A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of nano-diamond/boron nitride composite material
The invention belongs to the field of porous ceramic foam materials, and relates to a preparation method of a nano-diamond/boron nitride composite material, which is used for solving the problems of complicated process, high cost and poor porosity and specific surface area of the material in a template method and a chemical vapor deposition method. The nano-diamond is organically modified, so that the nano-diamond can be effectively and uniformly dispersed in the prepolymer, and a compact foam skeleton is formed together with the prepolymer. The preparation method comprises the following steps: uniformly coating a boron nitride precursor on a melamine skeleton by adopting an impregnation method, drying to form a diamond/boron nitride precursor foaming body, and calcining at high temperature to obtain the nano-diamond/boron nitride composite material. The nano-diamond/boron nitride composite material is high in porosity and large in specific surface area; and the pore diameter and pores can be adjusted by adjusting the content of the curing agent and the foaming agent. And due to large specific surface area and high thermal conductivity, the material can also be used in the fields of gas adsorption, catalyst carriers and the like.
本发明属于多孔陶瓷泡沫材料领域，涉及一种纳米金刚石/氮化硼复合材料的制备方法，用以解决模板法和化学气相沉积法存在的工艺复杂、成本高，材料的孔隙率和比表面积不佳的问题。通过对纳米金刚石进行有机改性，能有效使纳米金刚石均匀分散在预聚体中，一起形成致密的泡沫骨架。采用浸渍法将氮化硼前驱体均匀涂抹到三聚氰胺的骨架上，干燥形成金刚石/氮化硼前驱体发泡体，经高温煅烧后，获得纳米金刚石/氮化硼复合材料。该纳米金刚石/氮化硼复合材料孔隙率高、比表面积大；且易于填充，可通过调整固化剂、发泡剂含量实现孔径和孔隙的调整。并且由于其比表面积较大，高导热，还可用于气体吸附和催化剂载体等领域。
Preparation method of nano-diamond/boron nitride composite material
The invention belongs to the field of porous ceramic foam materials, and relates to a preparation method of a nano-diamond/boron nitride composite material, which is used for solving the problems of complicated process, high cost and poor porosity and specific surface area of the material in a template method and a chemical vapor deposition method. The nano-diamond is organically modified, so that the nano-diamond can be effectively and uniformly dispersed in the prepolymer, and a compact foam skeleton is formed together with the prepolymer. The preparation method comprises the following steps: uniformly coating a boron nitride precursor on a melamine skeleton by adopting an impregnation method, drying to form a diamond/boron nitride precursor foaming body, and calcining at high temperature to obtain the nano-diamond/boron nitride composite material. The nano-diamond/boron nitride composite material is high in porosity and large in specific surface area; and the pore diameter and pores can be adjusted by adjusting the content of the curing agent and the foaming agent. And due to large specific surface area and high thermal conductivity, the material can also be used in the fields of gas adsorption, catalyst carriers and the like.
本发明属于多孔陶瓷泡沫材料领域，涉及一种纳米金刚石/氮化硼复合材料的制备方法，用以解决模板法和化学气相沉积法存在的工艺复杂、成本高，材料的孔隙率和比表面积不佳的问题。通过对纳米金刚石进行有机改性，能有效使纳米金刚石均匀分散在预聚体中，一起形成致密的泡沫骨架。采用浸渍法将氮化硼前驱体均匀涂抹到三聚氰胺的骨架上，干燥形成金刚石/氮化硼前驱体发泡体，经高温煅烧后，获得纳米金刚石/氮化硼复合材料。该纳米金刚石/氮化硼复合材料孔隙率高、比表面积大；且易于填充，可通过调整固化剂、发泡剂含量实现孔径和孔隙的调整。并且由于其比表面积较大，高导热，还可用于气体吸附和催化剂载体等领域。
Preparation method of nano-diamond/boron nitride composite material
一种纳米金刚石/氮化硼复合材料的制备方法
SUN CHANGHONG (author) / DING ZIYANG (author) / LI LIANRONG (author) / LIU HENGYUAN (author) / BAI YUEBI (author) / ZHANG WANGXI (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Cubic boron nitride-nano polycrystalline diamond composite material and preparation method thereof
| European Patent Office | 2020
Preparation method of polycrystalline cubic boron nitride diamond composite material
| European Patent Office | 2021
Nano-diamond/cubic boron nitride block and preparation method therefor
| European Patent Office | 2015
Diamond-cubic boron nitride composite sheet and preparation method thereof
| European Patent Office | 2023