CN110847512B - Modified asphalt waterproof coiled material for roofing repair and preparation method thereof - Google Patents
Modified asphalt waterproof coiled material for roofing repair and preparation method thereof Download PDFInfo
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- CN110847512B CN110847512B CN201911228047.2A CN201911228047A CN110847512B CN 110847512 B CN110847512 B CN 110847512B CN 201911228047 A CN201911228047 A CN 201911228047A CN 110847512 B CN110847512 B CN 110847512B
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- 238000010438 heat treatment Methods 0.000 claims description 14
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 3
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- 230000000694 effects Effects 0.000 abstract description 3
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- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
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- 239000004793 Polystyrene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B11/046—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a modified asphalt waterproof coiled material for roofing repair and a preparation method thereof. The technical proposal is as follows: the upper surface and the lower surface of the tire base reinforcing layer are respectively provided with an environment-friendly modified asphalt layer and a high heat-resistant non-cured rubber asphalt layer, the thickness gradient areas are respectively arranged on the left side and the right side of the environment-friendly modified asphalt layer, the upper isolation protective layer, the construction lap joint warning line and the isolation edge film are arranged on the upper surface of the environment-friendly modified asphalt layer, and the lower isolation protective layer is arranged on the lower surface of the high heat-resistant non-cured rubber asphalt layer. The beneficial effects are that: the product has the dual functions of the modified asphalt waterproof coiled material and the non-cured rubber asphalt waterproof paint; the emission of atmospheric pollutants such as carbon monoxide, sulfur dioxide, hydrogen sulfide and the like in the production process is reduced by more than 50 percent. Meanwhile, the system viscosity of the modified asphalt is effectively reduced, and the lodging resistance of the coiled material in a high-temperature environment is improved; the full-sticking effect of the hot-melting construction reaches 100%, and the dual functions of water resistance and sealing are realized.
Description
Technical Field
The invention relates to a modified asphalt waterproof coiled material, in particular to a modified asphalt waterproof coiled material for roofing repair and a preparation method thereof.
Background
The traditional modified asphalt waterproof coiled material has been developed for over twenty years in China, and has the advantages of excellent high and low temperature resistance and the like, and the construction method is simple and reliable and can be implemented all the year round and has little influence by construction areas and environmental temperature. Therefore, the waterproof coiled material is actively popularized and applied in China, and at present, the waterproof coiled material occupies more than 70% of the national waterproof coiled material market and more than 50% of the national waterproof material market. However, the production enterprises of the products in China are numerous, and most enterprises have small scale, the quality of the products is uneven due to the lag of management and technical level, and the service life of the exposed used products of the roof is low due to the serious defects of the maintenance system and management of the roof, so that the service life of the exposed used products exceeds 10 years from the viewpoint of the current roof renovation market. With the rapid development of the building market in more than twenty years in China, at least 20 hundred million square meters of existing building roofs are waterproof and concentrated into renovation or repair period at present, if the existing building roofs are not renovated or repaired in time, the functions of waterproof, heat preservation, heat insulation and the like of the building are affected, and the living quality of residents is also affected. However, the special property of the repairing of the roof determines that the existing waterproof product is difficult to meet the current situation of repairing the roof, and the main problem is that the waterproof layer of the roof to be repaired is not clean and tidy like a newly-built roof, but is often damaged and seriously stained, if the waterproof layer is completely dismantled and renovated, a large amount of waste coiled materials are recycled, and the cost of the renovation or repair is greatly increased, so that the most economical method is to only dismantle the seriously damaged part, then repair the dismantled part by using materials such as self-leveling mortar and the like, and then thermally melt and fully glue a layer of waterproof coiled material cover surface special for repairing the roof. Roofing repair is also an emerging area for the waterproofing industry. Despite the remarkable market demand, the development and production of special waterproof coiled materials for roofing repair are seriously delayed due to the fact that the special waterproof coiled materials for roofing repair come in advance, so that the work of developing the special waterproof coiled materials for roofing repair, which is urgently needed in the market, is scheduled. The use environment of the waterproof coiled material determines that the waterproof coiled material special for roofing repair needs to have excellent ageing resistance and wide base layer adaptability. Therefore, developing the special waterproof coiled material products with high cost performance and roof repair which are urgently needed in the market has important economic and practical significance.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides a modified asphalt waterproof coiled material for repairing a roof and a preparation method thereof, which have excellent exposed use performance and wide base layer adaptability (for asphalt-based broken and stained waterproof base layers), can enable the full-sticking effect of hot-melt construction to reach 100% (the conventional asphalt coiled material can generally reach about 75 percent), and realize dual functions of waterproof and sealing.
