CN114395927B - Anti-aging elastomer SBS modified asphalt waterproof coiled material and preparation method thereof - Google Patents
Anti-aging elastomer SBS modified asphalt waterproof coiled material and preparation method thereof Download PDFInfo
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- CN114395927B CN114395927B CN202210120792.0A CN202210120792A CN114395927B CN 114395927 B CN114395927 B CN 114395927B CN 202210120792 A CN202210120792 A CN 202210120792A CN 114395927 B CN114395927 B CN 114395927B
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- sbs
- modified asphalt
- coiled material
- waterproof coiled
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- 239000010426 asphalt Substances 0.000 title claims abstract description 134
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 74
- 239000000463 material Substances 0.000 title claims abstract description 65
- 229920001971 elastomer Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000000806 elastomer Substances 0.000 title claims abstract description 27
- SJLABBVXMDWALA-UHFFFAOYSA-N ethene;octadecanamide Chemical class C=C.CCCCCCCCCCCCCCCCCC(N)=O SJLABBVXMDWALA-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 47
- 239000002048 multi walled nanotube Substances 0.000 claims abstract description 27
- 239000003208 petroleum Substances 0.000 claims abstract description 26
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 22
- 229920000570 polyether Polymers 0.000 claims abstract description 22
- 229920005862 polyol Polymers 0.000 claims abstract description 22
- 150000003077 polyols Chemical class 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000006229 carbon black Substances 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 239000002245 particle Substances 0.000 claims abstract description 18
- 238000013329 compounding Methods 0.000 claims abstract description 14
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 42
- 238000010008 shearing Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 25
- 239000000945 filler Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 21
- 239000003973 paint Substances 0.000 claims description 15
- 229920000459 Nitrile rubber Polymers 0.000 claims description 14
- 239000004793 Polystyrene Substances 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 13
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical group C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000004902 Softening Agent Substances 0.000 claims description 7
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000084 colloidal system Substances 0.000 claims description 7
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000002199 base oil Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound 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 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000010692 aromatic oil Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000003618 dip coating Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000005060 rubber Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 11
- 239000002131 composite material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 3
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000004001 molecular interaction Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- UJBORAMHOAWXLF-UHFFFAOYSA-N 1-(aziridin-1-yl)octadecan-1-one Chemical compound CCCCCCCCCCCCCCCCCC(=O)N1CC1 UJBORAMHOAWXLF-UHFFFAOYSA-N 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- 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 the components and mixing sequence in raw materials, so that the prepared waterproof coiled material has excellent ageing resistance, self-healing property and waterproof property, and the service life of the waterproof coiled material is prolonged; the comprehensive cost and effect are limited, the particle size of SBS is controlled to be 260-280 mu m, the heat stability, high temperature resistance and low temperature performance of the waterproof coiled material are greatly improved, the SBS forms a framework structure in asphalt, the high elasticity of rubber in the waterproof coiled material is favorably exerted, and the softening point is not reduced when the temperature is increased; when petroleum asphalt is modified, the mixing sequence is not adjustable, polyether polyol and multi-wall carbon nano tubes are firstly blended, so that the self-healing property and the water resistance of the waterproof coiled material are improved; the anti-aging agent is defined as being obtained by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide in a mass ratio of 2:1; when the waterproof coiled material raw materials are blended, the white carbon black and the anti-aging agent are added after being mixed.
Description
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 from 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 and moistureproof material is widely applied to waterproof projects of roofs, toilets and the like of industrial and civil buildings, and projects of roads, bridges, swimming pools and the like.
In order to relieve the urban heat island benefit, improve the ecological environment of the city, 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 service life of the SBS modified asphalt waterproof coiled material is short when the SBS modified asphalt waterproof coiled material is 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, so as 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 tire base layer and a lower covering layer, wherein the tire base layer is made of polyester fiber non-woven fabrics, modified asphalt paint is coated on two sides of the tire base layer, and transparent polyethylene films are covered on two sides to form the upper covering layer and the lower covering layer; the modified asphalt paint 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.
