CN109912900A - 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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Abstract
The invention discloses a kind of thermal insulation material for building and preparation method thereof, 1) raw material is weighed, polystyrene and talcum powder is added in Xiang Jiare reaction kettle, is heated to 130-170 DEG C, stirs evenly, mixing time is 5-8 minutes, obtains mixture；2) mixture in step 1) is placed in drying box after 2h and is taken out, then opened wide at room temperature and place 4-8h；It is spare to obtain A mixture；3) modified expansible graphite is added into stirred autoclave and ammonium polyphosphate is stirred mixing, mixing time is 2-6 minutes, and the phenolic resin that mass fraction is 90% is then added, is again stirring for mixing, and mixing time is 3-5 minutes, to prepare fire-retardant covering liquid；The present invention, the thermal insulation material of preparation have good heat insulating ability, anti-flammability, compression strength and frost resistance, while the thermal insulation material, light, good integrity, and firm with flyash and lime bonding.
Description
Technical field
The present invention relates to thermal insulation material technical fields, and in particular to a kind of thermal insulation material for building and preparation method thereof.
Background technique
Now, the house that we live both increases thermal insulation material, especially needs to keep in cold area, winter room
Certain preference temperature needs that thermal insulation material is added on the building house Ti Deng.
In the construction material heat preservation market in China, organic insulation material occupation rate is up to 90% or so.Currently used guarantor
Adiabator mainly has two major classes: the first kind is the inorganic heat insulation material of expanded perlite and thermal insulation mortar class, and the second class is with EPS
For organic foaming insulation board of representative.First kind inorganic heat insulation material is easy water suction, thermal insulation property degradation after water suction；Second
Easy to aging under the working environments such as high temperature, solarization although the organic foaming insulation board of class is not hygroscopic, long-term heat preservation performance can be tight
Decline again, and compression strength is relatively low.
It is heat-insulated that a kind of inorganic building exterior wall heat preserving is disclosed in the Chinese patent application application No. is 201110446320.6
The preparation method of material, although the heat preserving and insulating material intensity of preparation is high, thermal insulation property is high, the heat preserving and insulating material quality
Weight；Therefore need to design one kind light material of heat preservation for building and preparation method thereof.
Summary of the invention
In order to overcome above-mentioned technical problem, the purpose of the present invention is to provide a kind of thermal insulation material for building and its preparations
Method, thermal insulation material prepared by the present invention have good heat insulating ability, anti-flammability, compression strength and frost resistance, while the heat preservation
Material, light, good integrity, and it is firm with flyash and lime bonding.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of thermal insulation material for building, is prepared by following weight parts raw material: 80-100 parts of polystyrene, talcum powder 1-
2 parts, modified expansible graphite 3-5 parts, 0.5-2 parts of curing agent, 3-10 parts of phenolic resin, 5-10 parts of ammonium polyphosphate, flyash 10-
15 parts, 4-10 parts of lime, 0.1-1 parts of vinyl acetate, 0.1-1 parts of coupling agent, 0.1-1 parts of binder；
A kind of preparation method of thermal insulation material for building, thermal insulation material are prepared by following step:
1) raw material is weighed, polystyrene and talcum powder is added in Xiang Jiare reaction kettle, is heated to 130-170 DEG C, stirring is equal
Even, mixing time is 5-8 minutes, obtains mixture；
2) mixture in step 1) is placed in drying box after 2h and is taken out, then opened wide at room temperature and place 4-8h；?
It is spare to A mixture；
3) modified expansible graphite is added into stirred autoclave and ammonium polyphosphate is stirred mixing, mixing time 2-
6 minutes, the phenolic resin that mass fraction is 90% is then added, is again stirring for mixing, mixing time is 3-5 minutes, with preparation
Fire-retardant covering liquid；
4) covering liquid of preparation and the A mixture of preparation are kneaded 1-5 minutes by double roll mill, and solidification is added
Agent continues to be kneaded 2 minutes, obtains B mixture, then take out spare；
5) vinyl acetate, coupling agent and the binder being diluted with water are added into B mixture, is uniformly mixed
Afterwards, flyash and lime are added, first time stirring is carried out, mixing time is 30-40 minutes, is then stirred for the second time again
It mixes, mixing time is 10-20 minutes, obtains thermal insulation material.
