CN114395927A - Anti-aging elastomer SBS (styrene butadiene styrene) modified asphalt waterproof coiled material and preparation method thereof - Google Patents

Anti-aging elastomer SBS (styrene butadiene styrene) modified asphalt waterproof coiled material and preparation method thereof Download PDF

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Publication number
CN114395927A
CN114395927A CN202210120792.0A CN202210120792A CN114395927A CN 114395927 A CN114395927 A CN 114395927A CN 202210120792 A CN202210120792 A CN 202210120792A CN 114395927 A CN114395927 A CN 114395927A
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modified asphalt
coiled material
sbs
waterproof coiled
parts
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CN114395927B (en
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丁鑫炜
何学诗
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Jiangsu Beishite Waterproof Technology Co ltd
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Jiangsu Beishite Waterproof Technology Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • D06N5/003—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch coated with bitumen
    • D06N5/006—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch coated with bitumen characterised by the means to apply it to a support or to another roofing membrane, e.g. self-adhesive layer or strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0036—Polyester fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • D06N5/003—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch coated with bitumen
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • 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
    • 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
    • E04B1/66—Sealings
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/14—Properties of the materials having chemical properties
    • D06N2209/142—Hydrophobic

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention provides an anti-aging elastomer SBS modified asphalt waterproof coiled material and a preparation method thereof, wherein a complex cross-linked network structure is constructed by limiting components in raw materials and a mixing sequence, so that the prepared waterproof coiled material is ensured to have excellent aging resistance, self-healing property and waterproofness, and the service life of the waterproof coiled material is prolonged; the comprehensive cost and effect are limited, the SBS particle size is controlled to be 260-280 mu m, the thermal stability, high temperature resistance and low temperature resistance of the waterproof coiled material are greatly improved, the SBS forms a framework structure in the asphalt, the high elasticity of the rubber in the waterproof coiled material is favorably exerted, and the softening point is not reduced when the temperature is increased; when the petroleum asphalt is modified, the mixing sequence cannot be adjusted, and the polyether polyol and the multi-wall carbon nano tube are blended to improve the self-healing property and the water resistance of the waterproof coiled material; the anti-aging agent is limited to be obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1; when the raw materials of the waterproof coiled material are blended, the white carbon black and the anti-aging agent are mixed and then added.

Description

Anti-aging elastomer SBS (styrene butadiene styrene) modified asphalt waterproof coiled material and preparation method thereof
Technical Field
The invention relates to the technical field of waterproof coiled materials, in particular to an anti-aging elastomer SBS modified asphalt waterproof coiled material and a preparation method thereof.
Background
The SBS modified asphalt waterproof coiled material consists of a covering layer, a base and an anti-sticking isolation layer, wherein the covering layer is SBS rubber modified petroleum asphalt, the base is made of jute cloth, glass fiber felt, polyester fiber non-woven fabric and the like, and the anti-sticking isolation layer is a plastic film; the SBS modified asphalt waterproof coiled material is prepared by processing the raw materials through the procedures of eutectic melting, dipping, composite forming, curling and the like, and has the advantages of small pollution, simple and convenient construction, good extensibility and the like. The waterproof paint is widely applied to waterproof engineering of roofs, toilets and the like of industrial and civil buildings and waterproof and moistureproof engineering of roads, bridges, swimming pools and the like.
In order to relieve the urban 'heat island benefit', improve the urban ecological environment and realize green development, the SBS modified asphalt waterproof coiled material is greatly popularized in urban construction. However, the existing SBS modified asphalt waterproof coiled material has poor ageing resistance, so that the existing SBS modified asphalt waterproof coiled material has short effective service life when being used as a planted roof.
Disclosure of Invention
The invention aims to provide an anti-aging elastomer SBS modified asphalt waterproof coiled material and a preparation method thereof, and aims to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises an upper covering layer, a base layer and a lower covering layer, wherein the base layer is a polyester fiber non-woven fabric, modified asphalt paint is coated on two sides of the base layer, and transparent polyethylene films are covered on the two sides to form the upper covering layer and the lower covering layer; the modified asphalt coating comprises the following components in parts by weight: 40-55 parts of modified asphalt, 10-15 parts of SBS, 8-12 parts of softener, 5-9 parts of nitrile rubber, 5-10 parts of filler, 4-6 parts of anti-aging agent and 3-5 parts of white carbon black.
