CN115027072A - High-durability composite rock wool processing technology and structure thereof - Google Patents
High-durability composite rock wool processing technology and structure thereof Download PDFInfo
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- CN115027072A CN115027072A CN202210698430.XA CN202210698430A CN115027072A CN 115027072 A CN115027072 A CN 115027072A CN 202210698430 A CN202210698430 A CN 202210698430A CN 115027072 A CN115027072 A CN 115027072A
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- 239000011490 mineral wool Substances 0.000 title claims abstract description 263
- 239000002131 composite material Substances 0.000 title claims abstract description 62
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 80
- 239000002994 raw material Substances 0.000 claims abstract description 44
- 239000003063 flame retardant Substances 0.000 claims abstract description 37
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005260 corrosion Methods 0.000 claims abstract description 33
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 32
- 230000007797 corrosion Effects 0.000 claims abstract description 32
- 239000004568 cement Substances 0.000 claims abstract description 22
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 17
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims abstract description 16
- 239000011780 sodium chloride Substances 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 7
- 239000010878 waste rock Substances 0.000 claims abstract description 5
- 210000002268 wool Anatomy 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 40
- 238000002360 preparation method Methods 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 25
- 238000004321 preservation Methods 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- 229920000742 Cotton Polymers 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000005303 weighing Methods 0.000 claims description 20
- 238000001035 drying Methods 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 238000002791 soaking Methods 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000005187 foaming Methods 0.000 claims description 10
- 239000005011 phenolic resin Substances 0.000 claims description 10
- 229920001568 phenolic resin Polymers 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 10
- 235000019738 Limestone Nutrition 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000004088 foaming agent Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000010451 perlite Substances 0.000 claims description 5
- 235000019362 perlite Nutrition 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000005871 repellent Substances 0.000 claims description 5
- 230000002940 repellent Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 47
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Abstract
The invention relates to the technical field of composite rock wool processing technology, and provides a high-durability composite rock wool processing technology and a structure thereof, wherein in the process of processing high-durability composite rock wool, waste rock wool and mineral slag which are industrially recycled are used as raw materials, so that the waste can be recycled, the environmental pollution can be reduced, and the environmental benefit can be improved; the rock wool fiber is modified by the dodecyl trimethyl sodium chloride, so that grafting can be performed between the dodecyl trimethyl sodium chloride and the rock wool fiber, an organic silicon flame retardant can be adsorbed on the surface of the rock wool fiber in the grafting process, a rock wool board made of the modified rock wool fiber has flame retardant performance, and the modified rock wool fiber has better compatibility with an organic binder; the rock wool corrosion-resistant outer plate and the cement paste modified by the ethylene-vinyl acetate have extremely strong corrosion resistance, so that the service life of the high-durability composite rock wool can be prolonged to a certain extent.
Description
Technical Field
The invention relates to the technical field of composite rock wool processing technologies, in particular to a high-durability composite rock wool processing technology and a structure thereof.
Background
The rock wool is also called rock wool, which is a kind of mineral wool, and is a fluffy short and fine fiber made of natural rock and minerals, and is an inorganic fiber made of natural rock such as basalt, gabbro, dolomite, iron ore, bauxite, etc. as main raw materials through high-temperature melting and fiberization. The raw materials of natural rock and ore are melted in cupola or other tank furnaces, and then blown and quenched into fibers by 50-atmosphere pressure, or the molten liquid flow is dropped on a multi-stage rotary rotor by a spinning method, and spun into fibers by centrifugal force, namely the rock wool fibers.
