-15
Patent
Electronic Resource
Chinese
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