CN105948636B - A kind of enhanced modified expanded perlite insulation board of polyacrylate and its production method - Google Patents
A kind of enhanced modified expanded perlite insulation board of polyacrylate and its production method Download PDFInfo
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- CN105948636B CN105948636B CN201610277741.3A CN201610277741A CN105948636B CN 105948636 B CN105948636 B CN 105948636B CN 201610277741 A CN201610277741 A CN 201610277741A CN 105948636 B CN105948636 B CN 105948636B
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
- C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a kind of enhanced modified expanded perlite insulation board of polyacrylate and its production method, described modified expanded perlite insulation board includes the component of following parts by weight meter：10 20 parts of 18 25 parts of cement, 58 parts of flyash, 25 parts of MTMS, 5 10 parts of polyacrylate dispersion, 50 70 parts of modified expanded perlite, 0.7 2.9 parts of neopelex, 5 10 parts of additive, 13 parts of quick lime, 0.1 0.5 parts of PP fibers, 0.5 2 parts of hydroxypropyl methyl cellulose, 5 10 parts of kaolin and water.Modified expanded perlite insulation board of the present invention is effectively utilized industrial and mineral dead meal using cement, flyash, kaolin, PP fibers and other organic and inorganic things as raw material, and without addition poisonous and harmful substance, it is green.The raw material sources of modified expanded perlite insulation board of the present invention are extensive, cost is low, simple production process, easily operated, disclosure satisfy that the demand of different construction materials, have good social and economic benefit.
Description
Technical field
The present invention relates to a kind of enhanced modified expanded perlite insulation board of polyacrylate and its production method, belong to and build
Build field of material technology.
Background technology
Building energy conservation is the industry that national industrial policies are given special assistance to.At present, energy-saving building materialses are broadly divided into inorganic guarantor
The warm light bone material of lightweight aggregate and organic heat-insulating, but the characteristics of due to chemical material matter, whether inorganic system or organic
System, the requirement of properties of heat preservation and energy saving and security against fire can not be all taken into account simultaneously：For heat-insulating property, organic material is better than nothing
Machine material；Consider from Performance-based fire, A level anti-flammability insulation materials are only selection again.In recent years, inorganic heat insulation material
For middle expanded perlite with its excellent fire retardancy energy, the advantage such as environmentally safe is just progressively turning into the head of inorganic external wall thermal-insulation material
Choosing.
Expanded perlite as a kind of nonmetallic mineral material, be widely used in building, metallurgy, oil, chemical industry, light industry,
The fields such as electric power, transport and agricultural.1.27 hundred million tons of District, Xinyang Area, Henan Province spinal cord perlite mineral reserve proved reserves, occupy " Asia first, generation
Boundary the second ", account for more than the 70% of China's perlite commercial reserves.In building trade, by spherical the closing of Xinyang Normal College's research
After hole perlite realizes industrialization, expanded perlite is just widely used in the light bone material of external wall insulation.But due to each
Kind reason, the application of expanded perlite thermal-nsulation plate also suffer from some limitations.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of enhanced modified expanded perlite insulation of polyacrylate
Plate and its production method, the modified expanded perlite insulation board have fire protecting performance is superior, light, intensity is high, thermal conductivity factor is low,
Water absorption rate is low, pliability is good, the features such as having good workability.
To achieve these goals, the technical solution adopted in the present invention is to provide a kind of enhanced modification of polyacrylate
Expanded perlite thermal-nsulation plate, include the component of following parts by weight meter：Cement 18-25 parts, flyash 5-8 parts, methyl trimethoxy epoxide
Silane 2-5 parts, polyacrylate dispersion 5-10 parts, modified expanded perlite 50-70 parts, neopelex 0.7-2.9
Part, additive 5-10 parts, quick lime 1-3 parts, PP fiber 0.1-0.5 parts, hydroxypropyl methyl cellulose 0.5-2 parts, kaolin 5-
10 parts and water 10-20 parts.
The model PO52.5 of described cement.
The fineness of described flyash is 12% (R45), loss on ignition 5%, sulfur trioxide content 3%.
