CN110863518B - Anti-aging asphalt-based pre-paved waterproof coiled material and preparation method thereof - Google Patents
Anti-aging asphalt-based pre-paved waterproof coiled material and preparation method thereof Download PDFInfo
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- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
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- B32B11/00—Layered products comprising a layer of bituminous or tarry substances
- B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The utility model provides an ageing-resistant pitch base is waterproof coiled material of spreading in advance which structure top-down does respectively: the heat-resistant material comprises a heat-resistant material anti-sticking layer, a modified asphalt self-adhesive layer, a base layer, a modified asphalt self-adhesive layer and a polyethylene film layer, wherein the thickness of a coiled material is 4.0 mm; the modified asphalt self-adhesive material comprises the following components in percentage by mass: 58-62% of mixed asphalt, 2-4% of oil-extended SBS, 78-3% of thermoplastic rubber SAM2, 2-3% of solution polymerized styrene-butadiene rubber, 1-2% of tackifying resin, 2-3% of anti-aging auxiliary agent, 9-12% of rubber powder and 18-22% of filler. Compared with the prior art, its beneficial effect lies in: the technical scheme improves the formula of the asphalt self-adhesive layer, and the modified asphalt self-adhesive layer is provided with the thermal-resistance material anti-adhesion layer, so that the full adhesion effect of the coiled material with the post-cast concrete layer after the coiled material is exposed outdoors is ensured through dual anti-aging measures on the structure and the material, the waterproof effect is good, and the integral anti-aging performance of the material is good.
Description
Technical Field
The invention relates to the technical field of waterproof building materials, in particular to an anti-aging asphalt-based pre-paved waterproof coiled material and a preparation method thereof.
Background
In recent years, due to the good waterproof effect and the convenient construction method of the pre-paved waterproof roll, the market demand is increased sharply, along with the shortage of land resources, the underground engineering volume is larger and larger, and particularly, the pre-paved waterproof roll is used in a large area at the bottom plate of a basement, which comprises the key projects of a plurality of infrastructures: urban underground comprehensive pipe gallery, rail traffic engineering, highway railway tunnel etc. however compare ordinary waterproofing membrane, and the waterproofing membrane of laying in advance is a product that has higher technical threshold. The pre-paved waterproof coiled material on the market is mainly a macromolecule self-adhesive film waterproof coiled material, but has the problems that an adhesive layer is easily separated from a macromolecule main body layer, the phenomenon is more obvious after the coiled material is aged, and the hidden trouble of leakage exists; if the common asphalt-based coiled material is used for pre-paving, the exposed time of the coiled material before the post-cast concrete is not poured is easily influenced by factors such as illumination, heat and the like, so that the coiled material is quickly aged, and the full bonding effect with the post-cast concrete is influenced.
Disclosure of Invention
The invention aims to overcome at least one defect (deficiency) of the prior art, and provides an anti-aging asphalt-based pre-paved waterproof coiled material, which adopts a modified asphalt self-adhesive layer, has good bonding effect, is provided with a heat-resistant material protective layer, can effectively relieve the aging of the modified asphalt self-adhesive layer caused by the external environment of the coiled material in the period of time exposed before concrete pouring, and has excellent anti-aging performance of the whole material.
The invention also aims to provide a preparation method of the anti-aging asphalt-based pre-paved waterproof coiled material, which carries out double anti-aging measures from the structure and the formula of the coiled material, ensures the full bonding effect between the coiled material and a post-cast concrete layer after the coiled material is exposed outdoors, and has good waterproof effect and simple and convenient construction method.
The technical scheme adopted by the invention is as follows:
the utility model provides an ageing-resistant pitch base is waterproof coiled material of spreading in advance which structure top-down does respectively: the heat-resistant material comprises a heat-resistant material anti-sticking layer, a modified asphalt self-adhesive layer, a base layer, a modified asphalt self-adhesive layer and a polyethylene film layer, wherein the thickness of a coiled material is 4.0 mm; the modified asphalt self-adhesive material comprises the following components in percentage by mass: 58-62% of mixed asphalt, 2-4% of oil-extended SBS, 2-3% of thermoplastic rubber SAM, 2-3% of solution polymerized styrene-butadiene rubber, 1-2% of tackifying resin, 2-3% of anti-aging auxiliary agent, 9-12% of rubber powder and 18-22% of filler.