Rock wool is widely applied to building engineering as a protective layer of an outer wall body, but the existing rock wool is poor in fireproof performance and corrosion resistance and short in service life, and the processing technology of the rock wool needs to be improved.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a processing technology and a structure of high-durability composite rock wool, and solves the problem that the existing rock wool is poor in fireproof performance and corrosion resistance.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a processing technology of high-durability composite rock wool comprises the following processing steps:
s1, preparing a rock wool heat-preservation inner-layer plate: weighing 70-72 parts of phenolic resin and 5-8 parts of rock wool short fiber waste, mixing and stirring, adding 2-3 parts of silicone oil after uniformly stirring, continuing to stir 2-3 parts of 5-6 parts of foaming agent after uniformly stirring again, finally adding 30-32 parts of curing agent, pouring the system into a preheated mold after stirring for 8-10min, putting the mold into an oven, foaming for 8-10min at 70 ℃, demolding after foaming, standing for curing, and obtaining the rock wool heat-preservation inner-layer plate;
s2, preparing the rock wool flame-retardant sandwich plate: spraying a binder and a hydrophilic agent on the surface of the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride, pressing the modified rock wool fiber sprayed with the binder and the hydrophilic agent into a cotton collector by adopting an air compressor, and preparing rock wool by the steps of cotton laying, cotton collecting, curing and the like to obtain the rock wool flame-retardant sandwich plate;
s3, preparing the rock wool corrosion-resistant outer plate: soaking a rock wool raw material into an ethylene-vinyl acetate solution, then placing the rock wool raw material into a rotary oscillator to oscillate for 1h, then taking out the rock wool raw material, standing the rock wool raw material in air for 1h, placing the rock wool raw material into deionized water to be properly cleaned, filtering the mixture, and drying the filtered rock wool raw material at 105 ℃ to obtain the rock wool corrosion-resistant outer plate;
s4, bonding of composite rock wool: respectively bonding a rock wool heat-preservation inner-layer plate and a rock wool corrosion-resistant outer-layer plate on two surfaces of a rock wool flame-retardant sandwich plate coated with an organic binder to form a rock wool blank, placing a plurality of layers of rock wool blanks in a mold locking machine tool for overlapping and stacking, pressing the rock wool blanks by adopting a cold press, after pressing is finished, placing the mold locking machine tool at 35-45 ℃ for curing for 16-24h, and finally demolding the cured rock wool blanks to obtain the composite rock wool;
s5, smearing of a mortar interface: and (3) coating modified cement slurry on the outer layer of the composite rock wool (namely the outer side wall of the rock wool corrosion-resistant outer layer plate) in the step (S4), and drying to obtain the high-durability composite rock wool.
Furthermore, the preparation method of the recycled rock wool short fibers in the S1 comprises the following steps: collecting industrial waste rock wool, and grinding the collected rock wool into waste powder with the length of 2-3mm by a machine to obtain the rock wool short fiber waste powder.
Further, the stirring speed in S1 is 300-400 r/min.
Further, the specific operations of preheating the mold in S1 are: the mold was placed in an oven at 70 ℃ and heated for 30 min.
Furthermore, the preparation method of the modified rock wool fiber in S2 comprises the following steps:
step a, weighing 1-2 parts of organic silicon flame retardant, pouring the organic silicon flame retardant into 4wt% of dodecyl trimethyl sodium chloride solution, then soaking 18-20 parts of rock wool fiber in the system, uniformly stirring, performing ultrasonic dispersion at the frequency of 1200-1500Hz, then heating, and standing for 2-3h under the constant temperature condition of 130-150 ℃;
and step b, cooling the system after the standing in the step a to normal temperature, then pouring the fibers suspended on the upper layer and the fibers aged at the bottom of the system into a 200-mesh pulp net, washing the pulp net for 3 to 4 times by deionized water, and then drying the pulp net at the temperature of 60 ℃ to obtain the modified rock wool fiber modified by the sodium dodecyl trimethyl chloride.
Further, the curing temperature in S2 is 240-250 ℃.
Furthermore, the preparation method of the rock wool raw material in the S3 comprises the following preparation steps:
and 4, conveying the pressed rock wool body into a curing furnace for curing at the curing temperature of 180 ℃ and 200 ℃, and cooling the rock wool body after curing to obtain the rock wool raw material.
Furthermore, the centrifuge in step 2 adopts a four-roller centrifuge, and the centrifuge speed of the centrifuge is 7000-.
