CN108083841A - A kind of lightweight melamine foams ceramic material and preparation method thereof - Google Patents
A kind of lightweight melamine foams ceramic material and preparation method thereof Download PDFInfo
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- CN108083841A CN108083841A CN201711495451.7A CN201711495451A CN108083841A CN 108083841 A CN108083841 A CN 108083841A CN 201711495451 A CN201711495451 A CN 201711495451A CN 108083841 A CN108083841 A CN 108083841A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/0615—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances the burned-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a porous polyurethane sheet or a prepreg obtained by bonding together resin particles
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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Abstract
The present invention relates to a kind of lightweight melamine foams ceramic material and preparation method thereof, including following raw material：Melamine, 37% formalin, trihydroxyethyl isocyanuric ester, polyvinyl alcohol, hexamethylenetetramine, pentane, tween, formic acid, ceramic powders, waterglass, dispersant；Modified melamine resin foam is prepared first；Then, ceramic slurry is prepared；Then, using modified melamine resin foam as carrier, it is immersed in ceramic slurry, and is crushed to blank；Then, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；Finally, dried blank is packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering；The present invention has the advantages that toughness height, stable mechanical property, production efficiency height, thermal property are stablized.
Description
Technical field
The invention belongs to melamine resin foam ceramic material preparing technical fields, and in particular to a kind of lightweight melamine foams pottery
Ceramic material and preparation method thereof.
Background technology
The development of foam ceramic material is started from the 1970s, being a kind of porous material with hot properties.Its hole
Footpath is differed from nanoscale to micron order, and for the porosity between 20%-95%, temperature in use is -1600 DEG C of room temperature.Its bulk density is very
It is small, apparent porosity is very high, be the novel porous ceramic material with three-dimensional net structure, have anti-thermal shock, high temperature resistant, resistance toization
The advantages that learning corrosion and good mechanical strength and strainability, can be widely used for catalyst carrier, filtering material, heat exchange material
Material, automobile exhaust purifier, reaction tower and the chemical filler on absorption tower etc..
However, current foamed ceramics mechanical performance is weaker, tensile property is poor, easily tears, and elasticity modulus is small so that bubble
The reduced service life of foam ceramics.
The content of the invention
A kind of toughness height, stable mechanical property, production effect are provided the purpose of the present invention is overcome the deficiencies in the prior art
Lightweight melamine foams ceramic material that rate is high, thermal property is stablized and preparation method thereof.
Technical scheme is as follows：
A kind of lightweight melamine foams ceramic material, including following raw material：30-240 parts of melamine, 37% formalin 30-80
Part, 6-16 parts of trihydroxyethyl isocyanuric ester, 4.5-12 parts of polyvinyl alcohol, 3-10 parts of hexamethylenetetramine, 1-3 parts of pentane,
1-5 parts of tween, 4-8 parts of formic acid, 60-260 parts of ceramic powders, 1-3 parts of waterglass, 1-3 parts of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of the step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
Further, the step 3）The microwave frequency of middle application is 2450MHz.
Further, the additive amount of the pentane is the 3% of 50% formalin, and the additive amount of formic acid is 50% formalin
12%, 5% that the additive amount of tween is 50% formalin.
Further, the additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and polyvinyl alcohol adds
Dosage is the 15% of 50% formalin, and the additive amount of polyacrylamide is the 30% of 50% formalin.
Further, the step 1）It adds in hexamethylenetetramine and adjusts PH to 8-8.5.
Further, the preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to mix
It closes and ceramic slurry is made.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention adds in parts by weight and is reacted for the polyvinyl alcohol of 50% formalin 15% with formaldehyde, consumes the free aldehyde in part,
So that the content of formaldehyde is greatly reduced in finished foam, and remnants are further removed by way of hot dipping baking to foam
Formaldehyde, utmostly to reduce the content of formaldehyde；Add in total amount number has for the trihydroxyethyl isocyanuric ester of 50% formalin
Effect improves the compressive strength and elasticity modulus of foam, effectively enhances the toughness of foam, changes the characteristic that regular-type foam is easily torn；With
The melamine resin foam being modified by polyvinyl alcohol, trihydroxyethyl isocyanuric ester, polyacrylamide is carrier, is immersed in ceramics
It in slurry, is hardened by micro-wave drying, lightweight melamine foams ceramic material is prepared into after high temperature sintering, relatively traditional is close
Amine foam ceramic material, stability is stronger, and uniform pore diameter, mechanical strength effectively improves；The present invention has toughness height, mechanical property
Can be stable, production efficiency is high, thermal property is stablized the advantages of.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of lightweight melamine foams ceramic material, including following raw material：30 parts of melamine, 37% 30 parts of formalin, three hydroxyls
6 parts of ethyl chlorinated isocyanurates, 4.5 parts of polyvinyl alcohol, 3 parts of hexamethylenetetramine, 1 part of pentane, 1 part of tween, 4 parts of formic acid, pottery
60 parts of porcelain powder, 1 part of waterglass, 1 part of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
In the present embodiment, the step 3）The microwave frequency of middle application is 2450MHz；The additive amount of the pentane is
The 3% of 50% formalin, the additive amount of formic acid is the 12% of 50% formalin, 5% that the additive amount of tween is 50% formalin；
The additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is molten for 50% formaldehyde
The 15% of liquid, the additive amount of polyacrylamide are the 30% of 50% formalin；The step 1）It adds in hexamethylenetetramine and adjusts PH
To 8；The preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramic slurry
Material.