Furthermore, SBS is star-shaped SBS, and the particle size of SBS is 260-; the SBS number average molecular weight is 40-45 ten thousand; the polystyrene segment content in SBS is higher than the styrene-butadiene segment content.
The modified asphalt with large SBS number average molecular weight has good stability after long-term aging; the quality loss rate of the aged SBS modified asphalt with high polystyrene chain segment content is obviously reduced, and the aged SBS modified asphalt has better thermal stability after short-term aging; the SBS modified asphalt containing more SB has poor aging resistance, and the mass loss rate after aging is obviously increased, so that the content of the polystyrene chain segment in the SBS is limited to be higher than that of the styrene-butadiene chain segment;
in the process of preparing the waterproof coiled material by the existing SBS modified asphalt, the difference between the polarity and the relative molecular mass of the SBS and the quality of the waterproof coiled material is larger than that of the petroleum asphalt, and the SBS is difficult to swell and disperse in the petroleum asphalt, so that the reaction stability time is prolonged, and the production scale is limited.
The invention adopts the pre-crushing process to crush and pre-treat SBS, and improves the swelling and dispersion degree in the asphalt by reducing the particle size, thereby shortening the production period of the modified asphalt and reducing the production cost.
When the SBS grain diameter is cut, the SBS molecular chain segment cannot move and is embrittled by using low-temperature mechanical grinding, so that the SBS molecular chain segment is easy to grind, the original high elasticity and inherent physical property of the material can be kept, and the effect is better than that of normal-temperature mechanical grinding.
The smaller the SBS particle size is, the better the high-temperature performance of the asphalt is, but the difficulty of forming a skeleton structure in the asphalt by the excessively thin SBS is increased, the high elasticity of the rubber is not favorably exerted, and the cracking reaction is easy to occur when the temperature is increased, so that the flowing deformation is easy, and the softening point is reduced; but the smaller the particle size, the larger the specific surface area, and the easier the swelling in asphalt, thereby improving the low-temperature performance of asphalt; the SBS particle size is 260-280 μm.
Further, the softening agent is one of aromatic oil and reduced-three-wire base oil.
Further, the filler is one of talcum powder, heavy calcium carbonate, montmorillonite and kaolin.
Further, the modified asphalt comprises the following components in parts by weight: 34-47 parts of petroleum asphalt, 1-2 parts of polyether polyol, 5-6 parts of 4, 4-diphenylmethane diisocyanate and 0.14-0.19 part of multi-walled carbon nanotube.
Further, the preparation method of the modified asphalt comprises the following steps: and ultrasonically stirring polyether polyol and the multi-wall carbon nano tube for 20min, adding the mixture into petroleum asphalt, continuously shearing the mixture for 20min at a shearing and stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing the mixture for 40min at the shearing and stirring speed of 3500rpm to obtain the modified asphalt.
When the invention is used for modifying the petroleum asphalt, the polyether polyol and the multi-walled carbon nano-tube are firstly blended and added into the petroleum asphalt, and then the 4, 4-diphenylmethane diisocyanate is added, and the mixing sequence can not be adjusted, because the multi-walled carbon nano-tube is directly premixed with the petroleum asphalt, the multi-walled carbon nano-tube is easily and completely covered by molecular chains of the asphalt due to high surface free energy and small addition amount. And some polar groups from the pitch will be absorbed on the surface of the multi-walled carbon nanotubes. The total number of polar groups that react with the 4, 4-diphenylmethane diisocyanate added later is reduced. The polyether polyol and the multi-walled carbon nano-tubes are blended to ensure that the multi-walled carbon nano-tubes participate in the reaction of in-situ generation of polyurethane, so that the anti-rutting capability and the water resistance of the waterproof roll are improved.
Further, the anti-aging agent is obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1.
Further, the preparation method of the anti-aging agent comprises the following steps: preparing ethylene stearamide into 3% chlorinated hydrocarbon solution, adding formaldehyde and diethanol amine, reacting for 1h at 40-50 ℃ to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent.
Furthermore, the molar ratio of ethylene stearic acid amide to formaldehyde is 1: 1.