Further, the preparation method of the modified cement slurry in the step S5 comprises the following steps: weighing 100 parts of cement, 200 parts of fine sand, 33 parts of stone powder and 40 parts of water according to the mass ratio, mixing uniformly, adding 1-2 parts of dispersed emulsion powder, 0.2-0.3 part of water-retaining agent and 0.5-0.8 part of polypropylene fiber, mixing uniformly again, adding 8-10 parts of ethylene-vinyl acetate solution, standing for 2 hours at 85 ℃ after ultrasonic dispersion, and stirring uniformly again after standing to obtain the modified cement slurry.
A high-durability composite rock wool structure comprises a heat-preservation inner layer, a flame-retardant interlayer, an anti-corrosion outer layer and a mortar interface.
Advantageous effects
The invention provides a processing technology and a structure of high-durability composite rock wool, and compared with the prior art, the processing technology and the structure have the following beneficial effects:
in the process of processing the high-durability composite rock wool, the waste rock wool and the slag which are industrially recycled are taken as raw materials, so that the waste can be recycled, the environmental pollution can be reduced, and the environmental benefit can be improved; secondly, when the rock wool heat-preservation inner-layer plate is prepared, the rock wool short fiber waste powder is combined with the phenolic foam plate, so that the composite rock wool has an excellent heat-preservation effect, and the production cost of the composite rock wool is reduced to a certain extent; secondly, the rock wool fiber is modified by the dodecyl trimethyl sodium chloride, so that grafting can be performed between the dodecyl trimethyl sodium chloride and the rock wool fiber, an organic silicon flame retardant can be adsorbed on the surface of the rock wool fiber in the grafting process, the rock wool board made of the modified rock wool fiber has flame retardant performance, the modified rock wool fiber has better compatibility with an organic binder, and the subsequent bonding processing of the high-durability composite rock wool is facilitated; finally, the rock wool corrosion-resistant outer plate and the cement paste which are modified by the ethylene-vinyl acetate can have extremely strong corrosion resistance, so that the service life of the high-durability composite rock wool can be prolonged to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart of the processing technique of the high-durability composite rock wool of the invention;
FIG. 2 is a schematic view of the construction of a high durability composite rock wool according to the present invention;
the reference numerals in the drawings denote: 1-heat preservation inner layer; 2-a flame retardant interlayer; 3-a corrosion resistant outer layer; 4-mortar interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The present invention will be further described with reference to the following examples.
Example 1:
the high-durability composite rock wool processing technology comprises the following processing steps:
s1, preparing a rock wool heat-preservation inner-layer plate: weighing 72 parts of phenolic resin and 5 parts of rock wool short fiber waste, mixing and stirring, adding 3 parts of silicone oil after stirring uniformly, continuing stirring 3 parts of foaming agent and 5 parts of curing agent after stirring uniformly again, adding 30 parts of curing agent finally, pouring the system into a preheated mold after stirring for 8min, placing the mold into an oven, foaming for 9min at 70 ℃, demolding after foaming, standing for curing, and obtaining the rock wool heat-preservation inner-layer plate;
s2, preparing the rock wool flame-retardant sandwich plate: spraying a binder and a hydrophilic agent on the surface of the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride, pressing the modified rock wool fiber sprayed with the binder and the hydrophilic agent into a cotton collector by adopting an air compressor, and preparing rock wool by the steps of cotton laying, cotton collecting, curing and the like to obtain the rock wool flame-retardant sandwich plate;
s3, preparing the rock wool corrosion-resistant outer plate: soaking a rock wool raw material into an ethylene-vinyl acetate solution, then placing the rock wool raw material into a rotary oscillator to oscillate for 1h, then taking out the rock wool raw material, standing the rock wool raw material in air for 1h, placing the rock wool raw material into deionized water to be properly cleaned, filtering the mixture, and drying the filtered rock wool raw material at 105 ℃ to obtain the rock wool corrosion-resistant outer plate;
s4, bonding of composite rock wool: respectively bonding a rock wool heat-preservation inner-layer plate and a rock wool corrosion-resistant outer-layer plate on two sides of a rock wool flame-retardant sandwich plate coated with an organic binder on the surface to form a rock wool blank, placing a plurality of layers of rock wool blanks in a mold locking machine tool for overlapping and stacking, pressing the rock wool blanks by adopting a cold press, after pressing is finished, placing the mold locking machine tool at 35 ℃ for curing for 20h, and finally demolding the cured rock wool blanks to obtain the composite rock wool;
s5, smearing of a mortar interface: and (3) coating modified cement slurry on the outer layer of the composite rock wool (namely the outer side wall of the rock wool corrosion-resistant outer layer plate) in the step (S4), and drying to obtain the high-durability composite rock wool.
