Method for preparing nano carbon fiber/inorganic powder antistatic material additive

A technology of nano-carbon fiber and inorganic powder, which is applied in the field of nano-materials, can solve problems such as environmental pollution, increase process complexity and product cost, and achieve the effects of high purity, moderate length-to-diameter ratio, and reduced usage

Inactive Publication Date: 2009-09-30
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the process complexity and product cost, and the use of strong acid treatment will also bring problems such as environmental pollution.

Method used

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  • Method for preparing nano carbon fiber/inorganic powder antistatic material additive
  • Method for preparing nano carbon fiber/inorganic powder antistatic material additive
  • Method for preparing nano carbon fiber/inorganic powder antistatic material additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 , Preparation of carbon nanofiber / mica antistatic material additive

[0038] 1.1. Supporting iron catalyst on mica surface

[0039] First measure the water absorption rate of mica (with a particle diameter of 10-100 μm), and the value is about 0.445ml water / g mica. Weigh 10.8505g of Fe(NO 3 ) 3 9H 2 O and it was dissolved in 4.205ml of water, and after it was completely dissolved, ferric nitrate solution was dripped dropwise into 18.5g of mica for equal volume impregnation, and then it was placed in a 120°C oven and dried for 12 hours to obtain a catalyst precursor. The catalyst precursor was ground and calcined at 600° C. for 3 hours to prepare 20 grams of 7.5 wt % iron / mica catalyst precursor.

[0040] 1.2. Growth of carbon nanofibers on mica surface

[0041] Take by weighing 6.0g iron / mica catalyst precursor and spread it evenly in the quartz boat, then the quartz boat is placed in the middle part of the fixed bed quartz reactor equipped with heating...

Embodiment 2

[0042] Example 2 , Preparation of carbon nanofiber / mica antistatic material additive

[0043] 2.1. Supporting iron catalyst on mica surface

[0044] Weigh 14.4673 Fe(NO 3 ) 3 9H 2 O and dissolve it in 4.25ml of water. After it is completely dissolved, drop the ferric nitrate solution dropwise into 19g of mica for equal volume impregnation, and then place it in an oven at 120°C to dry for 12 hours to obtain a catalyst precursor. Catalyst The precursor was ground and calcined at 600° C. for 3 hours to prepare 20 grams of 10.0 wt % iron / mica catalyst precursor.

[0045] 2.2. Growth of carbon nanofibers on mica surface

[0046] Take by weighing 6.0g iron / mica catalyst precursor and spread it evenly in the quartz boat, then the quartz boat is placed in the middle part of the fixed-bed quartz reactor equipped with heating furnace; In hydrogen (200ml / min) and argon ( 600ml / min) in a mixed atmosphere from room temperature to 600°C within 3 hours, and stay for 4 hours to reduce th...

Embodiment 3

[0047] Example 3 , Preparation of carbon nanofiber / mica antistatic material additive

[0048] 3.1. Nickel catalyst supported on mica surface

[0049] Weigh 4.9542g of Ni (NO 3 ) 2 ·6H 2 O and dissolve it in 4.25ml of water. After it is completely dissolved, drop the ferric nitrate solution dropwise into 19g of mica for equal volume impregnation, and then place it in an oven at 120°C to dry for 12 hours to obtain a catalyst precursor. Catalyst The precursor was ground and calcined at 600° C. for 3 hours to prepare 20 grams of a 5.0 wt % nickel / mica catalyst precursor.

[0050] 3.2. Growth of carbon nanofibers on mica surface

[0051] Take by weighing 6.0g nickel-mica catalyst precursor and spread it evenly in the quartz boat, then place the quartz boat in the middle of the fixed-bed quartz reactor equipped with heating furnace; / min) in a mixed atmosphere from room temperature to 600°C within 3 hours, and stay for 3 hours to reduce the catalyst, the particle size of nick...

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Abstract

The invention discloses a nano carbon fiber/inorganic powder antistatic additive and a preparation method thereof. The antistatic additive is a composite material obtained by growing nano carbon fiber on inorganic powder. The preparation method for the antistatic material additive comprises the following steps: A, loading a metal catalyst on the surface of the inorganic powder; and B, growing the nano carbon fiber on the surface of the inorganic powder. The nano carbon fiber/inorganic powder conductive composite material can be directly mixed with paint to prepare antistatic paint without treatment.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a carbon nanofiber / inorganic powder antistatic material additive and a preparation method thereof. Background technique [0002] Nano-carbon fiber is a new type of one-dimensional nano-carbon-based material, which has the characteristics of high aspect ratio, large specific surface area, high degree of graphitization and electrical conductivity. Carbon nanofibers can be synthesized by transition metal-catalyzed chemical vapor deposition of low-carbon hydrocarbons (natural gas, ethane, ethylene, etc.) or carbon monoxide. The price is far lower than that of carbon nanotubes and can reach the level of high-quality carbon black. Therefore, this material is very suitable for preparing antistatic (conductive) materials, such as antistatic, anti-electromagnetic radiation coatings, conductive polymer composite materials, and the like. [0003] Chinese patent CN1233758C discloses a preparati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/16C09D7/12
Inventor 隋志军周静红李平娄凤柳周兴贵
Owner EAST CHINA UNIV OF SCI & TECH
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