The anti-aging asphalt-based pre-paved waterproof coiled material provided by the invention adopts a thermal resistance material as an anti-sticking layer, has the effects of small heat conductivity coefficient, good heat resistance, low water absorption and good acid and alkali resistance, and can effectively relieve the aging of the modified asphalt self-sticking layer caused by the external environment in the period of time exposed before concrete is poured after the coiled material is poured; the modified asphalt self-adhesive material is added with the anti-aging auxiliary agent nano zinc oxide and the organic montmorillonite, and the anti-aging auxiliary agent nano zinc oxide and the organic montmorillonite are synergistic, so that the photo-oxidation resistance and the thermal oxidation resistance of the coiled material are effectively improved; and the oil-extended SBS, the thermoplastic elastomer SAM and the solution-polymerized styrene-butadiene rubber SSBR are added, so that the photo-thermal stability and the low-temperature performance of the coiled material are improved. Comprehensively, the technical scheme improves the formula of the asphalt self-adhesive layer, and the modified asphalt self-adhesive layer is provided with the heat-resistant material anti-adhesive layer, so that the full adhesion effect of the coiled material with the post-cast concrete layer after the coiled material is exposed outdoors is ensured by double anti-aging measures on the structure and the material, the waterproof effect is good, and the integral anti-aging performance of the material is good; in addition, the anti-aging asphalt-based pre-paved waterproof coiled material provided by the technical scheme is simple and convenient in construction method.
Preferably, the mixed asphalt is a mixture of 90# heavy-duty asphalt and 200# asphalt blended with soft components, the penetration degree of the mixed asphalt is 120-130, and the ratio of (1.5-2.5) to 1. In the technical scheme, in order to prevent the small molecular oil migration from causing the coil viscosity loss after the coil is subjected to thermal aging, the oil is not added into the self-adhesive coil.
Preferably, the thermoplastic rubber SAM is a linear molecular structure with a styrene content of 27-33%; the oil-filled SBS is a star-structure SBS with the oil filling rate of 30-36%. In the invention, the thermoplastic rubber SAM is a linear molecular structure with 30 percent of styrene content, and has good low-temperature flexibility and high-temperature storage property; the oil-filled SBS adopts star-structure SBS with oil filling rate of about 33%, and has good processing performance and photo-thermal stability.
Preferably, the solution-polymerized styrene-butadiene rubber is a star-structured SSBR with a styrene content of 20-30%. The modified asphalt self-adhesive material has good low-temperature resistance, processability and high-temperature storage property by adopting the star-structure SSBR with the styrene content of 20-30%.
Preferably, the tackifying resin is one or more of C5/C9 copolymerized petroleum resin, terpene resin and rosin resin.
Preferably, the anti-aging auxiliary agent is nano zinc oxide and organic montmorillonite, and the proportion is (1.6-2.4): 1. Specifically, the nano zinc oxide can be used for remarkably improving the ultraviolet aging resistance of the modified asphalt, the organic montmorillonite can be used for remarkably improving the heat aging resistance of the modified asphalt, and the organic montmorillonite and the modified asphalt are synergistic to ensure that the modified asphalt self-adhesive material has excellent aging resistance.
As a preferable scheme, the rubber powder is one or more of 60-80 mesh tire rubber powder and butyl rubber powder; the filler is one or more of calcium carbonate, talcum powder, heavy calcium, light calcium and calcined kaolin.
Preferably, the heat-resistant material anti-sticking layer comprises 30-50-mesh ceramic sand in continuous gradation. Specifically, the ceramic sand adopted in the technical scheme is one or more of bauxite ceramic sand, clay ceramic sand, shale ceramic sand and fly ash ceramic sand.
