CN109761539A - A kind of thermal insulation material for building and preparation method thereof - Google Patents
A kind of thermal insulation material for building and preparation method thereof Download PDFInfo
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- CN109761539A CN109761539A CN201910260038.5A CN201910260038A CN109761539A CN 109761539 A CN109761539 A CN 109761539A CN 201910260038 A CN201910260038 A CN 201910260038A CN 109761539 A CN109761539 A CN 109761539A
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Abstract
The present invention discloses a kind of thermal insulation material for building, it is characterized in that, it is made of following raw material: 55-70 parts of diatomite, 18-35 parts of nano-titanium dioxides, 25-35 portions of bamboos/glass composite fibre, 16-34 parts of modified polyurethanes, 38-58 parts of expanded perlites, 7-15 parts of dispersing agents, 7-12 parts of crosslinking agents, 5-16 parts of environment-friendlyadhesive adhesives；The invention also discloses a kind of preparation methods of thermal insulation material for building；The present invention purifies diatomite by calcining and 10% sulfuric acid, so that the specific surface area of diatomite increases, adsorption effect enhancing, to assign thermal insulation material good absorption property, air can be purified, glass fibre carries out circumferential direction to bamboo fibre and is wound an enhancement layer in bamboo obtained/glass complex structure of filament, to make it have good mechanical performance, and the material has excellent heat preservation, heat-insulated and anti-acoustic capability, further assigns the good heat preservation of thermal insulation material for building, heat-insulated and decrease of noise functions.
Description
Technical field
The invention belongs to the field of building materials, specially a kind of thermal insulation material for building and preparation method thereof.
Background technique
The material used between floors is referred to as construction material.Including thermal insulation material, heat-barrier material, high-strength material
Deng and civil engineering used in material general designation；And with the implementation and development of building energy conservation, heat preserving and insulating material and system
Product are increasingly valued by people.And material used at present is not ideal enough in various performances, especially keeps the temperature, is resistance to
Soda acid, weatherability etc. are not able to satisfy the needs of people.Building thermal insulation material on the market at present, in the prevalence of specific gravity
Greatly, thermal coefficient is big, the hidden danger that adhesive property is poor, is easy to fall off etc..
Chinese invention patent CN106588108A discloses a kind of building thermal insulation material, according to parts by weight, mainly by with
Lower raw material is made: 15-30 parts of bentonite, 15-30 parts of flyash, 10-20 parts of mica, 2-5 parts of polyacrylamide, diatomite 12-
27 parts, 11-25 parts of expanded perlite, 7-15 parts of phenolic resin, 0.5-2 parts of calcium stearate, 1-3 parts of foaming agent, 6-13 parts of saponite,
35-55 parts of modified environment-friendly glue, 3-6 parts of starch ether, 6-13 parts of centrifugal glass fibre, 2-8 parts of hydroxymethyl-propyl cellulose, cement
15-25 parts, 8-17 parts of haydite and 11-23 parts of diatomite.Building thermal insulation material of the invention, lighter in weight are alternative traditional
Building thermal insulation material can be used for the painting shield of building wall.Using GB/T10297-1998 standard to the thermally conductive of material of the invention
Coefficient is tested, and thermal coefficient is only 0.038-0.040, and thermal insulation property is extremely excellent, and has preferable acid and alkali-resistance rotten
Corrosion, experiment test 150h is without exception, and has superelevation weatherability, and 420h is split without discoloration, no dusting, bubble-free, no peeling, nothing
Line.But the heat insulation effect of the thermal insulation material of the disclosure of the invention is still not outstanding enough and adhesive property is poor, exists and is easy to fall off
Etc. hidden danger.
