CN115139625A - Weather-resistant exposed modified asphalt waterproof coiled material and preparation method thereof - Google Patents
Weather-resistant exposed modified asphalt waterproof coiled material and preparation method thereof Download PDFInfo
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- CN115139625A CN115139625A CN202210836112.5A CN202210836112A CN115139625A CN 115139625 A CN115139625 A CN 115139625A CN 202210836112 A CN202210836112 A CN 202210836112A CN 115139625 A CN115139625 A CN 115139625A
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- modified asphalt
- layer
- weather
- coiled material
- waterproof coiled
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- 239000010426 asphalt Substances 0.000 title claims abstract description 115
- 239000000463 material Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920000642 polymer Polymers 0.000 claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 33
- -1 polyethylene Polymers 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 24
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
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- 239000003607 modifier Substances 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 25
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- 238000007596 consolidation process Methods 0.000 claims description 21
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- 238000001035 drying Methods 0.000 claims description 19
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- 239000000945 filler Substances 0.000 claims description 16
- 239000003208 petroleum Substances 0.000 claims description 15
- 238000007334 copolymerization reaction Methods 0.000 claims description 14
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- 238000007664 blowing Methods 0.000 claims description 9
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- 239000003365 glass fiber Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 5
- 238000013329 compounding Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
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- 230000035515 penetration Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 5
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- 150000003505 terpenes Chemical class 0.000 claims description 5
- 235000007586 terpenes Nutrition 0.000 claims description 5
- 238000004078 waterproofing Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
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- 238000002791 soaking Methods 0.000 claims description 2
- 241000276489 Merlangius merlangus Species 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract 7
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- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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Images
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B27/08—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 of synthetic resin
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- B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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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
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- B32B2260/04—Impregnation, embedding, or binder material
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- B32B2262/101—Glass fibres
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- B32B2307/712—Weather resistant
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Hydrology & Water Resources (AREA)
- General Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
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Abstract
The invention provides a weather-resistant exposed modified asphalt waterproof coiled material and a preparation method thereof, and relates to the technical field of waterproof materials. The weather-resistant exposed modified asphalt waterproof coiled material is prepared by two steps of preparing a modified asphalt mixture and preparing a waterproof coiled material, wherein the weather-resistant exposed modified asphalt waterproof coiled material sequentially comprises a high-molecular consolidated spray coating layer, a basalt particle layer, a polymer modified asphalt layer, a carcass reinforcing layer, a polymer modified asphalt layer and a polyethylene film anti-sticking layer from top to bottom. The weather-resistant exposed modified asphalt waterproof coiled material can improve the functional stability of a waterproof layer and prolong the service life of the waterproof layer of a building roof.
Description
Technical Field
The invention relates to the technical field of waterproof materials, in particular to a weather-resistant exposed modified asphalt waterproof coiled material and a preparation method thereof.
Background
The waterproof function of a building is one of the main use function requirements of people, waterproof engineering determines the waterproof function of the building, and the quality of the waterproof engineering depends on the performance of a waterproof material to a certain extent. In the field of building waterproofing, the modified asphalt waterproof coiled material is one of important waterproof materials, is mainly used in waterproof projects such as building underground, roof, tunnel, highway bridge, refuse landfill and the like, can resist the erosion damage of external rainwater, underground water and water vapor to the building, and protects the use space inside the building from the influence of water.
At present, in the building roof waterproofing project, the modified asphalt waterproofing membrane with the mineral aggregate on the upper surface is usually adopted for waterproofing treatment, wherein the mineral aggregate is mainly used for physically protecting the waterproof layer (namely the lower modified asphalt layer), and preventing the waterproof layer from being exposed in the natural environment for a long time to generate aging phenomena such as cracking, swelling and the like, so as to prolong the service life of the waterproof layer. However, the following problems generally exist in the current waterproof coiled material: (1) Mineral aggregate is randomly dispersed and embedded in the upper surface modified asphalt coating, and the mineral aggregate is very easy to fall off in the processes of transportation, construction and use, so that the protection effect on the waterproof layer is influenced, the aging of the waterproof layer is accelerated, and the leakage of the building roof is caused; (2) Gaps among mineral particles are large, the surface is rough and uneven, rainwater, snow water or dew in the natural environment can enter the modified asphalt layer from the gaps among the mineral particles, and the aging of the waterproof layer is accelerated; (3) Under the external force action of wind, mineral particles are easy to fall off, and the mineral particles falling off after rain are accumulated at the rain falling port of the roof to form blockage and unsmooth drainage, and the aging of the waterproof layer is accelerated to cause the leakage of the building roof.