In a preferable scheme, the base course layer is a polyester tire with the gram weight of more than 300 g/square meter and the size change rate of less than or equal to 0.5 percent.
The invention also aims to provide a preparation method of the anti-aging asphalt-based pre-paved waterproof coiled material, which sequentially comprises the following steps: mixing and modifying the modified asphalt self-adhesive material, pre-dipping the base, coating the self-adhesive material, forming by a pair roller, laminating, sanding, cooling, flattening, rolling and packaging;
the mixing modification process of the modified asphalt self-adhesive material specifically comprises the following steps:
adding mixed asphalt in a corresponding formula proportion into a reaction kettle, heating to 120-140 ℃, and then starting stirring to melt, wherein the stirring frequency is 30-35 HZ; adding the oil-filled SBS, SAM and SSBR into the reaction kettle in sequence when the temperature rises to about 150-165 ℃, wherein the stirring frequency is 45-50 HZ; heating to 165-175 ℃, adding tackifying resin and rubber powder, continuously stirring, and mixing and modifying for 3-4 h at the temperature; and after the polymer is completely melted, slowly adding the filler and the anti-aging auxiliary agent, keeping the temperature at 170-175 ℃, stirring for 1-1.5 h, and cooling to 160-170 ℃ to obtain the modified asphalt self-adhesive material.
Compared with the prior art, the invention has the beneficial effects that:
according to the anti-aging asphalt-based pre-paved waterproof coiled material provided by the technical scheme, the formula of the asphalt self-adhesive layer is improved, the thermal-resistance material anti-adhesion layer is arranged on the modified asphalt self-adhesive layer, the full adhesion effect of the coiled material after outdoor exposure and a post-cast concrete layer is ensured through dual anti-aging measures on the structure and the material, the waterproof effect is good, and the overall anti-aging performance of the material is good; in addition, the anti-aging asphalt-based pre-paved waterproof coiled material provided by the technical scheme is simple and convenient in construction method.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The embodiment provides a pair of anti-aging asphalt pre-paved waterproof roll, its structure top-down is respectively: the heat-resistant material comprises a heat-resistant material anti-sticking layer, a modified asphalt self-adhesive layer, a base layer, a modified asphalt self-adhesive layer and a polyethylene film layer, wherein the total thickness of the coiled material is 4.0 mm; the modified asphalt self-adhesive material comprises the following components in percentage by mass: 59% of mixed asphalt, 3% of oil-extended SBS, 3% of thermoplastic elastomer SAM 2%, 2% of solution polymerized styrene-butadiene rubber SSBR, 1% of tackifying resin, 2% of nano zinc oxide particles, 1% of organic montmorillonite, 10% of rubber powder and 20% of filler.
Further, the heat-resistant material anti-sticking layer is bauxite ceramic sand with 30-50 meshes of continuous gradation; the base course of the tire is a polyester tire with 350g per square meter and the dimensional stability less than or equal to 5 percent; the mixed asphalt is a mixture of 90# asphalt and 200# asphalt in a ratio of 2: 1; the oil-filled SBS is a star-shaped SBS with the oil filling rate of 33 percent; SAM is a linear molecular structure with 30 percent of styrene content; the SSBR is star-structured solution polymerized styrene-butadiene rubber with the styrene content of 25 percent; the tackifying resin is terpene resin; the anti-aging auxiliary agent is nano zinc oxide particles and organic montmorillonite, and the proportion is 2: 1; the rubber powder is 70-mesh tire rubber powder; the filler is talcum powder.
The preparation method of the anti-aging asphalt-based pre-paved waterproof coiled material comprises the following steps:
firstly, mixing and modifying the modified asphalt self-adhesive material, wherein the specific mixing and modifying process comprises the following steps: adding mixed asphalt in the formula ratio into a reaction kettle, heating to 130 ℃, and then starting stirring to melt, wherein the stirring frequency is 30-35 HZ; adding the oil-filled SBS, the SAM and the SSBR into the reaction kettle in sequence when the temperature rises to about 160 ℃, wherein the stirring frequency is 45-50 HZ; heating to 175 ℃, adding tackifying resin and rubber powder, continuously stirring, and mixing and modifying for 3h at the temperature; slowly adding the filler and the anti-aging auxiliary agent after the polymer is completely melted, keeping the temperature at 175 ℃, stirring for 1.5h, and cooling to 160 ℃ to prepare the modified asphalt self-adhesive material; then the waterproof coiled material is prepared by the processes of pre-dipping the base, covering self-adhesive material and forming by double rollers, laminating and sanding, cooling and flattening, rolling and packaging and the like in sequence.
