CN114106773A - Modified asphalt mastic, preparation method thereof and wet-laid waterproof coiled material - Google Patents
Modified asphalt mastic, preparation method thereof and wet-laid waterproof coiled material Download PDFInfo
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- CN114106773A CN114106773A CN202111334169.7A CN202111334169A CN114106773A CN 114106773 A CN114106773 A CN 114106773A CN 202111334169 A CN202111334169 A CN 202111334169A CN 114106773 A CN114106773 A CN 114106773A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/346—Applications of adhesives in processes or use of adhesives in the form of films or foils for building applications e.g. wrap foil
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Abstract
The invention provides a modified asphalt mastic, a preparation method thereof and a wet-laid waterproof coiled material, belonging to the technical field of building waterproof materials, wherein the modified asphalt mastic comprises the following raw material components in parts by weight (100 parts by weight): 50-70 parts of asphalt; 3-10 parts of a plasticizer; 2-7 parts of SBS; styrene-butadiene rubber latex and/or chloroprene rubber latex account for 5-20 parts by weight in total; 2-4 parts by weight of chlorinated polyolefin rubber; 3-10 parts of modified rubber powder, wherein the modified rubber powder is rubber powder activated by a modifier and is used for improving the cohesiveness of the modified asphalt rubber; 1-5 parts of biological adhesive; 10-30 parts of filler. The wet-laid waterproof roll containing the modified asphalt mastic can be firmly bonded with a concrete base surface under a high-temperature and high-humidity state for a long time, and has good waterproof and anti-seepage effects.
Description
Technical Field
The invention relates to the technical field of building waterproof materials, in particular to a modified asphalt mastic, a preparation method thereof and a wet-laid waterproof coiled material.
Background
Waterproofing of buildings is an effective method of prolonging the life of a building by reducing or insulating the corrosion of water vapor to the building structure, wherein waterproofing is achieved by applying a layer of waterproof material to the building structure in close association with the building structure, or by enhancing the resistance to leakage. Common waterproof materials include waterproof coiled materials, waterproof coatings, impervious concrete, clay, lime-soil waterproofing and the like. The waterproof coiled material is the most important waterproof material, but the direct dry-process laying of the waterproof coiled material on a concrete base surface easily causes the loose bonding between the coiled material and the concrete and the occurrence of hollowing. Compared with dry construction, wet construction and pre-paving construction are firmly bonded with concrete, and hollowing and falling are not easy to occur under the influence of water vapor after construction. The wet-laid waterproof coiled material is a wet-process construction waterproof coiled material used for non-exposed waterproof engineering.
The modified asphalt mastic is an important material in the wet-laid waterproof coiled material, and the wet-laid waterproof coiled material is bonded with an inorganic silicate base surface by a modified asphalt mastic layer to play a role in waterproofing and impermeability. At present, most of asphalt glue layers of wet-laid waterproof coiled materials on the market have the problem of infirm bonding with a base layer, so that the wet-laid waterproof coiled materials are peeled off in a large area, fall off or have water channeling and the like, and the waterproof effect is lost.
Disclosure of Invention
The invention provides a modified asphalt mastic, a preparation method thereof and a wet-laid waterproof coiled material, and aims to solve the problem that a modified asphalt mastic layer of the wet-laid waterproof coiled material cannot be firmly bonded with a base surface for a long time.
On one hand, the embodiment of the application provides a modified asphalt mastic, which comprises the following raw material components in parts by weight based on 100 parts by weight: 50-70 parts of asphalt; 3-10 parts of a plasticizer; 2-7 parts of SBS; 5-20 parts by weight of styrene-butadiene rubber latex and/or chloroprene rubber latex, wherein the styrene-butadiene rubber latex and the chloroprene rubber latex are measured in terms of wet weight; 2-4 parts by weight of chlorinated polyolefin rubber; 3-10 parts of modified rubber powder, wherein the modified rubber powder is rubber powder activated by a modifier and is used for improving the cohesiveness of the modified asphalt rubber; 1-5 parts of biological adhesive; 10-30 parts of filler.
According to an embodiment of one aspect of the application, the modified asphalt mastic comprises the following raw material components in parts by weight based on 100 parts by weight: 50-60 parts of asphalt; 3-8 parts of a plasticizer; 2-5 parts of SBS; 5-20 parts of styrene-butadiene rubber emulsion and chloroprene rubber emulsion; 2-4 parts by weight of chlorinated polyolefin rubber; 3-7 parts of modified rubber powder; 1-5 parts of biological adhesive; 10-30 parts of filler.
According to an embodiment of one aspect of the application, the modified asphalt mastic comprises the following raw material components in parts by weight based on 100 parts by weight: 55-60 parts of asphalt; 5-8 parts of a plasticizer; 4-5 parts of SBS; 6-12 parts by weight of styrene-butadiene rubber emulsion and chloroprene rubber emulsion; 2-3 parts by weight of chlorinated polyolefin rubber; 5-7 parts of modified rubber powder; 2-5 parts of biological adhesive; 12-20 parts of filler.
According to an embodiment of one aspect of the application, the styrene-butadiene rubber latex and the chloroprene rubber latex are both aqueous or oily latexes with a solid content of 50-75%.
According to an embodiment of one aspect of the present application, the chlorinated polyolefin rubber comprises one or more of chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integral rubber, or chlorinated butyl rubber.
