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Organism single layer protecting metal-group foam material, and its preparing method

A foam material and organic matter technology, which is applied in the field of organic matter single-layer protection gold cluster foam material and its preparation field, can solve the problem that the doping uniformity of the foam material needs to be improved, and achieve the effects of easy control, cost reduction and good application prospect.

Inactive Publication Date: 2007-07-25
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

The disadvantage is that after the ultrasonic dispersion stops, the metal powder will aggregate and settle to a certain extent, and the doping uniformity of the foam material needs to be improved

Method used

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  • Organism single layer protecting metal-group foam material, and its preparing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] First, 1 part of water-soluble mercaptosuccinic acid-protected gold MPC was dissolved in 10 parts of distilled water, and then the gold MPC aqueous solution was cast into a mold, and left at room temperature for 0.5 hours. Liquid nitrogen vapor is used to axially freeze the gold MPC aqueous solution sample in the mold from the bottom up. After 30 minutes, put the frozen sample into the freezer (about -20°C) of the freeze dryer to maintain the frozen state, and lower the freeze dryer. After reaching 100 Pa, keep the vacuum degree of the freezer chamber for 30 minutes; keep the vacuum degree of the freezer chamber constant, raise the temperature to room temperature at a rate of 1°C / min, and keep it in this state for 7 days to ensure that the solvent in the foam material system is completely dry. The dried foam material is demoulded to obtain a water-soluble organic single-layer protected gold cluster foam material. The resulting foam has poor density uniformity and is rel...

Embodiment 2

[0047] Firstly, 1 part of water-soluble mercaptosuccinic acid-protected gold MPC was dissolved in 14 parts of distilled water, and then the gold MPC aqueous solution was cast into a mold and left at room temperature for 5 hours. Use liquid nitrogen vapor to freeze the gold MPC aqueous solution sample in the mold axially from the bottom up. After 30 minutes, put the frozen sample into the freezer chamber (about -20°C) of the freeze dryer instrument to maintain the frozen state, and lower the freeze dryer instrument. After reaching 100 Pa, keep the vacuum of the freezer for 30 minutes; keep the vacuum of the freezer constant, raise the temperature to room temperature at a rate of 1°C / min, and keep it for 7 days to ensure that the solvent in the foam system is completely dry. The dried foam material is demoulded to obtain a water-soluble organic single-layer protected gold cluster foam material. The resulting foam has a bulk density of approximately 74 mg / cm 3 , the uniformity o...

Embodiment 3

[0049] Firstly, 1 part of water-soluble mercaptosuccinic acid-protected gold MPC was dissolved in 20 parts of distilled water, and then the gold MPC aqueous solution was cast into a mold and left at room temperature for 10 hours. Use liquid nitrogen vapor to freeze the gold MPC aqueous solution sample in the mold axially from the bottom up. After 30 minutes, put the frozen sample into the freezer chamber (about -20°C) of the freeze dryer instrument to maintain the frozen state, and lower the freeze dryer instrument. After reaching 100 Pa, keep the vacuum of the freezer for 30 minutes; keep the vacuum of the freezer constant, raise the temperature to room temperature at a rate of 1°C / min, and keep it for 7 days to ensure that the solvent in the foam system is completely dry. The dried foam material is demoulded to obtain a water-soluble organic single-layer protected gold cluster foam material. The resulting foam has a bulk density of approximately 54 mg / cm 3 , good density un...

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Abstract

A single organic substance layer protected conglomerated gold foam material with high content of gold, high uniformity and broad-spectrum applications, its two chemical formulas, and associated two preparing process are disclosed.

Description

technical field [0001] The invention relates to the field of polymer foam material preparation, in particular to an organic monolayer protected gold cluster (abbreviated as gold MPC, the same below) foam material and a preparation method thereof. Background technique [0002] Because polymer foam has a series of special properties such as low dielectric constant, low thermal conductivity, and high specific surface area, it is a widely used functional material. Specific application fields include dielectric materials, heat insulation materials, catalyst supports, radiation transport target materials, etc. Achieving metal doping in polymer foams can bring about some meaningful changes in the material's properties and broaden its range of potential applications. [0003] The existing metal-doped polymer foam materials are mostly prepared by doping with metal micro-powders and nano-powders, and the dispersion uniformity of the doped substances in the foam materials is often dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/02B22F9/24C22C1/08
Inventor 王宇光唐永建傅依备张林李波罗炫方瑜单雯雯杜凯杜爱民
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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