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A kind of preparation method of nano-gold doped deuterated foam microsphere

A technology of foam microspheres and nano-gold, which is applied in the direction of nanotechnology, nanotechnology, metal processing equipment, etc., can solve the problems of poor foam formability, low metal doping, and high processing difficulty, and achieve low difficulty, large specific surface area, The effect of excellent formability

Active Publication Date: 2022-02-15
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, for nano-gold doped foam microspheres, there are disadvantages such as high processing difficulty, poor foam formability, low metal doping amount and uneven dispersion.

Method used

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  • A kind of preparation method of nano-gold doped deuterated foam microsphere
  • A kind of preparation method of nano-gold doped deuterated foam microsphere
  • A kind of preparation method of nano-gold doped deuterated foam microsphere

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A preparation method of nano-gold doped deuterated foam microspheres, comprising the following steps:

[0030] Step 1. Add 300mg of deuterated p-divinylbenzene and 100mg of styrene into the reactor and mix evenly, then add 6mg of initiator and 3mL of organic solvent and stir, then add 20mg of 15nm gold nanoparticles, 6mg of dispersant and 60mL of water phase , under the protection of an inert atmosphere, stirred and reacted at 80°C for 1 hour, and formed foam pellets in the water phase; the initiator was azobisisobutyronitrile; the organic solvent was dibutyl phthalate; the The dispersant is poly(4-vinylphenol); the water phase is 5wt% polyethylene glycol aqueous solution;

[0031] Step 2, separate the foam pellets in the water phase, and then use CO 2 Supercritical drying, the obtained foam skeleton material is deuterated p-divinylbenzene nano-gold doped deuterated foam microspheres; the specific surface area of ​​the nano-gold doped deuterated foam microspheres prepa...

Embodiment 2

[0033] A preparation method of nano-gold doped deuterated foam microspheres, comprising the following steps:

[0034] Step 1. Add 300mg of deuterated p-divinylbenzene and 100mg of styrene into the reactor and mix evenly, then add 6mg of initiator and 3mL of organic solvent and stir, then add 20mg of 15nm gold nanoparticles, 15mg of dispersant and 60mL of water phase , under the protection of an inert atmosphere, stirred and reacted at 80°C for 1 hour, and formed foam pellets in the water phase; the initiator was azobisisobutyronitrile; the organic solvent was dibutyl phthalate; the The dispersant is poly(4-vinylphenol); the water phase is 5wt% polyethylene glycol aqueous solution;

[0035] Step 2, separate the foam pellets in the water phase, and then use CO 2 Supercritical drying is carried out to obtain nano-gold doped deuterated foam microspheres whose foam skeleton material is deuterated p-divinylbenzene. The specific surface area of ​​the nano-gold doped deuterated foam...

Embodiment 3

[0037] A preparation method of nano-gold doped deuterated foam microspheres, comprising the following steps:

[0038] Step 1. Add 300mg of deuterated p-divinylbenzene and 100mg of styrene into the reactor and mix evenly, then add 6mg of initiator and 3mL of organic solvent and stir, then add 20mg of 15nm gold nanoparticles, 21mg of dispersant and 60mL of water phase , under the protection of an inert atmosphere, stirred and reacted at 80°C for 1 hour, and formed foam pellets in the water phase; the initiator was azobisisobutyronitrile; the organic solvent was dibutyl phthalate; the The dispersant is poly(4-vinylphenol); the water phase is 5wt% polyethylene glycol aqueous solution;

[0039] Step 2, separate the foam pellets in the water phase, and then use CO 2 Supercritical drying is carried out to obtain nano-gold doped deuterated foam microspheres whose foam skeleton material is deuterated p-divinylbenzene. The specific surface area of ​​the nano-gold doped deuterated foam...

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Abstract

The invention discloses a preparation method of nano-gold doped deuterated foam microspheres, which comprises the following steps: step 1, adding deuterated p-divinylbenzene and styrene into a reactor and mixing them uniformly, and then adding an initiator and an organic solvent Stir, then add gold nanoparticles, dispersant and water phase, under the protection of an inert atmosphere, stir and react at 60-120°C for 1-3 hours, and form foam balls in the water phase; step 2, the foam in the water phase The beads are separated and then dried to obtain nano-gold doped deuterated foam microspheres whose foam skeleton material is deuterated p-divinylbenzene. The nano-gold doped deuterated foam microspheres provided by the present invention have excellent processability, and the doping distribution of gold elements is uniform, and the prepared nano-gold doped deuterated foam microspheres have a large specific surface area. At the same time, the preparation of the present invention The method is simple and efficient, and greatly reduces the difficulty of the process.

Description

technical field [0001] The invention relates to the field of preparation of foam microspheres, in particular to a method for preparing nano-gold doped deuterated foam microspheres. Background technique [0002] Low-density, microporous polymer foam is one of the important target materials for inertial confinement fusion (ICF) physics experiments, and has important applications in laser and ion beam physics experiments, laser-matter interaction research, and material state equation research. . Polymer foams doped with heavy metal elements can provide information for physical diagnosis, such as important information such as ablation pressure and ablation depth during the implosion process, and shielding of epithermal electrons. Among them, the chemical properties of gold are relatively stable, and it is a metal element with a high atomic number required for ICF physical experiments. By doping it, high-purity doped polymer foam can be obtained. [0003] The doping methods of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/14B22F1/054B82Y30/00
CPCB22F1/0655B22F1/07B22F1/14B22F1/054
Inventor 罗炫鄢林刘小林张庆军杨睿戆
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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