The invention relates to a modified asphalt waterproof coiled material for roofing repair, which has the technical scheme that: including child base enhancement layer (1), environment-friendly modified asphalt layer (2), high heat-resisting non-cured rubber asphalt layer (3), thickness graded region (4), go up isolation inoxidizing coating (5), construction overlap joint warning line (6), keep apart limit membrane (7), keep apart inoxidizing coating (8) down, the upper and lower surface of child base enhancement layer (1) sets up environment-friendly modified asphalt layer (2) and high heat-resisting non-cured rubber asphalt layer (3) respectively, and thickness graded region (4) set up respectively in the left and right sides of environment-friendly modified asphalt layer (2), go up isolation inoxidizing coating (5), construction overlap joint warning line (6) that set up as required and keep apart limit membrane (7) setting up at the upper surface of environment-friendly modified asphalt layer (2) as required, keep apart inoxidizing coating (8) setting down at the lower surface of high heat-resisting non-cured rubber asphalt layer (3).
Preferably, the lower isolation protective layer (8) is a multi-layer co-extrusion biaxially oriented heat-sealing film.
Preferably, the upper insulation layer (5) is selected from any one of weather-resistant mineral particles, exposed heat-insulating films and polyethylene films.
Preferably, the construction lap joint warning line (6) is arranged when the upper isolation protective layer (5) is a polyethylene film, and the isolation edge film (7) is arranged when the upper isolation protective layer (5) is filled with weather-proof mineral particles or exposed heat insulation films.
Preferably, the environment-friendly modified asphalt layer (2) comprises the following components in parts by mass: 90-115 parts of heavy traffic asphalt; 5-15 parts of SBS thermoplastic rubber; 20-35 parts of rubber powder; 5-15 parts of base oil; 2-5 parts of dissolution-promoting and odor-removing agent; 0.5 to 3 parts of functional auxiliary agent; 40-70 parts of fly ash;
the manufacturing method comprises the following steps:
a) Adding heavy traffic asphalt and base oil into a vertical batching tank, stirring, mixing and heating to 150-160 ℃;
b) Then slowly adding the dissolution-promoting odor removing agent, the rubber powder and the SBS thermoplastic rubber in sequence, continuously heating to 165-175 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding functional auxiliary agent, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding the fly ash, preserving heat and stirring uniformly.
Preferably, the high heat-resistant non-cured rubber asphalt layer (3) comprises the following components in parts by mass: 90-110 parts of heavy traffic asphalt; 5-10 parts of asphalt component regulator; 5-10 parts of SBS thermoplastic rubber; 15-25 parts of rubber operating oil; 25-35 parts of base oil; 2-5 parts of dissolution-promoting and odor-removing agent; 3-8 parts of solid tackifier; 5-10 parts of liquid tackifier; 5-10 parts of petroleum resin; 3-10 parts of functional auxiliary agent; 60-80 parts of fly ash.
The high heat-resistant non-cured rubber asphalt layer (3) is prepared by the following method:
a) Adding heavy traffic asphalt, asphalt component regulator, rubber operating oil and base oil into a vertical mixing tank, stirring, mixing and heating to 150-160 ℃;
b) Then slowly adding the dissolution-promoting odor removing agent, the SBS thermoplastic rubber and the solid tackifier in sequence, continuously heating to 165-175 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding petroleum resin, functional auxiliary agent and liquid tackifier, stirring, melting and mixing uniformly;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding the fly ash, cooling and stirring to 120-130 ℃.
The heavy-traffic asphalt is cycloalkyl low-smoke asphalt produced by an atmospheric and vacuum distillation process, the softening point is above 45 ℃, the penetration is about 70dmm, the ductility at 15 ℃ is more than 1500mm, and the smoke volatilization amount (180 ℃/2 h) is less than or equal to 0.5% (mass percent).
The asphalt component regulator is a crude oil processing byproduct, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the asphaltene content is more than or equal to 45% (mass percent).
The SBS thermoplastic rubber is formed by mixing SBS thermoplastic rubber with a linear molecular structure and a star-shaped molecular structure, wherein the block ratio (S/B) is 30/70-40/60, and the melt mass flow rate is 0.1-0.6 g/10min (230 ℃/10 kg).
The rubber powder is 60-80 mesh rubber powder for a truck tire.
The base oil is paraffin base oil, and the main technical parameters include: the kinematic viscosity (40 ℃) is more than or equal to 35mm 2 The open flash point is more than or equal to 210 ℃, the condensation point is less than or equal to-15 ℃, the volatile matter (180 ℃/2 h) is less than or equal to 2.5% (mass percent), and the aniline point is more than or equal to 100 ℃.