The ethylene stearic acid amide is subjected to hydroxylation treatment to enable the ethylene stearic acid amide to contain amino and hydroxyl, when the ethylene stearic acid amide is blended with other components in the raw materials, light components in the asphalt are extremely easy to fill into an SBS phase, the low-temperature flexibility of the composite modified asphalt is not deteriorated, the fatigue life and the self-healing performance are greatly prolonged, and the loss factor at 70 ℃ is remarkably reduced; the amino-containing ethylene stearic acid amide can directly enhance the molecular interaction between the asphalts, the loss factor of the composite modified asphalt at 70 ℃ is less than 2, and the fatigue and self-healing performance are improved; therefore, the fatigue life of the waterproof coiled material is greatly prolonged, the self-healing performance of the waterproof coiled material is improved, and the anti-aging agent is limited to be obtained by compounding hydroxylated ethylene stearamide and ethylene stearamide in a mass ratio of 2: 1.
Further, the preparation method of the anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) uniformly mixing modified asphalt and a softening agent, heating to 155-;
(2) dip-coating the modified asphalt coating on two surfaces of the base layer, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
When the raw materials of the waterproof roll are blended, the white carbon black and the anti-aging agent are preferably added after being mixed, because the ethylene stearic acid amide enhances the dispersion stability of the white carbon black.
The invention has the beneficial effects that:
the invention provides an anti-aging elastomer SBS modified asphalt waterproof coiled material and a preparation method thereof, wherein a complex cross-linked network structure is constructed by limiting components in raw materials and a mixing sequence, so that the prepared waterproof coiled material is ensured to have excellent aging resistance, self-healing property and waterproofness, and the service life of the waterproof coiled material is prolonged;
the SBS is limited, the number average molecular weight of the SBS is 40-45 ten thousand, the content of the polystyrene chain segment in the SBS is higher than that of the styrene-butadiene chain segment, and the thermal stability of the waterproof roll is greatly improved; liquid nitrogen low-temperature mechanical crushing is used for crushing and pretreating SBS, and the swelling and dispersing degree in asphalt is improved by controlling the particle size of SBS, so that the production period of the waterproof coiled material is shortened, and the production cost is reduced; the comprehensive cost and effect are limited, the particle size of SBS is controlled to be 260-280 mu m, so that SBS forms a framework structure in asphalt, thereby being beneficial to the exertion of rubber high elasticity in the waterproof coiled material, not reducing the softening point when the temperature rises, and greatly improving the high temperature resistance and low temperature resistance of the waterproof coiled material;
when the petroleum asphalt is modified, the mixing sequence can not be adjusted, the polyether polyol and the multi-walled carbon nano-tubes are blended to ensure that the multi-walled carbon nano-tubes participate in the in-situ generation of polyurethane, so that the self-healing property and the water resistance of the waterproof coiled material are improved;
the anti-aging agent is limited to be obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2:1, the hydroxylated ethylene stearic acid amide contains amino and hydroxyl, and when the hydroxylated ethylene stearic acid amide is blended with other components in raw materials, light components in the asphalt are fully filled into an SBS phase, the low-temperature flexibility of the composite modified asphalt is not degraded, the fatigue life and self-healing performance of the waterproof coiled material are greatly improved, and loss factors at 70 ℃ are remarkably reduced; the ethylene stearic acid amide containing amino can directly enhance the molecular interaction between the asphalts, and the loss factor of the composite modified asphalt at 70 ℃ is less than 2; when the raw materials of the waterproof roll are blended, preferably, the white carbon black and the anti-aging agent are added after being mixed, so that the thermal stability of the waterproof roll is improved.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications such as up, down, left, right, front, and back … … are involved in the embodiment of the present invention, the directional indications are only used to explain a specific posture, such as a relative positional relationship between components, a motion situation, and the like, and if the specific posture changes, the directional indications also change accordingly. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The technical solutions of the present invention are further described in detail with reference to specific examples, which should be understood that the following examples are only illustrative of the present invention and are not intended to limit the present invention.