According to an embodiment of one aspect of the application, the chlorinated polyolefin rubber is a mixture of chlorinated butadiene styrene-butadiene rubber, chlorinated butadiene-styrene-isoprene integral rubber and chlorinated butyl rubber in a weight ratio of 2 (1-3) to (2-4).
According to an embodiment of one aspect of the application, the modified rubber powder is one or more of amino modified rubber powder, maleic anhydride grafted modified rubber powder and microbial modified rubber powder.
According to an embodiment of one aspect of the application, the modified rubber powder is a mixture of amino modified rubber powder, maleic anhydride grafted modified rubber powder and microbial modified rubber powder in a weight ratio of 2 (1-3) to 2-4.
In another aspect, embodiments of the present application provide a method for preparing a modified asphalt mastic, including the steps of:
providing raw materials according to the components and the component content; heating and mixing a part of asphalt with the refined modified rubber powder and chlorinated polyolefin to obtain a first mixture;
mixing the remaining portion of bitumen with a plasticizer, and SBS, under heating to obtain a second mixture;
adding the first mixture, and a biological adhesive and a filler to the second mixture, and heating and mixing to obtain a third mixture;
adding styrene-butadiene rubber emulsion and/or chloroprene rubber emulsion into the third mixture, and stirring and mixing to obtain the modified asphalt mastic.
In another aspect, the present application provides a wet-laid waterproof roll, which includes an isolation layer, a polyester tire, and a modified asphalt glue layer including the modified asphalt glue.
Compared with the prior art, the application has at least the following beneficial effects:
the modified asphalt mastic provided by the invention comprises styrene-butadiene rubber latex and/or chloroprene rubber latex, and the styrene-butadiene rubber latex and/or chloroprene rubber latex is combined with asphalt to form a pressure-sensitive adhesive material.
The modified asphalt mastic provided by the invention contains chlorinated polyolefin rubber, the chlorinated polyolefin rubber presents a net structure in the modified asphalt mastic, and asphalt can be wrapped in the net structure when being mutually dissolved with the asphalt, so that the modified asphalt mastic has the following advantages: (1) good low temperature flexibility; (2) the high-temperature fluidity of the asphalt is changed, so that the rubber material has better heat resistance; (3) has good cohesive force to improve the elongation of the sizing material. After chlorinated polyolefin rubber and asphalt are mutually dissolved, the existence of chlorine atoms in chain segments enables the material not to be easily corroded and oxidized by oxygen in the air. Therefore, the modified asphalt glue layer prepared from the modified asphalt glue provided by the invention is applied to the wet-laid waterproof coiled material, so that the wet-laid waterproof coiled material has excellent weather resistance. Meanwhile, the existence of chlorine atoms in the chlorinated polyolefin rubber also endows the surface of the waterproof roll with certain polarity, and the free polar groups on the surface form chelate with inorganic silicate, so that the bonding strength of the waterproof roll and cement mortar is effectively improved.
The modified asphalt glue provided by the invention contains modified rubber powder which is rubber powder activated by a modifier, and the modified rubber powder has partial active groups and can be polymerized with SBS and styrene butadiene rubber in a system, so that a polymer network structure dispersed in a glue stock is more uniform and compact, and the modified asphalt glue has the effect of improving the anti-aging performance; the active group has certain polarity and can form a complex reaction with the silicate with charge, thereby enhancing the bonding property. When the modified asphalt glue layer prepared from the modified asphalt glue provided by the invention is applied to a wet-laid waterproof coiled material, the aging resistance and the cohesiveness of the waterproof coiled material can be improved.
The modified asphalt mastic provided by the invention contains the biological adhesive, and the modified asphalt mastic layer prepared from the modified asphalt mastic containing the biological adhesive is applied to the wet-laid waterproof coiled material, so that the biological adhesive can generate biological adhesion with inorganic silicate on a base surface, and the bonding performance of the wet-laid waterproof coiled material is greatly improved.
The modified asphalt mastic provided by the invention has good cohesiveness and weather resistance through the synergistic cooperation of asphalt, a plasticizer, SBS, styrene butadiene rubber latex and/or chloroprene rubber latex, chlorinated polyolefin rubber, modified rubber powder, a biological adhesive and a filler. The prepared modified asphalt glue layer can be firmly bonded with a concrete base surface into a whole after being applied to a wet-laid waterproof coiled material, can effectively prevent water vapor from corroding the base surface, can keep firm bonding with the base surface for a long time, and reduces the possibility of water channeling; after being soaked in water at the constant temperature of 40 ℃ for 28 days, the peel strength of the concrete still is more than or equal to 2.2N/mm, and the concrete still can be firmly bonded with the concrete under the high-temperature and high-humidity state for a long time, has good waterproof and anti-seepage effects, good weather resistance, environmental friendliness and is suitable for being widely used in the high-temperature and high-humidity environment in the south of China.
Detailed Description
Embodiments of the present application will be described in further detail with reference to examples. The following detailed description of the embodiments is provided to illustrate the principles of the application and is not intended to limit the scope of the application, i.e., the application is not limited to the described embodiments.
Modified asphalt mastic
The embodiment of the first aspect of the application provides a modified asphalt mastic, which comprises the following raw material components in parts by weight based on 100 parts by weight: 50-70 parts of asphalt; 3-10 parts of a plasticizer; 2-7 parts of SBS; 5-20 parts by weight of styrene-butadiene rubber latex and/or chloroprene rubber latex, wherein the styrene-butadiene rubber latex and the chloroprene rubber latex are both calculated by wet weight; 2-4 parts by weight of chlorinated polyolefin rubber; 3-10 parts of modified rubber powder, wherein the modified rubber powder is rubber powder activated by a modifier and is used for improving the cohesiveness of the modified asphalt rubber; 1-5 parts of biological adhesive; 10-30 parts of filler.