The specific preparation method of described modified expanded perlite is：It is swollen that perlite is heated to 1000-1300 DEG C of progress
Change is handled, and is made 7-10 times of perlite volumetric expansion, is obtained expanded perlite, then cool, when temperature is down to 100-200 DEG C,
Expanded perlite gross weight 5-10% MTMS is sprayed to expanded perlite, continues to be cooled to room temperature, crosses 20-
30 mesh sieves, are produced.
Described additive includes the component of following parts by weight meter：Calcium sulfate 25-35 parts, aluminum oxide 2-5 parts, triethanolamine
0.2-5 parts, trbasic zinc phosphate 5-10 parts and iron oxide 15-20 parts.
The length of described PP fibers is 12-16mm.
The technical solution adopted in the present invention, which also resides in, provides a kind of polyacrylate enhanced modified expanded perlite guarantor
The production method of warm plate, comprises the following steps：
(1) it is flyash, additive, polyacrylate dispersion, PP fibers, kaolin, quick lime and hydroxypropyl methyl is fine
Dimension element is mixed and stirred for uniformly, adding cement and neopelex continuing to stir, obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds MTMS and water, stirring is equal
It is even, continuous mould pressing shaping, obtain half-dried modified expanded perlite insulation board；
(3) half-dried modified expanded perlite insulation board is subjected to heating curing；
(4) after heating curing terminates, start drying, dry to modified expanded perlite insulation board water content and be less than 5%, i.e.,
Can kiln discharge.
Equipment used in continuous mould pressing shaping is hydraulic press in step (2), and the pressure of hydraulic press is 50t.
Heat-cured temperature is 20-70 DEG C in step (3), time 10-24h.
The heating curing of modified expanded perlite insulation board can use the conventional method of this area.The present invention is will be half-dried
Modified expanded perlite insulation board is sent into tunnel cave, closure of a tunnel kiln wicket, opens biomass particle burning machine and air-heater
Heating curing is carried out to half-dried modified expanded perlite insulation board.
The temperature dried in step (4) is 90-120 DEG C.
Beneficial effect
1st, fire protecting performance is superior.Modified expanded perlite insulation board of the present invention mainly uses inorganic incombustible material, energy
The fire protecting performance of warming plate is enough effectively improved, the combustibility of modified expanded perlite insulation board of the present invention is up to A1 levels.
2nd, it is light, intensity is high, thermal conductivity factor is low.Modified expanded perlite insulation board material of the present invention is made using high-mark cement
For major gelled material, while mix PP fibers, flyash, quick lime, neopelex, additive, hydroxypropyl first outside
Base cellulose and kaolin improve the intensity of binder materials, make insulation material on the basis of resistance to compression, rupture strength is ensured significantly
Reduce dry density, make sheet material that there is higher intensity and relatively low thermal conductivity factor, so as to ensure heat preservation plate material and system have it is good
Good heat-insulating property.
3rd, it is good with the tack coat and cracking resistance protective layer compatibility of heat-insulation system.Because modified expanded perlite of the present invention is incubated
Plate as main binder materials, not using sodium silicate and containing sodium silicate or contains chlorion cement using high-mark cement
Additive, ensure that modified expanded perlite insulation board material and heat-insulation system are not in the problems such as accumulation of salt in the surface soil returns chlorine from root, together
When the present invention warming plate and bonding mortar that heat-insulation system uses, anticracking grout composition it is substantially similar, ensure that System compatible
Property it is good, will not occur hollowing cracking phenomena such as, can be with the building same life-span.
4th, pliability is good, backfin ratio is reasonable, has good workability.Modified expanded perlite insulation board of the present invention uses half siccative
Mould pressing technology and using the preferable polyacrylate dispersion of pliability as binder materials additive, and warming plate material is from modification
Expanded perlite is fabricated into plate moulding shaping, and all using automated production, product pliability is good, backfin is than reasonable, quality
It is stable, reduce work progress modified expanded perlite insulation board breakage rate.
5th, water absorption rate is low.The modified expanded perlite insulation board of the present invention adds MTMS as hydrophobic
Agent, and by modified expanded perlite, optimize the proportionate relationship of each component, reduce the water absorption rate of warming plate, increase the service life.
6th, it is green.Modified expanded perlite insulation board of the present invention with cement, flyash, kaolin, PP fibers and its
Its organic and inorganic thing is effectively utilized industrial and mineral dead meal as raw material, and without addition poisonous and harmful substance, it is green.
