CN109401727B - Asphalt mastic and preparation method and application thereof - Google Patents
Asphalt mastic and preparation method and application thereof Download PDFInfo
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- CN109401727B CN109401727B CN201811353959.8A CN201811353959A CN109401727B CN 109401727 B CN109401727 B CN 109401727B CN 201811353959 A CN201811353959 A CN 201811353959A CN 109401727 B CN109401727 B CN 109401727B
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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
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/241—Polyolefin, e.g.rubber
- C09J7/243—Ethylene or propylene polymers
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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
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- 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
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses asphalt cement and a preparation method and application thereof, wherein the asphalt cement is prepared from the following raw materials in parts by weight: 45-65 parts of petroleum asphalt; 5-20 parts by weight of an epoxy plasticizer; 2-15 parts by weight of a styrene-butadiene-styrene block copolymer; 2-10 parts by weight of a hot melt adhesive grade elastomer; 2-10 parts of tackifying resin; 1-30 parts by weight of an inorganic filler. The asphalt mastic of the invention can be widely used in the preparation of the self-adhesive mastic of the waterproof coiled material, and is particularly suitable for HDPE self-adhesive film waterproof coiled materials. Compared with the prior art, the asphalt mastic has good ageing resistance and strong viscosity, and can be used for preparing waterproof coiled materials with long service life and good waterproof performance.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to asphalt mastic and a preparation method and application thereof.
Background
Asphalt is a product in the process of crude oil processing, is black or black brown viscous liquid or solid at normal temperature, and comprises four kinds of natural asphalt, petroleum asphalt, shale asphalt, coal tar asphalt and the like. Asphalt has good cohesiveness, waterproofness and corrosion resistance, and has been widely used in the fields of roads, waterproof engineering, corrosion prevention and the like. However, asphalt still has defects in high temperature resistance, flow resistance, low temperature flexibility, weather resistance and the like, so that it is not ideal in application effect. Therefore, if the asphalt can be modified to overcome the existing defects, the application effect and the field range of the asphalt can be further improved.
Asphalt mastic is a mineral adhesive with petroleum asphalt as a matrix, and is prepared by adding a filler into an asphalt material for modification in order to improve the heat resistance of the asphalt and reduce the low-temperature brittleness of the asphalt. The modified asphalt mastic can be widely used as a self-adhesive material of waterproof rolls, such as a self-adhesive material of a High Density Polyethylene (HDPE) self-adhesive film waterproof roll. The HDPE self-adhesive film waterproof coiled material is a waterproof material which can be widely applied to underground and tunnel engineering and has excellent water channeling prevention function and is applied widely in recent years due to simple construction operation and high waterproof reliability.
At present, self-adhesive adhesives used by HDPE self-adhesive film waterproof rolls in the market are mainly polymer modified asphalt, and during construction and use, the problems of aging, cracking, loss of adhesive property and the like easily occur due to the corrosion of ultraviolet rays, oxygen, water and the like in the environment. In the prior art, an anti-aging auxiliary agent is not usually added to the asphalt self-adhesive cement in terms of cost and the like, and although some technologies add an anti-aging agent (such as phenolic antioxidants 1010 and 168, ultraviolet absorbers UV-P, UV-521 and the like) to the self-adhesive cement in order to improve the anti-aging performance, once the glue layer is exposed to the air, the viscosity is still lost quickly, so that the essential problem cannot be solved even if the anti-aging agent is added. In addition, because HDPE is a non-polar material, the surface energy of HDPE is low and the HDPE is not easy to wet, so that the wetting effect between the adhesive layer and the sheet is poor, and the adhesive layer and the sheet are easy to peel off during storage or use, thereby losing the waterproof effect, bringing hidden danger to waterproof engineering and directly influencing the service life of the waterproof roll.
Therefore, the development of the asphalt mastic with good ageing resistance and high peel strength is of great significance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the asphalt mastic is particularly suitable for being used as a self-adhesive mastic of HDPE self-adhesive film waterproof rolls.
In order to solve the technical problems, the invention adopts the technical scheme that: the asphalt mastic is prepared from the following raw materials in parts by weight: 45-65 parts of petroleum asphalt; 5-20 parts by weight of an epoxy plasticizer; 2-15 parts by weight of a styrene-butadiene-styrene block copolymer; 2-10 parts by weight of a hot melt adhesive grade elastomer; 2-10 parts of tackifying resin; 1-30 parts by weight of an inorganic filler.