According to the modified asphalt mastic, the types and the contents of the components are controlled, so that the components have a synergistic interaction effect, and a waterproof coiled material containing the modified asphalt mastic can be firmly bonded with a base surface for a long time.
According to the embodiment of the invention, the asphalt is used as a base material of the modified asphalt mastic, can be used as a binder of the rest components in the modified asphalt mastic, and provides waterproof and bonding properties for the modified asphalt mastic. The asphalt mainly comprises asphaltene, saturates, aromatics and gums.
In some embodiments, the penetration of the base asphalt ranges from 60(1/10mm) to 300(1/10 mm). The base asphalt in this penetration range has moderate softness and hardness, moderate resistance to shear failure, and good compatibility with the remaining components of the modified asphalt mastic.
In order to improve the properties of the modified asphalt in combination, the asphalt may be, for example, 70# asphalt, 90# asphalt and 200# asphalt. The asphalt of the above grade has excellent comprehensive performances such as anti-slip property, heat resistance and viscosity. Wherein 70#, 90# and 200# represent the grade of the asphalt. In the examples of the present application, the asphalt grade used is graded according to penetration, the grading standards and methods of which are known in the art. It can be understood that, as the grade of the asphalt increases, the penetration degree increases and the low-temperature performance is better; however, as the grade of asphalt decreases, the softening point increases and the heat resistance increases.
For example, the matrix asphalt is 90# asphalt, the softening point of the matrix asphalt is 48 ℃, and the penetration degree of the matrix asphalt is 80-100 (1/10 mm). The 90# asphalt has more excellent comprehensive performances such as anti-slip property, heat resistance, viscosity and the like.
In some embodiments, the asphalt comprises 50 to 70 parts by weight of asphalt based on 100 parts by weight of the modified asphalt mastic. For example, the asphalt is 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight and 70 parts by weight. The quality of the asphalt may also be in any combination of the above values.
According to the embodiment of the invention, SBS is styrene-butadiene-styrene block copolymer, and is a thermoplastic elastomer with good elasticity, high strength and low temperature resistance. The SBS forms a space network structure in the asphalt mixture, and the mechanical property, the ageing resistance and the like of the asphalt can be effectively improved under the action of the modified asphalt.
In some embodiments, the SBS is included in an amount of 2 to 7 parts by weight based on 100 parts by weight of the modified asphalt mastic. For example, SBS is 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, and 7 parts by weight. The SBS may also have any combination of the above values.
According to the embodiment of the invention, the styrene-butadiene rubber latex and/or the chloroprene rubber latex mainly play a role in improving the low-temperature flexibility, the cohesiveness, the potential polarity and the weather resistance of the modified asphalt mastic. Styrene-butadiene rubber latex and/or chloroprene rubber latex is combined with asphalt to form a pressure-sensitive adhesive material. When the modified asphalt glue layer made of the modified asphalt glue containing the styrene butadiene rubber latex and/or the chloroprene rubber latex is applied to the wet-laid waterproof roll, the modified asphalt glue permeates and adsorbs into gaps or cavities of a concrete base surface under the action of pressure to form a mortise and tenon structure, so that the bonding performance and the weather resistance of the wet-laid waterproof roll can be effectively improved.
In some embodiments, the modified asphalt mastic comprises 5 to 20 parts by weight of a styrene-butadiene rubber latex and/or a chloroprene rubber latex, both of which are wet-weight basis, based on 100 parts by weight of the modified asphalt mastic. For example, the styrene-butadiene rubber latex and/or the chloroprene rubber latex are 5 parts by weight, 10 parts by weight, 15 parts by weight and 20 parts by weight. The mass of the styrene-butadiene rubber latex and/or the chloroprene rubber latex may be in any combination of the above values.
In some embodiments, the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2 (1-3). For example, the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2:1, the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 1:1, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 3. The weight ratio may be in any combination of the above values.
In some embodiments, the styrene-butadiene rubber latex and the chloroprene rubber latex are both aqueous or oily latexes having a solids content of 50-75%. For example, the solids content is 50%, 55%, 60%, 65%, 70%, and 75%, and the solids content can be any combination of the above values.
According to the embodiment of the invention, the chlorinated polyolefin rubber has a network structure in the modified asphalt mastic, and can wrap the asphalt in the network structure when being mutually dissolved with the asphalt, and the existence of chlorine atoms in chain segments enables the material not to be easily corroded and oxidized by oxygen in the air.
In some embodiments, the chlorinated polyolefin rubber is included in an amount of 2 to 4 parts by weight based on 100 parts by weight of the modified asphalt mastic. For example, the chlorinated polyolefin rubber is 2 parts by weight, 3 parts by weight and 4 parts by weight. The quality of the chlorinated polyolefin rubber may also be in any combination of the above values.
In some embodiments, the chlorinated polyolefin rubber comprises one or more of chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integral rubber, or chlorinated butyl rubber.