The rubber operation oil is environment-friendly rubber operation oil, and the main technical parameters include: transport and transportThe dynamic viscosity (25 ℃) is less than or equal to 1500mm 2 The open flash point is more than or equal to 215 ℃, the condensation point is less than or equal to-5 ℃, the volatile matter (180 ℃/2 h) is less than or equal to 2.5 percent (mass percent), the content of eighteen Polycyclic Aromatic Hydrocarbons (PAHS) is less than or equal to 10 mg/kg, and the aniline point is 65-95 ℃.
The dissolution-promoting and odor-removing agent adopts biomass oil esterified substance modified vegetable oil, such as palm oil esterified substance modified corn oil, and comprises the following main technical parameters: kinematic viscosity (25 ℃) of 80-120 mm 2 The open flash point is more than or equal to 220 ℃, the condensation point is-10 to-20 ℃, the volatile matter (180 ℃/2 h) is less than or equal to 2.0 percent, the content of eighteen Polycyclic Aromatic Hydrocarbon (PAHS) is less than or equal to 2mg/kg, and the ash (800 ℃/2 h) is less than or equal to 0.2 percent; the asphalt component regulator is a crude oil processing byproduct, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the mass percentage of asphaltene is more than or equal to 45%.
The dissolution-promoting odor-removing agent can accelerate the swelling speed of the modifying agents such as tire rubber powder and the like in the asphalt, shorten the swelling time, improve the production efficiency of the modified asphalt and reduce the energy consumption. And simultaneously, the emission of carbon monoxide, sulfur dioxide, hydrogen sulfide and other atmospheric pollutants in the production process can be reduced through the chemical decomposition, reaction absorption and other actions of the dissolution-promoting odor removing agent, so that the pungent odor in the production process of the modified asphalt coiled material is greatly reduced, and the production amount and the treatment difficulty of production waste gas and waste water are also obviously reduced.
The solid tackifier is linear random rubber, and the main technical parameters are as follows: the combined styrene content (mass fraction) is 24-26%, the polystyrene content (mass fraction) is 17-18%, and the melt mass flow rate is 0.1-0.5 g/10min (230 ℃/10 kg).
The liquid tackifier is low molecular weight liquid rubber, and has the preferable technological parameters of opening flash point not lower than 220 deg.c, pour point not higher than 5 deg.c, average molecular weight (Mn) 1000-1500 and kinematic viscosity (100 deg.c) 300-1000 mm 2 /s。
The petroleum resin is selected from one or two of C5 petroleum resin, C9 petroleum resin and C5/C9 copolymerized petroleum resin, and preferably has a softening point of 100-110 ℃.
The fly ash is a byproduct of a thermal power plant, and the 180-mesh passing rate is more than 100 percent (mass percent).
The functional auxiliary agent is polyolefin with a linear saturated structure, and is formed by compounding a heat-resistant functional auxiliary agent and a viscosity-reducing functional auxiliary agent according to any ratio, wherein main technical parameters of the heat-resistant functional auxiliary agent comprise: the softening point is more than or equal to 130 ℃ and the rotational viscosity (150 ℃) is 4500-5000 Pa.s. The main technical parameters of the viscosity reduction functional auxiliary agent comprise: the softening point is about 115 ℃ and the rotational viscosity (130 ℃) is less than or equal to 2.5 Pa.s.
The functional auxiliary agent has the following technical characteristics: the asphalt has proper relative molecular weight or narrower molecular weight distribution range, and has good compatibility with matrix asphalt and modifier; the modified asphalt has higher softening point or crystallinity, can greatly improve the softening point and heat resistance of the modified asphalt, and does not obviously influence the low-temperature performance of the modified asphalt; the molecular weight distribution range is narrow, the molecular structure is a straight-chain structure, the branched chain is relatively less, and the molecular chain is provided with a certain amount of functional groups such as carbonyl, hydroxyl and the like, so that the modified asphalt has remarkable capabilities of impregnating, penetrating, dispersing and the like of filling powder and the like, and can improve the affinity among the modifier, asphalt and filler. Can penetrate into macromolecular chains such as modifier and asphalt colloid, reduce intermolecular interaction, play a lubricating role, and dissolve in asphalt when the temperature is higher than the softening point of the asphalt, so that the rheological property of the asphalt is improved, namely the high-temperature viscosity of the modified asphalt is obviously reduced; the molecular structure has high saturation, strong oxidation resistance, good weather resistance and the like.