The preparation method of the recycled rock wool short fibers in the S1 comprises the following steps: collecting industrially waste rock wool, and grinding the collected rock wool into waste powder with the length of 2mm by a machine to obtain the rock wool short fiber waste powder.
The stirring speed in S1 was 400 r/min.
The specific operation of preheating the mold in S1 is as follows: the mold was placed in an oven at 70 ℃ and heated for 30 min.
The preparation method of the modified rock wool fiber in the S2 comprises the following steps:
step a, weighing 2 parts of organic silicon flame retardant, pouring the organic silicon flame retardant into a 4wt% dodecyl trimethyl sodium chloride solution, then soaking 18 parts of rock wool fibers in the system, uniformly stirring, performing ultrasonic dispersion at the frequency of 1300Hz, then heating and standing for 3 hours at the constant temperature of 150 ℃;
and step b, cooling the system after the standing in the step a to normal temperature, then pouring the fibers suspended on the upper layer and the fibers aged at the bottom of the system into a 200-mesh pulp net, washing the pulp net for 4 times by using deionized water, and drying the pulp net at the temperature of 60 ℃ to obtain the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride.
The curing temperature in S2 was 245 ℃.
The preparation method of the rock wool raw material in the S3 comprises the following preparation steps:
and 4, conveying the pressed rock wool body into a curing furnace for curing at the curing temperature of 180 ℃, and cooling the rock wool body after curing to obtain the rock wool raw material.
The centrifugal machine in the step 2 adopts a four-roller centrifugal machine, and the centrifugal speed of the centrifugal machine is increased in a range of 10000r/h in stages.
The preparation method of the modified cement slurry in the S5 comprises the following steps: weighing 100 parts of cement, 200 parts of fine sand, 33 parts of stone powder and 40 parts of water according to the mass ratio, mixing uniformly, adding 2 parts of dispersed latex powder, 0.2 part of water-retaining agent and 0.8 part of polypropylene fiber, mixing uniformly again, adding 9 parts of ethylene-vinyl acetate solution, standing for 2 hours at 85 ℃ after ultrasonic dispersion, and stirring uniformly again after standing to obtain the modified cement slurry.
A high-durability composite rock wool structure comprises a heat-preservation inner layer 1, a flame-retardant interlayer 2, a corrosion-resistant outer layer 3 and a mortar interface 4.