Disclosure of Invention
In order to solve the problems, the invention provides a weather-resistant exposed modified asphalt waterproof coiled material and a preparation method thereof, which are used for improving the functional stability of a waterproof layer and prolonging the service life of the waterproof layer of a building roof. The weather-proof exposed modified asphalt waterproof coiled material comprises a six-layer structure, wherein a high-molecular consolidation spraying layer, a basalt particle layer, a polymer modified asphalt layer, a carcass reinforcing layer, a polymer modified asphalt layer and a polyethylene film anti-sticking layer are sequentially arranged from top to bottom;
the polymer consolidation spray coating comprises the following raw materials in percentage by weight:
30-50% of organosilicon copolymerization modified styrene-acrylic emulsion, 50-60% of water and 1.5-2.5% of film-forming additive, wherein the sum of the weight percentages of the raw materials is 100%, and the film-forming additive is dodecyl alcohol ester.
The basalt has the following grain composition:
20-30% of 12 meshes, 15-25% of 14 meshes, 15-20% of 18 meshes, 10-15% of 24 meshes and 10-15% of 30 meshes, wherein the sum of the weight percentages of the raw materials is 100%.
The polymer modified asphalt layer comprises the following raw materials in percentage by weight:
42.0 to 47.0 percent of 90# asphalt, 4.5 to 6.5 percent of SBS modifier, 3.0 to 5.0 percent of APP modifier, 4.0 to 8.0 percent of petroleum resin, 5.0 to 10.0 percent of naphthenic oil, 10.0 to 15.0 percent of tire rubber powder and 15.0 to 25.0 percent of filler, wherein the sum of the weight percentages of the above raw materials is 100 percent.
The carcass reinforcing layer is one of 250g of glass fiber reinforced polyester tire, 250g of polyester tire and 0.8-1.0 mm of high-density polyethylene sheet;
the anti-sticking layer of the polyethylene film is 20g/m 2 A polyethylene film.
Furthermore, the organosilicon copolymerization modified polystyrene-acrylic emulsion is prepared by copolymerization of an organosilicon monomer and an acrylate emulsion, wherein the solid content is 45-49%, the pH value is 7-9, and the Tg value is 25-29 ℃.
Further, the 90# asphalt is heavy traffic road asphalt with the wax content less than or equal to 2.2 percent.
Further, the SBS modifier is formed by compounding star SBS4303 and linear SBS1401 in a weight ratio of 1.
Further, the tire rubber powder is 60-mesh ground tire rubber powder.
Further, the petroleum resin is a terpene resin, and can increase the adhesion of the basalt particle layer and the polymer modified asphalt layer.
Furthermore, the filler is talcum powder or heavy calcium, and the fineness of the filler is 200-400 meshes.
The invention also provides a preparation method of the weather-resistant exposed modified asphalt waterproof coiled material, which comprises the following steps:
(1) Preparing a modified asphalt mixture: adding 90# asphalt, softening oil and naphthenic oil into a reaction kettle, dehydrating for 30min at 130 ℃ under a stirring state, sequentially adding SBS modifier, APP modifier and petroleum resin, stirring and heating to 180 ℃, circulating for 60min through a colloid mill, adding tire rubber powder, keeping the temperature and stirring for 30min at 185 ℃, stopping stirring and standing for 10min, finally adding filler and stirring for 40min, and obtaining a modified asphalt mixture after the detection is qualified;
(2) Preparing the weather-resistant exposed modified asphalt waterproof coiled material: and (3) unfolding and drying the matrix, dipping the matrix in the modified asphalt mixture after presoaking, laminating or sand-coating, cooling by water, spraying a polymer consolidation spraying layer with the thickness of 0.05-0.1 mm on the basalt particle layer, blowing, drying to assist in forming a film, and cooling and consolidating to obtain the weather-resistant exposed modified asphalt waterproof coiled material.