The tyre base reinforcing layer (2) adopts a long fiber polyester tyre base, and the preferable technical parameters are as follows: the gram weight is 200-250 g/square meter, the maximum tensile force is 550-850N/50 mm, the elongation (extensometer method) is 30-45% and the right-angle tearing strength is more than or equal to 250N.
The high heat-resistant non-cured rubber asphalt layer (3) has the following characteristics besides the viscoelastic paste performance and the self-healing property: the method has the advantages that the contradiction between heat resistance and non-curing state is effectively solved, and the heat resistance of non-curing rubber asphalt is improved from 65 ℃ to more than 90 ℃ on the premise of keeping the adhesive paste; the contradiction between heat resistance and viscosity is effectively solved, the viscosity is reduced to be lower than 1500 mPa.s (130 ℃) on the premise of greatly improving the heat resistance, and the coating or spraying adaptability at a lower temperature (130-140 ℃) is improved; the contradiction between the composite slip resistance and the extensibility of the coiled material is overcome, the composite slip resistance of the coiled material is obviously improved on the premise of keeping higher extensibility, the difficult problem of composite construction of a facade part and the coiled material is effectively solved, and the composite construction reliability is improved; the coordination among the adhesive property, stress relaxation, holding viscosity and peeling strength is effectively balanced, and the holding viscosity and the peeling strength among coiled materials are greatly improved on the premise of guaranteeing cohesive failure adhesion of a base surface and smaller stress relaxation.
The upper isolation protective layer (5) is any one of weather-resistant mineral particles, an exposed heat insulation film and a polyethylene film.
The preferred technical parameters of the weather-resistant mineral particles are as follows: fineness is 12-40 meshes, water content is less than or equal to 0.3%, and ash content is less than or equal to 0.5%; the exposed heat insulation film is formed by compounding a weather-proof coating, an aluminum foil, a bonding layer, a reinforced base material and the like, and the preferable technical parameters are as follows: the maximum tensile force is more than or equal to 150N/50mm, the elongation rate (extensometer method) is more than or equal to 50% at the maximum tensile force, the dimensional change rate (90 ℃/24 h) is less than or equal to 1%, the solar emissivity is more than or equal to 80%, and the solar emissivity is less than 20%.
The lower isolation protective layer (8) is a multilayer coextrusion biaxially oriented heat-sealing film, and the preferable technical parameters are as follows: the number of the composite layers is more than or equal to 2, the gram weight is less than or equal to 10 g/square meter, the thickness is 10-12 um, the maximum tensile force is more than or equal to 50N/50mm, and the elongation (extensometer method) at the maximum tensile force is more than or equal to 40%.
Compared with the prior art, the invention has the following beneficial effects:
1. through the effective combination of the multi-layer composite structure of the product and the functional design of the structural layers, the product has the dual functions of the modified asphalt waterproof coiled material and the non-cured rubber asphalt waterproof coating. The technical barrier that the thickness is difficult to control by the on-site hot melt molding of the non-cured rubber asphalt waterproof coating is overcome by the factory prefabrication molding of the non-cured rubber asphalt waterproof coating, and the base layer adaptability of the product, especially the asphalt base broken and stained waterproof base layer adaptability, is improved by utilizing the permanent viscoelastic paste, self-healing property and other properties of the non-cured rubber asphalt waterproof coating;
2. by applying the dissolution-promoting odor removing agent, the swelling time of the modifier can be shortened by more than 30min, the production efficiency of the modified asphalt can be improved by more than 20%, and the energy consumption can be reduced by more than 10%. The emission of carbon monoxide, sulfur dioxide, hydrogen sulfide and other atmospheric pollutants in the production process is reduced by more than 50% through the chemical decomposition, reaction absorption and other actions of the dissolution-promoting odor removing agent, so that the pungent odor in the production process of the modified asphalt coiled material is greatly reduced, and the production amount and the treatment difficulty of production waste gas and waste water are also obviously reduced. Has important practical significance for improving the air quality and reducing the PM2.5 concentration in the air;
3. by applying the functional auxiliary agent, the system viscosity of the modified asphalt is effectively reduced, and the smoothness of the surface of the coiled material are improved. The production efficiency is improved by more than 20 percent, and the production cost is obviously reduced. The lodging resistance of the coiled material in a high-temperature environment is effectively improved;
4. the application of the multilayer coextrusion biaxially oriented heat-sealing film overcomes the technical obstacle that the deformation capacity of the high heat-resistant non-cured rubber asphalt layer is strong and difficult to shape, and the high heat-resistant non-cured rubber asphalt coating is fully contacted with the base layer through the rapid shrinkage of the heat-sealing film during hot-melting construction, so that the full-sticking effect of the hot-melting construction reaches 100% (the conventional asphalt coiled material can only reach about 75 percent generally), and the dual functions of water resistance and sealing are realized.