Summary of the invention
In order to overcome above-mentioned technical problem, the present invention provides a kind of thermal insulation material for building and preparation method thereof.Pass through
Calcining and 10% sulfuric acid purify diatomite, so that the specific surface area of diatomite increases, adsorption effect enhancing, to assign
The good absorption property of thermal insulation material, can purify air, glass fibre in bamboo obtained/glass complex structure of filament
Circumferential direction is carried out to bamboo fibre and is wound an enhancement layer, to make it have good mechanical performance, and the material has
Excellent heat preservation, heat-insulated and anti-acoustic capability further assign the good heat preservation of thermal insulation material for building, heat-insulated and decrease of noise functions.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of thermal insulation material for building, is made of following raw material: 55-70 parts of diatomite, 18-35 parts of nano-silicas
Change titanium, 25-35 portions of bamboos/glass composite fibre, 16-34 parts of modified polyurethanes, 38-58 parts of expanded perlites, 7-15 parts of dispersing agents,
7-12 parts of crosslinking agents, 5-16 parts of environment-friendlyadhesive adhesives；
The thermal insulation material for building is made by the following method:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by the diatomite after purification, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and expansion
Perlite mixed grinding, sieves with 100 mesh sieve, and dispersing agent and crosslinking agent is then added, environment-friendlyadhesive adhesive, 45 DEG C of water-baths are added after mixing
Deionized water is added after keeping the temperature 2h after heating, mixed slurry is made after stirring 45min with the revolving speed of 120r/min；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Further, the bamboo/glass composite fibre is made of following raw material: 35-55 parts of bamboo fibres, 35-55
Part glass powder, 55-70 parts of phenol solutions, 25% acetic acid of 35-50 part, 60-80 parts of glycerine.
Further, the bamboo/glass composite fibre is made by the following method:
(1) it sieves with 100 mesh sieve, is transferred in glycerine after grinding bamboo fibre, phenol is added after ultrasonic disperse 30min
Solution continues ultrasonic disperse 1h, and glass powder is added, and 45 DEG C of heating water baths simultaneously stir 45min with the revolving speed of 120r/min, are made mixed
Close liquid；
(2) mixed liquor is added in ball mill, ball milling is carried out with the revolving speed of 280r/min, filtering is taken out after 3h, will filter
The powder obtained afterwards is transferred to vacuum degree as -0.10MPa, in the vacuum oven that temperature is 80 DEG C, is mixed after dry 5h
Object；
(3) it feeds the mixture into the beaker equipped with 25% acetic acid, 10% sodium hydroxide solution is added and adjusts pH, until pH
=11,45 DEG C of heating water baths simultaneously at the uniform velocity stir, and filter residue is taken out in filtering after 50min, and filter residue, drying, transfer is washed with deionized
Into electrothermal furnace, it is passed through nitrogen discharge air, wire drawing process is carried out after being heated to molten condition, bamboo/glass composite fibre is made,
The weight ratio for controlling mixture and acetic acid is 1: 5.
Further, the modified polyurethane is made by the following method:
(1) toluene di-isocyanate(TDI) and trimethylolethane are added in beaker, at the uniform velocity stirring 20min, are warming up to 50 DEG C,
4h is kept the temperature, sodium hydroxide is added, polyurethane prepolymer solution is made after stirring 15min, controls toluene di-isocyanate(TDI), three hydroxyl first
Base ethane, sodium hydroxide weight ratio be 2: 2: 1；
(2) nano aluminium oxide is added in the beaker equipped with KH550, at the uniform velocity stirring 5min, is warming up to 70 DEG C, reflux
35min, filtering, is washed with deionized three times, is transferred in 80 DEG C of drying boxes dry 2h, nano oxidized after modification is made
Aluminium, nano aluminium oxide, KH550, deionized water weight ratio be 1: 2: 8；
(3) nano aluminium oxide after modification is added in polyurethane prepolymer solution, is at the uniform velocity stirred and heated to 85 DEG C, instead
5h is answered, modified polyurethane emulsion, filtering, dry, obtained modified polyurethane, control nano aluminium oxide and base polyurethane prepolymer for use as is made
The weight ratio of solution is 3: 1.
Polyurethane is unstable, and alcohol, acid, ketone can make polyurethane be swollen and degrade.The present invention is by nano aluminium oxide to poly- ammonia
Ester is modified, but nano aluminium oxide and polyurethane prepolymer solution compatibility are poor, are easy to happen and mutually separate, so passing through
KH550 is chemically modified nano aluminium oxide as coupling agent, the hydroxy combining of the one end KH550 and nano alumina surface,
The KH550 other end is deposited in the solution as dispersing agent, and chemically modified aluminium oxide is blended with polyurethane prepolymer solution formation
System, aluminium oxide are capable of forming the compound of good nano-level with polyurethane, enhance the boundary between aluminium oxide and polyurethane
Face tension.
Further, the dispersing agent be one of triethyl group hexyl phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol or
It is several.
Further, the crosslinking agent is one of cumyl peroxide, benzoyl peroxide, Diethylenetriamine or several
Kind.
Further, the environment-friendlyadhesive adhesive is one or both of polyvinyl alcohol environmental protection glue, phenolic aldehyde-nitrile rubber.
