CN116478550B - SBS resin modified asphalt waterproof material and preparation method thereof, waterproof coiled material and preparation method thereof - Google Patents
SBS resin modified asphalt waterproof material and preparation method thereof, waterproof coiled material and preparation method thereof Download PDFInfo
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- CN116478550B CN116478550B CN202310415994.2A CN202310415994A CN116478550B CN 116478550 B CN116478550 B CN 116478550B CN 202310415994 A CN202310415994 A CN 202310415994A CN 116478550 B CN116478550 B CN 116478550B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 348
- 239000011347 resin Substances 0.000 title claims abstract description 177
- 229920005989 resin Polymers 0.000 title claims abstract description 177
- 239000000463 material Substances 0.000 title claims abstract description 165
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 144
- 229920001971 elastomer Polymers 0.000 claims abstract description 78
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 63
- 239000001257 hydrogen Substances 0.000 claims abstract description 34
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 34
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 150000001412 amines Chemical class 0.000 claims abstract description 30
- 238000010008 shearing Methods 0.000 claims description 49
- 239000010410 layer Substances 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 30
- 238000002955 isolation Methods 0.000 claims description 28
- 239000003921 oil Substances 0.000 claims description 27
- 235000019198 oils Nutrition 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 25
- 239000003607 modifier Substances 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 238000004078 waterproofing Methods 0.000 claims description 13
- 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 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000010692 aromatic oil Substances 0.000 claims description 4
- 239000003549 soybean oil Substances 0.000 claims description 4
- 235000012424 soybean oil Nutrition 0.000 claims description 4
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical group CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- NFKGQHYUYGYHIS-UHFFFAOYSA-N dibutyl propanedioate Chemical compound CCCCOC(=O)CC(=O)OCCCC NFKGQHYUYGYHIS-UHFFFAOYSA-N 0.000 claims description 3
- HCWOVPZEAFLXPL-UHFFFAOYSA-N diphenyl propanedioate Chemical compound C=1C=CC=CC=1OC(=O)CC(=O)OC1=CC=CC=C1 HCWOVPZEAFLXPL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims 1
- 230000002940 repellent Effects 0.000 claims 1
- 239000005871 repellent Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000002982 water resistant material Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 25
- 239000000126 substance Substances 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 13
- 239000001301 oxygen Substances 0.000 abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000004132 cross linking Methods 0.000 abstract description 5
- 125000005842 heteroatom Chemical group 0.000 abstract description 5
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 187
- 239000000203 mixture Substances 0.000 description 20
- 238000004321 preservation Methods 0.000 description 18
- 229920000139 polyethylene terephthalate Polymers 0.000 description 16
- 239000005020 polyethylene terephthalate Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- -1 polyethylene terephthalate Polymers 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 4
- 238000007385 chemical modification Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000010920 waste tyre Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 244000208060 Lawsonia inermis Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The application discloses an SBS resin modified asphalt waterproof material and a preparation method thereof, and a waterproof coiled material and a preparation method thereof. The waterproof material comprises 100 parts by weight of 90# asphalt, 9.5-12 parts by weight of asphalt softening oil, 3-5 parts by weight of SBS resin, 40-50 parts by weight of rubber powder, 50-60 parts by weight of powder, 0.5-1.5 parts by weight of hindered amine auxiliary agent and 0.5-1.5 parts by weight of active hydrogen auxiliary agent. The SBS resin modified asphalt waterproof material is added with hindered amine and active hydrogen auxiliary agents on the basis of a basic formula to slow down the aging of the SBS waterproof coiled material. The active groups of the hindered amine auxiliary substances can be subjected to crosslinking and grafting reaction with hetero atoms and active groups in the asphalt, so that the compatibility of the asphalt and SBS resin is improved; the SBS resin molecular chain segments dispersed in the asphalt form a three-dimensional network structure in a chemical bond mode, and the asphalt has better high-temperature performance. The active hydrogen auxiliary agent consumes some oxygen-containing free radicals generated in the asphalt aging process to prevent the asphalt from oxidizing.
Description
Technical Field
The application belongs to the technical field of building waterproof materials, and particularly relates to an SBS resin modified asphalt waterproof material and a preparation method thereof, a waterproof coiled material and a preparation method thereof.
Background
The SBS material is Styrene-Butadiene-Styrene (Styrene-Butadiene-Styrene) block copolymer, and is a thermoplastic elastomer modifier.
From the modification point of view, the traditional SBS waterproof coiled material is only mechanically dispersed and wrapped with the asphalt, and no chemical reaction occurs, which is related to the large difference of the properties of the density, the polarity, the molecular weight, the solubility parameters and the like of the SBS and the asphalt. Meanwhile, as shown in FIG. 1, the b segment in the SBS polymer contains more double bonds, so that the chemical property of the SBS polymer is relatively active, and the aging resistance to oxygen, ozone and ultraviolet light is poor. In the aging process of the SBS coiled material, the SBS is hardly prevented from being separated from asphalt. Therefore, the traditional SBS waterproof coiled material has the advantages that the ageing process of the coiled material is faster in the storage process, and the coiled material is placed in a warehouse or a stone site for a period of time, so that some important indexes such as low-temperature flexibility and unqualified joint peeling strength are caused.