Preferably, the petroleum asphalt comprises 70# petroleum asphalt, 90# petroleum asphalt and/or 100# petroleum asphalt.
Preferably, the epoxy plasticizer comprises epoxidized soybean oil, epoxidized fatty acid methyl ester and/or epoxidized tetrahydrophthalate; more preferably, the epoxy plasticizer is epoxidized soybean oil.
Preferably, the styrene-butadiene-styrene block copolymer comprises a linear styrene-butadiene-styrene block copolymer and/or a star-shaped linear styrene-butadiene-styrene block copolymer.
Preferably, the hot melt adhesive grade elastomer comprises a styrene-isoprene-styrene block copolymer and/or an ethylene-vinyl acetate copolymer.
More preferably, the styrene-isoprene-styrene block copolymer is a linear structure, such as SIS1105 or SIS 1106.
More preferably, if any, the styrene-isoprene-styrene block copolymer contains 15 to 20 percent of styrene structural units; if yes, the content of the vinyl acetate unit in the ethylene-vinyl acetate copolymer is 20-30%.
Further, the tackifying resin comprises at least one of rosin, C5 petroleum resin, C9 petroleum resin, hydrogenated petroleum resin, and phenolic resin.
Further, the inorganic filler comprises at least one of light calcium carbonate, heavy calcium carbonate, talcum powder, high-powder soil, bentonite and bauxite.
The invention has the beneficial effects that: the scheme of the invention utilizes the physical and chemical interaction between polar epoxy groups in the epoxy plasticizer and hydroxyl, phenol groups and other groups in the asphaltene and resin to improve the compatibility between the epoxy plasticizer and the asphalt, thereby substantially improving various performance indexes of the asphalt, such as increasing the ductility and penetration of the asphalt and improving the low-temperature flexibility of the asphalt sizing material; because the concrete is also a polar material, the asphalt mastic added with the epoxy plasticizer can be better bonded with the concrete according to a similar intermiscibility mechanism; in addition, the epoxy plasticizer also has good stabilizing effect on light and heat, and can obviously improve the defect of poor aging resistance of the asphalt sizing material; meanwhile, the hot melt adhesive grade elastomer and tackifying resin are added to serve as the composite tackifier, so that the prepared asphalt sizing material has good wettability with the waterproof coiled material sheet layer, the sizing material and the waterproof coiled material sheet layer are not easy to peel, and the peel strength between the coiled materials and between the coiled material and post-cast concrete is greatly improved.
The invention also comprises a preparation method of the asphalt mastic, which comprises the following steps:
s1, adding the petroleum asphalt and the epoxy plasticizer into a reaction kettle, and stirring and heating to 90-160 ℃;
s2, adding tackifying resin, stirring for 30-60 min, and heating to 180-185 ℃;
s3, adding a styrene-butadiene-styrene block copolymer and a hot melt elastomer, and carrying out heat preservation and high-speed shearing at the temperature of 180-185 ℃ for 60-240 min;
s4, adding inorganic filler, cooling to 160-170 ℃, and stirring for 30-60 min.
The invention has the beneficial effects that: the scheme of the invention has the advantages of simple preparation process, convenient operation, no volatile substances in the whole process, little harm to operators and better operation economy.
The invention also comprises the application of the asphalt mastic in the preparation of the self-adhesive mastic of the waterproof coiled material.
Preferably, the waterproof coiled material is an HDPE self-adhesive film waterproof coiled material.
The invention has the beneficial effects that: the asphalt mastic prepared by the invention is particularly suitable for HDPE self-adhesive film waterproof coiled materials, and the asphalt mastic prepared by the scheme of the invention has very excellent ageing resistance and high peel strength when being used for waterproof coiled materials, so that the service life of the waterproof coiled materials is far longer than that of common asphalt mastics, and the high peel strength and excellent ageing resistance enable the waterproof coiled materials using the asphalt mastic to effectively reduce the potential safety hazard of waterproof engineering.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description will be given with reference to the embodiments.
The asphalt mastic is prepared from the following raw materials in parts by weight: 45-65 parts of petroleum asphalt; 5-20 parts by weight of an epoxy plasticizer; 2-15 parts by weight of a styrene-butadiene-styrene block copolymer; 2-10 parts by weight of a hot melt adhesive grade elastomer; 2-10 parts of tackifying resin; 1-30 parts by weight of an inorganic filler.