Example 1
A preparation method of an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) uniformly mixing modified asphalt and a softening agent, heating to 155 ℃, preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, grinding by starting a colloid mill, heating to 165 ℃, preserving heat for 70min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 175 ℃, preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt coating comprises the following components in parts by weight: 40.14 parts of modified asphalt, 10 parts of SBS, 8 parts of softener, 5 parts of nitrile rubber, 5 parts of filler, 4 parts of anti-aging agent and 3 parts of white carbon black;
the SBS is star-shaped SBS, and the grain diameter of the SBS is 260 mu m; SBS number average molecular weight is 40 ten thousand; the content of polystyrene chain segments in SBS is higher than that of styrene-butadiene chain segments;
the softener is a three-line-reducing base oil; the filler is talcum powder;
the modified asphalt comprises the following components in parts by weight: 34 parts of petroleum asphalt, 1 part of polyether polyol, 5 parts of 4, 4-diphenylmethane diisocyanate and 0.14 part of multi-walled carbon nanotube;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-walled carbon nanotube for 20min, adding the mixture into petroleum asphalt, continuously shearing the mixture for 20min at a shearing and stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing the mixture for 40min at the shearing and stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearamide into 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanol amine, reacting at 40 ℃ for 1h to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent; the molar ratio of ethylene stearic acid amide to formaldehyde is 1: 1;
(2) dip-coating the modified asphalt coating on two sides of the polyester fiber non-woven fabric, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Example 2
A preparation method of an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) uniformly mixing modified asphalt and a softening agent, heating to 158 ℃, preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, grinding by starting a colloid mill, heating to 168 ℃, preserving heat for 65min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 178 ℃, preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt coating comprises the following components in parts by weight: 48 parts of modified asphalt, 12 parts of SBS (styrene butadiene styrene), 10 parts of softener, 8 parts of nitrile rubber, 8 parts of filler, 5 parts of anti-aging agent and 4 parts of white carbon black;
the SBS is star-shaped SBS, and the grain diameter of the SBS is 270 mu m; SBS number average molecular weight is 44 ten thousand; the content of polystyrene chain segments in SBS is higher than that of styrene-butadiene chain segments;
the softening agent is aromatic oil; the filler is montmorillonite;
the modified asphalt comprises the following components in parts by weight: 40 parts of petroleum asphalt, 2 parts of polyether polyol, 5.82 parts of 4, 4-diphenylmethane diisocyanate and 0.18 part of multi-wall carbon nano tube;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-walled carbon nanotube for 20min, adding the mixture into petroleum asphalt, continuously shearing the mixture for 20min at a shearing and stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing the mixture for 40min at the shearing and stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearamide into 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting at 50 ℃ for 1h to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent; the molar ratio of ethylene stearic acid amide to formaldehyde is 1: 1;
(2) dip-coating the modified asphalt coating on two sides of the polyester fiber non-woven fabric, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Example 3
A preparation method of an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) uniformly mixing modified asphalt and a softening agent, heating to 160 ℃, preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, grinding by starting a colloid mill, heating to 170 ℃, preserving heat for 70min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 180 ℃, preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt coating comprises the following components in parts by weight: 55 parts of modified asphalt, 15 parts of SBS, 12 parts of softener, 9 parts of nitrile rubber, 10 parts of filler, 6 parts of anti-aging agent and 5 parts of white carbon black;
the SBS is star-shaped SBS, and the grain diameter of the SBS is 280 mu m; SBS number average molecular weight is 45 ten thousand; the content of polystyrene chain segments in SBS is higher than that of styrene-butadiene chain segments;
the softener is a three-line-reducing base oil; the filler is kaolin;
the modified asphalt comprises the following components in parts by weight: 47 parts of petroleum asphalt, 2 parts of polyether polyol, 5.81 parts of 4, 4-diphenylmethane diisocyanate and 0.19 part of multi-wall carbon nano tube;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-walled carbon nanotube for 20min, adding the mixture into petroleum asphalt, continuously shearing the mixture for 20min at a shearing and stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing the mixture for 40min at the shearing and stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearamide into 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting at 50 ℃ for 1h to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent; the molar ratio of ethylene stearic acid amide to formaldehyde is 1: 1;
(2) dip-coating the modified asphalt coating on two sides of the polyester fiber non-woven fabric, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Comparative example 1
Taking the example 2 as a comparison group, the SBS is linear SBS, and the grain diameter of the SBS is 300 μm; SBS number average molecular weight is 38 ten thousand; the content of the polystyrene chain segment in the SBS is lower than that of the styrene-butadiene chain segment, and other working procedures are normal.