Disclosure of Invention
The embodiment of the application provides a preparation method of an SBS resin modified asphalt waterproof material, wherein hindered amine and active hydrogen auxiliary agents are added on the basis of a basic formula, and chemical modification is started, so that under the action of the two auxiliary agents, the polar part between asphalt and SBS is increased by utilizing the characteristics that the two auxiliary agents can be subjected to chemical reactions such as crosslinking, grafting and the like with hetero atoms and active groups in asphalt, and the compatibility between SBS and asphalt is increased. Meanwhile, due to the chemical bonding effect, a strong three-dimensional network structure is formed between SBS molecular chain conditions originally dispersed in asphalt in a chemical bond mode, and a chemical network structure formed by an integral structure mutually penetrating with asphalt is formed, so that the structure is not easy to break under the effects of force, heat, light and oxygen, and on the other hand, active hydrogen can consume oxygen free radicals or peroxy free radicals for accelerating the aging of asphalt.
In a first aspect, the present application provides an SBS resin modified asphalt waterproofing material comprising:
100 parts by weight of 90# asphalt,
9.5 to 12 parts by weight of asphalt softening oil based on 100 parts by weight of 90# asphalt;
3 to 5 parts by weight of SBS resin based on 100 parts by weight of 90# asphalt;
40-50 parts by weight of rubber powder based on 100 parts by weight of 90# asphalt;
50 to 60 parts by weight of powder based on 100 parts by weight of 90# asphalt; and
0.5 to 1.5 parts by weight of a hindered amine auxiliary agent based on 100 parts by weight of 90# asphalt;
and 0.5 to 1.5 parts by weight of an active hydrogen auxiliary agent based on 100 parts by weight of 90# asphalt.
In one embodiment of the present application, the hindered amine is selected from the group consisting of antioxidant 5067, antioxidant 5057, or a combination thereof.
In one embodiment of the present application, the active hydrogen-based auxiliary is selected from the group consisting of beta-ketoester compounds.
In one embodiment of the present application, the beta-ketoester compound is selected from diethyl malonate, dibutyl malonate, diphenyl malonate, or a combination thereof.
In one embodiment of the present application, the pitch softening oil is selected from naphthenic oil, soybean oil, aromatic oil, or a combination thereof; and/or
The SBS resin is of a linear structure, wherein the weight content of the styrene is 20-30%, and the weight average molecular weight of the SBS resin is 150000 ～ 450000; and/or
The rubber powder is 60-80 mesh tire rubber powder, wherein the rubber content is 30-60% and the ash content is 10-40%; tire rubber powder refers to a crushed material of waste tires; and/or
The powder is heavy calcium powder or talcum powder, and the particle size of the powder is 100-200 meshes.
In a second aspect, the present application provides a method for preparing the above SBS resin modified asphalt waterproof material, the method comprising:
the step of melting asphalt comprises the steps of mixing 90# asphalt and asphalt softening oil according to a set proportion, uniformly stirring, and heating to obtain molten asphalt;
adding SBS resin, including adding SBS resin into melted asphalt, heating to obtain SBS resin modified asphalt;
adding rubber powder into SBS resin modified asphalt, and dispersing the rubber powder until the rubber powder is uniform to obtain asphalt containing the rubber powder;
adding powder, namely adding the powder into asphalt containing rubber powder, shearing and dispersing the asphalt until the asphalt is uniform to obtain asphalt containing the powder;
adding a modifier, namely adding a hindered amine auxiliary agent and an active hydrogen auxiliary agent into asphalt containing powder, and shearing and dispersing to obtain the SBS resin modified asphalt waterproof material.
In the present application, the ratio set for the 90# asphalt and the asphalt softening oil refers to the ratio of the 90# asphalt and the asphalt softening oil in the SBS resin modified asphalt waterproofing material.
Aiming at the problems of poor compatibility between asphalt and SBS resin in the SBS waterproof coiled material, poor aging performance and the like, the hindered amine auxiliary agent and the active hydrogen auxiliary agent are added on the basis of a basic formula, and the chemical modification is started, on one hand, the added hindered amine auxiliary agent substance has more active groups and can be subjected to crosslinking and grafting reaction with hetero atoms and active groups in the asphalt, so that the compatibility between the asphalt and the SBS resin is increased; meanwhile, due to the chemical bonding effect, the SBS resin molecular chain segments of the raw materials dispersed in the asphalt form a three-dimensional network structure in a chemical bond mode, and oxygen-containing functional groups on the surface of the asphalt can be subjected to chemical reaction, so that the space network structure is more stable, and better high-temperature performance is shown. On the other hand, the asphalt generates oxygen free radicals or peroxy free radicals in the aging process, and the active hydrogen auxiliary agent can consume some oxygen free radicals generated in the aging process of the asphalt, so that further oxidization of the asphalt is prevented. Therefore, the synergistic effect of the two auxiliary agents can achieve the effect of delaying the aging of the SBS waterproof coiled material.
In one embodiment of the present application, the step of melting the asphalt comprises mixing the 90# asphalt with the asphalt softening oil at a ratio of 100 parts by weight to 9.5 parts by weight to 12 parts by weight at a dispersing shear speed of 1000rpm to 1200 rpm.
In one embodiment of the present application, the step of melting the asphalt is performed at a temperature of 130 ℃ to 150 ℃.
In one embodiment of the present application, the step of adding the SBS resin includes adding 3 to 5 parts by weight of the SBS resin to the molten asphalt at a dispersion shear rate of 1000 to 1200 rpm.