Further, SBS is star-shaped SBS, and the particle size of the SBS is 260-280 mu m; the number average molecular weight of SBS 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 better stability after long-term aging; the mass loss rate of the SBS modified asphalt with high polystyrene chain segment content after aging is obviously reduced, and the SBS modified asphalt has better thermal stability after short-term aging; the SBS modified asphalt containing more SB has poor ageing resistance and obviously increases the mass loss rate after ageing, so that the content of polystyrene chain segments in SBS is limited to be higher than the content of styrene-butadiene chain segments;
in the process of preparing the waterproof coiled material by the existing SBS modified asphalt, the polarity and the relative molecular mass of SBS are greatly different from those of petroleum asphalt, and the SBS is difficult to expand 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 the SBS, and improves the swelling and dispersing degree in the asphalt by reducing the particle size, thereby shortening the production period of the modified asphalt and reducing the production cost.
The SBS molecular chain segment is not moved and embrittled by using low-temperature mechanical crushing when shearing the particle size of the SBS, so that the SBS molecular chain segment is easy to crush, the original high elasticity and the inherent physical property of the substance can be maintained, and the effect is better than that of normal-temperature mechanical crushing.
The smaller the particle size of SBS, the better the high-temperature performance of asphalt is improved, but the difficulty of forming a skeleton structure in asphalt by the ultra-fine SBS is increased, which is unfavorable for the high-elasticity exertion of rubber, and the SBS is easy to generate cracking reaction, flow and deform when the temperature is increased, so that the softening point is reduced; however, the smaller the particle size, the larger the specific surface area, and the easier the asphalt swells, so that the low-temperature performance of the asphalt is improved; the SBS particle size of the invention is 260-280 mu m with limited comprehensive cost and effect.
Further, the softener is one of aromatic hydrocarbon oil and three-wire reducing 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-wall carbon nano tube.
Further, the preparation method of the modified asphalt comprises the following steps: and (3) ultrasonically stirring polyether polyol and multi-wall carbon nano tubes for 20min, adding the polyether polyol and the multi-wall carbon nano tubes into petroleum asphalt, continuously shearing for 20min at a shearing stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing for 40min at a shearing stirring speed of 3500rpm to obtain modified asphalt.
When the invention is used for modifying petroleum asphalt, polyether polyol and multi-wall carbon nano-tube must be firstly blended and added into petroleum asphalt, then 4, 4-diphenyl methane diisocyanate is added, and the mixing sequence is not adjustable, because if the multi-wall carbon nano-tube is directly premixed with petroleum asphalt, the surface free energy is high, the adding amount is small, and the multi-wall carbon nano-tube is easy to be completely covered by molecular chains of asphalt. And some polar groups from the pitch will be absorbed at the surface of the multiwall carbon nanotubes. The total number of polar groups that react with the later added 4, 4-diphenylmethane diisocyanate is reduced. The polyether polyol and the multi-wall carbon nano tube are firstly blended, so that the multi-wall carbon nano tube can be ensured to participate in the reaction of polyurethane in-situ generation, and the rut resistance and the water resistance of the waterproof coiled material are improved.
Further, the anti-aging agent is compounded by hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to a mass ratio of 2:1.
Further, the preparation method of the anti-aging agent comprises the following steps: preparing ethylene stearic acid amide into 3% chlorinated hydrocarbon solution, adding formaldehyde and diethanolamine, reacting for 1h at 40-50 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain the anti-aging agent.
Further, the mol ratio of the ethylene stearic acid amide to the formaldehyde is 1:1.