The 7th, although expanded perlite can reach the mesh of raising heat insulation effect by improving vitreous rate in process of production
, but still with the presence of the perforate perlite close to 30%, in order to reduce the water absorption rate of this demi-inflation perlite, the present invention
Spray MTMS in temperature-fall period after puffing furnace is expanded, modified expanded perlite is to reach the purpose of hydrophobic.
8th, the heating curing temperature and time of the invention by controlling half-dried warming plate, controls drying temperature, Neng Goujin
One step improves the properties of warming plate.
9th, test result indicates that, the dry density of modified expanded perlite insulation board of the present invention is less than 186kg/m3, pressure resistance
Degree is more than 0.63MPa, and thermal conductivity factor is less than 0.052W/ (m.k), and rupture strength is more than 0.45MPa, and mass water content is less than
4.3%, it is more than 0.32MPa perpendicular to board direction tensile strength, volume water absorption rate is less than 8.0%, and coefficient of softing is more than 0.88,
Mass loss rate is less than 3.6%, and compression strength loss rate is less than 22%, and hydrophobic rate is more than 99.2%.
10th, the raw material sources of modified expanded perlite insulation board of the present invention are extensive, cost is low, simple production process, are easy to
Operation, disclosure satisfy that the demand of different construction materials, has good social and economic benefit.
Embodiment
The embodiment of the present invention is described in further detail with reference to embodiments.
The requirement of raw material used is in the present invention：
The model PO52.5 of cement.
The fineness of flyash is 12% (R45), loss on ignition 5%, sulfur trioxide content 3%.
The length of PP fibers is 16mm.
Polyacrylate dispersion is purchased from Taiyuan City Jinyuan District Jin Yuan Building Materials Factories.
Embodiment 1
The enhanced modified expanded perlite insulation board of polyacrylate of the present embodiment, include the group of following parts by weight meter
Point：18 parts of cement, 5 parts of flyash, 5 parts of MTMS, 10 parts of polyacrylate dispersion, modified expanded perlite 50
Part, 2 parts of neopelex, 8 parts of additive, 1 part of quick lime, 0.3 part of PP fibers, 0.5 part of hydroxypropyl methyl cellulose,
10 parts of 5 parts of kaolin and water.
Described additive includes the component of following parts by weight meter：30 parts of calcium sulfate, 5 parts of aluminum oxide, 3 parts of triethanolamine,
15 parts of 10 parts of trbasic zinc phosphate and iron oxide.
The specific preparation method of described modified expanded perlite is：Perlite is heated to 1000 DEG C and carries out expanded place
Reason, makes 7 times of perlite volumetric expansion, obtains expanded perlite, then cool, when temperature is down to 150 DEG C, to expanded perlite
The MTMS of expanded perlite gross weight 5% is sprayed, continues to be cooled to room temperature, crosses 20 mesh sieves, produce.
The production method of the enhanced modified expanded perlite insulation board of polyacrylate of the present embodiment, including following step
Suddenly：
(1) it is flyash, additive, polyacrylate dispersion, PP fibers, kaolin, quick lime and hydroxypropyl methyl is fine
Dimension element adds forced stirrer and is mixed and stirred for 15min, adds cement and neopelex continues to stir 15min,
Obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds MTMS and water, stirring is equal
It is even, the shaping of hydraulic press continuous mould pressing is delivered to, obtains half-dried modified expanded perlite insulation board；Hydraulic press pressure is 50t；
(3) half-dried modified expanded perlite insulation board is subjected to heating curing, heat-cured temperature is 20 DEG C, the time
For 24h；
(4) after heating curing terminates, drying is started, drying temperature is 90 DEG C, is dried to modified expanded perlite insulation board
Water content is less than 5%, you can kiln discharge.
Embodiment 2
The enhanced modified expanded perlite insulation board of polyacrylate of the present embodiment, include the group of following parts by weight meter
Point：20 parts of cement, 8 parts of flyash, 2 parts of MTMS, 5 parts of polyacrylate dispersion, modified expanded perlite 60
Part, 0.7 part of neopelex, 5 parts of additive, 2 parts of quick lime, 0.1 part of PP fibers, 2 parts of hydroxypropyl methyl cellulose,
15 parts of 10 parts of kaolin and water.