Example 2
The embodiment provides an anti-aging asphalt-based pre-paved waterproof roll and a preparation method thereof, wherein the anti-aging asphalt-based pre-paved waterproof roll has the following structure from top to bottom: the heat-resistant material comprises a heat-resistant material anti-sticking layer, a modified asphalt self-adhesive layer, a base layer, a modified asphalt self-adhesive layer and a polyethylene film layer, wherein the thickness of a coiled material is 4.0 mm; the modified asphalt self-adhesive material comprises the following components in percentage by mass: 60% of mixed asphalt, 2% of oil-extended SBS, 2% of SAM, 2% of SSBR, 1% of tackifying resin, 2% of nano zinc oxide particles, 1% of organic montmorillonite, 10% of rubber powder and 20% of filler.
The heat-resistant material anti-sticking layer is shale ceramic sand with 30-50 meshes of continuous gradation; the base course of the tire is a polyester tire with the size stability of less than or equal to 5 percent, wherein the weight of the polyester tire is 320g per square meter; the mixed asphalt is a mixture of 90# asphalt and 200# asphalt in a ratio of 1.5: 1; the oil-filled SBS is a star-shaped SBS with the oil filling rate of about 30 percent; SAM is a linear molecular structure with 27 percent of styrene content; the SSBR is star-structured solution polymerized styrene-butadiene rubber with the styrene content of 30 percent; the tackifying resin is rosin resin; the anti-aging auxiliary agent is nano zinc oxide particles and organic montmorillonite, and the proportion is 1.7: 1; the rubber powder is 70-mesh tire rubber powder; the filler is talcum powder.
The preparation method of the anti-aging asphalt-based pre-paved waterproof coiled material comprises the following steps:
firstly, mixing and modifying the modified asphalt self-adhesive material, wherein the specific mixing and modifying process comprises the following steps: adding mixed asphalt in the formula ratio into a reaction kettle, heating to 130 ℃, and then starting stirring to melt, wherein the stirring frequency is 30-35 HZ; adding the oil-filled SBS, the SAM and the SSBR into the reaction kettle in sequence when the temperature rises to about 155 ℃, wherein the stirring frequency is 45-50 HZ; heating to 170 ℃, adding tackifying resin and rubber powder, continuously stirring, and mixing and modifying for 3.5h at the temperature; after the polymer is completely melted, slowly adding the filler and the anti-aging auxiliary agent, keeping the temperature at 170 ℃, stirring for 1.5h, and cooling to 165 ℃ to prepare the modified asphalt self-adhesive material; then the waterproof coiled material is prepared by the processes of pre-dipping the base, covering self-adhesive material and forming by double rollers, laminating and sanding, cooling and flattening, rolling and packaging and the like in sequence.
Example 3
The embodiment provides an anti-aging asphalt-based pre-paved waterproof roll and a preparation method thereof, wherein the anti-aging asphalt-based pre-paved waterproof roll has the following structure from top to bottom: the heat-resistant material comprises a heat-resistant material anti-sticking layer, a modified asphalt self-adhesive layer, a base layer, a modified asphalt self-adhesive layer and a polyethylene film layer, wherein the thickness of a coiled material is 4.0 mm; the modified asphalt self-adhesive material comprises the following components in percentage by mass: 61% of mixed asphalt, 2% of oil-extended SBS, 2% of SAM, 3% of SSBR, 1% of tackifying resin, 2% of nano zinc oxide particles, 1% of organic montmorillonite, 9% of rubber powder and 19% of filler.