In one embodiment of the present application, the step of adding SBS resin includes heating to 160℃to 180℃and maintaining the temperature for 1 hour to 1.5 hours to obtain SBS resin modified asphalt.
In one embodiment of the present application, the step of adding the rubber powder comprises adding 40 to 50 parts by weight of the rubber powder to the SBS resin modified asphalt at a dispersion shear rate of 1000 to 1200 rpm.
In one embodiment of the present application, the step of adding the rubber powder includes adding the rubber powder, then heating to 180-190 ℃, and shearing and dispersing for 3-4 hours to obtain asphalt containing the rubber powder when the material is in a hot state.
In one embodiment of the present application, the step of adding the powder includes adding 50 to 60 parts by weight of the powder to the asphalt containing the rubber powder at a dispersion shear rate of 1000 to 1200 rpm.
The step of adding the powder in one embodiment of the present application includes maintaining the temperature of 180-190 ℃ after adding the powder, and shearing and dispersing for 1-2 hours to obtain asphalt containing the powder.
In one embodiment of the present application, the step of adding the modifier comprises adding 0.5 to 1.5 parts by weight of the hindered amine auxiliary agent and 0.5 to 1.5 parts by weight of the active hydrogen auxiliary agent to the asphalt containing the powder at a dispersing shear speed of 1000 to 1200 rpm.
In one embodiment of the present application, the step of adding the modifier includes maintaining the constant temperature at 180 ℃ after adding the modifier, and shearing and dispersing for 0.5 to 1.0 hour to obtain the SBS resin modified asphalt waterproof material.
In a third aspect, the present application provides an SBS resin modified asphalt waterproof roll, comprising:
a host substrate;
the SBS resin modified asphalt waterproof material coated on at least one side surface of the main body base material;
and the isolation protection layer is pressed on the surface of one side of the SBS resin modified asphalt waterproof material, which is far away from the main body substrate.
In an embodiment of the present application, the main substrate is selected from a polyester tire, a glass fiber tire, or a composite tire composed of the same, that is, the main substrate may be a carcass made of a polyester material for coating an SBS resin modified asphalt waterproof material, or a carcass made of a glass fiber material for coating an SBS resin modified asphalt waterproof material, or a composite carcass made of a combination of a polyester material and a glass fiber material.
Illustratively, the body reinforcement material is a glass fiber reinforced polyester tire.
Wherein, the thickness of SBS resin modified asphalt waterproof material on the main body substrate can be adjusted to the required thickness according to the requirement.
In one embodiment of the present application, the thickness of the SBS resin-modified asphalt waterproof material is 3.0 mm to 5.0 mm.
In one embodiment of the application, the isolation protection layer is a single-sided release film made of transparent PET, the thickness of the single-sided release film is 0.035-0.080 mm, the single-sided release film is coated by solvent-free silicone oil, and the release force is 0.1N/25-0.5N/25 mm. Or the isolating protective layer is a PET composite film.
In a fourth aspect, the present application provides a method for preparing an SBS resin modified asphalt waterproof roll, including:
providing a SBS resin modified asphalt waterproof material in a thermal state, a main body base material and an isolation protective layer;
coating at least one side surface of a main substrate with the SBS resin modified asphalt waterproof material in a thermal state;
adjusting the thickness of the SBS resin modified asphalt waterproof material;
and placing the isolation protection layer on the surface of one side of the SBS resin modified asphalt waterproof material, which is far away from the main body base material, and cooling to obtain the SBS resin modified asphalt waterproof coiled material.
In the embodiment of the application, the preparation method of the SBS resin modified asphalt waterproof coiled material is characterized in that the isolation protection layers are extruded by heavy metal compression rollers to the SB modified asphalt waterproof material, and the isolation protection layers are respectively pressed on the surface of one side of the SBS resin modified asphalt waterproof material, which is far away from the main body base material.
According to the preparation method of the SBS resin modified asphalt waterproof material, based on a basic formula, hindered amine and active hydrogen auxiliary agents are added, and on the one hand, the hindered amine auxiliary agents are added with more active groups in terms of chemical modification, and can react with hetero atoms and active groups in asphalt in a crosslinking and grafting manner, so that the compatibility of asphalt and SBS resin is increased, meanwhile, due to the chemical bonding effect, the SBS resin molecular chain segments of raw materials dispersed in the asphalt form a three-dimensional network structure in the form of chemical bonds, oxygen-containing functional groups on the surface of the asphalt can be subjected to chemical reaction, so that the space network structure is more stable, and better high-temperature performance is shown. On the other hand, the asphalt generates oxygen free radicals or peroxy free radicals in the aging process, and the active hydrogen auxiliary agent can consume some oxygen free radicals generated in the aging process of the asphalt, so that further oxidization of the asphalt is prevented. Therefore, the synergistic effect of the two auxiliary agents can achieve the effect of delaying the aging of the SBS waterproof coiled material.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
FIG. 1 is a schematic molecular structure of SBS resin;
fig. 2 is a schematic flow chart of a preparation method of an SBS resin modified asphalt waterproof material according to an embodiment of the present application;
fig. 3 is a schematic structural view of an SBS resin-modified asphalt waterproof roll according to another embodiment of the present application.