Example 2:
the high-durability composite rock wool processing technology comprises the following processing steps:
s1, preparing a rock wool heat-preservation inner-layer plate: weighing 70 parts of phenolic resin and 7 parts of rock wool short fiber waste, mixing and stirring, adding 2 parts of silicone oil after uniformly stirring, continuously stirring 3 parts of 6 parts of foaming agent after uniformly stirring again, finally adding 30 parts of curing agent, pouring the system into a preheated mold after stirring for 9min, placing the mold into an oven, foaming for 10min at 70 ℃, demolding after foaming, standing for curing, and obtaining the rock wool heat-preservation inner-layer plate;
s2, preparing the rock wool flame-retardant sandwich plate: spraying a binder and a hydrophilic agent on the surface of the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride, pressing the modified rock wool fiber sprayed with the binder and the hydrophilic agent into a cotton collector by adopting an air compressor, and preparing rock wool by the steps of cotton laying, cotton collecting, curing and the like to obtain the rock wool flame-retardant sandwich plate;
s3, preparing the rock wool corrosion-resistant outer plate: soaking a rock wool raw material into an ethylene-vinyl acetate solution, then placing the rock wool raw material into a rotary oscillator to oscillate for 1h, then taking out the rock wool raw material, standing the rock wool raw material in air for 1h, placing the rock wool raw material into deionized water to be properly cleaned, filtering the mixture, and drying the filtered rock wool raw material at 105 ℃ to obtain the rock wool corrosion-resistant outer plate;
s4, bonding of composite rock wool: respectively bonding a rock wool heat-preservation inner-layer plate and a rock wool corrosion-resistant outer-layer plate on two sides of a rock wool flame-retardant sandwich plate coated with an organic binder on the surface to form a rock wool blank, placing a plurality of layers of rock wool blanks in a mold locking machine tool for overlapping and stacking, pressing the rock wool blanks by adopting a cold press, after pressing is finished, placing the mold locking machine tool at 45 ℃ for curing for 16h, and finally demolding the cured rock wool blanks to obtain the composite rock wool;
s5, smearing of a mortar interface: and (3) coating modified cement slurry on the outer layer of the composite rock wool (namely the outer side wall of the rock wool corrosion-resistant outer layer plate) in the step (S4), and drying to obtain the high-durability composite rock wool.
The preparation method of the recovered rock wool short fiber in the S1 comprises the following steps: collecting industrially waste rock wool, and grinding the collected rock wool into waste powder with the length of 3mm by a machine to obtain the rock wool short fiber waste powder.
The stirring speed in S1 was 300 r/min.
The specific operation of preheating the mold in S1 is as follows: the mold was placed in an oven at 70 ℃ and heated for 30 min.
The preparation method of the modified rock wool fiber in the S2 comprises the following steps:
step a, weighing 1 part of organic silicon flame retardant, pouring the organic silicon flame retardant into a 4wt% dodecyl trimethyl sodium chloride solution, then soaking 19 parts of rock wool fibers in the system, uniformly stirring, performing ultrasonic dispersion at the frequency of 1200Hz, then heating and standing for 2 hours at the constant temperature of 130 ℃;
and step b, cooling the system after the standing in the step a to normal temperature, then pouring fibers suspended on the upper layer and fibers aged at the bottom of the system into a 200-mesh pulp net, washing the pulp net for 3 times by using deionized water, and drying the pulp net at the temperature of 60 ℃ to obtain the modified rock wool fiber modified by the sodium dodecyl trimethyl chloride.
The curing temperature in S2 was 240 ℃.
The preparation method of the rock wool raw material in the S3 comprises the following preparation steps:
and 4, conveying the pressed rock wool body into a curing furnace for curing at the curing temperature of 190 ℃, and cooling the rock wool body after curing to obtain the rock wool raw material.
The centrifugal machine in the step 2 adopts a four-roller centrifugal machine, and the centrifugal speed of the centrifugal machine is increased in stages within the 7000r/h range.
The preparation method of the modified cement slurry in the S5 comprises the following steps: weighing 100 parts of cement, 200 parts of fine sand, 33 parts of stone powder and 40 parts of water according to the mass ratio, mixing uniformly, adding 1 part of dispersed latex powder, 0.3 part of water-retaining agent and 0.5 part of polypropylene fiber, mixing uniformly again, adding 10 parts of ethylene-vinyl acetate solution, standing for 2 hours at 85 ℃ after ultrasonic dispersion, and stirring uniformly again after standing to obtain the modified cement slurry.
A high-durability composite rock wool structure comprises a heat-preservation inner layer 1, a flame-retardant interlayer 2, a corrosion-resistant outer layer 3 and a mortar interface 4.