In some embodiments, when the chlorinated polyolefin rubber includes chlorinated butadiene styrene-butadiene rubber, chlorinated butadiene-styrene-isoprene integral rubber, and chlorinated butyl rubber, the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-butadiene rubber, the chlorinated butadiene-styrene-isoprene integral rubber, and the chlorinated butyl rubber is 2 (1-3) to (2-4).
Specifically, chlorinated polyolefin rubber compounded by chlorinated butadiene styrene-butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber plays a role in improving the weather resistance of the wet-laid waterproof roll and the stripping performance of cement mortar. The chlorinated butadiene styrene-butadiene rubber, the chlorinated butadiene-styrene-isoprene integrated rubber and the chlorinated polyolefin rubber compounded by the chlorinated butyl rubber are blended to form a net structure in the modified asphalt, so that the modified asphalt rubber has the following advantages: (1) good low temperature flexibility; (2) the high-temperature fluidity of the asphalt is changed, so that the rubber material has better heat resistance; (3) the modified asphalt mastic has good cohesion and can improve the elongation of the modified asphalt mastic. After the chlorinated polyolefin rubber and the asphalt are mutually dissolved, the modified asphalt rubber cannot be easily corroded and oxidized by oxygen in the air due to the existence of chlorine atoms in chain segments, so that the modified asphalt rubber has better weather resistance. Meanwhile, the existence of chlorine atoms endows the surface of the waterproof roll with certain polarity, and the free polar groups on the surface and the inorganic silicate form a chelate, so that the bonding strength of the waterproof roll and cement mortar is effectively improved.
According to the embodiment of the invention, the modified rubber powder is the rubber powder activated by the modifier, and when the modified asphalt glue layer prepared from the modified asphalt glue provided by the invention is applied to the wet-laid waterproof roll, the rubber powder activated by the modifier and the inorganic silicic acid on the base surface have stronger van der Waals force, so that the effect of improving the bonding performance is achieved.
In some embodiments, the modified asphalt mastic powder comprises 3 to 10 parts by weight based on 100 parts by weight of the modified asphalt mastic. For example, the modified rubber powder is 3 parts by weight, 5 parts by weight, 7 parts by weight, 9 parts by weight and 10 parts by weight. The quality of the modified rubber powder can be in any combination range of the above numerical values.
In some embodiments, the modified rubber powder is a mixture of amino modified rubber powder, maleic anhydride grafted modified rubber powder and microbial modified rubber powder in a weight ratio of 2 (1-3) to 2-4. Wherein the microorganism comprises Thiobacillus and/or sulfolobus.
In some embodiments, the amino modified rubber powder is prepared as follows: adding waste tire powder into a swelling agent for swelling, further swelling through ultrasonic treatment, and then distilling and recovering the swelling agent to obtain porous rubber powder; adding concentrated sulfuric acid into the porous rubber powder, stirring to obtain rubber powder treated by concentrated sulfuric acid, and adding a diluted aminosilane coupling agent for reaction to obtain the product, wherein the mass ratio of the aminosilane coupling agent to the waste tire powder is 0.2: 1.
In some examples, maleic anhydride graft-modified rubber powder was prepared as follows: adding waste tire powder into a swelling agent for swelling, further swelling by ultrasonic treatment, and then distilling and recovering the swelling agent to obtain porous rubber powder; adding concentrated sulfuric acid into the porous rubber powder, stirring to obtain rubber powder after concentrated sulfuric acid treatment, adding maleic anhydride, and stirring to react to obtain the rubber powder, wherein the mass ratio of the maleic anhydride to the waste tire powder is 0.05: 1.
In some embodiments, the sulfolobus solfataricus modified rubber powder is taken as an example, and the preparation method is as follows: adding the waste tire rubber powder into a swelling agent for swelling, further swelling through ultrasonic treatment, and then distilling and recovering the swelling agent to obtain porous rubber powder; soaking the porous rubber powder in a sulfolobus bacteria nutrient solution, and fermenting under the conditions of normal temperature and normal pressure to obtain the feed additive.
Specifically, the amino group and the maleic anhydride grafted modified reclaimed rubber powder are chemically combined, so that the original loose rubber powder forms a continuous structure, and the weather resistance of the material is greatly improved. Meanwhile, stronger van der Waals force exists among the amino group, the maleic anhydride group and the inorganic silicic acid which are not combined, and the effect of improving the bonding performance is achieved. The surface of the microbial modified rubber powder contains sulfate ions, the sulfate is combined with free calcium ions in concrete, and a small amount of ionic bonds are formed between the modified asphalt glue layer containing the modified rubber powder and a contact surface of a base surface containing inorganic silicate and lime concrete, so that the bonding is firmer, the current standard requirement can be met after long-term water soaking, and the possibility of water channeling can be effectively reduced.
According to the embodiment of the invention, the plasticizer can improve the dispersibility of the modified rubber powder in asphalt and can also improve the low-temperature performance of the modified asphalt rubber.
Illustratively, the plasticizer may be one or more of acetyl tri-n-butyl citrate, dioctyl sebacate, aromatic oils, naphthenic oils.
In some embodiments, the plasticizer is present in an amount of 3 to 10 parts by weight, based on 100 parts by weight of the modified asphalt mastic. For example, the plasticizer is 3 parts by weight, 5 parts by weight, 7 parts by weight, 9 parts by weight and 10 parts by weight. The mass of the plasticizer may be in any combination of the above values.
According to the embodiment of the invention, the biological adhesive can generate biological adhesion with the inorganic silicate, and the adhesion performance of the material is greatly increased.