Reference numerals illustrate:
1. a host substrate; 2. SBS resin modified asphalt waterproof material layer; 3. and an isolation protection layer.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative of the application and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In order to solve the problems in the prior art, the embodiment of the application provides an SBS resin modified asphalt waterproof material. The SBS resin-modified asphalt waterproof material provided in the examples of the present application will be described first.
Embodiments of the present application provide an SBS resin modified asphalt waterproof material, comprising:
100 parts by weight of 90# asphalt,
9.5 to 12 parts by weight of asphalt softening oil based on 100 parts by weight of 90# asphalt;
3 to 5 parts by weight of SBS resin based on 100 parts by weight of 90# asphalt;
40-50 parts by weight of rubber powder based on 100 parts by weight of 90# asphalt;
50 to 60 parts by weight of powder based on 100 parts by weight of 90# asphalt; and
0.5 to 1.5 parts by weight of a hindered amine auxiliary agent based on 100 parts by weight of 90# asphalt;
and 0.5 to 1.5 parts by weight of an active hydrogen auxiliary agent based on 100 parts by weight of 90# asphalt.
In embodiments of the present application, the active hydrogen-based auxiliary is selected from the group consisting of beta-ketoester compounds.
In embodiments of the present application, the beta-ketoester compound is selected from diethyl malonate, dibutyl malonate, diphenyl malonate, or a combination thereof.
The hindered amine auxiliary agent is selected from an antioxidant 5067, an antioxidant 5057 or a combination thereof; and/or
In embodiments of the present application, the pitch softening oil is selected from naphthenic oils, soybean oils, aromatic oils, or combinations thereof; and/or
The SBS resin is of a linear structure, the weight content of the styrene is 20-30%, and the weight average molecular weight is 150000 ～ 450000; and/or
The rubber powder is 60-80 mesh tire rubber powder, wherein the rubber content is 30-60% and the ash content is 10-40%; tire rubber powder refers to a crushed material of waste tires; and/or
The powder is heavy calcium powder or talcum powder, and the particle size of the powder is 100-200 meshes; and/or
Fig. 2 shows a schematic flow chart of a preparation method of the SBS resin modified asphalt waterproof material according to an embodiment of the present application.
As shown in fig. 2, the present application provides a method for preparing an SBS resin modified asphalt waterproof material, the method comprising:
s1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a set proportion, uniformly stirring, and heating to obtain molten asphalt;
s2, adding SBS resin, namely adding SBS resin into the molten asphalt, and heating to react to obtain SBS resin modified asphalt;
s3, adding rubber powder, namely adding the rubber powder into SBS resin modified asphalt, and dispersing until the rubber powder is uniform so as to obtain asphalt containing the rubber powder;
s4, adding powder, namely adding the powder into asphalt containing rubber powder, and shearing and dispersing until the powder is uniform to obtain asphalt containing the powder;
s5, adding a modifier, namely adding a hindered amine auxiliary agent and an active hydrogen auxiliary agent into the asphalt containing the powder, and shearing and dispersing to obtain the SBS resin modified asphalt waterproof material.
In one embodiment of the present application, the step of obtaining the molten asphalt comprises mixing 90# asphalt with asphalt softening oil at a preset ratio of 100 parts by weight to 9.5 parts by weight to 12 parts by weight at a dispersion shear speed of 1000rpm to 1200 rpm.
In one embodiment of the present application, the step of adding the SBS resin includes adding 3 to 5 parts by weight of the SBS resin to the molten asphalt at a dispersion shear rate of 1000 to 1200 rpm.
In one embodiment of the present application, the step of adding the rubber powder comprises adding 40 to 50 parts by weight of the rubber powder to the SBS resin modified asphalt at a dispersion shear rate of 1000 to 1200 rpm.
In one embodiment of the present application, the step of adding the powder includes adding 50 to 60 parts by weight of the powder to the asphalt containing the rubber powder at a dispersion shear rate of 1000 to 1200 rpm.
In one embodiment of the present application, the step of adding the modifier comprises adding 0.5 to 1.5 parts by weight of the hindered amine auxiliary agent and 0.5 to 1.5 parts by weight of the active hydrogen auxiliary agent to the asphalt containing the powder at a dispersing shear speed of 1000 to 1200 rpm.
The application provides an SBS resin modified asphalt waterproof coiled material, as shown in FIG. 3, comprising:
a main body base material 1;
the SBS resin modified asphalt waterproof material coated on at least one side surface of the main body substrate 1 forms an SBS resin modified asphalt waterproof material layer 2;
and the isolation protective layer 3 is pressed on the surface of one side of the SBS resin modified asphalt waterproof material, which is away from the main body base material.
In one embodiment of the present application, the two ends of the isolation protection layer 3 are in sealing connection with the main substrate 1, so as to protect the SBS resin modified asphalt waterproof material and reduce oxidation before being used as a waterproof coiled material product. In fig. 3, the structure among the main body base material 1, the SBS resin modified asphalt waterproof material layer 2 and the isolation protection layer 3 is clarified, and two ends are in unsealed connection. The SBS resin modified asphalt waterproof material layer 2 in fig. 3 is provided only on the upper surface of the main body base material 1. In other embodiments, the SBS resin modified asphalt waterproof material layer 2 is provided on both the upper and lower side surfaces of the main body base material 1.