Example 3:
the high-durability composite rock wool processing technology comprises the following processing steps:
s1, preparing a rock wool heat-preservation inner-layer plate: weighing 71 parts of phenolic resin and 8 parts of rock wool short fiber waste, mixing and stirring, adding 3 parts of silicone oil after uniformly stirring, continuously stirring 2 parts of 6 parts of foaming agent after uniformly stirring again, finally adding 31 parts of curing agent, pouring the system into a preheated mold after stirring for 10min, placing the mold into an oven, foaming for 8min at 70 ℃, demolding after foaming, standing for curing, and obtaining the rock wool heat-preservation inner-layer plate;
s2, preparing the rock wool flame-retardant sandwich plate: spraying a binder and a hydrophilic agent on the surface of the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride, pressing the modified rock wool fiber sprayed with the binder and the hydrophilic agent into a cotton collector by adopting an air compressor, and preparing rock wool by the steps of cotton laying, cotton collecting, curing and the like to obtain the rock wool flame-retardant sandwich plate;
s3, preparing the rock wool corrosion-resistant outer plate: soaking a rock wool raw material into an ethylene-vinyl acetate solution, then placing the rock wool raw material into a rotary oscillator to oscillate for 1h, then taking out the rock wool raw material, standing the rock wool raw material in air for 1h, placing the rock wool raw material into deionized water to be properly cleaned, filtering the mixture, and drying the filtered rock wool raw material at 105 ℃ to obtain the rock wool corrosion-resistant outer plate;
s4, bonding of the composite rock wool: respectively bonding a rock wool heat-preservation inner-layer plate and a rock wool corrosion-resistant outer-layer plate on two sides of a rock wool flame-retardant sandwich plate coated with an organic binder on the surface to form a rock wool blank, placing a plurality of layers of rock wool blanks in a mold locking machine tool for overlapping and stacking, pressing the rock wool blanks by adopting a cold press, after pressing is finished, placing the mold locking machine tool at 40 ℃ for curing for 24 hours, and finally demolding the cured rock wool blanks to obtain the composite rock wool;
s5, smearing of a mortar interface: and (3) coating modified cement slurry on the outer layer of the composite rock wool (namely the outer side wall of the rock wool corrosion-resistant outer layer plate) in the step (S4), and drying to obtain the high-durability composite rock wool.
The preparation method of the recovered rock wool short fiber in the S1 comprises the following steps: industrial waste rock wool is collected, and the collected rock wool is ground into waste powder with the length of 3mm through a machine, so that the rock wool short fiber waste powder is obtained.
The stirring speed in S1 was 400 r/min.
The specific operation of preheating the mold in S1 is as follows: the mold was placed in an oven at 70 ℃ and heated for 30 min.
The preparation method of the modified rock wool fiber in the S2 comprises the following steps:
step a, weighing 2 parts of organic silicon flame retardant, pouring the organic silicon flame retardant into a 4wt% dodecyl trimethyl sodium chloride solution, then soaking 20 parts of rock wool fibers in the system, uniformly stirring, performing ultrasonic dispersion at the frequency of 1500Hz, then heating and standing for 3 hours at the constant temperature of 140 ℃;
and step b, cooling the system after the standing in the step a to normal temperature, then pouring the fibers suspended on the upper layer and the fibers aged at the bottom of the system into a 200-mesh pulp net, washing the pulp net for 4 times by using deionized water, and drying the pulp net at the temperature of 60 ℃ to obtain the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride.
The curing temperature in S2 was 250 ℃.
The preparation method of the rock wool raw material in the S3 comprises the following preparation steps:
and 4, conveying the pressed rock wool body into a curing furnace for curing at the curing temperature of 200 ℃, and cooling the rock wool body after curing to obtain the rock wool raw material.
The centrifugal machine in the step 2 adopts a four-roller centrifugal machine, and the centrifugal speed of the centrifugal machine is increased in stages within the range of 12000 r/h.