A kind of preparation method of thermal insulation material for building, includes the following steps:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by the diatomite after purification, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and expansion
Perlite mixed grinding, sieves with 100 mesh sieve, and dispersing agent and crosslinking agent is then added, environment-friendlyadhesive adhesive, 45 DEG C of water-baths are added after mixing
Deionized water is added after keeping the temperature 2h after heating, mixed slurry is made after stirring 45min with the revolving speed of 120r/min；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Beneficial effects of the present invention:
(1) present invention prepares one as raw material using diatomite, bamboo/glass composite fibre, the modified polyurethane etc. after purifying
Kind thermal insulation material for building, purifies diatomite by calcining and 10% sulfuric acid, the diatomite aperture and structure after purification
It changes, so that the specific surface area of diatomite increases, adsorption effect enhancing, to assign thermal insulation material good adsorptivity
Can, air can be purified；
(2) bamboo prepared by the present invention/glass composite fibre, bamboo are individual event materials, and transverse strength is low, and glass fibre is also
Individual event material, can only bear the pulling force along machine direction, and glycerine and phenol of the present invention pass through under alkaline environment as solvent
Acetic acid promotes reaction process, and glass fibre carries out circumferential winding shape to bamboo fibre in bamboo obtained/glass complex structure of filament
At an enhancement layer, to make it have good mechanical performance, and the material has excellent heat preservation, heat-insulated and noise reduction
Can, further assign the good heat preservation of thermal insulation material for building, heat-insulated and decrease of noise functions；
(3) contain imino group in present invention modified polyurethane used during preparing thermal insulation material for building, and
The carbonyl in hard section that imino group can be constituted with phenylene diisocyanate forms a large amount of hydrogen bonds, and the formation of hydrogen bond can make polyurethane molecular
The polarity of middle segment enhances, and when the temperature increases, segment comes into play, and hydrogen bond disappears, and hydrogen bond plays the role of physical crosslinking, makes
Modified polyurethane not only intensity with higher, also there is good wear-resisting property, from making thermal insulation material for building
With good wear-resisting property.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of thermal insulation material for building, is made of following raw material: 55 parts of diatomite, 18 parts of nano-titanium dioxides,
25 portions of bamboos/glass composite fibre, 16 parts of modified polyurethanes, 38 parts of expanded perlites, 7 parts of lauryl sodium sulfate, 7 parts of peroxidating
Diisopropylbenzene (DIPB), 5 parts of polyvinyl alcohol environmental protection glue；
The thermal insulation material for building is made by the following method:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by the diatomite after purification, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and expansion
Perlite mixed grinding, sieves with 100 mesh sieve, and lauryl sodium sulfate and cumyl peroxide is then added, after mixing plus
Enter polyvinyl alcohol environmental protection glue, deionized water is added after keeping the temperature 2h after 45 DEG C of heating water baths, 45min is stirred with the revolving speed of 120r/min
Mixed slurry is made afterwards；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material；
The bamboo/glass composite fibre is made by the following method:
(1) it sieves with 100 mesh sieve, is transferred in glycerine after grinding bamboo fibre, phenol is added after ultrasonic disperse 30min
Solution continues ultrasonic disperse 1h, and glass powder is added, and 45 DEG C of heating water baths simultaneously stir 45min with the revolving speed of 120r/min, are made mixed
Close liquid；
(2) mixed liquor is added in ball mill, ball milling is carried out with the revolving speed of 280r/min, filtering is taken out after 3h, will filter
The powder obtained afterwards is transferred to vacuum degree as -0.10MPa, in the vacuum oven that temperature is 80 DEG C, is mixed after dry 5h
Object；
(3) it feeds the mixture into the beaker equipped with 25% acetic acid, 10% sodium hydroxide solution is added and adjusts pH, until pH
=11,45 DEG C of heating water baths simultaneously at the uniform velocity stir, and filter residue is taken out in filtering after 50min, and filter residue, drying, transfer is washed with deionized
Into electrothermal furnace, it is passed through nitrogen discharge air, wire drawing process is carried out after being heated to molten condition, bamboo/glass composite fibre is made,
The weight ratio for controlling mixture and acetic acid is 1: 5；
The modified polyurethane is made by the following method:
(1) toluene di-isocyanate(TDI) and trimethylolethane are added in beaker, at the uniform velocity stirring 20min, are warming up to 50 DEG C,
4h is kept the temperature, sodium hydroxide is added, polyurethane prepolymer solution is made after stirring 15min, controls toluene di-isocyanate(TDI), three hydroxyl first
Base ethane, sodium hydroxide weight ratio be 2: 2: 1；
(2) nano aluminium oxide is added in the beaker equipped with KH550, at the uniform velocity stirring 5min, is warming up to 70 DEG C, reflux
35min, filtering, is washed with deionized three times, is transferred in 80 DEG C of drying boxes dry 2h, nano oxidized after modification is made
Aluminium, nano aluminium oxide, KH550, deionized water weight ratio be 1: 2: 8；
(3) nano aluminium oxide after modification is added in polyurethane prepolymer solution, is at the uniform velocity stirred and heated to 85 DEG C, instead
5h is answered, modified polyurethane emulsion, filtering, dry, obtained modified polyurethane, control nano aluminium oxide and base polyurethane prepolymer for use as is made
The weight ratio of solution is 3: 1.
