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Method for preparing open-cell ZIF-8/polymer composite foam material by using solid-phase shearing and milling technology

A solid phase shear milling, ZIF-8 technology, applied in the field of biomedical materials, can solve the problems of unfavorable regular distribution of cells, affecting the uniformity of cell distribution, etc., to achieve uniform cell size and distribution, low cost, The effect of improving mechanical properties

Active Publication Date: 2021-06-11
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the agglomeration of fillers in the template method in the traditional process is not conducive to the regular distribution of cells. At the same time, in the process of the template method, the gap between the filler powder and the matrix polymer powder will also greatly affect the cells. Uniformity of size and distribution

Method used

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  • Method for preparing open-cell ZIF-8/polymer composite foam material by using solid-phase shearing and milling technology
  • Method for preparing open-cell ZIF-8/polymer composite foam material by using solid-phase shearing and milling technology
  • Method for preparing open-cell ZIF-8/polymer composite foam material by using solid-phase shearing and milling technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A method for preparing open-cell ZIF-8 / polymer composite foam material by solid phase shear milling technology, comprising the following steps in parts by weight:

[0049] (1) After mixing 40 parts of PVDF pellets and 60 parts of NaCl particles in total to 100 parts, they are added to a disc-type mechanochemical reactor for grinding and pulverization. After the grinding is completed, the PVDF / NaCl mixed powder is collected; among them, the disc-type The process parameters of the mechanochemical reactor are: the grinding pressure is 10 MPa, the surface temperature of the grinding disc is controlled by feeding a constant temperature circulating liquid medium with a temperature of 15 °C, the rotating speed of the grinding disc is 50 rpm, and the grinding cycle is 10 times;

[0050] (2) The PVDF / NaCl mixed powder obtained in step (1) is prepared into a block through a hot pressing molding process, and the block is immersed in deionized water until NaCl is completely dissolve...

Embodiment 2

[0058]A method for preparing open-cell ZIF-8 / polymer composite foam material by solid phase shear milling technology, comprising the following steps in parts by weight:

[0059] (1) After mixing 50 parts of PVDF pellets and 50 parts of NaCl particles in total to 100 parts, they are added to a disc-type mechanochemical reactor for grinding and pulverization. After the grinding is completed, the PVDF / NaCl mixed powder is collected; among them, the disc-type The process parameters of the mechanochemical reactor are: the grinding pressure is 10 MPa, the surface temperature of the grinding disc is controlled by feeding a constant temperature circulating liquid medium with a temperature of 15 °C, the rotating speed of the grinding disc is 50 rpm, and the grinding cycle is 10 times;

[0060] (2) The PVDF / NaCl mixed powder obtained in step (1) is prepared into a block through a hot pressing molding process, and the block is immersed in deionized water until NaCl is completely dissolved...

Embodiment 3

[0067] A method for preparing open-cell ZIF-8 / polymer composite foam material by solid phase shear milling technology, comprising the following steps in parts by weight:

[0068] (1) After mixing 60 parts of PVDF pellets and 40 parts of NaCl particles in total to 100 parts, they are added to a disc-type mechanochemical reactor for grinding and pulverization. After the grinding is completed, the PVDF / NaCl mixed powder is collected; among them, the disc-type The process parameters of the mechanochemical reactor are: the grinding pressure is 10 MPa, the surface temperature of the grinding disc is controlled by feeding a constant temperature circulating liquid medium with a temperature of 15 °C, the rotating speed of the grinding disc is 50 rpm, and the grinding cycle is 10 times;

[0069] (2) The PVDF / NaCl mixed powder obtained in step (1) is prepared into a block through a hot pressing molding process, and the block is immersed in deionized water until NaCl is completely dissolve...

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Abstract

The invention provides a method for preparing an open-cell ZIF-8 / polymer composite foam material by using a solid-phase shearing and milling technology. The method comprises the following steps: mixing 40-60 parts of piezoelectric polymer granules and 60-40 parts of water-soluble salt granules in total 100 parts, adding the mixture into a millstone type mechanochemical reactor for milling and crushing, then preparing a block body by using a forming process, adding a water-soluble salt into a block, soaking the block into deionized water until the water-soluble salt is completely dissolved, soaking the obtained piezoelectric polymer foam into a ZIF-8 diluted solution, and standing and freeze-drying to obtain the ZIF-8 / polymer composite foam material. The ZIF-8 / polymer composite foam material obtained by the method has better mechanical property and flexibility, and when the ZIF-8 / polymer composite foam material is used as a foam bone material, the piezoelectric effect can be exerted under the stress effect while an osteogenesis space is maintained in an oral stress environment, and continuous micro-current stimulation promotes osteogenesis in an operation area.

Description

technical field [0001] The invention belongs to the technical field of biomedical materials, and specifically relates to a method for preparing open-pore ZIF-8 / polymer composite materials using solid phase shear milling technology, especially for the mechanochemical method disclosed in Chinese authorized invention patent ZL 95111258.9 The reactor carried out the preparation of the open cell ZIF-8 / polymer composite described above. Background technique [0002] Sufficient alveolar bone is a necessary guarantee for maintaining the function and aesthetics of the oral and maxillofacial region. However, factors such as trauma, age-related changes, and periodontitis can all lead to insufficient alveolar bone mass. Dental clinicians often need bone augmentation techniques to meet multiple treatment needs such as implant restoration and periodontal treatment. Among them, Guided Bone Regeneration (hereinafter referred to as GBR) technology is currently the most widely used bone augm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/42C08J9/26C08L27/16C08L77/02C08L67/04A61L27/44A61L27/54A61L27/56
CPCC08J9/42C08J9/26A61L27/56A61L27/54A61L27/44C08J2327/16C08J2377/02C08J2367/04C08J2487/00C08J2201/0446C08J2201/0444A61L2400/04A61L2300/102A61L2300/624A61L2300/412C08L27/16C08L77/02C08L67/04
Inventor 李怡俊陈俊宇宋力蔡和覃思语
Owner SICHUAN UNIV
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