The preparation method of the modified cement slurry in the S5 comprises the following steps: weighing 100 parts of cement, 200 parts of fine sand, 33 parts of stone powder and 40 parts of water according to the mass ratio, mixing uniformly, adding 1 part of dispersed latex powder, 0.3 part of water-retaining agent and 0.7 part of polypropylene fiber, mixing uniformly again, adding 8 parts of ethylene-vinyl acetate solution, standing for 2 hours at 85 ℃ after ultrasonic dispersion, and stirring uniformly again after standing to obtain the modified cement slurry.
A high-durability composite rock wool structure comprises a heat-preservation inner layer 1, a flame-retardant interlayer 2, a corrosion-resistant outer layer 3 and a mortar interface 4.
Performance testing
The high-durability composite rock wool obtained in examples 1 to 3 and the commercially available ordinary composite rock wool were respectively marked as example 1, example 2, example 3 and comparative example, and the properties thereof were respectively measured.
1. Flame retardancy test
The flame retardant performance of example 1, example 2, example 3 and comparative example were tested separately and the results reported in the following table:
2. corrosion resistance testing
The method comprises the following steps of cutting the example 1, the example 2, the example 3 and the comparative example into blocks with consistent sizes and shapes, soaking the blocks in 0.2mol/L NaOH solution, standing for 24 hours, taking out the blocks after the standing is finished, drying the blocks, and testing the performances of the example 1, the example 2, the example 3 and the comparative example after the soaking in the NaOH solution, wherein the testing results are recorded as the following table:
the data in the table show that the performance of the high-durability composite rock wool prepared in the embodiments 1 to 3 is obviously higher than that of the common composite rock wool in the market, and the high-durability composite rock wool has excellent fireproof, flame-retardant and corrosion-resistant effects, so that the high-durability composite rock wool prepared by the method has excellent market popularization value.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A processing technology of high-durability composite rock wool is characterized by comprising the following processing steps:
s1, preparing a rock wool heat-preservation inner-layer plate: weighing 70-72 parts of phenolic resin and 5-8 parts of rock wool short fiber waste, mixing and stirring, adding 2-3 parts of silicone oil after uniformly stirring, continuing to stir 2-3 parts of 5-6 parts of foaming agent after uniformly stirring again, finally adding 30-32 parts of curing agent, pouring the system into a preheated mold after stirring for 8-10min, putting the mold into an oven, foaming for 8-10min at 70 ℃, demolding after foaming, standing for curing, and obtaining the rock wool heat-preservation inner-layer plate;
s2, preparing the rock wool flame-retardant sandwich plate: spraying a binder and a hydrophilic agent on the surface of the modified rock wool fiber modified by the dodecyl trimethyl sodium chloride, pressing the modified rock wool fiber sprayed with the binder and the hydrophilic agent into a cotton collector by adopting an air compressor, and preparing rock wool by the steps of cotton laying, cotton collecting, curing and the like to obtain the rock wool flame-retardant sandwich plate;
s3, preparing the rock wool corrosion-resistant outer plate: soaking a rock wool raw material into an ethylene-vinyl acetate solution, then placing the rock wool raw material into a rotary oscillator to oscillate for 1h, then taking out the rock wool raw material, standing the rock wool raw material in air for 1h, placing the rock wool raw material into deionized water to be properly cleaned, filtering the mixture, and drying the filtered rock wool raw material at 105 ℃ to obtain the rock wool corrosion-resistant outer plate;
s4, bonding of composite rock wool: respectively bonding a rock wool heat-preservation inner-layer plate and a rock wool corrosion-resistant outer-layer plate on two surfaces of a rock wool flame-retardant sandwich plate coated with an organic binder to form a rock wool blank, placing a plurality of layers of rock wool blanks in a mold locking machine tool for overlapping and stacking, pressing the rock wool blanks by adopting a cold press, after pressing is finished, placing the mold locking machine tool at 35-45 ℃ for curing for 16-24h, and finally demolding the cured rock wool blanks to obtain the composite rock wool;
s5, smearing of a mortar interface: and (4) coating modified cement slurry on the outer layer (namely the outer side wall of the rock wool corrosion-resistant outer layer plate) of the composite rock wool in S4, and drying to obtain the high-durability composite rock wool.