Embodiment 2
A kind of thermal insulation material for building, is made of following raw material: 60 parts of diatomite, 22 parts of nano-titanium dioxides,
28 portions of bamboos/glass composite fibre, 20 parts of modified polyurethanes, 43 parts of expanded perlites, 9 parts of lauryl sodium sulfate, 8 parts of peroxidating
Diisopropylbenzene (DIPB), 9 parts of polyvinyl alcohol environmental protection glue；
The thermal insulation material for building is made by the following method:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by the diatomite after purification, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and expansion
Perlite mixed grinding, sieves with 100 mesh sieve, and lauryl sodium sulfate and cumyl peroxide is then added, after mixing plus
Enter polyvinyl alcohol environmental protection glue, deionized water is added after keeping the temperature 2h after 45 DEG C of heating water baths, 45min is stirred with the revolving speed of 120r/min
Mixed slurry is made afterwards；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Embodiment 3
A kind of thermal insulation material for building, is made of following raw material: 65 parts of diatomite, 30 parts of nano-titanium dioxides,
30 portions of bamboos/glass composite fibre, 30 parts of modified polyurethanes, 52 parts of expanded perlites, 12 parts of lauryl sodium sulfate, 10 parts of peroxides
Change diisopropylbenzene (DIPB), 13 parts of polyvinyl alcohol environmental protection glue；
The thermal insulation material for building is made by the following method:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by the diatomite after purification, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and expansion
Perlite mixed grinding, sieves with 100 mesh sieve, and lauryl sodium sulfate and cumyl peroxide is then added, after mixing plus
Enter polyvinyl alcohol environmental protection glue, deionized water is added after keeping the temperature 2h after 45 DEG C of heating water baths, 45min is stirred with the revolving speed of 120r/min
Mixed slurry is made afterwards；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Embodiment 4
A kind of thermal insulation material for building, is made of following raw material: 70 parts of diatomite, 35 parts of nano-titanium dioxides,
35 portions of bamboos/glass composite fibre, 34 parts of modified polyurethanes, 58 parts of expanded perlites, 15 parts of lauryl sodium sulfate, 12 parts of peroxides
Change diisopropylbenzene (DIPB), 16 parts of polyvinyl alcohol environmental protection glue；
The thermal insulation material for building is made by the following method:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by the diatomite after purification, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and expansion
Perlite mixed grinding, sieves with 100 mesh sieve, and lauryl sodium sulfate and cumyl peroxide is then added, after mixing plus
Enter polyvinyl alcohol environmental protection glue, deionized water is added after keeping the temperature 2h after 45 DEG C of heating water baths, 45min is stirred with the revolving speed of 120r/min
Mixed slurry is made afterwards；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Comparative example 1
This comparative example substitutes bamboo/glass composite fibre with bamboo fibre compared with Example 1, and preparation method is as follows:
Step S1, the purification of diatomite: (a) diatomite is put into Muffle furnace after 350 DEG C of calcining 1h, 150mL10% is added
In sulfuric acid solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to
80 DEG C, ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, until molten
Liquid is in neutrality, and is filtered again, and after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, diatomite, nano-titanium dioxide, bamboo fibre, modified polyurethane and the expanded perlite after purification are mixed
Grinding is closed, is sieved with 100 mesh sieve, lauryl sodium sulfate and cumyl peroxide is then added, polyethylene is added after mixing
Deionized water is added after keeping the temperature 2h after 45 DEG C of heating water baths in alcohol environment-friendlyadhesive adhesive, is made mixed after stirring 45min with the revolving speed of 120r/min
Close slurry；
Step S3, the mixed slurry in step S2 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Comparative example 2
Polyurethane not by Purification of Diatomite, is not also modified, preparation method is as follows by this comparative example compared with Example 1
It is shown:
Step S1, diatomite, nano-titanium dioxide, bamboo/glass composite fibre, polyurethane and expanded perlite are mixed and is ground
Mill, sieves with 100 mesh sieve, and lauryl sodium sulfate and cumyl peroxide is then added, and polyvinyl alcohol ring is added after mixing
Glue is protected, deionized water is added after keeping the temperature 2h after 45 DEG C of heating water baths, mixing slurry is made after stirring 45min with the revolving speed of 120r/min
Material；
Step S2, the mixed slurry in step S1 is poured into mold, the temperature for controlling mold is 125 DEG C, is poured with mold
It is put into curing field after forming bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into building for 15-25mm
It builds and uses thermal insulation material.