As a further solution of the present invention: modified expansible graphite and ammonium polyphosphate are according to mass ratio in the step 3)
It is weighed for 1:2.
As a further solution of the present invention: the revolving speed of stirring is 500-600 revs/min for the first time in the step 5),
The revolving speed of second of stirring is 800-1000 revs/min.
As a further solution of the present invention: modified expansible graphite is prepared by following step in the step 3)
It arrives:
Step 1: being configured to saturated aqueous solution for 10-20 parts of sodium carbonate and 5-10 parts of anhydrous magnesium sulfates, each 20 times of dilution
Afterwards, it is added in reaction kettle, is first preheated to 60 DEG C, then be constantly stirred, then heat to 100 DEG C, and constant temperature 2 hours, most
, vacuum filtration cooling by room temperature, grinds to obtain basic magnesium carbonate 110 DEG C of drying；
Step 2: the 6.0mol/L sucrose solution that addition deionized water configures into flask is added 1-5 parts under stiring
Boric acid obtains sucrose borate after 100-120 DEG C of progress dehydration esterification, 30min, then with deionized water by sucrose borate
It is diluted to the solution that mass fraction is 50%, and closes during it is carried out with the basic magnesium carbonate for preparing in step 1 and reacts, finally
Obtain sucrose borate magnesium solution；
Step 3: the sulfuric acid that 100mL mass fraction is 98% being added into the beaker of 400mL, and adds deionized water dilution
It is 75% to mass fraction, after liquid to be diluted is cooled to room temperature, by 10-20 parts of natural graphites, 2-4 parts of potassium permanganate, 6-10 parts
Na4P2O7It is added sequentially in beaker, is uniformly mixed, 40min is reacted at 30-50 DEG C, after reaction, in beaker
Product is washed to cleaning solution without potassium permanganate color, and common expansible graphite is obtained by filtration, common expansible graphite is placed
It impregnates 2.0 hours in the sucrose borate magnesium solution prepared in step 2, is then filtered, filtered product is moved into steaming
It sends out in ware, it is 6 hours dry at 50-70 DEG C, it can both obtain modified expansible graphite.
As a further solution of the present invention: the thermal insulation material prepared in step 5) is put into thermal insulation material board mold
In, and template is suppressed by moulding press, moulding press pressing pressure is 7.5MPa, and then insulation board is made in naturally dry；
Manufactured insulation board is cut into template by cutting equipment.
As a further solution of the present invention: the cutting equipment includes crossbeam, bracket and station, two brackets it
Between be fixedly installed with station, crossbeam is fixedly connected at the top of two brackets, the side of the crossbeam, which is fixedly installed with, to be watched
Motor is taken, the other side of the crossbeam is horizontally disposed there are two belt pulleys, rotates wherein a belt pulley is driven by servo motor, two skins
It is connected between belt wheel by belt, the side upper end of fixed plate is fixedly mounted on belt, the side lower end of fixed plate and crossbeam
Upper horizontally disposed sliding rail is slidably connected by sliding block, and the other side of the fixed plate is fixedly installed with the first cylinder, and described the
The bottom of one cylinder is fixedly connected with second support bar, and the bottom of the second support bar is fixedly connected with push plate, the push plate
Bottom rotating electric machine is installed, serrated knife is installed, the external setting of the serrated knife on the output shaft of the rotating electric machine
There is shell；
The crossbeam has been symmetrically mounted at the bottom of two second cylinders, and the bottom of two second cylinders is mounted on first
Strut, the bottom of the first support bar open up fluted, and the top inner wall of the groove is provided with second spring, and described second
The bottom of spring is fixed with movable plate, and the bottom center of the movable plate is fixedly connected with connecting rod, and the connecting rod passes through
Groove is connect with pressing plate, and the bottom both ends of the movable plate are provided with the first spring, and two first springs are located at groove
It is interior.
As a further solution of the present invention: offering through-hole on the station, and be located at the underface of serrated knife.