Described additive includes the component of following parts by weight meter：25 parts of calcium sulfate, 3 parts of aluminum oxide, triethanolamine 0.2
20 parts of part, 5 parts of trbasic zinc phosphate and iron oxide.
The specific preparation method of described modified expanded perlite is：Perlite is heated to 1300 DEG C and carries out expanded place
Reason, makes 10 times of perlite volumetric expansion, obtains expanded perlite, then cool, when temperature is down to 100 DEG C, to expanded pearlite
Rock sprays the MTMS of expanded perlite gross weight 10%, continues to be cooled to room temperature, crosses 20 mesh sieves, produce.
The production method of the enhanced modified expanded perlite insulation board of polyacrylate of the present embodiment, including following step
Suddenly：
(1) it is flyash, additive, polyacrylate dispersion, PP fibers, kaolin, quick lime and hydroxypropyl methyl is fine
Dimension element adds forced stirrer and is mixed and stirred for 10min, adds cement and neopelex continues to stir 40min,
Obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds MTMS and water, stirring is equal
It is even, the shaping of hydraulic press continuous mould pressing is delivered to, obtains half-dried modified expanded perlite insulation board；Hydraulic press pressure is 50t；
(3) half-dried modified expanded perlite insulation board is subjected to heating curing, heat-cured temperature is 50 DEG C, the time
For 20h；
(4) after heating curing terminates, drying is started, drying temperature is 100 DEG C, is dried to modified expanded perlite insulation board
Water content is less than 5%, you can kiln discharge.
Embodiment 3
The enhanced modified expanded perlite insulation board of polyacrylate of the present embodiment, include the group of following parts by weight meter
Point：25 parts of cement, 6 parts of flyash, 4 parts of MTMS, 8 parts of polyacrylate dispersion, modified expanded perlite 70
Part, 2.9 parts of neopelex, 10 parts of additive, 3 parts of quick lime, 0.5 part of PP fibers, hydroxypropyl methyl cellulose 1
20 parts of part, 8 parts of kaolin and water.
Described additive includes the component of following parts by weight meter：35 parts of calcium sulfate, 2 parts of aluminum oxide, 5 parts of triethanolamine,
16 parts of 8 parts of trbasic zinc phosphate and iron oxide.
The specific preparation method of described modified expanded perlite is：Perlite is carried out being heated to 1200 DEG C of progress expanded
Processing, makes 7 times of perlite volumetric expansion, obtains expanded perlite, then cool, when temperature is down to 200 DEG C, to expanded pearlite
Rock sprays the MTMS of expanded perlite gross weight 8%, continues to be cooled to room temperature, crosses 30 mesh sieves, produce.
The production method of the enhanced modified expanded perlite insulation board of polyacrylate of the present embodiment, including following step
Suddenly：
(1) it is flyash, additive, polyacrylate dispersion, PP fibers, kaolin, quick lime and hydroxypropyl methyl is fine
Dimension element adds forced stirrer and is mixed and stirred for 20min, adds cement and neopelex continues to stir 20min,
Obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds MTMS and water, stirring is equal
It is even, the shaping of hydraulic press continuous mould pressing is delivered to, obtains half-dried modified expanded perlite insulation board；Hydraulic press pressure is 50t；
(3) half-dried modified expanded perlite insulation board is subjected to heating curing, heat-cured temperature is 70 DEG C, the time
For 10h；
(4) after heating curing terminates, drying is started, drying temperature is 120 DEG C, is dried to modified expanded perlite insulation board
Water content is less than 5%, you can kiln discharge.
Experimental example one
Using the modified expanded perlite insulation board of embodiment 1 as experiment material, verify the PP fibers of different length to modification
The intensity effect of expanded perlite thermal-nsulation plate, the results are shown in Table 1.