In some embodiments, the bioadhesive is included in an amount of 1 to 5 parts by weight, based on 100 parts by weight of the modified asphalt mastic. For example, the bioadhesive is 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight and 5 parts by weight. The mass of the bioadhesive can also be any combination of the above values.
Illustratively, the bioadhesive may be one or more of shellac, hide glue or barnacle glue.
In particular, when the biological adhesive is barnacle gum, the barnacle gum can generate biological adhesion with inorganic silicate to greatly increase the adhesion performance of the material.
According to the embodiment of the invention, the filler is used as a reinforcing material of the modified asphalt cement, can play a role of a framework, can reduce the cost and improve the ageing resistance of the modified asphalt cement.
In some embodiments, the filler is included in an amount of 10 to 30 parts by weight, based on 100 parts by weight of the modified asphalt mastic. For example, the filler is 10 parts by weight, 15 parts by weight, 20 parts by weight, 25 parts by weight, and 30 parts by weight. The filler mass may also be in any combination of the above values.
Illustratively, the filler is a mixture of one or more of talc, recycled ceramic powder, heavy calcium, light calcium carbonate, kaolin, attapulgite, bentonite, and silica micropowder.
According to an embodiment of one aspect of the invention, the modified asphalt mastic comprises the following raw material components in parts by weight based on 100 parts by weight: 50-60 parts of asphalt; 3-8 parts of a plasticizer; 2-5 parts of SBS; 5-20 parts of styrene-butadiene rubber emulsion and chloroprene rubber emulsion; 2-4 parts by weight of chlorinated polyolefin rubber; 3-7 parts of modified rubber powder; 1-5 parts of biological adhesive; 10-30 parts of filler.
According to an embodiment of one aspect of the invention, the modified asphalt mastic comprises the following raw material components in parts by weight based on 100 parts by weight: 55-60 parts of asphalt; 5-8 parts of a plasticizer; 4-5 parts of SBS; 6-12 parts by weight of styrene-butadiene rubber emulsion and chloroprene rubber emulsion; 2-3 parts by weight of chlorinated polyolefin rubber; 5-7 parts of modified rubber powder; 2-5 parts of biological adhesive; 12-20 parts of filler.
The modified asphalt glue provided by the embodiment of the invention is prepared into a modified asphalt glue layer and then applied to the wet-laid waterproof roll material, and the wet-laid waterproof roll material can be widely used in waterproof engineering of mountain tunnels, urban subways, building houses and the like, can effectively prevent water vapor from corroding a base surface, and has good weather resistance. The wet-laid waterproof coiled material can be firmly bonded with a concrete base surface into a whole, can be firmly bonded with the base surface in a high-temperature and high-humidity environment for a long time, and is suitable for popularization and use in the high-temperature and high-humidity environment in south China.
Preparation of modified asphalt mastic
Embodiments of the second aspect of the present invention provide a method for preparing modified asphalt mastic, comprising the steps of:
the method comprises the following steps: providing raw materials according to the components and the component content;
step two: heating and mixing a part of asphalt with the refined modified rubber powder and chlorinated polyolefin to obtain a first mixture;
step three: mixing the remaining portion of bitumen with a plasticizer, and SBS, under heating to obtain a second mixture;
step four: adding the first mixture, and a biological adhesive and a filler to the second mixture, and heating and mixing to obtain a third mixture;
step five: adding styrene-butadiene rubber emulsion and/or chloroprene rubber emulsion into the third mixture, and stirring and mixing to obtain the modified asphalt mastic.
It is understood that, in order to ensure the reaction to proceed smoothly, in the second step, the method for scouring the modified rubber powder and the chlorinated polyolefin can be performed in a pair roll scouring machine, the temperature for scouring the pair roll can be set to 80 ℃, and the time for scouring can be set to 30 min.
It is understood that, in order to ensure the reaction to proceed smoothly, a part of the pitch in the second step may be 20%; the heating and mixing can be carried out in an open mill, the heating and mixing temperature can be 160 ℃, and the open time can be 60 min.
It can be understood that, in order to ensure that the reaction is carried out smoothly, in the third step, the remaining part of the asphalt and the plasticizer are slowly stirred and heated to 130 ℃, the stirring rate is adjusted, the temperature is raised to 175 ℃ after the SBS is added, the stirring is carried out at the constant temperature for 2.5 hours, and the second mixture is obtained after the SBS is completely melted.
It is understood that the heating and mixing temperature in the fourth step may be 175 ℃ in order to ensure that the reaction proceeds smoothly.
It can be understood that, in order to ensure that the reaction is carried out smoothly, in the fifth step, the third mixture is stirred and heated to 160-165 ℃, and then the styrene-butadiene rubber emulsion and the chloroprene rubber emulsion are added.
The embodiment of the invention provides a method for preparing modified asphalt mastic, which has simple process, and the prepared modified asphalt mastic system is stable and has excellent caking property and weather resistance.
Wet-laid waterproof coiled material
The invention provides a wet-laid waterproof coiled material, which comprises a modified asphalt glue layer prepared from the modified asphalt glue, an isolation layer and a polyester tire.