Beneficial effects of the present invention:
1, thermal insulation material prepared by the present invention has good heat insulating ability, anti-flammability, compression strength and frost resistance, simultaneously should
Thermal insulation material, light, good integrity, and it is firm with flyash and lime bonding；
2, the present invention serves as nucleating agent in polystyrene systems, is the growth of bubble first by the way that talcum powder is added
Nuclei of bubbles is provided, polymer melt foam is controlled, modified expansible graphite and ammonium polyphosphate is then added, in polyphenyl second
The surface of alkene foam beads is coated with one layer of fire-retardant particle, is eventually adding flyash and lime, by stirring twice, improves anti-
Compressive Strength obtains thermal insulation material, so that polystyrene foam particles surface forms a layer silicate " shell ", further improves
Flame retardant property, so that the thermal insulation material, not only has good heat-insulating and fire-proof, while having good compression strength；
3, it by being modified processing to expansible graphite, is placed and is impregnated with sucrose borate magnesium solution, make it
Surface forms the protective layer of B, Mg, and element B, Mg can cooperate with expansible graphite to improve flame retardant effect, and ammonium polyphosphate degradation is inhaled
Heat reduces base burn temperature, while while decomposing discharges H2Substrate surface combustable gas concentration can be effectively reduced in O and ammonia,
Ammonium polyphosphate, sucrose borate magnesium and expansible graphite synergistic effect, the foamed char for forming flame-retardant layer basal plane is not only in thickness
It is increased on degree, while increases its consistency and mechanical strength, advantageously reduce the heat transfer and mass transfer ability of layer of charcoal；
4, insulation board is placed on station, first the second cylinder operation, first support bar decline is driven, under dynamic pressure plate
Drop compresses insulation board, carries out extruding fixation using the first spring and second spring, the first cylinder operation drives serrated knife
Decline, is cut, while servo motor works, and drives pulley rotation, and belt pulley drives fixed plate to move back by belt
Dynamic, fixed plate is slided on the slide rail, is guaranteed the stability of its movement, both serrated knife was driven to move back and forth, and cut.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is cutting equipment positive structure diagram of the present invention.
Fig. 2 is cutting equipment middle cross beam side structure schematic view of the present invention.
Fig. 3 is a-quadrant enlarged structure schematic diagram in Fig. 1.
In figure: 1, crossbeam；2, belt pulley；3, sliding rail；4, belt；5, bracket；6, first support bar；7, station；8, it presses
Plate；9, serrated knife；10, shell；11, push plate；12, second support bar；13, the first cylinder；14, fixed plate；15, the second cylinder；
16, servo motor；17, rotating electric machine；18, connecting rod；19, the first spring；20, movable plate；21, second spring；22, groove.
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 prepared by following weight parts raw material: 80 parts of polystyrene, changes 1 part of talcum powder
Property 3 parts of expansible graphite, 0.5 part of curing agent, 3 parts of phenolic resin, 5 parts of ammonium polyphosphate, 10 parts of flyash, 4 parts of lime, acetic acid second
0.1 part of enester, 0.1 part of coupling agent, 0.1 part of binder；
A kind of preparation method of thermal insulation material for building, thermal insulation material are prepared by following step:
1) raw material is weighed, polystyrene and talcum powder is added in Xiang Jiare reaction kettle, is heated to 130 DEG C, stirs evenly, stir
Mixing the time is 5 minutes, obtains mixture；
2) mixture in step 1) is placed in drying box after 2h and is taken out, then opened wide at room temperature and place 4h；Obtain A
Mixture is spare；
3) modified expansible graphite is added into stirred autoclave and ammonium polyphosphate is stirred mixing, is according to mass ratio
1:2 is weighed, and mixing time is 2 minutes, and the phenolic resin that mass fraction is 90% is then added, is again stirring for mixing, stir
Mixing the time is 3 minutes, to prepare fire-retardant covering liquid；
4) covering liquid of preparation and the A mixture of preparation are kneaded 1 minute by double roll mill, and curing agent are added,
Continue to be kneaded 2 minutes, obtains B mixture, then take out spare；
5) vinyl acetate, coupling agent and the binder being diluted with water are added into B mixture, is uniformly mixed
Afterwards, flyash and lime are added, first time stirring is carried out, mixing time is 30 minutes, and the revolving speed of stirring is 500 revs/min,
Then second of stirring is carried out again, and mixing time is 10 minutes, and the revolving speed of stirring is 800 revs/min, obtains thermal insulation material；
6) thermal insulation material prepared in step 5) is put into thermal insulation material board mold, and by moulding press to template into
Row compacting, then insulation board is made in naturally dry, and moulding press pressing pressure is 7.5MPa；
7) manufactured insulation board is cut into template by cutting equipment.