The ethylene stearic acid amide is subjected to hydroxylation treatment to contain amino groups and hydroxyl groups, so that when the ethylene stearic acid amide is blended with other components in raw materials, light components in asphalt are easy to fill into an SBS phase, the low-temperature flexibility of the composite modified asphalt is not deteriorated, the fatigue life and self-healing property are greatly improved, and the loss factor is remarkably reduced at 70 ℃; the amine group-containing ethylene stearic acid amide can directly enhance the molecular interaction between asphalt, and the loss factor of the composite modified asphalt at 70 ℃ is less than 2, so that the fatigue and self-healing property are improved; therefore, the fatigue life of the waterproof coiled material is greatly prolonged, the self-healing property of the waterproof coiled material is improved, and the anti-aging agent is limited to be prepared by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide 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 155-160 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill and grinding, heating to 165-170 ℃ and preserving heat for 60-70min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 175-180 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
(2) The two sides of the base layer are dip-coated with modified asphalt paint, the base layer is fixed in thickness by a pair of rollers, transparent polyethylene films are covered on the two sides to form an upper covering layer and a lower covering layer, and then the upper covering layer and the lower covering layer are cooled, shaped and rolled to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
When the raw materials of the waterproof coiled material are blended, the white carbon black is preferably added after being mixed with the anti-aging agent, 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 the components and mixing sequence in raw materials, so that the prepared waterproof coiled material has excellent ageing resistance, self-healing property and waterproof property, and the service life of the waterproof coiled material is prolonged;
defining SBS, wherein the number average molecular weight of the SBS is 40-45 ten thousand, the content of polystyrene chain segments in the SBS is higher than that of styrene-butadiene chain segments, and the heat stability of the waterproof coiled material is greatly improved; the SBS is subjected to crushing pretreatment by using liquid nitrogen low-temperature mechanical crushing, and the swelling and dispersing degree in asphalt is improved by controlling the particle size of the 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 the SBS forms a skeleton structure in asphalt, the high elasticity of rubber in the waterproof coiled material is exerted, the softening point is not reduced when the temperature is increased, and the high temperature resistance and the low temperature resistance of the waterproof coiled material are greatly improved;
when the petroleum asphalt is modified, the mixing sequence is not adjustable, polyether polyol and the multi-wall carbon nano tube are firstly blended to ensure that the multi-wall carbon nano tube participates in polyurethane in-situ generation, so that the self-healing property and the water resistance of the waterproof coiled material are improved;
limiting the anti-aging agent to be hydroxylated ethylene stearic acid amide and ethylene stearic acid amide which are compounded in a mass ratio of 2:1, wherein the hydroxylated ethylene stearic acid amide contains amino and hydroxyl, and when the hydroxylated ethylene stearic acid amide is blended with other components in the raw materials, the light components in the asphalt are fully filled into an SBS phase, the low-temperature flexibility of the composite modified asphalt is not deteriorated, the fatigue life and self-healing property of the waterproof coiled material are greatly improved, and the loss factor is obviously reduced at 70 ℃; the amine group-containing ethylene stearic acid amide can directly enhance the molecular interaction between asphalt, and the loss factor of the composite modified asphalt at 70 ℃ is less than 2; when the raw materials of the waterproof coiled material are blended, the white carbon black and the anti-aging agent are preferably added after being mixed, so that the heat stability of the waterproof coiled material is improved.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications such as up, down, left, right, front, and rear … … are involved in the embodiment of the present invention, the directional indications are merely used to explain a relative positional relationship, a movement condition, and the like between a certain posture such as the respective components, and if the certain posture is changed, the directional indications are changed accordingly. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The following description of the embodiments of the present invention will be presented in further detail with reference to the examples, which should be understood as being merely illustrative of the present invention and not limiting.