In one embodiment of the present application, the host substrate is selected from polyester batting, fiberglass batting, or a combination thereof.
Illustratively, the host substrate is a glass fiber reinforced polyester tire.
In one embodiment of the present application, the SBS resin modified asphalt waterproof material has a thickness value of 3.0 mm to 5.0 mm.
In an embodiment of the present application, the isolation protection layer is a single-sided release film made of transparent PET, or the isolation protection layer is a PET composite film. The thickness of the single-sided release film is 0.035-0.080 mm, the release force is 0.1N/25-0.5N/25 mm after the single-sided release film is coated by solvent-free silicone oil.
The preparation method of the SBS resin modified asphalt waterproof coiled material comprises the following steps:
providing a SBS resin modified asphalt waterproof material in a thermal state to coat at least one side surface of a main base material;
and placing the isolation protection layer on the surface of one side of the SBS resin modified asphalt waterproof material, which is far away from the main body base material, and cooling to obtain the SBS resin modified asphalt waterproof coiled material.
The hot SBS resin modified asphalt waterproof material is prepared by the method that the temperature of the prepared hot SBS resin modified asphalt waterproof material is more than or equal to 165 ℃, namely the coating temperature of the SBS resin modified material is not lower than 165 ℃. The thickness of the SBS resin modified asphalt waterproof material can be adjusted according to the requirement.
The present application is further illustrated by the specific examples below, which are the components/materials and their commercial models/brands and available sources used in the examples of the present application.
Naphthenic oil, brand KN4006, purchased from Heshui Zuo Lubricant Co., ltd;
aromatic oil, purchased from henna, inc;
soybean oil, reagent grade, purchased from Shanghai Ala Biochemical technologies Co., ltd;
SBS resin, available from Baling petrochemical company;
rubber powder, available from the co-available company, rayleigh;
powder, talc, from omega company;
an isolation protective layer and a single-sided release film made of PET material with the thickness of 0.035 mm.
Example 1
The embodiment provides an SBS resin modified asphalt waterproof coiled material, which comprises a main body base material 1, SBS resin modified waterproof materials covered on the upper side and the lower side of the main body base material, and an isolation protection layer 3 covered on the outer side of an SBS resin modified waterproof material layer 2, wherein the isolation protection layer 3 is a single-sided release film made of PET material with the thickness of 0.03 mm; the SBS resin modified asphalt waterproof material comprises:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and keeping the temperature for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃, and preserving heat for 1.5h at 1000rpm to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the SBS resin modified asphalt obtained in the step A2 after heat preservation according to the proportion, heating to 170-180 ℃, and shearing and dispersing for 2.5 hours at the temperature at the rotating speed of 1000rpm to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5, adding a modifier, namely adding 0.5 part by weight of hindered amine auxiliary agent and 0.5 part by weight of active hydrogen auxiliary agent into the asphalt containing the powder in the step A4, keeping the constant temperature at 180 ℃, and shearing and dispersing for 0.5 hour at 1000rpm to obtain the SBS resin modified asphalt waterproof material.
Example 2
The embodiment provides an SBS resin modified asphalt waterproof coiled material, which comprises a main body substrate, SBS resin modified asphalt waterproof materials covered on the upper side and the lower side of the main body substrate, and an isolation protection layer covered on the outer layer of the SBS resin modified asphalt waterproof materials, wherein the isolation protection layer is a single-sided release film made of PET (polyethylene terephthalate) material with the thickness of 0.03 mm; the SBS resin modified asphalt waterproof material comprises:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and keeping the temperature for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃, and preserving heat for 1.5h at 1000rpm to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the SBS resin modified asphalt obtained in the step A2 after heat preservation according to a proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at a rotating speed of 1000rpm for 2.5 hours to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain asphalt containing the powder;
and A5, adding a modifier, namely adding 0.5 part by weight of hindered amine auxiliary agent and 0.75 part by weight of active hydrogen auxiliary agent into the asphalt containing the powder in the step A4, keeping the constant temperature at 180 ℃, and shearing and dispersing for 0.5 hour at 1000rpm to obtain the SBS resin modified asphalt waterproof material.
Example 3
The embodiment provides an SBS resin modified asphalt waterproof coiled material, which comprises a main body substrate, SBS resin modified asphalt waterproof materials covered on the upper side and the lower side of the main body substrate, and an isolation protection layer covered on the outer layer of the SBS resin modified asphalt waterproof materials, wherein the isolation protection layer is a single-sided release film made of PET (polyethylene terephthalate) material with the thickness of 0.03 mm; the SBS resin modified asphalt waterproof material comprises:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and keeping the temperature for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃ and preserving heat for 1.5h to obtain SBS resin modified asphalt;
a3, adding rubber powder into the mixture subjected to the heat preservation in the step A2 according to the proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at the rotating speed of 1000rpm for 2.5h;
a4, adding talcum powder into the mixture subjected to shearing dispersion in the step A3, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ and the rotating speed of 1000rpm so as to obtain asphalt containing powder;
and A5, adding 0.75 part by weight of hindered amine compound and 1 part by weight of active hydrogen compound into the A4, keeping the constant temperature at 180 ℃, and shearing and dispersing for 0.5 hour at 1000rpm to obtain the modified asphalt coating material.
