CN105948606B - A kind of enhanced modified expanded perlite insulation board of polypropylene fibre and its production method - Google Patents
A kind of enhanced modified expanded perlite insulation board of polypropylene fibre and its production method Download PDFInfo
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- CN105948606B CN105948606B CN201610278022.3A CN201610278022A CN105948606B CN 105948606 B CN105948606 B CN 105948606B CN 201610278022 A CN201610278022 A CN 201610278022A CN 105948606 B CN105948606 B CN 105948606B
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- 239000010451 perlite Substances 0.000 title claims abstract description 116
- 235000019362 perlite Nutrition 0.000 title claims abstract description 116
- 238000009413 insulation Methods 0.000 title claims abstract description 55
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 41
- 239000000835 fiber Substances 0.000 title claims abstract description 40
- -1 polypropylene Polymers 0.000 title claims abstract description 35
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000654 additive Substances 0.000 claims abstract description 19
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 19
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims abstract description 18
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 239000006185 dispersion Substances 0.000 claims abstract description 13
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 13
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 12
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 12
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 12
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 5
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 5
- 238000010792 warming Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000004035 construction material Substances 0.000 abstract description 2
- 235000012054 meals Nutrition 0.000 abstract description 2
- 231100000614 poison Toxicity 0.000 abstract description 2
- 230000007096 poisonous effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 210000000278 spinal cord Anatomy 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- 241001640558 Cotoneaster horizontalis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of enhanced modified expanded perlite insulation board of polypropylene fibre and its production method, described warming plate 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 propyl trimethoxy silicane, 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, 0.1 0.5 parts of polypropylene fibre, 0.5 2 parts of hydroxypropyl methyl cellulose and water.Modified expanded perlite insulation board of the present invention is effectively utilized industrial and mineral dead meal using cement, flyash, 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 polypropylene fibre 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 polypropylene fibre
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 polypropylene fibre
Expanded perlite thermal-nsulation plate, include the component of following parts by weight meter：Cement 18-25 parts, flyash 5-8 parts, propyl trimethoxy
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, polypropylene fibre 0.1-0.5 parts, hydroxypropyl methyl cellulose 0.5-2 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% propyl trimethoxy silicane 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 polypropylene fibres is 12-16mm.
The technical solution adopted in the present invention, which also resides in, provides a kind of polypropylene fibre enhanced modified expanded perlite guarantor
The production method of warm plate, comprises the following steps：
(1) flyash, additive, polyacrylate dispersion, polypropylene fibre and hydroxypropyl methyl cellulose are mixed simultaneously
Stir, add cement and neopelex continues to stir, obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds propyl trimethoxy silicane 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, at the same mix outside polypropylene fibre, flyash, hydroxypropyl methyl cellulose, neopelex and
Additive improves the intensity of binder materials, insulation material is substantially reduced dry density on the basis of resistance to compression, rupture strength is ensured,
Make sheet material that there is higher intensity and relatively low thermal conductivity factor, so as to ensure that heat preservation plate material and system have good heat insulating ability
Energy.
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, construction
Performance is good, steady quality, reduces 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 propyl trimethoxy silicane 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, PP fibers and it is other it is organic,
Inorganic matter 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 propyl trimethoxy silicane 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 187kg/m3, pressure resistance
Degree is more than 0.6MPa, and thermal conductivity factor is less than 0.054W/ (m.k), and rupture strength is more than 0.4MPa, and mass water content is less than 4.3%,
It is more than 0.24MPa perpendicular to board direction tensile strength, volume water absorption rate is less than 8.0%, and coefficient of softing is more than 0.88, quality damage
Mistake rate is less than 4.0%, and compression strength loss rate is less than 23%, and hydrophobic rate is more than 99.0%.
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 polypropylene fibre 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 polypropylene fibre of the present embodiment, include the group of following parts by weight meter
Point：20 parts of cement, 5 parts of flyash, 5 parts of propyl trimethoxy silicane, 10 parts of polyacrylate dispersion, modified expanded perlite 50
Part, 2 parts of neopelex, 8 parts of additive, 0.3 part of polypropylene fibre, 0.5 part of hydroxypropyl methyl cellulose and water 10
Part.
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 propyl trimethoxy silicane 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 polypropylene fibre of the present embodiment, including following step
Suddenly：
(1) flyash, additive, polyacrylate dispersion, polypropylene fibre and hydroxypropyl methyl cellulose are added strong
Mixer processed is mixed and stirred for 15min, adds cement and neopelex continues to stir 30min, obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds propyl trimethoxy silicane 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, dry temperature is 90 DEG C, dries to modified expanded perlite and is incubated
Plate water content is less than 5%, you can kiln discharge.