2. The processing technology of the high-durability composite rock wool according to claim 1, wherein the preparation method of the recycled rock wool short fibers in the step S1 is as follows: collecting industrially waste rock wool, and grinding the collected rock wool into waste powder with the length of 2-3mm by a machine to obtain the rock wool short fiber waste powder.
3. The processing technology of composite rock wool with high durability as claimed in claim 1, wherein the stirring speed in the S1 is 300-400 r/min.
4. The processing technology of high-durability composite rock wool according to claim 1, wherein the specific operations of preheating the mold in the step S1 are as follows: the mold was placed in an oven at 70 ℃ and heated for 30 min.
5. The processing technology of the high-durability composite rock wool according to claim 1, wherein the preparation method of the modified rock wool fiber in the S2 comprises the following steps:
step a, weighing 1-2 parts of organic silicon flame retardant, pouring the organic silicon flame retardant into 4wt% of dodecyl trimethyl sodium chloride solution, then soaking 18-20 parts of rock wool fiber in the system, uniformly stirring, performing ultrasonic dispersion at the frequency of 1200-1500Hz, then heating and standing for 2-3h under the constant temperature condition of 130-150 ℃;
and step b, cooling the system after the standing in the step a to normal temperature, then pouring the fibers suspended on the upper layer and the fibers aged at the bottom of the system into a 200-mesh pulp net, washing the pulp net for 3 to 4 times by deionized water, and then drying the pulp net at the temperature of 60 ℃ to obtain the modified rock wool fiber modified by the sodium dodecyl trimethyl chloride.
6. The processing technology of composite rock wool with high durability as claimed in claim 1, wherein the curing temperature in the S2 is 240-250 ℃.
7. The processing technology of the high-durability composite rock wool according to claim 1, wherein the preparation method of the rock wool raw material in the S3 comprises the following preparation steps:
step 1, weighing 35-50 parts of basalt, 25-30 parts of quartz sand, 20-25 parts of slag, 15-20 parts of perlite and 12-15 parts of limestone, crushing and mixing, and pouring into a cupola furnace to melt into magma at the temperature of 1500-;
step 2, throwing the magma obtained in the step 1 into filaments through a centrifugal machine, throwing the filaments into fibers under the action of centrifugal force, and spraying phenolic resin, a water repellent and an adhesive;
step 3, sending the fiber substances obtained in the step 2 into a settling chamber through high-pressure air, collecting and airing, forming a plurality of loose rock wool layers through a pendulum machine, and pressing by a cotton pressing machine;
and 4, conveying the pressed rock wool body into a curing furnace for curing at the curing temperature of 180-200 ℃, and cooling the rock wool body after curing to obtain the rock wool raw material.
8. The processing technology of composite rock wool with high durability as claimed in claim 7, wherein the centrifuge in step 2 is a four-roller centrifuge, and the centrifuge speed of the centrifuge is increased in stages within the range of 7000-12000 r/h.
9. The processing technology of high-durability composite rock wool according to claim 1, wherein the preparation method of the modified cement slurry in the step S5 is as follows: weighing 100 parts of cement, 200 parts of fine sand, 33 parts of stone powder and 40 parts of water according to the mass ratio, mixing uniformly, adding 1-2 parts of dispersed emulsion powder, 0.2-0.3 part of water-retaining agent and 0.5-0.8 part of polypropylene fiber, mixing uniformly again, adding 8-10 parts of ethylene-vinyl acetate solution, standing for 2 hours at 85 ℃ after ultrasonic dispersion, and stirring uniformly again after standing to obtain the modified cement slurry.
10. The structure of high-durability composite rock wool according to any one of claims 1-8, characterized by that said high-durability composite rock wool includes heat-insulating inner layer (1), fire-retardant sandwich layer (2), corrosion-resisting outer layer (3) and mortar interface (4).
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