The preparation method of the wet-laid waterproof roll material provided by the invention comprises the following steps:
(1) preparing the modified asphalt rubber material and the prepreg in advance;
(2) drying the polyester tire (the drying temperature is 150-180 ℃);
(3) the polyester tire passes through a prepreg (the material soaking temperature is 170-195 ℃);
(4) rolling and drying the prepreg after passing through the prepreg (controlling the amount of the prepreg absorbed by the polyester tire cloth);
(5) the thickness of the roller pair is determined by a modified asphalt sizing pool;
(6) and (5) covering the upper film and the lower film, cooling and forming to obtain the wet-laid waterproof coiled material.
The wet-laid waterproof roll material provided by the embodiment of the invention can be applied to a waterproof base surface in a high-humidity and high-temperature state, can be firmly bonded for a long time, and has excellent weather resistance. For example, the waterproof coating is applied to waterproof engineering of mountain tunnels, urban subways, building houses and the like.
Examples
Example 1
The modified asphalt mastic provided by the embodiment comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 58 parts of asphalt, 5 parts of plasticizer, 3 parts of SBS, 5-20 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 2 parts of chlorinated polyolefin rubber, 6 parts of modified rubber powder, 2 parts of biological adhesive (specifically barnacle rubber) and 18 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the chlorinated polyolefin rubber comprises chlorinated polyolefin rubber which is chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber, and the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-isoprene integrated rubber is 2:3: 2;
the modified rubber powder comprises amino modified rubber powder, maleic anhydride grafted modified rubber powder and microorganism modified rubber powder (microorganism is thiobacillus or sulfolobus) in a weight ratio of 2:1: 2.
The raw materials of the components are prepared into the wet-laid waterproof roll material according to the following steps:
step 1: and (3) open-milling the regenerated modified rubber powder and the integrated rubber for 30min at 80 ℃ by a double-roller open-milling machine.
Step 2: slowly adding 20% of asphalt into a milling machine in batches, heating to 160 ℃, milling and mixing for 60 min. The modified rubber powder and the integrated rubber modified asphalt mixture are prepared for later use.
And step 3: adding the rest asphalt and the plasticizer, slowly stirring and heating to 130 ℃;
and 4, step 4: adjusting the stirring speed to 45HZ, adding SBS, and heating to 175 ℃;
and 5: stirring for 2.5 hours at constant temperature, and checking whether SBS is completely swelled;
step 6: and slowly adding the prepared modified rubber powder and the integrated rubber modified asphalt mixture slowly after the SBS is completely melted, and stirring to melt the modified rubber powder and the integrated rubber modified asphalt mixture.
And 7: after the modified material is completely melted, slowly adding the modified powder, keeping the temperature at 175 ℃, and stirring and mixing for 30 min.
And 8: adjusting the stirring speed to be 30HZ, controlling the temperature to be 160-165 ℃, and slowly dripping the rubber emulsion into the reaction kettle.
And step 9: (1) drying the polyester tire (the drying temperature is 150-180 ℃), (2) passing the polyester tire through prepreg (the dipping temperature is 170-195 ℃), (3) carrying out rolling and squeezing (controlling the amount of the prepreg absorbed by polyester tire cloth) after passing the prepreg, (4) carrying out roller-to-roller thickness setting through a modified asphalt glue pool, and (5) covering an upper film and a lower film and cooling and forming to obtain the wet-laid waterproof coiled material.
Example 2
The modified asphalt mastic provided by the embodiment comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 60 parts of asphalt, 5 parts of plasticizer, 4 parts of SBS, 6 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 2 parts of chlorinated polyolefin rubber, 5 parts of modified rubber powder, 2 parts of biological adhesive (specifically barnacle rubber) and 16 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the chlorinated polyolefin rubber comprises chlorinated polyolefin rubber which is chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber, and the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-isoprene integrated rubber is 2:3: 2;
the modified rubber powder comprises amino modified rubber powder, maleic anhydride grafted modified rubber powder and microorganism modified rubber powder (microorganism is thiobacillus or sulfolobus) in a weight ratio of 2:1: 2.
The raw materials of the components are prepared into the wet-laid waterproof roll according to the preparation steps of the example 1.
Example 3
The modified asphalt mastic provided by the embodiment comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 62 parts of asphalt, 5 parts of plasticizer, 4 parts of SBS, 6 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 3 parts of chlorinated polyolefin rubber, 6 parts of modified rubber powder, 2 parts of biological adhesive (specifically barnacle rubber) and 12 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the chlorinated polyolefin rubber comprises chlorinated polyolefin rubber which is chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber, and the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-isoprene integrated rubber is 2:3: 2;
the modified rubber powder comprises amino modified rubber powder, maleic anhydride grafted modified rubber powder and microorganism modified rubber powder (microorganism is thiobacillus or sulfolobus) in a weight ratio of 2:1: 2.
The raw materials of the components are prepared into the wet-laid waterproof roll according to the preparation steps of the example 1.
Example 4
The modified asphalt mastic provided by the embodiment comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 58 parts of asphalt, 5 parts of plasticizer, 3 parts of SBS, 6 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 3 parts of chlorinated polyolefin rubber, 5 parts of modified rubber powder, 2 parts of biological adhesive (specifically barnacle rubber) and 18 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the chlorinated polyolefin rubber comprises chlorinated polyolefin rubber which is chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber, and the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-isoprene integrated rubber is 2:3: 2;
the modified rubber powder comprises amino modified rubber powder, maleic anhydride grafted modified rubber powder and microorganism modified rubber powder (microorganism is thiobacillus or sulfolobus) in a weight ratio of 2:1: 2.
The raw materials of the components are prepared into the wet-laid waterproof roll according to the preparation steps of the example 1.