Comparative example 3
This comparative example is a kind of thermal insulation material for building in market.
To compression strength, the acoustical ratings, thermally conductive system of the embodiment 1-4 and comparative example 1-4 thermal insulation material for building prepared
Number is detected, and test result is as follows shown in table 1；
Table 1
It can be seen that the compression strength of the thermal insulation material for building of embodiment 1-4 preparation is in 0.65- from upper table 1
Within the scope of 0.73MPa, the compression strength of the thermal insulation material for building of comparative example 1-3 preparation is within the scope of 0.53-0.58MPa；It is real
The thermal insulation material acoustical ratings for building for applying a 1-4 and the preparation of comparative example 1 are level-ones, and comparative example 2-3 acoustical ratings are second level；
The thermal insulation material thermal coefficient for building of embodiment 1-4 preparation is between 0.010-0.014 (W/mk) range, comparative example 1-3
Thermal coefficient is between 0.041-0.045 (W/mk) range.So thermal insulation material for building prepared by the present invention not only has
Good heat insulation effect and have excellent mechanical performance.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (8)
1. a kind of thermal insulation material for building, which is characterized in that be made of following raw material: 55-70 parts of diatomite, 18-35
Part nano-titanium dioxide, 25-35 portions of bamboos/glass composite fibre, 16-34 parts of modified polyurethanes, 38-58 parts of expanded perlites, 7-
15 parts of dispersing agents, 7-12 parts of crosslinking agents, 5-16 parts of environment-friendlyadhesive adhesives；
The thermal insulation material for building is made by the following method:
Step S1, diatomite (a) purification of diatomite: is put into Muffle furnace addition 150mL10% sulfuric acid after 350 DEG C of calcining 1h
In solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to 80 DEG C,
Ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, in solution is in
Property, it filters again, after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by diatomite, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and the expanded pearlite after purification
Rock mixed grinding, sieves with 100 mesh sieve, and dispersing agent and crosslinking agent is then added, environment-friendlyadhesive adhesive, 45 DEG C of heating water baths are added after mixing
Deionized water is added after keeping the temperature 2h afterwards, mixed slurry is made after stirring 45min with the revolving speed of 120r/min；
Step S3, the mixed slurry in step S2 is poured into mold, control mold temperature be 125 DEG C, with die casting at
It is put into curing field after bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into for building of 15-25mm
Thermal insulation material.
2. a kind of thermal insulation material for building according to claim 1, which is characterized in that the bamboo/glass composite fibre by
Following raw material is made: 35-55 parts of bamboo fibres, 35-55 parts of glass powders, 55-70 parts of phenol solutions, 25% vinegar of 35-50 part
Acid, 60-80 parts of glycerine.
3. a kind of thermal insulation material for building according to claim 2, which is characterized in that the bamboo/glass composite fibre by
Following method is made:
(1) it sieves with 100 mesh sieve, is transferred in glycerine after grinding bamboo fibre, it is molten that phenol is added after ultrasonic disperse 30min
Liquid continues ultrasonic disperse 1h, and glass powder is added, and 45 DEG C of heating water baths simultaneously stir 45min with the revolving speed of 120r/min, mixing is made
Liquid；
(2) mixed liquor is added in ball mill, ball milling is carried out with the revolving speed of 280r/min, takes out filtering after 3h, will be obtained after filtering
To powder to be transferred to vacuum degree be -0.10MPa, temperature is to obtain mixture after dry 5h in 80 DEG C of vacuum oven；
(3) it feeds the mixture into the beaker equipped with 25% acetic acid, 10% sodium hydroxide solution is added and adjusts pH, until pH=
11,45 DEG C of heating water baths simultaneously at the uniform velocity stir, and filter residue is taken out in filtering after 50min, and filter residue is washed with deionized, dries, be transferred to
In electrothermal furnace, it is passed through nitrogen discharge air, carries out wire drawing process after being heated to molten condition, bamboo/glass composite fibre, control is made
The weight ratio of mixture and acetic acid processed is 1: 5.