Further, the technical indexes of the polymer modified asphalt layer mixture meet the following requirements: low temperature of-25 ℃, heat resistance of 105 ℃, softening point of 120-125 ℃, penetration (23-28) of 1/10mm and oil permeability of less than or equal to 1 sheet.
Furthermore, the temperature of the air blast drying is 120-140 ℃, and the time of the air blast drying is 60-90 s.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) The basalt particles with specific grading and the polymer modified asphalt mixture have excellent adhesiveness, and the basalt particle layer can be uniformly embedded into the polymer modified asphalt layer, so that the polymer modified asphalt layer is firmer and more stable;
(2) According to the invention, the high-molecular solidifying material is sprayed on the upper surface of the waterproof coiled material grading basalt particle layer, so that the aging resistance of the product is improved, gaps on the surface of the basalt particle layer can be filled, the basalt particles are mutually bonded and solidified on the surface of the waterproof coiled material, water is effectively prevented from entering a polymer modified asphalt layer below through the gaps between the basalt particle layers, the waterproof coiled material is prevented from being corroded and aged by long-term immersion, and the service life of the waterproof coiled material is prolonged;
(3) The polymer consolidation spraying layer can be rapidly formed into a film through the processes of blast drying and cooling, and the graded basalt particles are uniformly and compactly embedded in the polymer modified asphalt layer by matching with a plurality of driving rollers of a subsequent forming production line, and the graded basalt particle layer has good relative smoothness and mechanical stability, so that the problem of falling-off of the basalt particles caused by extrusion, vibration and friction in the processes of transportation, construction and use of the waterproof coiled material is greatly reduced;
(4) The main component of the high-molecular consolidation spraying layer is the organic silicon copolymerization modified polyphenyl propyl emulsion, the high-molecular consolidation spraying layer is firm and flat after film forming, excellent physical protection can be provided for the waterproof roll, the waterproof roll has excellent weather resistance, water resistance and wear resistance and good hydrophobicity, the service life of the waterproof roll is greatly prolonged, and the reliability of a building roof system is improved.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a product structure diagram of a weather-resistant exposed modified asphalt waterproof roll material of the present invention;
FIG. 2 is a flow chart of a preparation process of the weather-resistant exposed modified asphalt waterproof roll material.
Description of reference numerals: 1. solidifying and spraying a high polymer layer; 2. a layer of basalt particles; 3. a polymer-modified asphalt layer; 4. a carcass reinforcement layer; 5. a polymer-modified asphalt layer; 6. a polyethylene film anti-sticking layer.
Detailed Description
The invention provides a weather-proof exposed modified asphalt waterproof coiled material and the weather-proof exposed modified asphalt waterproof coiled material comprises a six-layer structure, wherein a high-molecular consolidation spraying layer, a basalt particle layer, a polymer modified asphalt layer, a carcass reinforcing layer, a polymer modified asphalt layer and a polyethylene film anti-sticking layer are sequentially arranged from top to bottom;
the polymer consolidation spraying layer comprises the following raw materials in percentage by weight:
30-50% of organic silicon copolymerization modified styrene-acrylic emulsion, 50-60% of water and 1.5-2.5% of film-forming additive, wherein the sum of the weight percentages of the raw materials is 100%, and the film-forming additive is dodecyl alcohol ester.
The basalt particle composition is as follows:
20-30% of 12 meshes, 15-25% of 14 meshes, 15-20% of 18 meshes, 10-15% of 24 meshes and 10-15% of 30 meshes, wherein the sum of the weight percentages of the raw materials is 100%.