Example 4
The embodiment provides an SBS resin modified asphalt waterproof coiled material, which comprises a main body substrate, SBS resin modified asphalt waterproof materials covered on the upper side and the lower side of the main body substrate, and an isolation protection layer covered on the outer layer of the SBS resin modified asphalt waterproof materials, wherein the isolation protection layer is a single-sided release film made of PET (polyethylene terephthalate) material with the thickness of 0.03 mm; the SBS resin modified asphalt waterproof material comprises:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and keeping the temperature for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃, and preserving heat for 1.5h at 1000rpm to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the SBS resin modified asphalt obtained in the step A2 after heat preservation according to the proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at the rotating speed of 1000rpm for 2.5h to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5, adding a modifier, namely adding 0.75 part by weight of hindered amine auxiliary agent and 1 part by weight of active hydrogen auxiliary agent into the asphalt containing powder of A4, keeping the constant temperature at 180 ℃, and shearing and dispersing for 0.5 hour at 1000rpm to obtain the SBS resin modified asphalt waterproof material.
Example 5
The embodiment provides an SBS resin modified asphalt waterproof coiled material, which comprises a main body substrate, SBS resin modified waterproof materials covered on the upper side and the lower side of the main body substrate, and an isolation protection layer covered on the outer layer of the SBS resin modified waterproof materials, wherein the isolation protection layer is a single-sided release film made of PET (polyethylene terephthalate) with the thickness of 0.03 mm; the SBS resin modified asphalt waterproof material comprises:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and keeping the temperature for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃ and preserving heat for 1.5h to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the SBS resin modified asphalt obtained in the step A2 after heat preservation according to a proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at a rotating speed of 1000rpm for 2.5 hours to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5, adding a modifier, namely adding 1 part by weight of hindered amine auxiliary agent and 1 part by weight of active hydrogen auxiliary agent into the asphalt containing the powder in the step A4, keeping the constant temperature at 180 ℃, and shearing and dispersing for 0.5 hour at 1000rpm to obtain the SBS resin modified asphalt waterproof material.
Example 6
The embodiment provides an SBS resin modified asphalt waterproof coiled material, which comprises a main body substrate, SBS resin modified asphalt waterproof materials covered on the upper side and the lower side of the main body substrate, and an isolation protection layer covered on the outer layer of the SBS resin modified asphalt waterproof materials, wherein the isolation protection layer is a single-sided release film made of PET (polyethylene terephthalate) with the thickness of 0.03 mm; the SBS resin modified asphalt waterproof material comprises:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and asphalt softening oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and keeping the temperature for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃, and preserving heat for 1.5h at 1000rpm to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the mixture subjected to the heat preservation in the step A2 according to the proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at the rotating speed of 1000rpm for 2.5 hours to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5 adding a modifier, namely adding 1.5 parts by weight of hindered amine auxiliary agent and 1.5 parts by weight of active hydrogen auxiliary agent into the asphalt containing powder of A4, keeping the constant temperature at 180 ℃, and shearing and dispersing for 0.5 hour at 1000rpm to obtain the SBS resin modified asphalt waterproof material.
Comparative example 1
The present comparative example differs from example 5 in that only a hindered amine-type auxiliary agent was added to the SBS resin-modified asphalt waterproofing material, but other materials used the same rubber parts by weight as in example 5, specifically, the SBS resin-modified asphalt waterproofing material included:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and softened oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and preserving heat for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃ and preserving heat for 1.5h to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the asphalt containing the SBS resin modifier obtained in the step A2 after heat preservation according to a proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at a rotating speed of 1000rpm for 2.5 hours to obtain asphalt containing powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5, adding a modifier, namely adding 1 part by weight of hindered amine auxiliary agent into the asphalt containing the powder in the A4, keeping the constant temperature at 180 ℃, and shearing and dispersing at 1000rpm for 0.5 hour to obtain the SBS resin modified asphalt waterproof material.
Comparative example 2
The present comparative example differs from example 5 in that only an active hydrogen-based auxiliary agent was added to the SBS resin-modified asphalt waterproofing material, but other materials used the same rubber parts by weight as in example 5, specifically, the SBS resin-modified asphalt waterproofing material comprising:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and softened oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and preserving heat for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃, and preserving heat for 1.5h at 1000rpm to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the SBS resin modified asphalt obtained in the step A2 after heat preservation according to a proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at a rotating speed of 1000rpm for 2.5 hours to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5, adding a modifier, namely adding 1 part by weight of active hydrogen auxiliary agent into the asphalt containing the powder in the A4, keeping the constant temperature at 180 ℃, and shearing and dispersing at 1000rpm for 0.5 hour to obtain the SBS resin modified asphalt waterproof material.