Drawings
Fig. 1 is a schematic diagram of the structure of an embodiment of the present invention.
Fig. 2 is a schematic structural view of another embodiment of the present invention.
In the figure: the tire base reinforcing layer 1, the environment-friendly modified asphalt layer 2, the high heat-resistant non-cured rubber asphalt layer 3, the thickness gradient region 4, the upper isolation protective layer 5, the construction lap joint warning line 6, the isolation edge film 7 and the lower isolation protective layer 8.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1: the invention relates to a modified asphalt waterproof coiled material for roofing repair, which comprises the following preparation methods:
1. the preparation method of the environment-friendly modified asphalt comprises the following steps:
a) Adding 90 parts of heavy asphalt and 15 parts of base oil into a vertical mixing tank, stirring, mixing and heating to 160 ℃;
b) Then slowly adding 2 parts of dissolution-promoting odor removing agent, 35 parts of rubber powder and 5 parts of SBS thermoplastic rubber in sequence, continuously heating to 165 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 1.5 parts of functional auxiliary agent, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding 70 parts of fly ash, preserving heat and stirring uniformly for later use.
2. The preparation method of the high heat-resistant non-cured rubber asphalt comprises the following steps:
a) 105 parts of heavy traffic asphalt, 10 parts of asphalt component regulator, 25 parts of rubber operation oil and 35 parts of base oil are added into a vertical mixing tank, stirred, mixed and heated to 150 ℃;
b) Then slowly adding 5 parts of dissolution-promoting odor removing agent, 10 parts of SBS thermoplastic rubber and 8 parts of solid tackifier in sequence, continuously heating to 165 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 5 parts of petroleum resin, 8 parts of functional auxiliary agent and 6 parts of liquid tackifier, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding 75 parts of fly ash, cooling and stirring to 130 ℃ for standby.
The heavy traffic asphalt is cycloalkyl low smoke asphalt produced by an atmospheric and vacuum distillation process; the base oil is paraffin base oil; the dissolution promoting and odor removing agent is corn oil modified by palm oil esterified substance; the rubber powder is 70-mesh rubber powder for a truck tire, the SBS thermoplastic rubber is formed by mixing SBS thermoplastic rubber with a linear molecular structure and a star-shaped molecular structure, the block ratio (S/B) is 30/70-40/60, and the melt mass flow rate is 0.1-0.6 g/10min (230 ℃/10 kg); the functional auxiliary agent adopts polyolefin with a linear saturated structure and is prepared by compounding a heat-resistant functional auxiliary agent and a viscosity-reducing functional auxiliary agent in a ratio of 1:1; the rubber operating oil is environment-friendly rubber operating oil; the asphalt component regulator is a crude oil processing byproduct, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the asphaltene content is more than or equal to 45 percent (mass percent); the solid tackifier is a linear random rubber and the liquid tackifier is a low molecular weight liquid rubber; the petroleum resin is C5 petroleum resin.
3. Composite forming method of coiled material
The environment-friendly modified asphalt and the high heat-resistant non-cured rubber asphalt which are prepared in advance are respectively pumped to a coating thickness-fixing device of a forming production line, then an environment-friendly modified asphalt layer with the thickness of 1.0-1.2 mm and a high heat-resistant non-cured rubber asphalt layer with the thickness of 1.5-2.0 mm are respectively coated on the upper side and the lower side of a long fiber polyester tire base reinforcing layer, then an upper isolation protection layer and an isolation edge film which are acted by weather-resistant mineral particles are coated on the outer side (namely the upper surface) of the environment-friendly modified asphalt layer, and a lower isolation protection layer which is acted by a multi-layer coextrusion biaxially oriented heat sealing film is coated on the outer side (namely the lower surface) of the high heat-resistant non-cured rubber asphalt layer, and then the I-shaped waterproof asphalt coiled material for repairing roof with the thickness of more than 4.0mm is prepared through the procedures of traction compaction, cooling shaping, conveying, coiling, metering, cutting, packaging and the like (the product structure is shown in figure 2).
Because the product has no execution standard, the main performance of the product is detected by referring to the related national standard of elastomer modified asphalt waterproof coiled material (GB 18242-2008) and the China building material society standard of special non-cured rubber asphalt waterproof paint, and the related data are shown in Table 1.