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 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill for grinding, heating to 165 ℃ and preserving heat for 70min, uniformly mixing white carbon black and an anti-aging agent, adding the mixture, heating to 175 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt paint 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;
SBS is star-shaped SBS with particle size of 260 μm; SBS has a number average molecular weight of 40 ten thousand; the polystyrene chain segment content in SBS is higher than the styrene-butadiene chain segment content;
the softener is a three-wire 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-wall carbon nano tube for 20min, adding the polyether polyol and the multi-wall carbon nano tube into petroleum asphalt, continuously shearing for 20min at a shearing stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing for 40min at a shearing stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is prepared by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to a mass ratio of 2:1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearic acid amide into a 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting for 1h at 40 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain an anti-aging agent; ethylene stearic acid amide and formaldehyde in the molar ratio of 1 to 1;
(2) The polyester fiber non-woven fabric is dip-coated with modified asphalt paint on both sides, the thickness is fixed by a pair of rollers, transparent polyethylene films are covered on both sides to form an upper covering layer and a lower covering layer, and then the upper covering layer and the lower covering layer are cooled, shaped and rolled 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 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill for grinding, heating to 168 ℃ and preserving heat for 65min, uniformly mixing white carbon black and an anti-aging agent, adding the mixture, heating to 178 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt paint comprises the following components in parts by weight: 48 parts of modified asphalt, 12 parts of SBS, 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;
SBS is star-shaped SBS with particle size of 270 μm; SBS has a number average molecular weight of 44 ten thousand; the polystyrene chain segment content in SBS is higher than the styrene-butadiene chain segment content;
the softener is aromatic hydrocarbon 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 tubes;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-wall carbon nano tube for 20min, adding the polyether polyol and the multi-wall carbon nano tube into petroleum asphalt, continuously shearing for 20min at a shearing stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing for 40min at a shearing stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is prepared by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to a mass ratio of 2:1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearic acid amide into a 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting for 1h at 50 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain an anti-aging agent; ethylene stearic acid amide and formaldehyde in the molar ratio of 1 to 1;
(2) The polyester fiber non-woven fabric is dip-coated with modified asphalt paint on both sides, the thickness is fixed by a pair of rollers, transparent polyethylene films are covered on both sides to form an upper covering layer and a lower covering layer, and then the upper covering layer and the lower covering layer are cooled, shaped and rolled 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 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill for grinding, heating to 170 ℃ and preserving heat for 70min, uniformly mixing white carbon black and an anti-aging agent, adding the mixture, heating to 180 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt paint 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;
SBS is star-shaped SBS, and the particle size of the SBS is 280 mu m; the number average molecular weight of SBS is 45 ten thousand; the polystyrene chain segment content in SBS is higher than the styrene-butadiene chain segment content;
the softener is a three-wire 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-wall carbon nano tube for 20min, adding the polyether polyol and the multi-wall carbon nano tube into petroleum asphalt, continuously shearing for 20min at a shearing stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing for 40min at a shearing stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is prepared by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to a mass ratio of 2:1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearic acid amide into a 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting for 1h at 50 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain an anti-aging agent; ethylene stearic acid amide and formaldehyde in the molar ratio of 1 to 1;
(2) The polyester fiber non-woven fabric is dip-coated with modified asphalt paint on both sides, the thickness is fixed by a pair of rollers, transparent polyethylene films are covered on both sides to form an upper covering layer and a lower covering layer, and then the upper covering layer and the lower covering layer are cooled, shaped and rolled to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Comparative example 1
Taking example 2 as a control group, SBS is linear SBS, and the particle size of SBS is 300 mu m; SBS has a number average molecular weight of 38 ten thousand; the polystyrene chain segment content in SBS is lower than the styrene-butadiene chain segment content, and other 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 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill for grinding, heating to 168 ℃ and preserving heat for 65min, uniformly mixing white carbon black and an anti-aging agent, adding the mixture, heating to 178 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt paint comprises the following components in parts by weight: 48 parts of modified asphalt, 12 parts of SBS, 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;
SBS is linear SBS with particle size of 300 μm; SBS has a number average molecular weight of 38 ten thousand; the polystyrene chain segment content in SBS is lower than the styrene-butadiene chain segment content;
the softener is aromatic hydrocarbon 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 tubes;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-wall carbon nano tube for 20min, adding the polyether polyol and the multi-wall carbon nano tube into petroleum asphalt, continuously shearing for 20min at a shearing stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing for 40min at a shearing stirring speed of 3500rpm to obtain modified asphalt;
the anti-aging agent is prepared by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to a mass ratio of 2:1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearic acid amide into a 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting for 1h at 50 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain an anti-aging agent; ethylene stearic acid amide and formaldehyde in the molar ratio of 1 to 1;
(2) The polyester fiber non-woven fabric is dip-coated with modified asphalt paint on both sides, the thickness is fixed by a pair of rollers, transparent polyethylene films are covered on both sides to form an upper covering layer and a lower covering layer, and then the upper covering layer and the lower covering layer are cooled, shaped and rolled to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Comparative example 2
In the control group of example 2, the petroleum asphalt was not modified in the raw materials, and the other steps were normal.