The polymer modified asphalt layer comprises the following raw materials in percentage by weight:
42.0 to 47.0 percent of 90# asphalt, 4.5 to 6.5 percent of SBS modifier, 3.0 to 5.0 percent of APP modifier, 4.0 to 8.0 percent of petroleum resin, 5.0 to 10.0 percent of naphthenic oil, 10.0 to 15.0 percent of tire rubber powder and 15.0 to 25.0 percent of filler, wherein the sum of the weight percentages of the above raw materials is 100 percent.
The carcass reinforcing layer is one of 250g of glass fiber reinforced polyester tire, 250g of polyester tire and 0.8-1.0 mm of high-density polyethylene sheet;
the anti-sticking layer of the polyethylene film is 20g/m 2 A polyethylene film.
In one embodiment, the organosilicon copolymerization modified polystyrene-acrylic emulsion is prepared by copolymerization of an organosilicon monomer and an acrylate emulsion, and has a solid content of 45-49%, a pH value of 7-9 and a Tg value of 25-29 ℃.
In one embodiment, the 90# asphalt is heavy traffic road asphalt with wax content less than or equal to 2.2%.
In one embodiment, the SBS modifier is formed by compounding star SBS4303 and linear SBS1401 in a weight ratio of 1, and the APP modifier is random polypropylene resin with a softening point of 100-120 ℃.
In one embodiment, the tire rubber powder is 60 mesh ground tire rubber powder.
In one embodiment, the petroleum resin is a terpene resin capable of increasing the adhesion of the layer of basalt particles and the layer of polymer modified asphalt.
In one embodiment, the filler is talcum powder or heavy calcium carbonate with the fineness of 200-400 meshes.
The invention also provides a preparation method of the weather-resistant exposed modified asphalt waterproof coiled material, which comprises the following steps:
(1) Preparing a modified asphalt mixture: adding 90# asphalt, softening oil and naphthenic oil into a reaction kettle, dehydrating for 30min at 130 ℃ under a stirring state, sequentially adding SBS modifier, APP modifier and petroleum resin, stirring and heating to 180 ℃, circulating for 60min through a colloid mill, adding tire rubber powder, keeping the temperature and stirring for 30min at 185 ℃, stopping stirring and standing for 10min, finally adding filler and stirring for 40min, and obtaining a modified asphalt mixture after the detection is qualified;
(2) Preparing the weather-resistant exposed modified asphalt waterproof coiled material: and (2) unfolding and drying the matrix, dipping the matrix into the modified asphalt mixture after pre-soaking, coating a film or covering sand, cooling by water, spraying a polymer consolidation spraying layer with the thickness of 0.05-0.1 mm on the basalt particle layer, blowing for drying to assist film formation, and cooling and consolidating to obtain the weather-resistant exposed modified asphalt waterproof coiled material.
In one embodiment, the polymer modified asphalt layer mix specification satisfies: qualified at the low temperature of minus 25 ℃, qualified at the heat resistance of 105 ℃, having a softening point of 120 to 125 ℃, a penetration (23 to 28) of 1/10mm and an oil permeability of less than or equal to 1 sheet.
In one embodiment, the temperature of the air blowing drying is 120-140 ℃, and the time of the air blowing drying is 60-90 s.
The technical solution provided by the present invention is further illustrated by the following examples.