The heat-resistant material anti-sticking layer is shale ceramic sand with 30-50 meshes of continuous gradation; the base course of the tire is 320 g/square meter, and the dimensional stability is less than or equal to 5 percent; the mixed asphalt is a mixture of 90# asphalt and 200# asphalt in a ratio of 2.5: 1; the oil-filled SBS is a star-shaped SBS with the oil filling rate of 40 percent; SAM is a linear molecular structure with 33 percent of styrene content; the SSBR is star-structured solution polymerized styrene-butadiene rubber with the styrene content of 30 percent; the tackifying resin is C5/C9 copolymerized petroleum resin; the anti-aging auxiliary agent is nano zinc oxide particles and organic montmorillonite, and the proportion is 2.4: 1; the rubber powder is 80-mesh tire rubber powder; the filler is heavy calcium carbonate.
The specific preparation method of the anti-aging asphalt-based pre-paved waterproof roll refers to example 1.
The preparation method of the anti-aging asphalt-based pre-paved waterproof coiled material comprises the following steps:
firstly, mixing and modifying the modified asphalt self-adhesive material, wherein the specific mixing and modifying process comprises the following steps: adding mixed asphalt in the formula ratio into a reaction kettle, heating to 140 ℃, and then starting stirring to melt, wherein the stirring frequency is 30-35 HZ; adding the oil-filled SBS, the SAM and the SSBR into the reaction kettle in sequence when the temperature rises to about 170 ℃, wherein the stirring frequency is 45-50 HZ; heating to 175 ℃, adding tackifying resin and rubber powder, continuously stirring, and mixing and modifying for 3h at the temperature; after the polymer is completely melted, slowly adding a filler material, a material and an anti-aging auxiliary agent, keeping the temperature at 175 ℃, stirring for 1.5h, and cooling to 165 ℃ to obtain the modified asphalt self-adhesive material; then the waterproof coiled material is prepared by the processes of pre-dipping the base, covering self-adhesive material and forming by double rollers, laminating and sanding, cooling and flattening, rolling and packaging and the like in sequence.
Comparative example 1
The comparative example provides a common asphalt-based pre-paved waterproof coiled material, which comprises a mullite sand anti-sticking layer, a modified asphalt self-sticking layer, a polyester base layer, a modified asphalt self-sticking layer and a polyethylene film layer, wherein the thickness of the coiled material is 4.0mm, the mullite sand is in 30-50 meshes of continuous gradation, and the modified asphalt self-sticking material comprises the following components in percentage by mass: 60% of asphalt, 3% of SBS, 3% of butadiene styrene rubber, 2% of tackifying resin, 12% of rubber powder and 20% of filler.
Comparative example 2
The comparative example provides an asphalt-based pre-paved waterproof coiled material which is obtained by replacing 30-50-mesh continuous graded ceramic sand with 30-50-mesh continuous graded mullite sand anti-sticking material in example 1, and is unchanged in other structures and formula compositions.
Performance testing
According to the GB/T23457-2017 standard requirements, part of physical properties of the anti-aging asphalt-based pre-paved waterproof roll provided in the embodiment 1-3 and the part of physical properties of the common asphalt-based pre-paved waterproof roll provided in the comparative example 1 and the comparative example 2 are tested, and the test results are shown in Table 1.