A preparation method of an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) uniformly mixing modified asphalt and a softening agent, heating to 158 ℃, preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, grinding by starting a colloid mill, heating to 168 ℃, preserving heat for 65min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 178 ℃, preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt coating comprises the following components in parts by weight: 48 parts of modified asphalt, 12 parts of SBS (styrene butadiene styrene), 10 parts of softener, 8 parts of nitrile rubber, 8 parts of filler, 5 parts of anti-aging agent and 4 parts of white carbon black;
the SBS is linear SBS with grain diameter of 300 μm; SBS number average molecular weight is 38 ten thousand; the content of polystyrene chain segments in SBS is lower than that of styrene-butadiene chain segments;
the softening agent is aromatic oil; the filler is montmorillonite;
the modified asphalt comprises the following components in parts by weight: 40 parts of petroleum asphalt, 2 parts of polyether polyol, 5.82 parts of 4, 4-diphenylmethane diisocyanate and 0.18 part of multi-wall carbon nano tube;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-walled carbon nanotube for 20min, adding the mixture into petroleum asphalt, continuously shearing the mixture for 20min at a shearing and stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing the mixture for 40min at the shearing and stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearamide into 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting at 50 ℃ for 1h to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent; the molar ratio of ethylene stearic acid amide to formaldehyde is 1: 1;
(2) dip-coating the modified asphalt coating on two sides of the polyester fiber non-woven fabric, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Comparative example 2
In the control group of example 2, the raw materials were not modified with petroleum asphalt, and other steps were normal.
A preparation method of an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) uniformly mixing petroleum asphalt and a softening agent, heating to 158 ℃, preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill for grinding, heating to 168 ℃, preserving heat for 65min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 178 ℃, preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt coating comprises the following components in parts by weight: 48 parts of petroleum asphalt, 12 parts of SBS (styrene butadiene styrene), 10 parts of softener, 8 parts of nitrile rubber, 8 parts of filler, 5 parts of anti-aging agent and 4 parts of white carbon black;
the SBS is star-shaped SBS, and the grain diameter of the SBS is 270 mu m; SBS number average molecular weight is 44 ten thousand; the content of polystyrene chain segments in SBS is higher than that of styrene-butadiene chain segments;
the softening agent is aromatic oil; the filler is montmorillonite;
the anti-aging agent is obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to the mass ratio of 2: 1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearamide into 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting at 50 ℃ for 1h to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent; the molar ratio of ethylene stearic acid amide to formaldehyde is 1: 1;
(2) dip-coating the modified asphalt coating on two sides of the polyester fiber non-woven fabric, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Comparative example 3
The comparative example 2 was used, the antioxidant in the raw material was ethylene stearamide, and the other steps were normal.
Comparative example 4
Taking the example 2 as a comparison group, the anti-aging agent in the raw material is ethylene stearamide, the petroleum asphalt is not modified, the SBS is linear SBS, and the grain diameter of the SBS is 300 mu m; SBS number average molecular weight is 38 ten thousand; the content of the polystyrene chain segment in the SBS is lower than that of the styrene-butadiene chain segment, and other working procedures are normal.
Comparative example 5
Taking the example 1 as a control group, when the raw materials are blended, the white carbon black and the anti-aging agent are not uniformly mixed in advance and then added, and other procedures are normal.