Example 1
A weather-proof exposed modified asphalt waterproof coiled material sequentially comprises a polymer consolidation spraying layer, a basalt particle layer, a polymer modified asphalt layer, a carcass reinforcing layer, a polymer modified asphalt layer and a polyethylene film anti-sticking layer from top to bottom;
wherein the polymer consolidation spraying layer consists of the following raw materials in percentage by weight:
45.0 percent of organosilicon copolymerization modified styrene-acrylic emulsion, 52.5 percent of water and 2.5 percent of dodecyl alcohol ester;
the organosilicon copolymerization modified polystyrene-acrylic emulsion is prepared by copolymerizing an organosilicon monomer and an acrylate emulsion, has the solid content of 48 percent, the pH value of 8 and the Tg value of 27 ℃, and is purchased from Jiangsushendan and the model of SD-5281 nano silicone-acrylic emulsion;
the grading of basalt particles in the basalt particle layer is as follows: 28.0 percent of 12 meshes, 22.0 percent of 14 meshes, 20.0 percent of 18 meshes, 15.0 percent of 24 meshes and 15.0 percent of 30 meshes;
the polymer modified asphalt layer is composed of the following raw materials in percentage by weight: 45.0% of 90# asphalt, 5.0% of SBS modifier, 3.5% of APP modifier, 5.5% of petroleum resin, 7.0% of naphthenic oil, 13.0% of tire rubber powder and 21.0% of filler;
the carcass reinforcing layer is made of 250g of glass fiber reinforced polyester tire, and is purchased from non-woven fabrics built in Anguo city, and the model is 250g of glass fiber reinforced polyester tire; 20g/m for polyethylene film anti-sticking layer 2 Polyethylene film purchased from Hebei Xinwang paper-plastic; the No. 90 asphalt is heavy traffic road asphalt with the wax content of 1.8 percent; the SBS modifier is prepared by compounding star SBS4303 (Chinese petrifaction 4303) and linear SBS1401 (Chinese petrifaction 1401) according to the weight ratio of 1; the APP modifier is random polypropylene resin with a softening point of 110 ℃, purchased from Qingdao Jisi and has the model of A35 modified APAO; the tire rubber powder is 60-mesh ground tire rubber powder; the petroleum resin is terpene resin; the filler is 400-mesh talcum powder.
The preparation method of the weather-resistant exposed modified asphalt waterproof coiled material comprises the following steps:
(1) Preparing a modified asphalt mixture: adding 90# asphalt, softening oil and naphthenic oil into a reaction kettle, dehydrating for 30min at 130 ℃ under a stirring state, sequentially adding SBS modifier, APP modifier and petroleum resin, stirring and heating to 180 ℃, circulating for 60min through a colloid mill, adding tire rubber powder, keeping the temperature and stirring for 30min at 185 ℃, stopping stirring and standing for 10min, finally adding filler and stirring for 40min, and obtaining a modified asphalt mixture after the detection is qualified;
(2) Preparing the weather-resistant exposed modified asphalt waterproof coiled material: the matrix is unfolded and dried, the matrix is soaked in advance and then dipped and coated with the modified asphalt mixture, the matrix is coated with a film or coated with sand and then cooled by water, a polymer consolidation spraying layer with the thickness of 0.05mm is sprayed on the basalt particle layer, and after air blowing and drying are carried out to assist film formation, cooling and consolidation are carried out to obtain the weather-resistant exposed modified asphalt waterproof coiled material;
the technical indexes of the mixture of the polymer modified asphalt layer meet the requirements of low temperature-25 ℃ qualification, heat resistance 105 ℃ qualification, softening point 123 ℃, penetration (25) 1/10mm and oil permeability 1; the thickness of the polymer consolidation spraying layer is 0.05mm; the air blowing drying temperature is 130 ℃, and the air blowing drying time is 90s.
