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Method for preparing Nano semiconductor particles enhanced white envelope fiber based composite material

A technology of nano-semiconductor and composite materials, which is applied in the preparation of nano-semiconductor particle-reinforced egg-film fiber-based composite materials and in the field of inorganic-organic functional composite materials, which can solve the problem of uneven distribution of bonding force, complex process control, and performance limitations of composite materials. To achieve the effect of improving structural stability and processability, solving complex preparation technology, and green manufacturing cost

Inactive Publication Date: 2009-01-07
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bonding force between the matrix formed by this technology and the inorganic particles is unevenly distributed, which affects the overall performance of the composite material. In addition, the complex process increases the cost and technical difficulty of industrial production.
There is also a patent No. 200510028873, titled "a porous composite material and manufacturing method of sintered microfiber structured micron-scale particles". The sintering of the microfiber joints forms a three-dimensional network structure, and the micron particles are bound in the microfibers in the three-dimensional network structure to obtain a reinforced porous composite material, but the sintering process will increase the particle size of the reinforcement, and in the matrix Uneven distribution and complex process control limit the performance of composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Rinse the egg shells with deionized water, soak them in 1mol / L hydrochloric acid for 1 hour to separate the egg membranes and clean them, then dry them in vacuum at room temperature and store them. Prepare 5ml of 0.05mol / L lead acetate solution, adjust the pH value to about 3 with 30ml of 2mol / L acetic acid solution, and immerse the egg membrane in this mixture for 12 hours. Then take it out and fully rinse it three times with deionized water, then put it into the freshly prepared sodium selenosulfate solution of 0.05 mol / L prepared, and soak it for 10 hours at room temperature. Carry out the second immersion treatment according to the above immersion sequence, the immersion time of each step is controlled within 3 hours, take out, wash and dry to obtain the nano-semiconductor lead selenide particle-reinforced egg-film fiber-based composite material.

Embodiment 2

[0022] Rinse the egg shells with deionized water, soak them in 6mol / L acetic acid for 2 hours to separate the egg membranes and clean them, and store them under vacuum at room temperature. Prepare 5ml of 0.05mol / L lead acetate solution, use 40ml of 3mol / L acetic acid solution to adjust its pH value to about 2, and immerse the egg membrane in this mixed solution for 11 hours. Then take it out and fully rinse it three times with deionized water, then put it into the prepared 0.05mol / L sodium sulfide solution, and soak it for 9 hours at room temperature. Carry out the second immersion treatment according to the above immersion sequence, the immersion time of each step is controlled at 1.5 hours, take out, wash and dry to obtain the nano-semiconductor lead sulfide particle-reinforced egg-film fiber-based composite material.

Embodiment 3

[0024] Rinse the egg shells with deionized water, soak them in 1.5mol / L nitric acid for 1 hour to separate the egg membranes and clean them, then store them in vacuum at room temperature. Prepare 5ml of 0.03mol / L cadmium chloride solution, adjust its pH value to about 13 with 40ml of 2mol / L ammonia solution, and then immerse the egg membrane in this mixed solution for 10 hours. Then take it out and fully rinse it four times with deionized water, then put it into the prepared 0.03mol / L sodium sulfide solution, and soak it for 9 hours at room temperature. Carry out the second immersion treatment according to the above immersion sequence, the immersion time of each step is controlled within 1 hour, take out, wash and dry to obtain the nano-semiconductor cadmium sulfide particle-reinforced egg-film fiber-based composite material.

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Abstract

A process for preparing the composite material based on egg film fibers and reinforced by semiconductor nanoparticles includes sequentially immersing the egg film in the solution of metallic salt and then in the solution of Se (or S) source, and regulating the concentration of immersing liquid, immersing times and reaction time for controlling the shape and size of semiconductor nanoparticles and their distribution on substrate.

Description

technical field [0001] The invention relates to a method for preparing egg membrane fiber-based composite materials reinforced by nano-semiconductor particles. Specifically, the egg membrane is used as a matrix material, and its fine network structure is used as a carrier to synthesize a nano-scale semiconductor material, and finally nano-semiconductor particle-reinforced egg is obtained. The inorganic-organic functional composite material of membrane fiber belongs to the technical field of advanced composite materials. Background technique [0002] Inorganic-organic functional nanocomposites have always been a hot spot in material science research. Its development caters to the new demands on materials from the rapid development of information, biotechnology, energy, environment, advanced manufacturing technology and national defense in the 21st century. The directions of miniaturization, intelligence, high integration of components, high-density storage and ultra-fast tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00B01J14/00
Inventor 苏慧兰王娜张荻
Owner SHANGHAI JIAOTONG UNIV