Example 2: the invention relates to a modified asphalt waterproof coiled material for roofing repair, which comprises the following preparation methods:
1. preparation method of environment-friendly modified asphalt
a) 115 parts of heavy asphalt and 5 parts of base oil are added into a vertical material mixing tank, stirred, mixed and heated to 150 ℃;
b) Then slowly adding 5 parts of dissolution-promoting odor removing agent, 20 parts of rubber powder and 15 parts of SBS thermoplastic rubber in sequence, continuously heating to 175 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 1 part of functional auxiliary agent, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding 40 parts of fly ash, preserving heat and stirring uniformly for later use.
2. The preparation method of the high heat-resistant non-cured rubber asphalt comprises the following steps:
a) 105 parts of heavy traffic asphalt, 10 parts of asphalt component regulator, 25 parts of rubber operation oil and 35 parts of base oil are added into a vertical mixing tank, stirred, mixed and heated to 150 ℃;
b) Then slowly adding 5 parts of dissolution-promoting odor removing agent, 10 parts of SBS thermoplastic rubber and 8 parts of solid tackifier in sequence, continuously heating to 175 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 5 parts of petroleum resin, 8 parts of functional auxiliary agent and 6 parts of liquid tackifier, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding 75 parts of fly ash, cooling and stirring to 140 ℃ for standby.
The heavy traffic asphalt is cycloalkyl low smoke asphalt produced by an atmospheric and vacuum distillation process; the base oil is paraffin base oil; the dissolution promoting and odor removing agent is corn oil modified by palm oil esterified substance; the rubber powder is 60-mesh rubber powder for a truck tire, the SBS thermoplastic rubber is formed by mixing SBS thermoplastic rubber with a linear molecular structure and a star-shaped molecular structure, the block ratio (S/B) is 30/70-40/60, and the melt mass flow rate is 0.1-0.6 g/10min (230 ℃/10 kg); the functional auxiliary agent adopts polyolefin with a linear saturated structure and is prepared by compounding a heat-resistant functional auxiliary agent and a viscosity-reducing functional auxiliary agent in a ratio of 2:1; the rubber operating oil is environment-friendly rubber operating oil; the asphalt component regulator is a crude oil processing byproduct, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the asphaltene content is more than or equal to 45 percent (mass percent); the solid tackifier is a linear random rubber and the liquid tackifier is a low molecular weight liquid rubber; the petroleum resin is C9 petroleum resin.
3. Composite forming method of coiled material
The environment-friendly modified asphalt and the high heat-resistant non-cured rubber asphalt which are prepared in advance are respectively pumped to a coating thickness-fixing device of a forming production line, then an environment-friendly modified asphalt layer with the thickness of 1.0-1.2 mm and a high heat-resistant non-cured rubber asphalt layer with the thickness of 1.5-2.0 mm are respectively coated on the upper side and the lower side of a long fiber polyester tire base reinforcing layer, then an upper isolation protection layer and an isolation edge film which are acted by weather-resistant mineral particles are coated on the outer side (namely the upper surface) of the environment-friendly modified asphalt layer, and a lower isolation protection layer which is acted by a multi-layer coextrusion biaxially oriented heat sealing film is coated on the outer side (namely the lower surface) of the high heat-resistant non-cured rubber asphalt layer, and then the II-type waterproof asphalt coiled material for repairing roof with the thickness of more than 4.5mm is prepared through the procedures of traction compaction, cooling shaping, conveying, coiling, metering, cutting, packaging and the like (the product structure is shown in figure 2).
Because the product has no execution standard, the main performance of the product is detected by referring to the related national standard of elastomer modified asphalt waterproof coiled material (GB 18242-2008) and the China building material society standard of special non-cured rubber asphalt waterproof paint, and the related data are shown in Table 1.
Example 3: the invention relates to a modified asphalt waterproof coiled material for roofing repair, which comprises the following preparation methods:
1. the preparation method of the environment-friendly modified asphalt comprises the following steps:
a) Adding 90 parts of heavy asphalt and 15 parts of base oil into a vertical mixing tank, stirring, mixing and heating to 160 ℃;
b) Then slowly adding 2 parts of dissolution-promoting odor removing agent, 35 parts of rubber powder and 5 parts of SBS thermoplastic rubber in sequence, continuously heating to 165 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 1.5 parts of functional auxiliary agent, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding 70 parts of fly ash, preserving heat and stirring uniformly for later use.
