Mesoporous calcium carbonate nanoparticles, preparation method thereof and composite material

A nanoparticle and calcium carbonate technology, applied in the field of material science, can solve the problems of difficulty in forming calcium carbonate nanoparticles with mesoporous structure, inability to create strong organic/inorganic interaction force, etc., and achieve the effect of promoting wound healing
CN114380313AActive Publication Date: 2022-04-22SHENZHEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN UNIV
Publication Date
2022-04-22

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Abstract

The invention relates to the technical field of material science, and provides mesoporous calcium carbonate nanoparticles, a preparation method thereof and a composite material. The calcium carbonate nano-particle is formed by compounding amorphous calcium carbonate and calcium carbonate crystal grains, the calcium carbonate nano-particle has a mesoporous structure, and the mesoporous size is 2-50 nm. The preparation method of the calcium carbonate nanoparticles comprises the following steps: completely dissolving a calcium chloride donor in an organic solvent, then adding an etching agent, and uniformly mixing to obtain a solution I1; putting the open container filled with the I1 into a closed container filled with ammonium bicarbonate, enabling the ammonium bicarbonate to be excessive in the reaction process, and standing to react for 3-10 days to obtain a reactant I2; and sequentially centrifuging, washing and drying the I2 to obtain a product I3. The calcium carbonate nanoparticles are mixed with a polymer to prepare a high-strength and high-toughness composite material.
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Description

technical field

[0001] The invention relates to the technical field of material science, in particular to a mesoporous calcium carbonate nanoparticle, a preparation method thereof and a composite material. Background technique

[0002] Calcium carbonate is the main inorganic component of many shellfish, and the composite structural material formed with collagen has excellent mechanical properties. Simulating this composite structure has important enlightening significance for the artificial synthesis of lightweight and high-performance composite materials. It is particularly important to understand and control the biomineralization process of calcium carbonate. Calcium carbonate nanopowder, as a conventional nano-reinforcement additive, has very limited enhancement effect on the mechanical properties of polymers, and the enhancement of strength and toughness is often incompatible, mainly because the force between calcium carbonate and polymer is Weak forces such as static ...

Claims

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