The wet-laid waterproof rolls prepared in examples 1 to 4 were tested according to the standard test of GB/T35467-2017 "Wet-laid waterproof rolls", and the results are shown in Table 1.
TABLE 1 Properties of the Wet-laid waterproofing membranes described in examples 1 to 4
As can be seen from table 1, the wet-laid waterproof roll provided in embodiments 1 to 4 has various performances superior to standard requirements, and when the wet-laid waterproof roll is used for waterproofing of concrete roofs and structures, the excellent adhesion performance with concrete enables the wet-laid waterproof roll to be integrated with the structural layers, so that the purposes of impermeability and leakage resistance are achieved, and the service life of buildings is prolonged. Although the peel strength of the soaked product and cement mortar is attenuated to a certain extent along with the increase of time and temperature, the performances are all higher than the standard requirements, and similar products with performances comparable to the performances are not found; the asphalt-based wet-laid waterproof coiled material can be applied to concrete base surfaces in a large area, is waterproof for mechanisms and roofs, is convenient and simple to construct, and can effectively shorten the construction period.
Comparative example
Comparative example 1
The modified asphalt mastic comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 60 parts of asphalt, 5 parts of plasticizer, 4 parts of SBS, 6 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 5 parts of modified rubber powder, 2 parts of biological adhesive (specifically barnacle rubber) and 18 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the modified rubber powder comprises amino modified rubber powder, maleic anhydride grafted modified rubber powder and microorganism modified rubber powder (microorganism is thiobacillus or sulfolobus) in a weight ratio of 2:1: 2.
The raw materials of the above components were prepared into a wet-laid waterproofing membrane according to the preparation procedure of example 1 (the preparation procedure did not include only the addition step of chlorinated polyolefin rubber).
Comparative example 2
The modified asphalt mastic comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 60 parts of asphalt, 5 parts of plasticizer, 4 parts of SBS, 6 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 2 parts of chlorinated polyolefin rubber, 5 parts of common regenerated tire rubber powder, 2 parts of biological adhesive (specifically barnacle rubber) and 16 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the common reclaimed tire rubber powder is tire rubber powder which is not subjected to modification treatment after the waste tire is crushed.
The chlorinated polyolefin rubber comprises chlorinated polyolefin rubber which is chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber, and the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-isoprene integrated rubber is 2:3: 2;
the raw materials of the components are prepared into a wet-laid waterproof roll according to the preparation steps of the example 1 (the ordinary reclaimed tire rubber powder is used for replacing the modified rubber powder in the example 1 in the preparation process).
Comparative example 3
The modified asphalt mastic provided by the embodiment comprises the following raw material components in parts by weight based on 100 parts by weight of the modified asphalt mastic: 60 parts of asphalt, 5 parts of plasticizer, 4 parts of SBS, 6 parts of butadiene styrene rubber latex and chloroprene rubber latex (wet weight), 2 parts of chlorinated polyolefin rubber, 5 parts of modified rubber powder and 18 parts of filler.
Wherein, the asphalt is 70# heavy traffic asphalt with low wax and low saturated content;
the plasticizer is acetyl tributyl citrate;
the solid contents of the styrene-butadiene rubber latex and the chloroprene rubber latex are both 50 percent, and the weight ratio of the styrene-butadiene rubber latex to the chloroprene rubber latex is 2: 1;
the chlorinated polyolefin rubber comprises chlorinated polyolefin rubber which is chlorinated butadiene styrene butadiene rubber, chlorinated butadiene-styrene-isoprene integrated rubber and chlorinated butyl rubber, and the weight ratio of the chlorinated polyolefin rubber to the chlorinated butadiene styrene-isoprene integrated rubber is 2:3: 2;
the modified rubber powder comprises amino modified rubber powder, maleic anhydride grafted modified rubber powder and microorganism modified rubber powder (microorganism is thiobacillus or sulfolobus) in a weight ratio of 2:1: 2.
The raw materials of the components are prepared into a wet-laid waterproof roll according to the preparation steps of the example 1 (the preparation process only does not comprise the step of adding the biological binder).
According to the standard test of GB/T35467-2017 'Wet-paved waterproof coiled material', the wet-paved waterproof coiled material prepared in the proportion 1-2 is tested, and the result is shown in the table 2.
Table 2 comparative examples 1-3 d comparison of properties of wet-laid waterproofing membranes example 2
As shown in table 2, compared to example 2, the chlorinated butadiene styrene rubber, chlorinated butadiene-styrene-isoprene integral rubber, and chlorinated butyl rubber were absent from the comparative example 1 component. The weather resistance and the peeling performance of the wet-laid waterproof roll prepared in the comparative example 1 with cement mortar after soaking are obviously reduced, which shows that the integrated rubber compounded by the chlorinated butadiene styrene-butadiene rubber, the chlorinated butadiene-styrene-isoprene integrated rubber and the chlorinated butyl rubber plays a role in improving the weather resistance and the peeling performance of the waterproof roll with the cement mortar. The chlorinated butadiene styrene-butadiene rubber, the chlorinated butadiene-styrene-isoprene integrated rubber and the chlorinated butyl rubber compounded integrated rubber are blended to form a net structure in the modified asphalt, the modified asphalt and the asphalt are mutually soluble to wrap the asphalt in the net structure, and the chlorine-atoms in the chain segment enable the material not to be easily corroded and oxidized by oxygen in the air, so that the waterproof material has better weather resistance. Meanwhile, the existence of chlorine atoms endows the surface of the waterproof roll with certain polarity, so that the bonding strength of the waterproof roll and cement mortar is improved.