Comparative example 3
The present comparative example differs from example 5 in that neither hindered amine-type auxiliary nor active hydrogen-type auxiliary was added to the SBS resin-modified asphalt waterproofing material, but the other materials used the same rubber parts by weight as in example 5, specifically, the SBS resin-modified asphalt waterproofing material included:
the SBS resin modified asphalt waterproof material is prepared by the following method, and comprises the following steps:
a1, melting asphalt, namely mixing 90# asphalt and softened oil according to a proportion, keeping stirring the mixture at a rotating speed of 1000rpm, heating to 140-145 ℃, and preserving heat for 1.5h until the asphalt is completely melted to obtain melted asphalt;
a2, adding SBS resin, namely adding SBS resin into the molten asphalt obtained in the step A1 after heat preservation according to the proportion, heating to 170-180 ℃, and preserving heat for 1.5h at 1000rpm to obtain SBS resin modified asphalt;
a3, adding rubber powder, namely adding the rubber powder into the SBS resin modified asphalt obtained in the step A2 after heat preservation according to a proportion, heating to 170-180 ℃, and shearing and dispersing the mixture at the temperature at a rotating speed of 1000rpm for 2.5 hours to obtain asphalt containing the rubber powder;
a4, adding powder, namely adding talcum powder serving as powder into the asphalt containing the rubber powder after shearing and dispersing in the step A3 according to a proportion, shearing and dispersing for 1.5 hours at the temperature of 180-190 ℃ at the rotating speed of 1000rpm to obtain the asphalt containing the powder;
and A5, adding a modifier, namely adding 1 part by weight of active hydrogen auxiliary agent into the asphalt containing the powder in the A4, keeping the constant temperature at 180 ℃, and shearing and dispersing at 1000rpm for 0.5 hour to obtain the SBS resin modified asphalt waterproof material.
The SBS resin-modified asphalt waterproofing materials of examples 1 to 6 and comparative examples 1 to 3 were basically identical in structure to example 1 in that the contents of the respective components other than 90# asphalt were calculated based on 100 parts by weight of 90# asphalt, and the SBS resin-modified asphalt waterproofing rolls of examples 2 to 6 and comparative examples 1 to 3 were prepared.
Performance testing
The following performance tests were performed on the SBS resin-modified asphalt waterproof rolls of examples 1 to 6 and comparative examples 1 to 3, respectively, and then the performance of the SBS resin-modified asphalt waterproof rolls of the respective examples and comparative examples was recorded in table 1 below for comparison.
1. Ageing Performance test
The aging conditions used were forced air oven heat aging at 80 ℃ for 10 days and 20 days, and the test results are recorded in table 1.
2. Low temperature flexibility performance test
The low temperature flexibility test method used was a sample preparation and limit test of the low temperature flexibility of the material according to the national standard GB/T328-2007, experimental method for building waterproof rolls, section 14, and the test results are recorded in Table 1.
3. Peel strength test
The joint peeling strength test method is used for sample preparation and test according to the 20 th part of the national standard GB/T328-2007 building waterproof coiled material experiment method. Wherein the seam peel strength was averaged, and the test results are recorded in table 1 below.
Table 1 table of test data for SBS resin-modified asphalt waterproof rolls of examples 1 to 6 and comparative examples 1 to 3 of the present application
As is clear from comparison of the test results of comparative examples 1-3 and examples 1-6, the low temperature before SBS aging is only-27 ℃ without adding the hindered amine auxiliary agent and the active hydrogen auxiliary agent, the low temperature before aging is-29 ℃ when one of the hindered amine auxiliary agent and the active hydrogen auxiliary agent is independently added, the low temperature without treatment can reach-35 ℃ and the low temperature after aging for 10 days is only attenuated by 5 ℃ and the aging for 20 days is attenuated by 8 ℃, and the change of the seam stripping value after aging for 14 days without treatment is not obvious and the attenuation amplitude is obviously reduced.
When the two types of auxiliary agents selected in the application are used, when the addition amount is 1 part by weight of the hindered amine auxiliary agent and 1 part by weight of the active hydrogen auxiliary agent, the low temperature can reach minus 35 ℃, the low temperature limit is minus 27 ℃ after aging for 20 days, and the simultaneous addition effect of the two types of auxiliary agents is obviously better than that of independently adding one of the two types of auxiliary agents, on one hand, the hindered amine auxiliary agent substances are added with more active groups and can react with hetero atoms and active groups in asphalt in a crosslinking and grafting manner, so that the compatibility of the asphalt and SBS is increased, and meanwhile, due to the chemical bonding effect, the three-dimensional network structure is formed between SBS molecular chain segments originally dispersed in the asphalt in a chemical bond mode, the oxygen-containing functional groups on the surface of the asphalt can react chemically, so that the spatial network structure is more stable, and the better low-temperature performance is shown. On the other hand, oxygen free radicals or peroxy free radicals and the like in the aging process of the asphalt, and the active hydrogen auxiliary agent can consume some oxygen free radicals which cause the aging of the asphalt, thereby preventing the further oxidation of the asphalt. Therefore, the synergistic effect of the two auxiliary agents can achieve the effect of delaying the aging of the SBS resin modified asphalt waterproof coiled material.
The SBS resin modified asphalt waterproof coiled material is tested according to the national standard GB 18242-2017, and compared with the existing SBS resin modified asphalt waterproof coiled material, the low-temperature performance is reduced by about 5 ℃, so that the SBS resin modified asphalt waterproof coiled material has better low-temperature performance and can be used at lower temperature.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, which are intended to be included in the scope of the present application.
Claims (7)
1. An SBS resin modified asphalt waterproof material, characterized by comprising:
100 parts by weight of 90# asphalt,
9.5 to 12 parts by weight of asphalt softening oil based on 100 parts by weight of 90# asphalt;
3 to 5 parts by weight of SBS resin based on 100 parts by weight of 90# asphalt;
40-50 parts by weight of rubber powder based on 100 parts by weight of 90# asphalt;
50 to 60 parts by weight of powder based on 100 parts by weight of 90# asphalt; and
0.5 to 1.5 parts by weight of a hindered amine auxiliary agent based on 100 parts by weight of 90# asphalt;
and 0.5 to 1.5 parts by weight of an active hydrogen auxiliary agent based on 100 parts by weight of 90# asphalt, wherein the active hydrogen auxiliary agent is selected from diethyl malonate, dibutyl malonate, diphenyl malonate or a combination thereof.