And (3) performance testing: the waterproof coiled materials prepared in the examples 1-3 and the comparative examples 1-5 are cut into coiled material samples according to the standard GB 18242 + 2008, 6 groups of samples are cut, 10 samples in each group are taken, the length multiplied by the width multiplied by the thickness of the samples is 150mm multiplied by 25mm multiplied by 4mm, the low-temperature flexibility of the samples, the low-temperature flexibility after thermal aging and the low-temperature flexibility after artificial climate accelerated aging are respectively measured, and the test results are shown in the table 1;
1. the heat resistance test is carried out according to GB/T328.11, and if the test sample flows, bubbles or slides at the temperature of below 105 ℃, the heat resistance performance is unqualified;
2. aging performance: the artificial climate accelerated aging is tested according to GB/T18244, a xenon arc lamp is adopted, and the irradiation energy is 1500MJ/m2Illumination time is 720 h; the test results are shown in table 1;
Figure BDA0003498098550000091
Figure BDA0003498098550000101
TABLE 1
As can be seen from examples 1-3, the waterproof roll prepared according to the invention has good high temperature resistance; as can be seen from the comparison between the example 2 and the comparative example 1, the SBS is star-shaped SBS, the particle size is 260-280 μm, the number average molecular weight is 40-45 ten thousand, when the content of the polystyrene chain segment in the SBS is higher than that of the styrene-butadiene chain segment, the high temperature resistance of the waterproof coiled material is improved, and the waterproof coiled material is soft and can not rebound to generate adverse effects on shaping when being bent; comparing the example 2 with the comparative example 2 and the comparative example 3, it can be known that the high-temperature stability of the waterproof roll can be improved by respectively limiting the petroleum asphalt modification treatment and the anti-aging agent; comparing the comparative example 2, the comparative example 3 and the comparative example 4, the SBS is limited, the petroleum asphalt modification treatment and the anti-aging agent are limited, and all performances of the waterproof roll are synergistically improved; comparing example 1 with comparative example 5, it can be seen that when the raw materials are blended, the white carbon black and the anti-aging agent are uniformly mixed in advance and then added, so that the dispersion stability of the white carbon black can be improved, and the high-temperature stability of the waterproof roll can be improved.
The anti-aging elastomer SBS modified asphalt waterproof coiled material prepared by the invention has high temperature resistance, aging resistance and self-healing property, and makes up the defects of the existing commercial products in the aging resistance aspect.
The above description is only an example of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the present specification and directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The preparation method of the anti-aging elastomer SBS modified asphalt waterproof coiled material is characterized by comprising the following steps of:
(1) uniformly mixing modified asphalt and a softening agent, heating to 155-;
(2) dip-coating the modified asphalt coating on two surfaces of the base layer, fixing the thickness by double rollers, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, fixing and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
2. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 1, wherein the base layer is polyester fiber non-woven fabric; the modified asphalt coating comprises the following components in parts by weight: 40-55 parts of modified asphalt, 10-15 parts of SBS, 8-12 parts of softener, 5-9 parts of nitrile rubber, 5-10 parts of filler, 4-6 parts of anti-aging agent and 3-5 parts of white carbon black.
3. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 1, wherein the SBS is star-shaped SBS, and the particle size of the SBS is 260-280 μm; the SBS number average molecular weight is 40-45 ten thousand; the polystyrene chain segment content in the SBS is higher than that of the styrene-butadiene chain segment content.
4. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 1, wherein the softening agent is one of aromatic oil and reduced-pitch base oil.
5. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 1, wherein the filler is one of talc powder, montmorillonite, kaolin and ground calcium carbonate.
6. The preparation method of the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 1, wherein the modified asphalt comprises the following components in parts by weight: 34-47 parts of petroleum asphalt, 1-2 parts of polyether polyol, 5-6 parts of 4, 4-diphenylmethane diisocyanate and 0.14-0.19 part of multi-walled carbon nanotube.
7. The preparation method of the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 6, wherein the preparation method of the modified asphalt comprises the following steps: and ultrasonically stirring polyether polyol and the multi-wall carbon nano tube for 20min, adding the mixture into petroleum asphalt, continuously shearing the mixture for 20min at a shearing and stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing the mixture for 40min at the shearing and stirring speed of 3500rpm to obtain the modified asphalt.
8. The preparation method of the anti-aging elastomer SBS modified asphalt waterproof coiled material as claimed in claim 1, wherein the preparation method of the anti-aging agent comprises the following steps: preparing ethylene stearamide into 3% chlorinated hydrocarbon solution, adding formaldehyde and diethanol amine, reacting for 1h at 40-50 ℃ to obtain hydroxylated ethylene stearamide, and compounding the hydroxylated ethylene stearamide and the ethylene stearamide in a mass ratio of 2:1 to obtain the anti-aging agent.
9. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material according to claim 8, wherein the molar ratio of the ethylene stearic acid amide to the formaldehyde is 1: 1.
10. An anti-aging elastomer SBS modified asphalt waterproof coiled material, which is characterized by being prepared by the preparation method of any one of claims 1-9.
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