Quadrilateral zinc oxide/ nickel ferrite material and preparation method thereof

A nickel ferrite, tetragonal technology is applied in the field of tetragonal zinc oxide/nickel ferrite materials and their preparation, and achieves the effect of broad application prospects

Inactive Publication Date: 2012-10-03
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it possible to coat ferrite films on particles or powder substrates with poor heat resistance to prepare high-performance absorbing materials.

Method used

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  • Quadrilateral zinc oxide/ nickel ferrite material and preparation method thereof
  • Quadrilateral zinc oxide/ nickel ferrite material and preparation method thereof
  • Quadrilateral zinc oxide/ nickel ferrite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Take 0.1 g of tetragonal zinc oxide whiskers, rinse with deionized water repeatedly and set aside;

[0029] (2) Add 80ml of deionized water into the four-neck flask, stir it magnetically and pass in protective gas nitrogen, and heat to 80°C;

[0030] (3) keep warm and add tetragonal zinc oxide whiskers, stir (300r / min);

[0031] (4) Add 0.2mol / L of FeCl dropwise at a rate of 1mL / min and 4mL / min respectively 2 4H 2 45 mL of O solution, and 90 mL of 2 mol / L CH mixed at a volume ratio of 1:2 3 COONH 4 solution and 1.5g / L NaNO 2 solution, use a pH meter to measure the pH value of the feedback plating solution, and add NaOH solution dropwise to keep the pH of the reaction solution in the four-necked flask throughout the electroless plating process at 7.5;

[0032] (5) After reacting for 45 minutes, filter and rinse with deionized water repeatedly to obtain the product.

Embodiment 2

[0034] (1) Get 0.2 g of tetragonal zinc oxide whiskers, rinse with deionized water repeatedly and set aside;

[0035] (2) Add 80ml of deionized water into the four-neck flask, stir it magnetically and pass in protective gas nitrogen, and heat to 80°C;

[0036] (3) After the temperature is constant, add tetragonal zinc oxide whiskers and stir (400r / min);

[0037] (4) Add 0.4mol / L of FeCl dropwise at a rate of 2mL / min and 5mL / min respectively 2 4H 2 45 mL of O solution, and 90 mL of 2 mol / L CH mixed at a volume ratio of 1:2 3 COONH 4 solution and 3g / L NaNO 2 Solution, use a pH meter to measure the pH value of the feedback plating solution, and add NaOH solution dropwise to keep the pH of the reaction solution in the four-necked flask throughout the electroless plating process at 7;

[0038] (5) react for 30 minutes, and repeatedly filter and wash with deionized water to obtain the product.

Embodiment 3

[0040] (1) Get 0.4 g of tetragonal zinc oxide whiskers, rinse with deionized water repeatedly and set aside;

[0041] (2) Add 80ml of deionized water to the reaction vessel, stir it magnetically and pass in protective gas nitrogen, and heat to 80°C;

[0042] (3) After the temperature is constant, add tetragonal zinc oxide whiskers and stir (300r / min);

[0043](4) Add 0.4mol / L of FeCl dropwise at a rate of 2mL / min and 5mL / min respectively 2 4H 2 45 mL of O solution, and 90 mL of 2 mol / L CH mixed at a volume ratio of 1:2 3 COONH 4 solution and 4g / L NaNO 2 Solution, use a pH meter to measure the pH value of the feedback plating solution, and drip ammonia solution to keep the pH of the reaction solution in the reaction vessel in the whole electroless plating process between 8;

[0044] (5) After reacting for 60 minutes, filter and rinse with deionized water to obtain the product.

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Abstract

The invention discloses a quadrilateral zinc oxide whisker / nickel ferrite material and a preparation method thereof. The quadrilateral zinc oxide whisker / nickel ferrite material has good wave absorbing performance, and the preparation method of the quadrilateral zinc oxide whisker / nickel ferrite material realizes chemical plating for nickel ferrite on the surface of the quadrilateral zinc oxide whisker under the condition of low temperature (80 DEG C) so as to successfully prepare and obtain a layer of nickel ferrite on the surface of the quadrilateral zinc oxide whisker.

Description

technical field [0001] The invention relates to a quadrangular zinc oxide / nickel ferrite material and a preparation method thereof, in particular to a quadrangular zinc oxide whisker / nickel ferrite prepared by chemically plating nickel ferrite on the surface of the quadrangular zinc oxide whisker method for ferrite materials. Background technique [0002] Tetragonal zinc oxide whisker (T-ZnOw) is a lightweight whisker with a regular three-dimensional tetraneedle structure discovered so far. Due to the particularity of its quadrangular structure and the functions of high strength, high modulus, high temperature resistance, wear resistance, shock absorption, noise reduction, and ultraviolet absorption, it has been widely used in chemical industry, light industry, electronics and other fields. In addition, the special quadrangular structure and the combination of various functions endow the material with microwave absorption properties. Liu Jianhua et al. (Liu Jianhua, Sun Ji...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/50C30B29/16C30B29/62
Inventor 于美胡建平刘建华王承李松梅刘鹏瑞
Owner BEIHANG UNIV
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