Compared with the example 2, the common reclaimed tire rubber powder is used for replacing the modified rubber powder in the example 2 in the comparative example 2, the peel strength of the wet-laid waterproof roll material prepared in the comparative example 2 and the peel performance of the wet-laid waterproof roll material after being soaked in water are obviously reduced, and the peel strength of the waterproof roll material and the cement mortar can be obviously improved by adding the mixed modified rubber powder. The weather resistance of the material is greatly improved due to the chemical combination of the amino group and the maleic anhydride grafted modified reclaimed rubber powder, and the bonding performance is improved due to the strong van der Waals force between the amino group/maleic anhydride group which is not combined and the inorganic silicic acid; the surface of the microbial modified rubber powder contains sulfate ions, the sulfate is combined with free calcium ions in concrete, and a small amount of ionic bonds are formed on the contact surface of the material and the concrete base surface containing inorganic silicate and lime, so that the bonding is firmer.
Compared with the example 2, the components of the comparative example 3 lack the biological adhesive, and the peel strength of the wet-laid waterproof coiled material prepared in the comparative example 3 and the peel performance of the waterproof coiled material after being soaked in water and the cement mortar are obviously reduced, which shows that the peel strength of the waterproof coiled material and the cement mortar can be obviously improved by adding the biological adhesive. This is because the biological adhesive such as barnacle gum and the like produces biological adhesion with inorganic silicate to greatly increase the adhesive property of the material.
While the present application has been described with reference to preferred embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application, and in particular, features shown in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (10)
1. The modified asphalt cement is characterized by comprising the following raw material components in parts by weight based on 100 parts by weight:
50-70 parts of asphalt;
3-10 parts of a plasticizer;
2-7 parts of SBS;
styrene-butadiene rubber latex and/or chloroprene rubber latex account for 5-20 parts by weight in total;
2-4 parts by weight of chlorinated polyolefin rubber;
3-10 parts of modified rubber powder, wherein the modified rubber powder is rubber powder activated by a modifier and is used for improving the cohesiveness of the modified asphalt rubber;
1-5 parts of biological adhesive;
10-30 parts of filler.
2. The modified asphalt mastic as claimed in claim 1, wherein the modified asphalt mastic comprises the following raw materials in parts by weight based on 100 parts by weight:
50-60 parts of asphalt;
3-8 parts of a plasticizer;
2-5 parts of SBS;
5-20 parts of styrene-butadiene rubber emulsion and chloroprene rubber emulsion;
2-4 parts by weight of chlorinated polyolefin rubber;
3-7 parts of modified rubber powder;
1-5 parts of biological adhesive;
10-30 parts of filler.
3. The modified asphalt mastic as claimed in claim 1, wherein the modified asphalt mastic comprises the following raw materials in parts by weight based on 100 parts by weight:
55-60 parts of asphalt;
5-8 parts of a plasticizer;
4-5 parts of SBS;
6-12 parts by weight of styrene-butadiene rubber emulsion and chloroprene rubber emulsion;
2-3 parts by weight of chlorinated polyolefin rubber;
5-7 parts of modified rubber powder;
2-5 parts of biological adhesive;
12-20 parts of filler.
4. The modified asphalt mastic as claimed in any one of claims 1 to 3, wherein the styrene-butadiene rubber latex and the chloroprene rubber latex are both aqueous or oily latices having a solid content of 50 to 75%.
5. The modified asphalt mastic of any one of claims 1 to 3, wherein the chlorinated polyolefin rubber comprises one or more of chlorinated butadiene styrene-butadiene rubber, chlorinated butadiene-styrene-isoprene integral rubber or chlorinated butyl rubber.
6. The modified asphalt rubber as claimed in claim 5, wherein the chlorinated polyolefin rubber is a mixture of chlorinated butadiene styrene-butadiene rubber, chlorinated butadiene-styrene-isoprene integral rubber and chlorinated butyl rubber in a weight ratio of 2 (1-3) to (2-4).
7. The modified asphalt glue according to any one of claims 1 to 3, wherein the modified glue powder is one or more of amino modified glue powder, maleic anhydride grafted modified glue powder and microbial modified glue powder.
8. The modified asphalt cement as claimed in claim 7, wherein the modified rubber powder is a mixture of amino modified rubber powder, maleic anhydride grafted modified rubber powder and microbial modified rubber powder in a weight ratio of 2 (1-3) to 2-4.
9. The method for preparing the modified asphalt mastic is characterized by comprising the following steps:
providing a feedstock in accordance with the components and component amounts of any one of claims 1 to 8;
heating and mixing a part of asphalt with the refined modified rubber powder and chlorinated polyolefin to obtain a first mixture;
mixing the remaining portion of bitumen with a plasticizer, and SBS, under heating to obtain a second mixture;
adding the first mixture, and a biological adhesive and a filler to the second mixture, and heating and mixing to obtain a third mixture;
adding styrene-butadiene rubber emulsion and/or chloroprene rubber emulsion into the third mixture, and stirring and mixing to obtain the modified asphalt mastic.
10. A wet-laid waterproof roll material, which is characterized by comprising an isolation layer, a polyester tire and a modified asphalt glue layer containing the modified asphalt glue of any one of claims 1 to 8.
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