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Nano layered calcium carbonate base bionic composite material and synthetic method thereof

A biomimetic composite material and nano-layered technology, which is applied in the treatment of calcium carbonate/strontium/barium, fibrous fillers, dyed low-molecular organic compounds, etc.

Inactive Publication Date: 2007-12-12
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These studies have played an important role in promoting the biomimetic synthesis of biomineralized materials, but they have not yet fully realized the control of the morphology and structure of calcium carbonate nanocrystals, and made them grow into natural calcium carbonate structures (such as molluscs). Highly regular calcium carbonate shells, semi-nacreous brachiopods) biomimetic materials

Method used

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  • Nano layered calcium carbonate base bionic composite material and synthetic method thereof
  • Nano layered calcium carbonate base bionic composite material and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Mix n-butylamine and calcium chloride at a mass ratio of 1:1, and dissolve it in water so that the mass ratio of calcium chloride to water is 0.0003:1, then add sodium carbonate, and make calcium chloride and sodium carbonate The molar ratio of the mixture is 1:1. After stirring for 0.5-1 hour, the mixture is transferred to a Teflon-lined reactor and heated in an oven at 80-200° C. for 6-20 hours. After the reaction, the reactor was taken out and cooled to room temperature naturally. Filter, wash with distilled water and ethanol, respectively, and dry at 80-120°C for 10-12 hours.

[0027] The obtained calcium carbonate complex is carried out X-ray diffraction (XRD) analysis, and the standard collection of illustrative plates of the XRD pattern of gained and calcium carbonate (Joint Committee Powder Diffraction Standard Card JCPDS: 47-1743) completely coincides, proves that prepared product Calcite-type calcium carbonate.

Embodiment 2

[0029] Mix n-butylamine and calcium chloride at a mass ratio of 3:1, and dissolve it in water so that the mass ratio of calcium chloride to water is 0.0003:1, then add sodium carbonate, and make calcium chloride and sodium carbonate The molar ratio is 1:1. After stirring for 0.5-1 hour, the mixture is transferred to a Teflon-lined reactor and heated in an oven at 80-200° C. for 6-20 hours. After the reaction, the reactor was taken out and cooled to room temperature naturally. Filter, wash with distilled water and ethanol, respectively, and dry at 80-120°C for 10-12 hours.

[0030] The obtained calcium carbonate complex is carried out X-ray diffraction (XRD) analysis, and the standard collection of illustrative plates of the XRD pattern of gained and calcium carbonate (Joint Committee Powder Diffraction Standard Card JCPDS: 47-1743) completely coincides, proves that prepared product Calcite-type calcium carbonate.

Embodiment 3

[0032] Mix n-butylamine and calcium chloride at a mass ratio of 5:1, and dissolve it in water so that the mass ratio of calcium chloride to water is 0.0003:1, then add sodium carbonate, and make calcium chloride and sodium carbonate The molar ratio is 1:1. After stirring for 0.5-1 hour, the mixture is transferred to a Teflon-lined reactor and heated in an oven at 80-200° C. for 6-20 hours. After the reaction, the reactor was taken out and cooled to room temperature naturally. Filter, wash with distilled water and ethanol, respectively, and dry at 80-120°C for 12 hours.

[0033] The obtained calcium carbonate complex is carried out X-ray diffraction (XRD) analysis, and the standard collection of illustrative plates of the XRD pattern of gained and calcium carbonate (Joint Committee Powder Diffraction Standard Card JCPDS: 47-1743) completely coincides, proves that prepared product Calcite-type calcium carbonate.

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Abstract

The invention relates to calcium carbonate based artificial material and the synthesizing method. It is characterized in that the method comprises following steps: adding low- molecular weight organic matter into system of calcium chloride and sodium carbonate according to a certain proportion, heating, organic molecule absorning selectively on crystal surface to nanocrystal growth along said crystal surface, so it is thin structure for crystal, assembling the crystal thin structure on three-dimensional orientation under interactive action of organic molecule and extension growth of crystal, getting staged layer structure crystal, and that is mentioned final product. The invention is of great importance for understanding biomineralization process and atificial synthesis for biological mineralising material.

Description

technical field [0001] The invention relates to a nano-layered calcium carbonate-based biomimetic composite material and a synthesis method thereof, more precisely, to a calcium carbonate-based biomimetic material composed of nano-thin layers and a synthesis method thereof, the calcium carbonate-based biomimetic material Under the guidance of organic molecules, the material is directional assembled into a nano-layered structure, which has a good similarity to natural pearls in structure, and belongs to bionic materials in biological materials. Background technique [0002] Biomineralized materials in nature have always attracted people's attention due to their regular surface morphology, ordered hierarchical structure, and good mechanical properties. Among many natural biomineralized materials (such as shells, eggshells, sea urchin fibers, snake shells, human teeth and bones, etc.), calcium carbonate composites are one of the most important and most valuable materials for re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/08C01F11/18
Inventor 祝迎春刘会娟杨钰
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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