Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of composite phenolic resin for refractory material

A phenolic resin and refractory technology, applied in the field of refractory materials, can solve the problems of poor oxidation resistance, difficult graphitization, and poor thermal shock stability of refractory materials, and achieve strong oxidation resistance, thermal shock stability and bending resistance. High compressive strength and good dispersion effect

Inactive Publication Date: 2020-01-07
常江
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Commonly used carbon composite refractory binders include pitch and phenolic resin, among which, the carbonization product of phenolic resin in the heat treatment process is usually isotropic glassy carbon, which is difficult to graphitize after high temperature treatment, and remains in the carbonization product. A large number of pores structure, so the anti-oxidation ability is poor, which makes the thermal shock stability of the refractory material applied with phenolic resin poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present embodiment provides a kind of preparation method of composite phenolic resin for refractory material, specifically implement according to the following steps:

[0024] Step 1, add 12mL dehydrated alcohol to every 100g phenolic resin, obtain phenolic resin dehydrated alcohol solution;

[0025] Step 2,, according to the mass ratio of amino polyacid ligand containing aromatic group and phenolic resin absolute ethanol solution is 27:125, add the amino polyacid ligand containing aromatic group to reaction in phenolic resin absolute ethanol solution After 25-30min, adjust the pH value to 7 to obtain the primary phenolic resin solution;

[0026] Step 3. Preparation of metal oxide sol precursor by sol-gel method:

[0027] Add the metal salt solution precursor corresponding to the metal oxide sol to be prepared into an ethanol solution with a concentration of 55% to obtain a metal salt mixed solution, use hydrazine hydrate as a catalyst to adjust the pH of the metal...

Embodiment 2

[0030] The present embodiment provides a kind of preparation method of composite phenolic resin for refractory material, specifically implement according to the following steps:

[0031] Step 1, add 14mL dehydrated alcohol to every 100g phenolic resin, obtain phenolic resin dehydrated alcohol solution;

[0032] Step 2,, according to the mass ratio of amino polyacid ligand containing aromatic group and phenolic resin absolute ethanol solution is 27:125, add the amino polyacid ligand containing aromatic group to reaction in phenolic resin absolute ethanol solution After 30min, the pH value was adjusted to 9 to obtain a primary phenolic resin solution;

[0033] Step 3. Preparation of metal oxide sol precursor by sol-gel method:

[0034] Add the metal salt solution precursor corresponding to the metal oxide sol to be prepared into an ethanol solution with a concentration of 55% to obtain a metal salt mixed solution, use hydrazine hydrate as a catalyst to adjust the pH of the meta...

Embodiment 3

[0037] The present embodiment provides a kind of preparation method of composite phenolic resin for refractory material, specifically implement according to the following steps:

[0038] Step 1, add 13mL dehydrated alcohol to every 100g phenolic resin, obtain phenolic resin dehydrated alcohol solution;

[0039] Step 2,, according to the mass ratio of amino polyacid ligand containing aromatic group and phenolic resin absolute ethanol solution is 27:125, add the amino polyacid ligand containing aromatic group to reaction in phenolic resin absolute ethanol solution Adjust the pH value to 8 after 28min to obtain the primary phenolic resin solution;

[0040] Step 3. Preparation of metal oxide sol precursor by sol-gel method:

[0041] Add the metal salt solution precursor corresponding to the metal oxide sol to be prepared into an ethanol solution with a concentration of 55% to obtain a metal salt mixed solution, use hydrazine as a catalyst to adjust the pH of the metal salt mixed ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of composite phenolic resin for a refractory material, wherein the preparation method comprises the steps: sequentially adding absolute ethyl alcohol, an aromatic group-containing amino polyacid ligand and a metal oxide sol precursor into phenolic resin, finally distilling to remove ethanol, and thus obtaining the composite phenolic resin for the refractory material. The preparation method is simple, clear and high in operability, the prepared composite phenolic resin is good in dispersity and high in oxidation resistance, and the refractory material applying the composite phenolic resin is high in thermal shock stability and flexural compressive strength.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a preparation method of composite phenolic resin for refractory materials. Background technique [0002] Commonly used carbon composite refractory binders include pitch and phenolic resin, among which, the carbonization product of phenolic resin in the heat treatment process is usually isotropic glassy carbon, which is difficult to graphitize after high temperature treatment, and remains in the carbonization product. A large number of pores structure, so the anti-oxidation ability is poor, which makes the thermal shock stability of the refractory material using phenolic resin poor. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of composite phenolic resin for refractory materials, which improves the carbonization structure of the phenolic resin. [0004] The technical scheme adopted in the pre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08K3/22
CPCC08K3/22C08K2003/2265C08K2003/2293C08L2201/02C08L2201/08C08L61/14
Inventor 常江
Owner 常江