4. a kind of thermal insulation material for building according to claim 1, which is characterized in that the modified polyurethane is by such as lower section
Method is made:
(1) toluene di-isocyanate(TDI) and trimethylolethane are added in beaker, at the uniform velocity stirring 20min, are warming up to 50 DEG C, heat preservation
Sodium hydroxide is added in 4h, and polyurethane prepolymer solution is made after stirring 15min, controls toluene di-isocyanate(TDI), trihydroxy methyl second
Alkane, sodium hydroxide weight ratio be 2: 2: 1；
(2) nano aluminium oxide is added in the beaker equipped with KH550, at the uniform velocity stirring 5min, is warming up to 70 DEG C, flow back 35min, mistake
Filter, is washed with deionized three times, is transferred in 80 DEG C of drying boxes dry 2h, the nano aluminium oxide after modification is made, nano oxygen
Change aluminium, KH550, deionized water weight ratio be 1: 2: 8；
(3) nano aluminium oxide after modification is added in polyurethane prepolymer solution, is at the uniform velocity stirred and heated to 85 DEG C, reaction
Modified polyurethane emulsion is made in 5h, and modified polyurethane is made in filtering, drying, controls nano aluminium oxide and base polyurethane prepolymer for use as is molten
The weight ratio of liquid is 3: 1.
5. a kind of thermal insulation material for building according to claim 1, which is characterized in that the dispersing agent is triethyl group hexyl
One or more of phosphoric acid, lauryl sodium sulfate, methyl anyl alcohol.
6. a kind of thermal insulation material for building according to claim 1, which is characterized in that the crosslinking agent is that peroxidating two is different
One or more of propyl benzene, benzoyl peroxide, Diethylenetriamine.
7. a kind of thermal insulation material for building according to claim 1, which is characterized in that the environment-friendlyadhesive adhesive is polyvinyl alcohol ring
Protect one or both of glue, phenolic aldehyde-nitrile rubber.
8. a kind of preparation method of thermal insulation material for building, which comprises the steps of:
Step S1, diatomite (a) purification of diatomite: is put into Muffle furnace addition 150mL10% sulfuric acid after 350 DEG C of calcining 1h
In solution, 60 DEG C of heating water bath 2h；(b) 50mL20% sodium hydroxide solution is added into 10% sulfuric acid solution, is warming up to 80 DEG C,
Ultrasound stirs 20min；(c) it filters, the diatomite after purification is placed in a beaker, is rinsed with deionized water, in solution is in
Property, it filters again, after diatomite is placed in 80 DEG C of drying boxes dry 2h, grinding is sieved with 100 mesh sieve；
Step S2, by diatomite, nano-titanium dioxide, bamboo/glass composite fibre, modified polyurethane and the expanded pearlite after purification
Rock mixed grinding, sieves with 100 mesh sieve, and dispersing agent and crosslinking agent is then added, environment-friendlyadhesive adhesive, 45 DEG C of heating water baths are added after mixing
Deionized water is added after keeping the temperature 2h afterwards, mixed slurry is made after stirring 45min with the revolving speed of 120r/min；
Step S3, the mixed slurry in step S2 is poured into mold, control mold temperature be 125 DEG C, with die casting at
It is put into curing field after bulk, the insulated curing 3 days in the environment of 30 DEG C, demoulding foamed is shaped into for building of 15-25mm
Thermal insulation material.
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| CN110484117A (en) * | 2019-08-30 | 2019-11-22 | 安徽拓力工程材料科技有限公司 | Blade coating type aqueous double-component gage mark coating and preparation method thereof |
| CN111925154A (en) * | 2020-07-29 | 2020-11-13 | 马鞍山市金韩防水保温工程有限责任公司 | Wall surface insulation board based on ceramic fibers and preparation method thereof |
| CN112430373A (en) * | 2020-12-02 | 2021-03-02 | 句容市星辰新型材料有限公司 | Heat insulation material for building |
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| US20070173157A1 (en) * | 2006-01-26 | 2007-07-26 | Aspen Aerogels, Inc. | Flexible coherent insulating structures |
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| CN111925154A (en) * | 2020-07-29 | 2020-11-13 | 马鞍山市金韩防水保温工程有限责任公司 | Wall surface insulation board based on ceramic fibers and preparation method thereof |
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Application publication date: 20190517 |