Modified expansible graphite is prepared by following step in the step 3):
Step 1: being configured to saturated aqueous solution for 10 parts of sodium carbonate and 5 parts of anhydrous magnesium sulfates, after each 20 times of dilution, is added
Into reaction kettle, 60 DEG C are first preheated to, then be constantly stirred, 100 DEG C, and constant temperature 2 hours are then heated to, most afterwards through room temperature
Cooling, vacuum filtration, grinds to obtain basic magnesium carbonate 110 DEG C of drying；
Step 2: 1 part of boron is added in the 6.0mol/L sucrose solution that addition deionized water configures into flask under stiring
Acid obtains sucrose borate after 100 DEG C of progress dehydration esterifications, 30min, is then diluted to sucrose borate with deionized water
The solution that mass fraction is 50%, and close during it is carried out with the basic magnesium carbonate for preparing in step 1 and react, finally obtain sugarcane
Sugared borate magnesium solution；
Step 3: the sulfuric acid that 100mL mass fraction is 98% being added into the beaker of 400mL, and adds deionized water dilution
It is 75% to mass fraction, after liquid to be diluted is cooled to room temperature, by 15 parts of natural graphites, 2 parts of potassium permanganate, 6 parts of Na4P2O7According to
It is secondary to be added in beaker, it is uniformly mixed, 40min is reacted at 30-50 DEG C, after reaction, the product in beaker is through water
Cleaning solution is washed till without potassium permanganate color, common expansible graphite is obtained by filtration, common expansible graphite is placed in step 2
It is impregnated 2.0 hours in the sucrose borate magnesium solution of preparation, is then filtered, filtered product is moved in evaporating dish,
It is 6 hours dry at 50 DEG C, it can both obtain modified expansible graphite.
Embodiment 2:
A kind of thermal insulation material for building, is prepared by following weight parts raw material: 90 parts of polystyrene, 1.5 parts of talcum powder,
Modified 4 parts of expansible graphite, 1 part of curing agent, 5 parts of phenolic resin, 7 parts of ammonium polyphosphate, 12 parts of flyash, 6 parts of lime, acetic acid second
0.5 part of enester, 0.5 part of coupling agent, 0.5 part of binder；
A kind of preparation method of thermal insulation material for building, thermal insulation material are prepared by following step: preparation method is same
Embodiment 1.
Modified expansible graphite is prepared by following step in the step 3): the preparation method is the same as that of Example 1.
Embodiment 3:
A kind of thermal insulation material for building, is prepared by following weight parts raw material: 100 parts of polystyrene, 2 parts of talcum powder,
Modified 5 parts of expansible graphite, 2 parts of curing agent, 10 parts of phenolic resin, 10 parts of ammonium polyphosphate, 15 parts of flyash, 10 parts of lime, second
1 part of vinyl acetate, 1 part of coupling agent, 1 part of binder；
A kind of preparation method of thermal insulation material for building, thermal insulation material are prepared by following step: preparation method is same
Embodiment 1.
Modified expansible graphite is prepared by following step in the step 3): the preparation method is the same as that of Example 1.
Comparative example 1:
A kind of thermal insulation material for building, is prepared by following weight parts raw material: 80 parts of polystyrene, changes 1 part of talcum powder
Property 3 parts of expansible graphite, 0.5 part of curing agent, 3 parts of phenolic resin, 5 parts of ammonium polyphosphate；
A kind of preparation method of thermal insulation material for building, thermal insulation material are prepared by following step:
1) raw material is weighed, polystyrene and talcum powder is added in Xiang Jiare reaction kettle, is heated to 130 DEG C, stirs evenly, stir
Mixing the time is 5 minutes, obtains mixture；
2) mixture in step 1) is placed in drying box after 2h and is taken out, then opened wide at room temperature and place 4h；Obtain A
Mixture is spare；
3) modified expansible graphite is added into stirred autoclave and ammonium polyphosphate is stirred mixing, is according to mass ratio
1:2 is weighed, and mixing time is 2 minutes, and the phenolic resin that mass fraction is 90% is then added, is again stirring for mixing, stir
Mixing the time is 3 minutes, to prepare fire-retardant covering liquid；
4) covering liquid of preparation and the A mixture of preparation are kneaded 1 minute by double roll mill, and curing agent are added,
Continue to be kneaded 2 minutes, obtains B mixture, then take out spare；
5) the B mixture prepared in step 4) is put into thermal insulation material board mold, and by moulding press to template into
Row compacting, then insulation board is made in naturally dry, and moulding press pressing pressure is 7.5MPa；
6) manufactured insulation board is cut into template by cutting equipment.