From the above description, the beneficial effects of the present invention are: the scheme of the invention utilizes the physical and chemical interaction between polar epoxy groups in the epoxy plasticizer and hydroxyl, phenol groups and other groups in the asphaltene and resin to improve the compatibility between the epoxy plasticizer and the asphalt, thereby substantially improving various performance indexes of the asphalt, such as increasing the ductility and penetration of the asphalt and improving the low-temperature flexibility of the asphalt sizing material; because the concrete is also a polar material, the asphalt mastic added with the epoxy plasticizer can be better bonded with the concrete according to a similar intermiscibility mechanism; in addition, the epoxy plasticizer also has good stabilizing effect on light and heat, and can obviously improve the defect of poor aging resistance of the asphalt sizing material; meanwhile, the hot melt adhesive grade elastomer and tackifying resin are added to serve as the composite tackifier, so that the prepared asphalt sizing material has good wettability with the waterproof coiled material sheet layer, the sizing material and the waterproof coiled material sheet layer are not easy to peel, and the peel strength between the coiled materials and between the coiled material and post-cast concrete is greatly improved.
Preferably, the petroleum asphalt comprises 70# petroleum asphalt, 90# petroleum asphalt and/or 100# petroleum asphalt.
Preferably, the epoxy plasticizer comprises epoxidized soybean oil, epoxidized fatty acid methyl ester and/or epoxidized tetrahydrophthalate; more preferably, the epoxy plasticizer is epoxidized soybean oil.
From the above description, the beneficial effects of the present invention are: the asphalt mastic adopts the epoxy plasticizer (especially epoxidized soybean oil), not only has the functions of improving the adhesive force, initial viscosity and low-temperature flexibility of the self-adhesive mastic and reducing the melt viscosity of the conventional plasticizer, but also can play a role of a stabilizer in the mastic, and the ultraviolet aging resistance and the thermal oxidation aging resistance of the asphalt mastic added with the scheme of the invention are far higher than those of the common asphalt self-adhesive mastic.
Preferably, the styrene-butadiene-styrene block copolymer comprises a linear styrene-butadiene-styrene block copolymer and/or a star-shaped linear styrene-butadiene-styrene block copolymer.
From the above description, the beneficial effects of the present invention are: the styrene-butadiene-styrene block copolymer can improve the high and low temperature performance and the temperature sensing performance of the asphalt at the same time.
Preferably, the hot melt adhesive grade elastomer comprises a styrene-isoprene-styrene block copolymer and/or an ethylene-vinyl acetate copolymer.
From the above description, the beneficial effects of the present invention are: the hot melt adhesive grade elastomer has good thermal stability, low-temperature flexibility, elasticity and flexibility, and compared with the asphalt mastic modified by single tackifying resin in the prior art, the asphalt mastic modified by the hot melt adhesive grade elastomer and the tackifying resin has better heat resistance, low-temperature flexibility and permanent deformation resistance.
More preferably, the styrene-isoprene-styrene block copolymer is a linear structure, such as SIS1105 or SIS 1106.
More preferably, if any, the styrene-isoprene-styrene block copolymer contains 15 to 20 percent of styrene structural units; if yes, the content of the vinyl acetate unit in the ethylene-vinyl acetate copolymer is 20-30%.
Further, the tackifying resin comprises at least one of rosin, C5 petroleum resin, C9 petroleum resin, hydrogenated petroleum resin, and phenolic resin.
Further, the inorganic filler comprises at least one of light calcium carbonate, heavy calcium carbonate, talcum powder, high-powder soil, bentonite and bauxite.
The invention also comprises a preparation method of the asphalt mastic, which comprises the following steps:
s1, adding the petroleum asphalt and the epoxy plasticizer into a reaction kettle, and stirring and heating to 90-160 ℃;
s2, adding tackifying resin, stirring for 30-60 min, and heating to 180-185 ℃;
s3, adding a styrene-butadiene-styrene block copolymer and a hot melt elastomer, and carrying out heat preservation and high-speed shearing at the temperature of 180-185 ℃ for 60-240 min;
s4, adding inorganic filler, cooling to 160-170 ℃, and stirring for 30-60 min.