A preparation method of an anti-aging elastomer SBS modified asphalt waterproof coiled material comprises the following steps:
(1) Mixing petroleum asphalt and a softening agent uniformly, heating to 158 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill for grinding, heating to 168 ℃ and preserving heat for 65min, adding white carbon black and an anti-aging agent after mixing uniformly, heating to 178 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
the modified asphalt paint comprises the following components in parts by weight: 48 parts of petroleum asphalt, 12 parts of SBS, 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;
SBS is star-shaped SBS with particle size of 270 μm; SBS has a number average molecular weight of 44 ten thousand; the polystyrene chain segment content in SBS is higher than the styrene-butadiene chain segment content;
the softener is aromatic hydrocarbon oil; the filler is montmorillonite;
the anti-aging agent is prepared by compounding hydroxylated ethylene stearic acid amide and ethylene stearic acid amide according to a mass ratio of 2:1;
the preparation method of the anti-aging agent comprises the following steps: preparing 1mmol of ethylene stearic acid amide into a 3% chlorinated hydrocarbon solution, adding 1mmol of formaldehyde and 1mmol of diethanolamine, reacting for 1h at 50 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain an anti-aging agent; ethylene stearic acid amide and formaldehyde in the molar ratio of 1 to 1;
(2) The polyester fiber non-woven fabric is dip-coated with modified asphalt paint on both sides, the thickness is fixed by a pair of rollers, transparent polyethylene films are covered on both sides to form an upper covering layer and a lower covering layer, and then the upper covering layer and the lower covering layer are cooled, shaped and rolled to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material.
Comparative example 3
Using example 2 as a control, the anti-aging agent in the raw material was ethylene stearamide, and the other procedures were normal.
Comparative example 4
Taking example 2 as a control group, wherein the anti-aging agent in the raw material is ethylene stearic acid amide, the petroleum asphalt is not modified, the SBS is linear SBS, and the particle size of the SBS is 300 mu m; SBS has a number average molecular weight of 38 ten thousand; the polystyrene chain segment content in SBS is lower than the styrene-butadiene chain segment content, and other procedures are normal.
Comparative example 5
In the case of using example 1 as a control group, the white carbon black and the anti-aging agent were not mixed uniformly in advance during blending, and the other steps were normal.