Embodiment 2
A kind of lightweight melamine foams ceramic material, including following raw material：240 parts of melamine, 37% 80 parts of formalin, three
16 parts of hydroxyethyl isocyanurate ester, 12 parts of polyvinyl alcohol, 10 parts of hexamethylenetetramine, 3 parts of pentane, 5 parts of tween, 8 parts of formic acid,
260 parts of ceramic powders, 3 parts of waterglass, 3 parts of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
In the present embodiment, the step 3）The microwave frequency of middle application is 2450MHz；The additive amount of the pentane is
The 3% of 50% formalin, the additive amount of formic acid is the 12% of 50% formalin, 5% that the additive amount of tween is 50% formalin；
The additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is molten for 50% formaldehyde
The 15% of liquid, the additive amount of polyacrylamide are the 30% of 50% formalin；The step 1）It adds in hexamethylenetetramine and adjusts PH
To 8.1；The preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramics
Slurry.
Embodiment 3
A kind of lightweight melamine foams ceramic material, including following raw material：210 parts of melamine, 37% 70 parts of formalin, three
14 parts of hydroxyethyl isocyanurate ester, 10.5 parts of polyvinyl alcohol, 7 parts of hexamethylenetetramine, 2.1 parts of pentane, 3.5 parts of tween, first
8.4 parts of acid, 200 parts of ceramic powders, 2 parts of waterglass, 2 parts of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
In the present embodiment, the step 3）The microwave frequency of middle application is 2450MHz；The additive amount of the pentane is
The 3% of 50% formalin, the additive amount of formic acid is the 12% of 50% formalin, 5% that the additive amount of tween is 50% formalin；
The additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is molten for 50% formaldehyde
The 15% of liquid, the additive amount of polyacrylamide are the 30% of 50% formalin；The step 1）It adds in hexamethylenetetramine and adjusts PH
To 8.4；The preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramics
Slurry.
Embodiment 4
A kind of lightweight melamine foams ceramic material, including following raw material：120 parts of melamine, 37% 40 parts of formalin, three
8 parts of hydroxyethyl isocyanurate ester, 6 parts of polyvinyl alcohol, 4 parts of hexamethylenetetramine, 1.2 parts of pentane, 2 parts of tween, formic acid 4.8
Part, 180 parts of ceramic powders, 3 parts of waterglass, 1 part of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
In the present embodiment, the step 3）The microwave frequency of middle application is 2450MHz；The additive amount of the pentane is
The 3% of 50% formalin, the additive amount of formic acid is the 12% of 50% formalin, 5% that the additive amount of tween is 50% formalin；
The additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is molten for 50% formaldehyde
The 15% of liquid, the additive amount of polyacrylamide are the 30% of 50% formalin；The step 1）It adds in hexamethylenetetramine and adjusts PH
To 8.5；The preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramics
Slurry.
Embodiment 5
A kind of lightweight melamine foams ceramic material, including following raw material：180 parts of melamine, 37% 60 parts of formalin, three
12 parts of hydroxyethyl isocyanurate ester, 9 parts of polyvinyl alcohol, 6 parts of hexamethylenetetramine, 1.8 parts of pentane, 3 parts of tween, formic acid 7.2
Part, 220 parts of ceramic powders, 3 parts of waterglass, 2 parts of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
In the present embodiment, the step 3）The microwave frequency of middle application is 2450MHz；The additive amount of the pentane is
The 3% of 50% formalin, the additive amount of formic acid is the 12% of 50% formalin, 5% that the additive amount of tween is 50% formalin；
The additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is molten for 50% formaldehyde
The 15% of liquid, the additive amount of polyacrylamide are the 30% of 50% formalin；The step 1）It adds in hexamethylenetetramine and adjusts PH
To 8.2；The preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramics
Slurry.
Embodiment 6
A kind of lightweight melamine foams ceramic material, including following raw material：150 parts of melamine, 37% 50 parts of formalin, three
10 parts of hydroxyethyl isocyanurate ester, 7.5 parts of polyvinyl alcohol, 5 parts of hexamethylenetetramine, 1.5 parts of pentane, 2.5 parts of tween, formic acid
6 parts, 250 parts of ceramic powders, 2 parts of waterglass, 1 part of dispersant.
