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Low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition, and preparation method thereof

A refractory material and phenolic resin technology, applied in the field of refractory materials, can solve the problems of large-scale commercialization of unsuitable low-carbon and ultra-low carbon refractory materials, easy agglomeration of nano-carbon materials, and difficulty in uniform dispersion, etc. The effect of thermal shock resistance and slag erosion resistance retention, excellent spalling resistance

Pending Publication Date: 2019-09-17
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the addition of nano-carbon raw materials brings huge production costs and is not suitable for large-scale commercialization of low-carbon and ultra-low-carbon refractory materials. Secondly, the added nano-carbon raw materials are easy to agglomerate, and it is difficult to evenly disperse in the aggregate of refractory aggregates. Moderate but difficult to play its due role

Method used

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  • Low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition, and preparation method thereof
  • Low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition, and preparation method thereof
  • Low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A low-carbon magnesia-carbon refractory material containing in-situ exfoliated two-dimensional micro-nano graphite flakes combined with phenolic resin. The components are calculated by weight percentage: 60 wt% of fused magnesia particles, of which the particle size is 5-3mm. 15wt%, particle size 3 ~ 1mm accounted for 25wt% of the total ingredients, particle size ≤ 1mm accounted for 20wt% of the total ingredients; fused magnesia fine powder accounted for 28wt% of the total ingredients, particle size ≤ 0.074mm; phenolic resin binder 6wt% , 4 wt% of flake graphite, 0.1 wt% of nickel nitrate hexahydrate, 0.4 wt% of Al powder with a particle size of ≤0.074mm, 0.5 wt% of Si powder with a particle size of ≤0.074mm, and 1 wt% of high-temperature asphalt powder.

[0028] A method for preparing a low-carbon magnesium-carbon refractory material combined with a two-dimensional nano-graphite sheet phenolic resin exfoliated in situ, comprising the following steps:

[0029] (1) earli...

Embodiment 2

[0039] An ultra-low-carbon aluminum-carbon refractory material containing in-situ exfoliated two-dimensional micro-nano graphite flakes combined with phenolic resin, the components are calculated by weight percentage: 65wt% of sintered corundum particles, of which 18wt% of the total ingredients are sintered corundum particles with a particle size of 5-3mm %, particle size 3 ~ 1mm accounts for 25wt% of the total ingredients, particle size ≤ 1mm accounts for 22wt% of the total ingredients; sintered corundum fine powder accounts for 26wt% of the total ingredients, particle size ≤ 0.074mm; phenolic resin binder 5wt%, flake graphite 2wt%, 0.3wt% cobalt nitrate hexahydrate, 0.4wt% Al powder with a particle size ≤ 0.074mm, 0.4wt% Si powder with a particle size ≤ 0.074mm, and 0.9wt% high-temperature asphalt powder.

[0040] A method for preparing a low-carbon magnesium-carbon refractory material combined with in-situ exfoliated two-dimensional micro-nano graphite sheet phenolic resin, ...

Embodiment 3

[0051] A low-carbon magnesia-aluminum-carbon refractory material containing in-situ exfoliated two-dimensional micro-nano graphite flakes combined with phenolic resin. The components are calculated by weight percentage: fused magnesia particles 40wt%, of which the particle size is 5-3mm. 12wt% of the total ingredients, 16wt% of the total ingredients with a particle size of 3-1mm, 12wt% of the total ingredients with a particle size of ≤1mm; 25wt% of fused corundum particles, 7wt% of the total ingredients with a particle size of 5-3mm, 1mm accounted for 10wt% of the total ingredients, particle size ≤ 1mm accounted for 8wt% of the total ingredients; fused magnesia fine powder accounted for 13wt% of the total ingredients, particle size ≤ 0.074mm; fused corundum fine powder accounted for 11wt% of the total ingredients, Particle size ≤ 0.074mm; phenolic resin binder 6wt%, flake graphite 3wt%, iron nitrate nonahydrate 0.3wt%, particle size ≤ 0.074mm Al-Mg alloy powder 0.4wt%, particle...

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Abstract

The invention discloses a low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition. The low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition comprises magnesium carbon, aluminium carbon, and magnesium aluminium carbon refractory material; a fireproof aggregate and a flaky carbonization matter are taken as the main raw materials of the refractory material, a small amount of an antioxidant and high temperature asphalt powder are added, phenolic resin is taken as a binding agent, and a nitrate is taken as a catalyst. A preparation method comprises following steps: the carbonization matter, phenolic resin, and an alcohol solution of the nitrate are full mixed, and three-roller grinding peeling is adopted so obtain a micro-nano graphite flake containing mixture; water bath heating is carried out, the mixture is subjected to mixing, moulding, and baking curing with the fireproof aggregate, the antioxidant, and the high temperature asphalt powder so as to obtain a finished product. The low-carbon ultra-low-carbon carbon-containing refractory material containing in-situ peeled two-dimensional micro-nano graphite flake phenolic resin composition is capable of realizing catalytic growth of carbon nanotube, SiC, and MgAl2O4 whisker under service conditions; and the carbon content of prepared products are reduced greatly with maintained or increased strength, slag corrosion resistance, and thermal shock resistance.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a low-carbon and ultra-low-carbon carbon-containing refractory material containing in-situ exfoliated two-dimensional micro-nano graphite flakes combined with phenolic resin and a preparation method thereof. Background technique [0002] my country is a big country in steel production and consumption, and the development of the steel industry has provided a strong guarantee for and made great contributions to the sustainable, stable and healthy development of the national economy. However, the quality of my country's steel, especially high-quality special steel in the field of national defense and aerospace, still has a certain gap compared with developed countries. In addition to the great progress in smelting technology, the improvement of steel quality depends to a large extent on the improvement of the quality of refractory materials. Traditional refractory mate...

Claims

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Application Information

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IPC IPC(8): C04B35/043C04B35/103
CPCC04B35/043C04B35/103C04B2235/3279C04B2235/48C04B2235/425C04B2235/402C04B2235/428C04B2235/3275C04B2235/3272C04B2235/401C04B2235/602C04B2235/77C04B2235/96C04B2235/9676C04B2235/9684
Inventor 黄军同刘明强熊庆明王素清易帅冯志军张梦
Owner NANCHANG HANGKONG UNIVERSITY
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