Modified expansible graphite is prepared by following step in the step 3): the preparation method is the same as that of Example 1.
Comparative example 2:
A kind of thermal insulation material for building, is prepared by following weight parts raw material: 80 parts of polystyrene, 1 part of talcum powder, can
3 parts of expanded graphite, 0.5 part of curing agent, 3 parts of phenolic resin, 5 parts of ammonium polyphosphate, 10 parts of flyash, 4 parts of lime, vinyl acetate
0.1 part, 0.1 part of coupling agent, 0.1 part of binder；
A kind of preparation method of thermal insulation material for building, thermal insulation material are prepared by following step: preparation method is same
Embodiment 1.
By the way that embodiment 1-3 and thermal insulation material prepared by comparative example 1-2 to be tested for the property, test result is as follows
Table:
Know, thermal insulation material prepared by embodiment 1-3 that there is good heat insulating ability, anti-flammability and compression strength by upper table,
And the compression strength of comparative example 1 is poor, but heat insulating ability and anti-flammability are also also possible that and the compression strength of comparative example 2 can be with,
But heat insulating ability is compared relatively not good enough long with anti-flammability, is because in embodiment 1-3, being modified place to expansible graphite first
Reason, is placed and is impregnated with sucrose borate magnesium solution, its surface is made to form the protective layer of B, Mg, and element B, Mg can be assisted
Flame retardant effect is improved with expansible graphite, ammonium polyphosphate degradation heat absorption discharges H when reducing base burn temperature, while decomposing2O
And ammonia, substrate surface combustable gas concentration, ammonium polyphosphate, sucrose borate magnesium and expansible graphite collaboration can be effectively reduced
Effect, the foamed char for forming flame-retardant layer basal plane not only increase on thickness, while increase its consistency and mechanical strength
Add, advantageously reduce the heat transfer and mass transfer ability of layer of charcoal, flyash then is added and lime is improved anti-by stirring twice
Compressive Strength obtains thermal insulation material, so that polystyrene foam particles surface forms a layer silicate " shell ", improves anti-flammability
Energy.
Frost resistance test experiments:
By thermal insulation material, after Frozen-thawed cycled 35 times, loss of strength 12.6%, mass loss 1.28% continues
Frozen-thawed cycled is to 50 times, and thermal insulation material appearance keeps good, and mass loss does not increase, and it is good anti-to illustrate that the thermal insulation material has
Jelly property.
It please refers to shown in Fig. 1-3, cutting equipment includes crossbeam 1, bracket 5 and station 7, is fixedly mounted between two stands 5
There is station 7, the top of two stands 5 is fixedly connected with crossbeam 1, and the side of crossbeam 1 is fixedly installed with servo motor 16, crossbeam 1
The other side it is horizontally disposed have two belt pulleys 2, rotate wherein a belt pulley 2 is driven by servo motor 16, lead between two belt pulleys 2
The connection of belt 4 is crossed, the side upper end of fixed plate 14 is fixedly mounted on belt 4, water on the side lower end of fixed plate 14 and crossbeam 1
The sliding rail 3 of flat setting is slidably connected by sliding block, and the other side of fixed plate 14 is fixedly installed with the first cylinder 13, the first cylinder 13
Bottom be fixedly connected with second support bar 12, the bottom of second support bar 12 is fixedly connected with push plate 11, the bottom of push plate 11
Rotating electric machine 17 is installed, serrated knife 9 is installed on the output shaft of rotating electric machine 17, the outside of serrated knife 9 is provided with shell 10；
Crossbeam 1 has been symmetrically mounted at the bottom of two second cylinders 15, and the bottom of two second cylinders 15 is mounted on the first support
Bar 6, the bottom of first support bar 6 open up fluted 22, and the top inner wall of groove 22 is provided with second spring 21, second spring 21
Bottom be fixed with movable plate 20, the bottom center of movable plate 20 is fixedly connected with connecting rod 18, and connecting rod 18 passes through groove
22 connect with pressing plate 8, and the bottom both ends of movable plate 20 are provided with the first spring 19, and two first springs 19 are located at groove 22
It is interior；Through-hole is offered on station 7, and is located at the underface of serrated knife 9, convenient for discharge clast.