From the above description, the beneficial effects of the present invention are: the scheme of the invention has the advantages of simple preparation process, convenient operation, no volatile substances in the whole process, little harm to operators and better operation economy.
The invention also comprises the application of the asphalt mastic in the preparation of the self-adhesive mastic of the waterproof coiled material.
Preferably, the waterproof coiled material is an HDPE self-adhesive film waterproof coiled material.
From the above description, the beneficial effects of the present invention are: the asphalt mastic prepared by the invention is particularly suitable for HDPE self-adhesive film waterproof coiled materials, and the asphalt mastic prepared by the scheme of the invention has very excellent ageing resistance and high peel strength when being used for waterproof coiled materials, so that the service life of the waterproof coiled materials is far longer than that of common asphalt mastics, and the high peel strength and excellent ageing resistance enable the waterproof coiled materials using the asphalt mastic to effectively reduce the potential safety hazard of waterproof engineering.
The embodiment 1 of the invention relates to asphalt cement, and the preparation raw materials of the asphalt cement comprise the following components in percentage by weight:
weighing the raw materials in proportion, adding 70# petroleum asphalt and an epoxy plasticizer into a reaction kettle, stirring and heating to 130 ℃; adding tackifying resin (C5 hydrogenated petroleum resin), gradually heating to 150 ℃, and reacting for 30min at 130-150 ℃; heating to 185 deg.C, adding styrene-butadiene-styrene block copolymer and styrene-isoprene-styrene block copolymer, and high-speed shearing and stirring at 185 deg.C for 180 min; at the moment, no obvious particles exist by visual observation, the ground limestone is added, the temperature is reduced to 160 ℃, and the mixture is stirred for 30min to prepare a first asphalt mastic sample.
The embodiment 2 of the invention relates to asphalt cement, and the preparation raw materials of the asphalt cement comprise the following raw materials in percentage by weight:
weighing the raw materials in proportion, adding 90# petroleum asphalt and an epoxy plasticizer into a reaction kettle, stirring and heating to 120 ℃; adding tackifying resin and styrene-isoprene-styrene segmented copolymer, gradually heating to 150 ℃, and reacting for 30min at 120-150 ℃; heating to 185 deg.C, adding styrene-butadiene-styrene block copolymer, and shearing at 185 deg.C for 150 min; and at the moment, no obvious particles exist by visual observation, adding heavy calcium carbonate, cooling to 160 ℃, and stirring for 30min to obtain an asphalt mastic sample II.
The embodiment 3 of the invention relates to asphalt cement, and the preparation raw materials of the asphalt cement comprise the following raw materials in percentage by weight:
weighing the raw materials in proportion, adding 70# petroleum asphalt and an epoxy plasticizer into a reaction kettle, stirring and heating to 150 ℃; adding tackifying resin, gradually heating to 185 ℃, and reacting for 30min at 150-185 ℃; adding styrene-butadiene-styrene block copolymer and ethylene-vinyl acetate copolymer, and shearing and stirring at 185 deg.C for 120 min; and at the moment, no obvious particles exist by visual observation, adding heavy calcium carbonate, cooling to 160 ℃, and stirring for 60min to obtain an asphalt mastic sample III.
The comparative example 1 of the invention is asphalt cement, and the preparation raw materials of the asphalt cement comprise the following components in percentage by weight:
weighing the raw materials in proportion, adding 70# petroleum asphalt and naphthenic oil into a reaction kettle, stirring and heating to 130 ℃; adding tackifying resin, antioxidant and ultraviolet absorbent, gradually heating to 150 ℃, and reacting for 30min at 130-150 ℃; then the temperature is raised to 185 ℃, the styrene-butadiene-styrene block copolymer and the styrene-isoprene-styrene block copolymer are added, and the mixture is sheared and stirred at high speed for 180min at 185 ℃; at the moment, no obvious particles exist by visual observation, the heavy calcium carbonate is added, the temperature is reduced to 160 ℃, and the mixture is stirred for 30min to prepare the asphalt mastic comparison sample I.