Performance test: for the waterproof coiled materials prepared in examples 1-3 and comparative examples 1-5, coiled material samples are cut according to the standard GB 18242-2008, 6 groups of samples are cut, 10 small samples are respectively cut for each group of samples, the length, width and thickness of the small samples are 150mm multiplied by 25mm multiplied by 4mm, the low-temperature flexibility after heat aging and the low-temperature flexibility after artificial climate accelerated aging of the samples are respectively measured, and the test results are shown in Table 1;
1. heat resistance test is carried out with reference to GB/T328.11, and if a test sample flows, bubbles or slides at a temperature lower than 105 ℃, the heat resistance performance is not qualified;
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/m 2 The illumination time is 720h; the test results are shown in table 1;
TABLE 1
As can be seen from examples 1-3, the waterproof coiled material prepared according to the invention has good high temperature resistance; as can be seen from comparison of example 2 and comparative example 1, the SBS is a star-shaped SBS, the particle size is 260-280 mu m, the number average molecular weight is 40-45 ten thousand, when the polystyrene chain segment content in the SBS is higher than the styrene-butadiene chain segment content, the high temperature resistance of the waterproof coiled material is improved, the waterproof coiled material is softer, and the waterproof coiled material cannot rebound to have adverse effect on shaping when bending is needed; as can be seen from comparison of example 2 with comparative example 2 and comparative example 3, the high-temperature stability of the waterproof coiled material can be improved by limiting the petroleum asphalt modification treatment and the anti-aging agent respectively; comparing comparative examples 2, 3 and 4, it can be seen that limiting SBS, modifying petroleum asphalt and anti-aging agent to cooperatively improve various performances of the waterproof coiled material; comparing the example 1 with the comparative example 5 shows that the white carbon black and the anti-aging agent are added after being uniformly mixed in advance when the raw materials are blended, so that the dispersion stability of the white carbon black can be improved, and the high-temperature stability of the waterproof coiled material 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 overcomes the defect of the existing commercial products in the aging resistance.
The foregoing description is only exemplary embodiments of the present invention and is not intended to limit the scope of the invention, but rather, the equivalent structural changes made by the present invention in the light of the inventive concept, or the direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (6)
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 155-160 ℃ and preserving heat for 10min, adding SBS and nitrile rubber, stirring uniformly, starting a colloid mill and grinding, heating to 165-170 ℃ and preserving heat for 60-70min, uniformly mixing white carbon black and an anti-aging agent, adding, heating to 175-180 ℃ and preserving heat for 10min, adding a filler, and preserving heat for 10min at 180 ℃ to obtain a modified asphalt coating;
(2) Dip-coating modified asphalt paint on two sides of a base layer, passing through a pair of rollers to fix the thickness, covering transparent polyethylene films on two sides to form an upper covering layer and a lower covering layer, cooling, shaping and rolling to obtain the anti-aging elastomer SBS modified asphalt waterproof coiled material;
the SBS is star-shaped SBS, and the particle size of the SBS is 260-280 mu m; the number average molecular weight of the SBS is 40-45 ten thousand; the polystyrene chain segment content in the SBS is higher than the styrene-butadiene chain segment content;
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-wall carbon nano tube;
the preparation method of the modified asphalt comprises the following steps: ultrasonically stirring polyether polyol and a multi-wall carbon nano tube for 20min, adding the polyether polyol and the multi-wall carbon nano tube into petroleum asphalt, continuously shearing for 20min at a shearing stirring speed of 3500rpm, then adding a 4, 4-diphenylmethane diisocyanate solution, and continuously shearing for 40min at a shearing stirring speed of 3500rpm to obtain modified asphalt;
the preparation method of the anti-aging agent comprises the following steps: preparing ethylene stearic acid amide into 3% chlorinated hydrocarbon solution, adding formaldehyde and diethanolamine, reacting for 1h at 40-50 ℃ to obtain hydroxylated ethylene stearic acid amide, and compounding the hydroxylated ethylene stearic acid amide and the ethylene stearic acid amide according to a mass ratio of 2:1 to obtain the anti-aging agent.
2. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material according to claim 1, wherein the base layer is a polyester fiber non-woven fabric; the modified asphalt paint 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 according to claim 1, wherein the softener is one of aromatic oil and three-wire reducing base oil.
4. The method for preparing the anti-aging elastomer SBS modified asphalt waterproof coiled material according to claim 1, wherein the filler is one of talcum powder, montmorillonite, kaolin and heavy calcium carbonate.
5. The method for preparing an anti-aging elastomer SBS modified asphalt waterproof coiled material according to claim 1, wherein in the preparation of the anti-aging agent, the mol ratio of ethylene stearic acid amide to formaldehyde is 1:1.
6. 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 1-5.
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| CN113817331A (en) * | 2021-09-24 | 2021-12-21 | 深圳市卓宝科技股份有限公司 | Production process of high-durability SBS coiled material |
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