The working principle of the invention: insulation board is placed on station 7, and the work of the second cylinder 15 first drives first
Strut 6 declines, and the band decline of dynamic pressure plate 8 compresses insulation board, squeeze using the first spring 19 and second spring 21 solid
Fixed, the work of the first cylinder 13 drives serrated knife 9 to decline, is cut, while servo motor 16 works, and drives 2 turns of belt pulley
Dynamic, belt pulley 2 drives fixed plate 14 to move back and forth by belt 4, and fixed plate 14 is slided on sliding rail 3, guarantees the steady of its movement
It is qualitative, it had both driven serrated knife 9 to move back and forth, had been cut.
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 prepared by following weight parts raw material: polystyrene 80-100
Part, 1-2 parts of talcum powder, modified expansible graphite 3-5 parts, 0.5-2 parts of curing agent, 3-10 parts of phenolic resin, ammonium polyphosphate 5-10
Part, 10-15 parts of flyash, 4-10 parts of lime, 0.1-1 parts of vinyl acetate, 0.1-1 parts of coupling agent, 0.1-1 parts of binder；
The thermal insulation material is prepared by following step:
1) raw material is weighed, polystyrene and talcum powder is added in Xiang Jiare reaction kettle, is heated to 130-170 DEG C, stirs evenly, stir
Mixing the time is 5-8 minutes, obtains mixture；
2) mixture in step 1) is placed in drying box after 2h and is taken out, then opened wide at room temperature and place 4-8h；It is mixed to obtain A
It is spare to close material；
3) modified expansible graphite is added into stirred autoclave and ammonium polyphosphate is stirred mixing, mixing time is 2-6 points
Then clock is added the phenolic resin that mass fraction is 90%, is again stirring for mixing, mixing time is 3-5 minutes, fire-retardant to prepare
Covering liquid；
4) covering liquid of preparation and the A mixture of preparation are kneaded 1-5 minutes by double roll mill, and curing agent is added, after
It is continuous to be kneaded 2 minutes, B mixture is obtained, is then taken out spare；
5) vinyl acetate, coupling agent and the binder being diluted with water are added into B mixture, after being uniformly mixed,
Flyash and lime are added, first time stirring is carried out, mixing time is 30-40 minutes, then carries out second of stirring again, stirs
Mixing the time is 10-20 minutes, obtains thermal insulation material.
2. a kind of preparation method of thermal insulation material for building, which is characterized in that thermal insulation material is prepared by following step:
1) raw material is weighed, polystyrene and talcum powder is added in Xiang Jiare reaction kettle, is heated to 130-170 DEG C, stirs evenly, stir
Mixing the time is 5-8 minutes, obtains mixture；
2) mixture in step 1) is placed in drying box after 2h and is taken out, then opened wide at room temperature and place 4-8h；It is mixed to obtain A
It is spare to close material；
3) modified expansible graphite is added into stirred autoclave and ammonium polyphosphate is stirred mixing, mixing time is 2-6 points
Then clock is added the phenolic resin that mass fraction is 90%, is again stirring for mixing, mixing time is 3-5 minutes, fire-retardant to prepare
Covering liquid；
4) covering liquid of preparation and the A mixture of preparation are kneaded 1-5 minutes by double roll mill, and curing agent is added, after
It is continuous to be kneaded 2 minutes, B mixture is obtained, is then taken out spare；
5) vinyl acetate, coupling agent and the binder being diluted with water are added into B mixture, after being uniformly mixed,
Flyash and lime are added, first time stirring is carried out, mixing time is 30-40 minutes, then carries out second of stirring again, stirs
Mixing the time is 10-20 minutes, obtains thermal insulation material.
3. a kind of preparation method of thermal insulation material for building according to claim 2, which is characterized in that in the step 3)
Modified expansible graphite and ammonium polyphosphate are weighed according to mass ratio for 1:2.
4. a kind of preparation method of thermal insulation material for building according to claim 2, which is characterized in that in the step 5)
The revolving speed of stirring is 500-600 revs/min for the first time, and the revolving speed of second of stirring is 800-1000 revs/min.