The preparation method of the lightweight melamine foams ceramic material, comprises the following steps：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
Further, in the preparation method of the lightweight melamine foams ceramic material, the specific steps of step S1：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
In the present embodiment, the step 3）The microwave frequency of middle application is 2450MHz；The additive amount of the pentane is
The 3% of 50% formalin, the additive amount of formic acid is the 12% of 50% formalin, 5% that the additive amount of tween is 50% formalin；
The additive amount of the trihydroxyethyl isocyanuric ester is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is molten for 50% formaldehyde
The 15% of liquid, the additive amount of polyacrylamide are the 30% of 50% formalin；The step 1）It adds in hexamethylenetetramine and adjusts PH
To 8；The preparation method of the step S2 is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramic slurry
Material.
When the present invention is implemented, trihydroxyethyl isocyanuric ester, polyvinyl alcohol as modifier on resin be tentatively modified,
With the toughness of reinforced resin foam finished product, stronger tensile property is made it have；Further by the use of tween as emulsifier, pentane
As foaming agent, formic acid makes resin further speed up resin under vibration of ultrasonic wave and the operating mode of microwave heating as curing agent
Emulsification, the efficiency that foaming is foam accelerate the production efficiency of resin foam while resin foam mechanical performance is improved,
The melamine foams gone out by the technique productions are immersed in ceramic slurry, the lightweight melamine foams being prepared by drying, sintering
Ceramic material has good thermal stability, mechanical stability.
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It can still modify to the technical solution recorded in foregoing embodiments or its partial technical characteristic be carried out etc.
With replacing, within the spirit and principles of the invention, any modifications, equivalent replacements and improvements are made should be included in this
The protection domain of invention it.
Claims (8)
1. a kind of lightweight melamine foams ceramic material, which is characterized in that including following raw material：30-240 parts of melamine, 37%
30-80 parts of formalin, 6-16 parts of trihydroxyethyl isocyanuric ester, 4.5-12 parts of polyvinyl alcohol, 3-10 parts of hexamethylenetetramine,
1-3 parts of pentane, 1-5 parts of tween, 4-8 parts of formic acid, 60-260 parts of ceramic powders, 1-3 parts of waterglass, 1-3 parts of dispersant.
2. the preparation method of lightweight melamine foams ceramic material as described in claim 1, which is characterized in that including following step
Suddenly：
S1, modified melamine resin foam is prepared；
S2, ceramic slurry is prepared；
S3, using modified melamine resin foam as carrier, be immersed in ceramic slurry, and be crushed to blank；
S4, blank is put into micro-wave oven, the dry hardening at a temperature of 115 DEG C；
S5, dried blank are packed into sintering furnace, and in a nitrogen atmosphere, heat up 1200 DEG C of sintering.
3. the preparation method of lightweight melamine foams ceramic material as claimed in claim 2, which is characterized in that the step S1's
Specific steps：
1）, formalin is taken to be added to the formalin that water in container is diluted to 50%；
2）, weigh step 1 in parts by weight）50% formalin prepared is added to stirring in reaction kettle, then adds in six times
Tetramine is stirred to solution clear, is cooled to 23 DEG C, adds in melamine, and reaction kettle is heated to 80 DEG C, continues to stir
Trihydroxyethyl isocyanuric ester is added in after mixing 6min, continues to add in polyvinyl alcohol after stirring 10min, continues to add in after stirring 5min
Polyacrylamide continues stirring 10min and obtains modified resin；
3）, take step 2）Resin obtained is added in reactor, is added in pentane, formic acid and tween, is heated to 70 DEG C, so
After-applied ultrasonic wave ancillary vibration stirring 5min obtains emulsifying mixt；
4）, by step 3）Obtained emulsifying mixt, which is added in microwave foaming furnace to cure, obtains modified melamine foams.
4. the preparation method of lightweight melamine foams ceramic material as claimed in claim 3, it is characterised in that：The step 3）In
The microwave frequency of application is 2450MHz.
5. the preparation method of lightweight melamine foams ceramic material as claimed in claim 3, it is characterised in that：The pentane
Additive amount is the 3% of 50% formalin, and the additive amount of formic acid is the 12% of 50% formalin, the additive amount of tween is 50% formaldehyde
The 5% of solution.
6. the preparation method of lightweight melamine foams ceramic material as claimed in claim 3, it is characterised in that：The trihydroxyethyl
The additive amount of chlorinated isocyanurates is the 20% of 50% formalin, and the additive amount of polyvinyl alcohol is the 15% of 50% formalin, poly- third
The additive amount of acrylamide is the 30% of 50% formalin.
7. the preparation method of lightweight melamine foams ceramic material as claimed in claim 3, it is characterised in that：The step 1）Add
Enter hexamethylenetetramine and adjust PH to 8-8.5.
8. the preparation method of lightweight melamine foams ceramic material as claimed in claim 2, it is characterised in that：The step S2's
Preparation method is that ceramic powders, waterglass, dispersant and water uniform stirring is taken to be mixed to prepare ceramic slurry.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711495451.7A CN108083841A (en) | 2017-12-31 | 2017-12-31 | A kind of lightweight melamine foams ceramic material and preparation method thereof |
Applications Claiming Priority (1)
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| CN112457460A (en) * | 2020-11-25 | 2021-03-09 | 青岛科技大学 | Preparation method of mosaic modified melamine formaldehyde resin |
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