Table 1 partial physical Property measurement results
It can be seen from table 1 that the aging-resistant asphalt-based pre-laid waterproof rolls provided in examples 1 to 3 have excellent aging resistance, and after the rolls are subjected to heat treatment, ultraviolet treatment and exposure for 50 days, the peel strength of the lap joint and the peel strength of post-cast concrete are higher than those of the common asphalt-based pre-laid waterproof rolls provided in comparative examples 1 and 2.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (3)
1. The utility model provides an ageing-resistant pitch base is waterproof coiled material of spreading in advance which characterized in that, its structure top-down is respectively: the heat-resistant material comprises a heat-resistant material anti-sticking layer, a modified asphalt self-adhesive layer, a base layer, a modified asphalt self-adhesive layer and a polyethylene film layer, wherein the thickness of a coiled material is 4.0 mm; the modified asphalt self-adhesive material comprises the following components in percentage by mass: 58-62% of mixed asphalt, 2-4% of oil-extended SBS, 2-3% of thermoplastic rubber SAM, 2-3% of solution polymerized styrene-butadiene rubber, 1-2% of tackifying resin, 2-3% of anti-aging auxiliary agent, 9-12% of rubber powder and 18-22% of filler;
the mixed asphalt is a mixture of 90# heavy-traffic asphalt and 200# asphalt blended by soft components, the penetration degree of the mixed asphalt is 120-130, and the ratio of (1.5-2.5) to (1);
the thermoplastic rubber SAM is of a linear molecular structure with the styrene content of 27-33%; the oil-filled SBS is a star-structure SBS with the oil filling rate of 30-36%;
the solution polymerized styrene-butadiene rubber is star-shaped SSBR with the styrene content of 20-30 percent;
the tackifying resin is one or more of C5/C9 copolymerized petroleum resin, terpene resin and rosin resin;
the anti-aging auxiliary agent is nano zinc oxide and organic montmorillonite, and the proportion is (1.6-2.4): 1;
the rubber powder is one or more of 60-80 mesh tire rubber powder and butyl rubber powder; the filler is one or more of calcium carbonate, talcum powder, heavy calcium, light calcium and calcined kaolin;
the heat-resistant material anti-sticking layer comprises 30-50-mesh ceramic sand in continuous gradation.
2. The anti-aging asphalt-based pre-paved waterproof roll material as claimed in claim 1, wherein the base course layer is a polyester tire having a gram weight of more than 300g per square meter and a dimensional change rate of less than 0.5%.
3. The preparation method of the aging-resistant asphalt-based pre-paved waterproof roll according to claim 1 or 2, which is characterized by sequentially comprising the following steps: mixing and modifying the modified asphalt self-adhesive material, pre-dipping the base, covering the base with a material, molding by a pair roller, covering with a film, sanding, cooling, flattening, rolling and packaging; the mixing modification process of the modified asphalt self-adhesive material specifically comprises the following steps: adding mixed asphalt in a corresponding formula proportion into a reaction kettle, heating to 120-140 ℃, and then starting stirring to melt, wherein the stirring frequency is 30-35 HZ; adding the oil-filled SBS, SAM and SSBR into the reaction kettle in sequence when the temperature rises to about 150-165 ℃, wherein the stirring frequency is 45-50 HZ; heating to 165-175 ℃, adding tackifying resin and rubber powder, continuously stirring, and mixing and modifying for 3-4 h at the temperature; and after the polymer is completely melted, slowly adding the filler and the anti-aging auxiliary agent, keeping the temperature at 170-175 ℃, stirring for 1-1.5 h, and cooling to 160-170 ℃ to obtain the material for molding.
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| CN111748295A (en) * | 2020-07-07 | 2020-10-09 | 江苏凯伦建材股份有限公司 | Asphalt-based waterproof coiled material and preparation method thereof |
| CN112592661A (en) * | 2020-12-01 | 2021-04-02 | 远大洪雨（唐山）防水材料有限公司 | Aging-resistant modified asphalt waterproof coiled material and preparation method thereof |
| CN114181662A (en) * | 2021-12-13 | 2022-03-15 | 重庆中防德邦防水技术有限公司 | High-adhesion high-strength composite modified asphalt rubber material and preparation method thereof |
| CN114193867B (en) * | 2021-12-14 | 2024-05-17 | 唐山凯伦新材料科技有限公司 | Preparation method of asphalt-based pre-laid waterproof coiled material |
| CN115302877A (en) * | 2022-08-08 | 2022-11-08 | 永康市海峰防水建材有限公司 | High-durability polymerization modified asphalt waterproof coiled material and preparation process thereof |
| CN116814160B (en) * | 2023-05-26 | 2023-12-19 | 佛山市科顺建筑材料有限公司 | Reaction modified asphalt waterproof coiled material coating material composition, waterproof coiled material coating material, preparation method and application thereof |
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