Embodiment 2
The enhanced modified expanded perlite insulation board of polypropylene fibre of the present embodiment, include the group of following parts by weight meter
Point：18 parts of cement, 8 parts of flyash, 2 parts of propyl trimethoxy silicane, 5 parts of polyacrylate dispersion, modified expanded perlite 60
Part, 0.7 part of neopelex, 5 parts of additive, 0.1 part of polypropylene fibre, 2 parts of hydroxypropyl methyl cellulose and water 15
Part.
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 propyl trimethoxy silicane 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 polypropylene fibre of the present embodiment, including following step
Suddenly：
(1) flyash, additive, polyacrylate dispersion, polypropylene fibre and hydroxypropyl methyl cellulose are added strong
Mixer processed is mixed and stirred for 10min, adds cement and neopelex continues to stir 20min, obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds propyl trimethoxy silicane 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, dry temperature is 100 DEG C, dries to modified expanded perlite and is incubated
Plate water content is less than 5%, you can kiln discharge.
Embodiment 3
The enhanced modified expanded perlite insulation board of polypropylene fibre 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 propyl trimethoxy silicane, 8 parts of polyacrylate dispersion, modified expanded perlite 70
Part, 2.9 parts of neopelex, 10 parts of additive, 0.5 part of polypropylene fibre, 1 part of hydroxypropyl methyl cellulose and water 20
Part.
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 heated to 1200 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 200 DEG C, to expanded perlite
The propyl trimethoxy silicane of expanded perlite gross weight 8% is sprayed, continues to be cooled to room temperature, crosses 30 mesh sieves, produce.
The production method of the enhanced modified expanded perlite insulation board of polypropylene fibre of the present embodiment, including following step
Suddenly：
(1) flyash, additive, polyacrylate dispersion, polypropylene fibre and hydroxypropyl methyl cellulose are added strong
Mixer processed is mixed and stirred for 20min, adds cement and neopelex continues to stir 40min, obtain rubber powder material；
(2) modified expanded perlite and rubber powder material are mixed, adds propyl trimethoxy silicane 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, dry temperature is 120 DEG C, dries to modified expanded perlite and is incubated
Plate 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 | 0.40MPa | 0.17MPa | It is well dispersed |
| 8mm | 0.43MPa | 0.19MPa | It is well dispersed |
| 10mm | 0.45MPa | 0.22MPa | It is well dispersed |
| 12mm | 0.50MPa | 0.36MPa | It is well dispersed |
| 14mm | 0.58MPa | 0.41MPa | It is well dispersed |
| 16mm | 0.64MPa | 0.44MPa | It is well dispersed |
| 18mm | 0.65MPa | 0.45MPa | It is not easy to disperse |
| 20mm | 0.66MPa | 0.47MPa | 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 propyl trimethoxy silicane, 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℃ | 99.0% |
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 polypropylene fibre, it is characterised in that by the group of following parts by weight meter
It is grouped into：Cement 18-25 parts, flyash 5-8 parts, propyl trimethoxy silicane 2-5 parts, polyacrylate dispersion 5-10 parts, change
Property expanded perlite 50-70 parts, neopelex 0.7-2.9 parts, additive 5-10 parts, polypropylene fibre 0.1-0.5
Part, hydroxypropyl methyl cellulose 0.5-2 parts and water 10-20 parts；
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% propyl trimethoxy silicane, continues to be cooled to room temperature, crosses 20-30 mesh
Sieve, is produced；
Described additive is made up of 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 polypropylene fibre is 12-16mm.
2. the enhanced modified expanded perlite insulation board of polypropylene fibre according to claim 1, it is characterised in that described
Cement model PO52.5.
3. the enhanced modified expanded perlite insulation board of polypropylene fibre 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 polypropylene fibre as claimed in claim 1, its
It is characterised by, comprises the following steps：
（1）Flyash, additive, polyacrylate dispersion, polypropylene fibre and hydroxypropyl methyl cellulose are mixed and stirred for
Uniformly, add cement and neopelex continues to stir, obtain rubber powder material；
（2）Modified expanded perlite and rubber powder material are mixed, propyl trimethoxy silicane 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 polypropylene fibre 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 polypropylene fibre 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 polypropylene fibre 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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