5. a kind of preparation method of thermal insulation material for building according to claim 2, which is characterized in that in the step 3)
Modified expansible graphite is prepared by following step:
Step 1: being configured to saturated aqueous solution for 10-20 parts of sodium carbonate and 5-10 parts of anhydrous magnesium sulfates, after each 20 times of dilution, adds
Enter into reaction kettle, be first preheated to 60 DEG C, then be constantly stirred, 100 DEG C, and constant temperature 2 hours is then heated to, most afterwards through room
Temperature is cooling, vacuum filtration, 110 DEG C of drying, grinds to obtain basic magnesium carbonate；
Step 2: 1-5 parts of boron are added in the 6.0mol/L sucrose solution that addition deionized water configures into flask under stiring
Acid obtains sucrose borate after 100-120 DEG C of progress dehydration esterification, 30min, then with deionized water that sucrose borate is dilute
It is interpreted into the solution that mass fraction is 50%, and closes during it is carried out with the basic magnesium carbonate for preparing in step 1 and reacts, finally must
To sucrose borate magnesium solution；
Step 3: the sulfuric acid that 100mL mass fraction is 98% is added into the beaker of 400mL, and deionized water is added to be diluted to matter
Measuring score is 75%, after liquid to be diluted is cooled to room temperature, by 10-20 parts of natural graphites, 2-4 parts of potassium permanganate, 6-10 parts
Na4P2O7It is added sequentially in beaker, is uniformly mixed, 40min is reacted at 30-50 DEG C, after reaction, in beaker
Product is washed to cleaning solution without potassium permanganate color, and common expansible graphite is obtained by filtration, common expansible graphite is placed
It impregnates 2.0 hours in the sucrose borate magnesium solution prepared in step 2, is then filtered, filtered product is moved into steaming
It sends out in ware, it is 6 hours dry at 50-70 DEG C, it can both obtain modified expansible graphite.
6. a kind of preparation method of thermal insulation material for building according to claim 2, which is characterized in that by system in step 5)
Standby thermal insulation material is put into thermal insulation material board mold, and is suppressed by moulding press template, moulding press pressing pressure
For 7.5MPa, then insulation board is made in naturally dry；Manufactured insulation board is cut into template by cutting equipment.
7. a kind of preparation method of thermal insulation material for building according to claim 6, which is characterized in that the cutting equipment
Including crossbeam (1), bracket (5) and station (7), it is fixedly installed with station (7) between two brackets (5), two branch
It is fixedly connected at the top of frame (5) crossbeam (1), the side of the crossbeam (1) is fixedly installed with servo motor (16), the crossbeam
(1) the other side is horizontally disposed two belt pulleys (2), rotates wherein a belt pulley (2) is driven by servo motor (16), two belts
It takes turns and is connected between (2) by belt (4), the side upper end of fixed plate (14) is fixedly mounted on belt (4), fixed plate (14)
Side lower end is slidably connected with sliding rail (3) horizontally disposed on crossbeam (1) by sliding block, and the other side of the fixed plate (14) is solid
Dingan County is equipped with the first cylinder (13), and the bottom of first cylinder (13) is fixedly connected with second support bar (12), and described second
The bottom of support rod (12) is fixedly connected with push plate (11), and the bottom of the push plate (11) is equipped with rotating electric machine (17), described
It is equipped on the output shaft of rotating electric machine (17) serrated knife (9), the outside of the serrated knife (9) is provided with shell (10)；
The crossbeam (1) has been symmetrically mounted at the bottom of two second cylinders (15), and the bottom of two second cylinders (15) is respectively mounted
Have first support bar (6), the bottom of the first support bar (6) opens up fluted (22), the top inner wall of the groove (22)
It is provided with second spring (21), the bottom of the second spring (21) is fixed with movable plate (20), the bottom of the movable plate (20)
It is fixedly connected at portion center connecting rod (18), the connecting rod (18) passes through groove (22) and connect with pressing plate (8), the activity
The bottom both ends of plate (20) are provided with the first spring (19), and two first springs (19) are located in groove (22).
8. a kind of preparation method of thermal insulation material for building according to claim 7, which is characterized in that the station
(7) through-hole is offered on, and is located at the underface of serrated knife (9).
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