2. The preparation method of the high heat-resistant non-cured rubber asphalt comprises the following steps:
a) 105 parts of heavy traffic asphalt, 10 parts of asphalt component regulator, 25 parts of rubber operation oil and 35 parts of base oil are added into a vertical mixing tank, stirred, mixed and heated to 150 ℃;
b) Then slowly adding 5 parts of dissolution-promoting odor removing agent, 10 parts of SBS thermoplastic rubber and 8 parts of solid tackifier in sequence, continuously heating to 165 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 5 parts of petroleum resin, 8 parts of functional auxiliary agent and 6 parts of liquid tackifier, stirring, melting and uniformly mixing;
d) And pumping the modified asphalt into a horizontal filling stirring tank, adding 75 parts of fly ash, cooling and stirring to 130 ℃ for standby.
The heavy traffic asphalt is cycloalkyl low smoke asphalt produced by an atmospheric and vacuum distillation process; the base oil is paraffin base oil; the dissolution promoting and odor removing agent is corn oil modified by palm oil esterified substance; the rubber powder is 80-mesh rubber powder for a truck tire, the SBS thermoplastic rubber is formed by mixing SBS thermoplastic rubber with a linear molecular structure and a star-shaped molecular structure, the block ratio (S/B) is 30/70-40/60, and the melt mass flow rate is 0.1-0.6 g/10min (230 ℃/10 kg); the functional auxiliary agent adopts polyolefin with a linear saturated structure and is prepared by compounding a heat-resistant functional auxiliary agent and a viscosity-reducing functional auxiliary agent in a ratio of 1:2; the rubber operating oil is environment-friendly rubber operating oil; the asphalt component regulator is a crude oil processing byproduct, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the asphaltene content is more than or equal to 45 percent (mass percent); the solid tackifier is a linear random rubber and the liquid tackifier is a low molecular weight liquid rubber; the petroleum resin is prepared from C5 petroleum resin and C9 petroleum resin according to a ratio of 1:1.
3. Composite forming method of coiled material
The method comprises the steps of pumping the prepared environment-friendly modified asphalt and the high heat-resistant non-cured rubber asphalt to a coating thickness-fixing device of a forming production line respectively, coating an environment-friendly modified asphalt layer with the thickness of 1.0-1.2 mm and a high heat-resistant non-cured rubber asphalt layer with the thickness of 1.5-2.0 mm on the upper side and the lower side of a long fiber polyester tire base reinforcing layer respectively, coating an upper isolation protective layer and an isolation edge film which are formed by polyethylene films on the outer side (namely the upper surface) of the environment-friendly modified asphalt layer, coating a lower isolation protective layer which is formed by multilayer coextrusion biaxially oriented heat sealing films on the outer side (namely the lower surface) of the high heat-resistant non-cured rubber asphalt layer, and carrying out traction compaction, cooling shaping, scribing (namely 'on-line' to carry out construction lap warning line scribing), conveying, coiling, metering, cutting, packaging and other procedures to prepare the I-shaped modified asphalt waterproof coiled material for repairing the roof with the thickness of more than 4.0mm (the product structure is shown in figure 1).
Because the product has no execution standard, the main performance of the product is detected by referring to the related national standard of elastomer modified asphalt waterproof coiled material (GB 18242-2008) and the China building material society standard of special non-cured rubber asphalt waterproof paint, and the related data are shown in Table 1.
TABLE 1 Main Properties of the product
The results show that the product has excellent physical properties, and the properties completely meet or are obviously higher than the main detection properties of the elastomer modified asphalt waterproof coiled material (GB 18242-2008) and the special non-cured rubber asphalt waterproof paint of China building Material Association standards.
The above description is only a few preferred embodiments of the present invention, and any person skilled in the art may make modifications to the above described embodiments or make modifications to the same. Therefore, any simple modification or equivalent made according to the technical solution of the present invention falls within the scope of the protection claimed by the present invention.