Example 2
The weather-proof exposed modified asphalt waterproof coiled material sequentially comprises a polymer consolidation spraying layer, a basalt particle layer, a polymer modified asphalt layer, a carcass reinforcing layer, a polymer modified asphalt layer and a polyethylene film anti-sticking layer from top to bottom;
wherein the polymer consolidation spraying layer consists of the following raw materials in percentage by weight:
50.0 percent of organosilicon copolymerization modified styrene-acrylic emulsion, 47.5 percent of water and 2.5 percent of film-forming additive (supplementing the concrete type of film-forming agent);
the organosilicon copolymerization modified polystyrene-acrylic emulsion is prepared by copolymerizing an organosilicon monomer and an acrylate emulsion, has the solid content of 49 percent, the pH value of 8 and the Tg value of 29 ℃, and is purchased from Jiangsushendan and the model of SD-5281 nano silicone-acrylic emulsion;
the grading of basalt particles in the basalt particle layer is as follows: 30.0 percent of 12 meshes, 20.0 percent of 14 meshes, 20.0 percent of 18 meshes, 15.0 percent of 24 meshes and 15.0 percent of 30 meshes;
the polymer modified asphalt layer is composed of the following raw materials in percentage by weight: 46.0% of 90# asphalt, 5.5% of SBS modifier, 4.0% of APP modifier, 8.0% of petroleum resin, 8.0% of naphthenic oil, 12.0% of tire rubber powder and 16.5% of filler;
the carcass reinforcing layer is made of 250g of glass fiber reinforced polyester tire, and is purchased from non-woven fabrics built in Anguo city, and the model is 250g of glass fiber reinforced polyester tire; 20g/m for polyethylene film anti-sticking layer 2 Polyethylene film purchased from Hebei Xinwang paper-plastic; the No. 90 asphalt is heavy traffic road asphalt with the wax content of 1.8 percent; the SBS modifier is prepared by compounding star SBS4303 (Chinese petrifaction 4303) and linear SBS1401 (Chinese petrifaction 1401) according to the weight ratio of 1; the APP modifier is random polypropylene resin with a softening point of 120 ℃, purchased from Qingdao Jisi and is A35 modified APAO; the tire rubber powder is 60-mesh ground tire rubber powder; the petroleum resin is terpene resin; the filler is 400 meshes of talcum powder.
The preparation method of the weather-resistant exposed modified asphalt waterproof coiled material comprises the following steps:
(1) Preparing a modified asphalt mixture: adding 90# asphalt, softening oil and naphthenic oil into a reaction kettle, dehydrating for 30min at 130 ℃ under a stirring state, sequentially adding SBS modifier, APP modifier and petroleum resin, stirring and heating to 180 ℃, circulating for 60min through a colloid mill, adding tire rubber powder, keeping the temperature and stirring for 30min at 185 ℃, stopping stirring and standing for 10min, finally adding filler and stirring for 40min, and obtaining a modified asphalt mixture after the detection is qualified;
(2) Preparing the weather-resistant exposed modified asphalt waterproof coiled material: the matrix is unfolded and dried, the matrix is soaked in advance and then dipped and coated with the modified asphalt mixture, the matrix is coated with a film or coated with sand and then cooled by water, a polymer consolidation spraying layer with the thickness of 0.05mm is sprayed on the basalt particle layer, and after air blowing and drying are carried out to assist film formation, cooling and consolidation are carried out to obtain the weather-resistant exposed modified asphalt waterproof coiled material;
the technical indexes of the mixture of the polymer modified asphalt layer meet the requirements of low temperature of 25 ℃ below zero, heat resistance of 105 ℃, softening point of 125 ℃, penetration (23) of 1/10mm and oil permeability of 1 sheet; the temperature of the air blast drying is 140 ℃, and the time of the air blast drying is 90s.
Test example 1
The properties of the weather-resistant exposed modified asphalt waterproof rolls prepared in examples 1 to 2 were measured by referring to the method described in GB18242-2008 "elastomer modified asphalt waterproof roll", and a rabdosia SBS i PY M PE 4.010 waterproof roll was used as a comparison, and the results were as follows:
as can be seen from Table 1, the mineral grain adhesion performance of the modified asphalt waterproof coiled material prepared in examples 1-2 is far better than that of the conventional waterproof coiled material with mineral grain materials, and the thermal aging resistance and the water resistance index are also better than those of the conventional product. Therefore, the invention obviously improves the aging resistance of the waterproof roll material, has good weather resistance and prolongs the waterproof service life of the building.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A weather-resistant exposed modified asphalt waterproof coiled material is characterized by sequentially comprising a high-molecular consolidation spraying layer, a basalt particle layer, a polymer modified asphalt layer, a matrix reinforcing layer, a polymer modified asphalt layer and a polyethylene film anti-sticking layer from top to bottom;
the polymer consolidation spray coating comprises the following raw materials in percentage by weight:
30-50% of organosilicon copolymerization modified styrene-acrylic emulsion, 50-60% of water and 1.5-2.5% of film-forming additive, wherein the sum of the weight percentages of the raw materials is 100%, and the film-forming additive is dodecyl alcohol ester;
the basalt has the following grain composition:
20-30% of 12 meshes, 15-25% of 14 meshes, 15-20% of 18 meshes, 10-15% of 24 meshes, and the sum of the weight percentages of more than 10-15% of 30 meshes is 100%;
the polymer modified asphalt layer comprises the following raw materials in percentage by weight:
42.0 to 47.0 percent of 90# asphalt, 4.5 to 6.5 percent of SBS modifier, 3.0 to 5.0 percent of APP modifier, 4.0 to 8.0 percent of petroleum resin, 5.0 to 10.0 percent of naphthenic oil, 10.0 to 15.0 percent of tire rubber powder and 15.0 to 25.0 percent of filler, wherein the sum of the weight percentages of the raw materials is 100 percent;
the carcass reinforcing layer is one of 250g of glass fiber reinforced polyester tire, 250g of polyester tire and 0.8-1.0 mm of high-density polyethylene sheet;
the anti-sticking layer of the polyethylene film is 20g/m 2 A polyethylene film.