2. The water resistant material of claim 1, wherein the hindered amine adjuvant is selected from the group consisting of antioxidants 5067, 5057, or a combination thereof.
3. The water repellent material according to claim 1 or 2, wherein the pitch softening oil is selected from naphthenic oil, soybean oil, aromatic oil or a combination thereof; and/or
The SBS resin is of a linear structure, wherein the weight content of styrene is 20% -30%, and the weight average molecular weight of the SBS resin is 150000 ～ 450000; and/or
The rubber powder is 60-80 mesh tire rubber powder, wherein the rubber content is 30-60% and the ash content is 10-40%; and/or
The powder is heavy calcium powder or talcum powder, and the particle size of the powder is 100-200 meshes.
4. A method for preparing the SBS resin-modified asphalt waterproofing material according to any one of claims 1 to 3, comprising:
the step of melting asphalt comprises the steps of mixing 90# asphalt and asphalt softening oil according to a set proportion, uniformly stirring, and heating to obtain molten asphalt;
adding SBS resin, namely adding SBS resin into the melted asphalt, and heating to react to obtain SBS resin modified asphalt;
adding rubber powder into SBS resin modified asphalt, and dispersing the rubber powder until the rubber powder is uniform to obtain asphalt containing the rubber powder;
adding powder, namely adding the powder into asphalt containing rubber powder, shearing and dispersing the asphalt until the asphalt is uniform to obtain asphalt containing the powder;
adding a modifier, namely adding a hindered amine auxiliary agent and an active hydrogen auxiliary agent into asphalt containing powder, and shearing and dispersing to obtain the SBS resin modified asphalt waterproof material.
5. The method according to claim 4, wherein the step of melting the asphalt comprises mixing 90# asphalt with asphalt softening oil at a ratio of 100 parts by weight to 9.5 parts by weight to 12 parts by weight at a dispersion shear rate of 1000rpm to 1200 rpm; and/or
The step of adding SBS resin comprises adding 3 to 5 parts by weight of SBS resin into molten asphalt at a dispersing and shearing speed of 1000 to 1200 rpm; and/or
The step of adding the rubber powder comprises the step of adding 40-50 parts by weight of the rubber powder into asphalt containing the SBS resin modifier at a dispersing and shearing rotation speed of 1000-1200 rpm; and/or
The step of adding the powder comprises the step of adding 50-60 parts by weight of the powder into asphalt containing rubber powder at a dispersing and shearing rotating speed of 1000-1200 rpm; and/or
The step of adding the modifier comprises the step of adding 0.5 to 1.5 parts by weight of hindered amine auxiliary agent and 0.5 to 1.5 parts by weight of active hydrogen auxiliary agent into the asphalt containing powder at a dispersing and shearing speed of 1000 to 1200 rpm.
6. An SBS resin modified asphalt waterproof roll, characterized by comprising:
a host substrate;
the SBS resin-modified asphalt waterproofing material according to any one of claims 1 to 3 coated on at least one side of the main substrate;
the isolation protection layer is pressed on one side surface of the SBS resin modified asphalt waterproof material, which is away from the main body base material.
7. A method for preparing the SBS resin-modified asphalt waterproof roll according to claim 6, comprising:
providing the SBS resin-modified asphalt waterproofing material and host substrate in a thermal state according to any one of claims 1 to 3, and an insulating protective layer;
coating the SBS resin modified asphalt waterproof material in a thermal state on at least one side surface of the main base material;
and placing the isolation protection layer on the surface of one side of the SBS resin modified asphalt waterproof material, which is away from the main body substrate, and cooling to obtain the SBS resin modified asphalt waterproof coiled material.
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|---|---|---|---|---|
| CN110591618A (en) * | 2019-10-24 | 2019-12-20 | 江苏嘉好热熔胶股份有限公司 | Hot-melt pressure-sensitive adhesive for modifying viscosity of SBS asphalt waterproof coiled material |
| CN114585673A (en) * | 2020-10-09 | 2022-06-03 | 奥升德功能材料运营有限公司 | Asphalt additive |
| CN115403936A (en) * | 2022-06-29 | 2022-11-29 | 科顺防水科技股份有限公司 | SBS modified asphalt waterproof coiled material and preparation method thereof |
-
2023
- 2023-04-18 CN CN202310415994.2A patent/CN116478550B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110591618A (en) * | 2019-10-24 | 2019-12-20 | 江苏嘉好热熔胶股份有限公司 | Hot-melt pressure-sensitive adhesive for modifying viscosity of SBS asphalt waterproof coiled material |
| CN114585673A (en) * | 2020-10-09 | 2022-06-03 | 奥升德功能材料运营有限公司 | Asphalt additive |
| CN115403936A (en) * | 2022-06-29 | 2022-11-29 | 科顺防水科技股份有限公司 | SBS modified asphalt waterproof coiled material and preparation method thereof |
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| CN116478550A (en) | 2023-07-25 |
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