The comparative example 2 of the invention is asphalt cement, and the preparation raw materials of the asphalt cement comprise the following components:
weighing the raw materials in proportion, adding 70# petroleum asphalt and epoxidized soybean oil into a reaction kettle, stirring and heating to 120 ℃; adding tackifying resin, gradually heating to 150 ℃, and reacting for 30min at 120-150 ℃; then the temperature is raised to 185 ℃, the styrene-butadiene-styrene block copolymer is added, and the mixture is sheared and stirred at 185 ℃ for 150 min; and at the moment, no obvious particles exist by visual observation, adding heavy calcium carbonate, cooling to 160 ℃, and stirring for 30min to obtain an asphalt mastic reference sample II.
The asphalt mastic samples prepared in the above examples 1 to 3 and comparative examples 1 to 2 were used as a self-adhesive mastic in the preparation of a HDPE self-adhesive film waterproof roll, and then the performance of the prepared HDPE self-adhesive film waterproof roll (each waterproof roll was named by an asphalt mastic name) was tested, and the results are shown in table 1.
TABLE 1HDPE self-adhesive film waterproof coiled material Performance test results
As can be seen from the above table, the data of comparative examples 1 to 3 and comparative example 1 show that even though the waterproof roll prepared by the asphalt mastic comparative sample added with the antioxidant and the ultraviolet absorber can be easily peeled off under heat treatment or ultraviolet treatment, the peeling strength of the waterproof roll prepared by the sample of the scheme of the present invention is basically unchanged; in a natural environment, even if the protective film is used for 30 days, the viscosity of the product is basically unchanged, while the product in the comparative example 1 basically loses viscosity, and the product loses viscosity after 72 hours without the protective film; as can be seen by comparing the data of examples 1-3 and comparative example 2, even if epoxidized soybean oil is added, the thermal stability and the anti-aging performance of the product without the hot melt adhesive grade elastomer are reduced, and the low-temperature flexibility is also greatly reduced.
In conclusion, compared with the prior art, the asphalt mastic and the preparation method and application thereof provided by the invention have the advantages that the asphalt mastic has good ageing resistance and strong viscosity, and the waterproof coiled material with long service life and good waterproof performance can be prepared by using the asphalt mastic in the preparation of the waterproof coiled material.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention in the specification or directly or indirectly applied to the related technical field are included in the scope of the present invention.
Claims (4)
1. An asphalt mastic is characterized in that: the asphalt mastic is prepared from the following raw materials in parts by weight: 60 parts of petroleum asphalt; 15 parts by weight of an epoxy plasticizer; 10 parts by weight of a styrene-butadiene-styrene block copolymer; 3 parts of a hot melt adhesive grade elastomer; 7 parts of tackifying resin; 5 parts of inorganic filler; the epoxy plasticizer comprises epoxidized soybean oil; the inorganic filler is heavy calcium carbonate; the styrene-butadiene-styrene block copolymer is a linear styrene-butadiene-styrene block copolymer; the hot melt adhesive grade elastomer is a styrene-isoprene-styrene block copolymer; the petroleum asphalt is 70# petroleum asphalt.
2. A method for preparing asphalt mastic according to claim 1, characterized in that: the method comprises the following steps:
s1, adding the petroleum asphalt and the epoxy plasticizer into a reaction kettle, and stirring and heating to 90-160 ℃;
s2, adding tackifying resin, stirring for 30-60 min, and heating to 180-185 ℃;
s3, adding a styrene-butadiene-styrene block copolymer and a hot melt elastomer, and carrying out heat preservation and high-speed shearing at the temperature of 180-185 ℃ for 60-240 min;
s4, adding inorganic filler, cooling to 160-170 ℃, and stirring for 30-60 min.
3. Use of the asphalt mastic according to claim 1 in the preparation of a waterproofing membrane self-adhesive mastic.
4. Use according to claim 3, characterized in that: the waterproof roll is a HDPE self-adhesive film waterproof roll.
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| CN113667452B (en) * | 2021-09-15 | 2023-02-03 | 山东赛高新材料有限公司 | Water-resistant adhesive and preparation method and application thereof |
| CN116676036A (en) * | 2023-05-11 | 2023-09-01 | 湖南神宇新材料有限公司 | Dual-purpose environment-friendly solvent-free bi-component polyurethane waterproof coating as well as preparation method and application thereof |
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| US10611938B2 (en) * | 2014-08-19 | 2020-04-07 | Owens Corning Intellectual Capital, Llc | Oil-enhanced polymer modified asphalt adhesive compositions and methods of making |
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