2. The weather-resistant exposed modified asphalt waterproof coiled material as claimed in claim 1, wherein the organosilicon copolymerization modified polystyrene-acrylic emulsion is prepared by copolymerization of an organosilicon monomer and an acrylate emulsion, and has a solid content of 45-49%, a pH value of 7-9 and a Tg value of 25-29 ℃.
3. The weather-resistant exposed modified asphalt waterproof coiled material as claimed in claim 1, wherein the No. 90 asphalt is heavy traffic road asphalt with wax content of less than or equal to 2.2%.
4. The weather-resistant exposed modified asphalt waterproof roll as claimed in claim 1, wherein the SBS modifier is formed by compounding star SBS4303 and linear SBS1401 in a weight ratio of 1.
5. The weather-resistant exposed modified asphalt waterproof coiled material as claimed in claim 1, wherein the tire rubber powder is 60-mesh ground tire rubber powder.
6. The weather-resistant exposed modified asphalt waterproofing membrane according to claim 1, wherein the petroleum resin is a terpene resin, and can increase the adhesion between the basalt particle layer and the polymer modified asphalt layer.
7. The weather-resistant exposed modified asphalt waterproof coiled material as claimed in claim 1, wherein the filler is talcum powder or coarse whiting, and the fineness is 200-400 meshes.
8. The method for preparing the weather-resistant exposed modified asphalt waterproof coiled material as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
(1) Preparing a modified asphalt mixture: adding 90# asphalt, softening oil and naphthenic oil into a reaction kettle, dehydrating for 30min at 130 ℃ under a stirring state, sequentially adding SBS modifier, APP modifier and petroleum resin, stirring and heating to 180 ℃, circulating for 60min through a colloid mill, adding tire rubber powder, keeping the temperature and stirring for 30min at 185 ℃, stopping stirring and standing for 10min, finally adding filler and stirring for 40min, and obtaining a modified asphalt mixture after the detection is qualified;
(2) Preparing a weather-resistant exposed modified asphalt waterproof coiled material: and (2) unfolding and drying the matrix, dipping the matrix into the modified asphalt mixture after pre-soaking, coating a film or covering sand, cooling by water, spraying a polymer consolidation spraying layer with the thickness of 0.05-0.1 mm on the basalt particle layer, blowing for drying to assist film formation, and cooling and consolidating to obtain the weather-resistant exposed modified asphalt waterproof coiled material.
9. The preparation method of the weather-resistant exposed modified asphalt waterproof roll material as claimed in claim 8, wherein the technical indexes of the polymer modified asphalt layer mixture meet the following requirements: qualified at the low temperature of minus 25 ℃, qualified at the heat resistance of 105 ℃, having a softening point of 120 to 125 ℃, a penetration (23 to 28) of 1/10mm and an oil permeability of less than or equal to 1 sheet.
10. The method for preparing the weather-resistant exposed modified asphalt waterproof coiled material as claimed in claim 8, wherein the temperature of the air blast drying is 120-140 ℃ and the time of the air blast drying is 60-90 s.
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