Claims (1)
1. A modified asphalt waterproof coiled material for repairing a roof is characterized in that: the environment-friendly modified asphalt layer (3) is arranged on the upper surface and the lower surface of the environment-friendly modified asphalt layer (2) and the high heat-resistant non-cured rubber asphalt layer (3) respectively, the thickness gradient region (4) is arranged on the left side and the right side of the environment-friendly modified asphalt layer (2) respectively, the upper isolation protection layer (5), the construction lap warning line (6) which is arranged according to the requirement and the isolation edge film (7) which is arranged according to the requirement are arranged on the upper surface of the environment-friendly modified asphalt layer (2), and the lower isolation protection layer (8) is arranged on the lower surface of the high heat-resistant non-cured rubber asphalt layer (3);
the modified asphalt waterproof coiled material for repairing the roof comprises the following preparation methods:
the preparation method of the environment-friendly modified asphalt comprises the following steps:
a) 115 parts of heavy asphalt and 5 parts of base oil are added into a vertical material mixing tank, stirred, mixed and heated to 150 ℃;
b) Then slowly adding 5 parts of dissolution-promoting odor removing agent, 20 parts of rubber powder and 15 parts of SBS thermoplastic rubber in sequence, continuously heating to 175 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 1 part of functional auxiliary agent, stirring, melting and uniformly mixing;
d) Pumping the modified asphalt into a horizontal filling stirring tank, adding 40 parts of fly ash, preserving heat and stirring uniformly for later use;
the preparation method of the high heat-resistant non-cured rubber asphalt comprises the following steps:
a) 105 parts of heavy traffic asphalt, 10 parts of asphalt component regulator, 25 parts of rubber operation oil and 35 parts of base oil are added into a vertical mixing tank, stirred, mixed and heated to 150 ℃;
b) Then slowly adding 5 parts of dissolution-promoting odor removing agent, 10 parts of SBS thermoplastic rubber and 8 parts of solid tackifier in sequence, continuously heating to 175 ℃, and circularly grinding for 2-3 times by a colloid mill until the materials are melted and mixed uniformly;
c) Adding 5 parts of petroleum resin, 8 parts of functional auxiliary agent and 6 parts of liquid tackifier, stirring, melting and uniformly mixing;
d) Pumping the modified asphalt into a horizontal filling stirring tank, adding 75 parts of fly ash, cooling and stirring to 140 ℃ for later use;
wherein the heavy traffic asphalt is cycloalkyl low smoke asphalt produced by an atmospheric and vacuum distillation process; the base oil is paraffin base oil; the dissolution promoting and odor removing agent is corn oil modified by palm oil esterified substance; the rubber powder is 60-mesh rubber powder for the truck tire, the SBS thermoplastic rubber is formed by mixing SBS thermoplastic rubber with a linear molecular structure and a star-shaped molecular structure, the block ratio is 30/70-40/60, and the mass flow rate of a melt body of 230 ℃/10kg is 0.1-0.6 g/10min; the functional auxiliary agent adopts polyolefin with a linear saturated structure and is prepared by compounding a heat-resistant functional auxiliary agent and a viscosity-reducing functional auxiliary agent in a ratio of 2:1; the rubber operating oil is environment-friendly rubber operating oil; the asphalt component regulator is a crude oil processing byproduct, and the main technical parameters comprise: the softening point is more than or equal to 115 ℃, and the mass percentage of asphaltene is more than or equal to 45%; the solid tackifier is a linear random rubber and the liquid tackifier is a low molecular weight liquid rubber; the petroleum resin is C9 petroleum resin;
the composite forming method of the coiled material comprises the following steps:
the method comprises the steps of pumping prepared environment-friendly modified asphalt and high heat-resistant non-cured rubber asphalt to a coating thickness-fixing device of a forming production line respectively, coating an environment-friendly modified asphalt layer with the thickness of 1.0-1.2 mm and a high heat-resistant non-cured rubber asphalt layer with the thickness of 1.5-2.0 mm on the upper side and the lower side of a long fiber polyester tire base reinforcing layer respectively, coating an upper isolation protective layer and an isolation edge film which are filled with weather-resistant mineral particles on the outer side of the environment-friendly modified asphalt layer, coating a lower isolation protective layer filled with a multi-layer co-extrusion biaxially oriented heat-sealing film on the outer side of the high heat-resistant non-cured rubber asphalt layer, and carrying out traction compaction, cooling shaping, conveying, coiling, metering, cutting and packaging procedures to prepare the modified asphalt waterproof coiled material for repairing type II roof with the thickness of more than 4.5 mm.
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| CN111809407A (en) * | 2020-07-29 | 2020-10-23 | 河北宝源工程橡塑有限公司 | Novel modified asphalt waterproof coiled material and preparation method thereof |
| CN112143388A (en) * | 2020-09-25 | 2020-12-29 | 福建新华美防水材料有限公司 | Composite waterproof coating film prefabricated coiled material and preparation method thereof |
| CN115011010A (en) * | 2021-03-05 | 2022-09-06 | 杨太龙 | Adhesive tape type rubber waterproof sheet material manufacturing method and product thereof |
| CN115260779A (en) * | 2022-08-17 | 2022-11-01 | 江西玉龙防水科技有限公司 | High-performance high-yield modified asphalt waterproof coiled material and preparation method thereof |
| CN116176063A (en) * | 2022-12-30 | 2023-05-30 | 杨际梅 | Heat-insulating modified asphalt non-curing waterproof coiled material, preparation method thereof and production line |
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