Intensity effect of the PP fibers of the different length of table 1 to modified expanded perlite insulation board
| PP fibre lengths | Compression strength | Rupture strength | Fiber batch mixing situation |
| 6mm | 0.39MPa | 0.14MPa | It is well dispersed |
| 8mm | 0.41MPa | 0.22MPa | It is well dispersed |
| 10mm | 0.43MPa | 0.24MPa | It is well dispersed |
| 12mm | 0.52MPa | 0.39MPa | It is well dispersed |
| 14mm | 0.59MPa | 0.43MPa | It is well dispersed |
| 16mm | 0.64MPa | 0.46MPa | It is well dispersed |
| 18mm | 0.65MPa | 0.47MPa | It is not easy to disperse |
| 20mm | 0.67MPa | 0.49MPa | It is not easy to disperse |
Experimental example two
Using the expanded perlite of the present invention as experiment material, according to the preparation method of the modified expanded perlite of embodiment 1,
Only changing the temperature that sprays of MTMS, checking difference sprays temperature to be influenceed on modified expanded perlite hydrophobicity,
It the results are shown in Table 2.
The difference of table 2 sprays temperature to be influenceed on modified expanded perlite hydrophobicity
| The perlite place of production | Spray temperature | Hydrophobic rate |
| Xinyang spinal cord | 200℃ | 98.8% |
| Xinyang spinal cord | 150℃ | 99.2% |
| Xinyang spinal cord | 100℃ | 99.1% |
Experimental example three
Using the modified expanded perlite insulation board of the present invention as experimental group, and use commercially available expanded perlite thermal-nsulation plate
As control, property indices are detected, the results are shown in Table 3.
The property indices of 3 modified expanded perlite insulation board of the present invention of table
Claims (7)
1. a kind of enhanced modified expanded perlite insulation board of polyacrylate, it is characterised in that including following parts by weight meter
Component：Cement 18-25 parts, flyash 5-8 parts, MTMS 2-5 parts, polyacrylate dispersion 5-10 parts, modification
Expanded perlite 50-70 parts, neopelex 0.7-2.9 parts, additive 5-10 parts, quick lime 1-3 parts, PP fibers
0.1-0.5 parts, hydroxypropyl methyl cellulose 0.5-2 parts, kaolin 5-10 parts and water 10-20 parts；The length of described PP fibers
For 12-16mm；
The specific preparation method of described modified expanded perlite is：Perlite is heated to 1000-1300 DEG C and carries out expanded place
Reason, makes 7-10 times of perlite volumetric expansion, obtains expanded perlite, then cool, when temperature is down to 100-200 DEG C, to swollen
Swollen perlite sprays expanded perlite gross weight 5-10% MTMS, continues to be cooled to room temperature, crosses 20-30 mesh
Sieve, is produced；
Described additive includes the component of following parts by weight meter：Calcium sulfate 25-35 parts, aluminum oxide 2-5 parts, triethanolamine 0.2-
5 parts, trbasic zinc phosphate 5-10 parts and iron oxide 15-20 parts.
2. the enhanced modified expanded perlite insulation board of polyacrylate according to claim 1, it is characterised in that described
Cement model PO52.5.
3. the enhanced modified expanded perlite insulation board of polyacrylate according to claim 1, it is characterised in that described
The fineness of flyash be 12%R45, loss on ignition 5%, sulfur trioxide content 3%.
4. a kind of production method of the enhanced modified expanded perlite insulation board of polyacrylate as claimed in claim 1, its
It is characterised by, comprises the following steps：
（1）By flyash, additive, polyacrylate dispersion, PP fibers, kaolin, quick lime and hydroxypropyl methyl cellulose
It is mixed and stirred for uniformly, adding cement and neopelex continuing to stir, obtain rubber powder material；
（2）Modified expanded perlite and rubber powder material are mixed, MTMS and water is added, stirs,
Continuous mould pressing is molded, and obtains half-dried modified expanded perlite insulation board；
（3）Half-dried modified expanded perlite insulation board is subjected to heating curing；
（4）After heating curing terminates, start drying, dry to modified expanded perlite insulation board water content and be less than 5%, you can go out
Kiln.
5. the production method of the enhanced modified expanded perlite insulation board of polyacrylate according to claim 4, it is special
Sign is, step（2）Equipment used in middle continuous mould pressing shaping is hydraulic press, and the pressure of hydraulic press is 50t.
6. the production method of the enhanced modified expanded perlite insulation board of polyacrylate according to claim 4, it is special
Sign is, step（3）In heat-cured temperature be 20-70 DEG C, time 10-24h.
7. the production method of the enhanced modified expanded perlite insulation board of polyacrylate according to claim 4, it is special
Sign is, step（4）The temperature of middle drying is 90-120 DEG C.
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