CN114921226A - Hot-melt rubber asphalt waterproof coating and preparation method thereof, hot-melt rubber asphalt waterproof coating sealing adhesive tape and waterproof coiled material lapping method - Google Patents
Hot-melt rubber asphalt waterproof coating and preparation method thereof, hot-melt rubber asphalt waterproof coating sealing adhesive tape and waterproof coiled material lapping method Download PDFInfo
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- CN114921226A CN114921226A CN202210617669.XA CN202210617669A CN114921226A CN 114921226 A CN114921226 A CN 114921226A CN 202210617669 A CN202210617669 A CN 202210617669A CN 114921226 A CN114921226 A CN 114921226A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 194
- 238000000576 coating method Methods 0.000 title claims abstract description 148
- 229920001971 elastomer Polymers 0.000 title claims abstract description 148
- 239000005060 rubber Substances 0.000 title claims abstract description 148
- 239000011248 coating agent Substances 0.000 title claims abstract description 146
- 239000012943 hotmelt Substances 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 title claims description 46
- 239000012945 sealing adhesive Substances 0.000 title description 13
- 229920000587 hyperbranched polymer Polymers 0.000 claims abstract description 41
- 239000004698 Polyethylene Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 26
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 24
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- 239000003208 petroleum Substances 0.000 claims abstract description 20
- -1 softener Substances 0.000 claims abstract description 15
- XPVIQPQOGTVMSU-UHFFFAOYSA-N (4-acetamidophenyl)arsenic Chemical compound CC(=O)NC1=CC=C([As])C=C1 XPVIQPQOGTVMSU-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920013640 amorphous poly alpha olefin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
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- 229920000573 polyethylene Polymers 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 12
- 125000000524 functional group Chemical group 0.000 claims abstract description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 8
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 37
- 238000003756 stirring Methods 0.000 claims description 35
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 20
- 239000003973 paint Substances 0.000 claims description 17
- 238000004078 waterproofing Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
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- 239000003921 oil Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011247 coating layer Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
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- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 239000010692 aromatic oil Substances 0.000 claims description 3
- 239000010779 crude oil Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 239000004636 vulcanized rubber Substances 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000010276 construction Methods 0.000 description 51
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 239000002174 Styrene-butadiene Substances 0.000 description 1
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- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
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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
-
- 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
-
- 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
-
- 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
- C09J121/00—Adhesives based on unspecified rubbers
-
- 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
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
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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
- C09J191/00—Adhesives based on oils, fats or waxes; Adhesives based on derivatives thereof
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- 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
- C09J7/10—Adhesives in the form of films or foils without carriers
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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
- C09J7/35—Heat-activated
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
-
- 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
-
- 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
- E04D5/14—Fastening means therefor
- E04D5/148—Fastening means therefor fastening by gluing
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C09J2495/00—Presence of bitume
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention provides a hot-melt rubber asphalt waterproof coating and a preparation method thereof, and a hot-melt rubber asphalt waterproof coating sealing tape and a waterproof roll lapping method. The raw materials for preparing the waterproof coating comprise: 90# asphalt, 200# asphalt, softener, polyethylene wax, star SBS, SSBR, rubber powder, rubber activator, hyperbranched polymer, APAO, C9 petroleum resin and filler; wherein, the molecule end of the hyperbranched polymer contains active functional groups, and the active functional groups are amino and hydroxyl; the weight average molecular weight of the hyperbranched polymer is 2000-5000, and based on the weight average molecular weight of the hyperbranched polymer, the weight average molecular weight of the hyperbranched polymer is 0.05-1 wt% of amino and 0.7-2.5 wt% of hydroxyl; the branching degree of the hyperbranched polymer is 0.2-0.6; the molecular formula of the hyperbranched polymer is shown as formula I, wherein R is-CH 2 ‑CH 2 ‑O‑CH 2 ‑CH 2 -; the hot-melt rubber asphalt waterproof coating has good strength and water pressure resistance, and a coating film with the thickness of 2mm can resist 0.3MPa water pressure.
Description
Technical Field
The invention belongs to the technical field of waterproofing, and particularly relates to a hot-melt rubber asphalt waterproof coating and a preparation method thereof, a hot-melt rubber asphalt waterproof coating sealing tape and a waterproof roll lapping method.
Background
In recent years, the non-curing hot-melt rubber asphalt waterproof coating is widely applied to the domestic waterproof market, is not cured for a long time and has strong self-healing capability, and simultaneously can effectively solve the problem of quick boiling when being used as a bottom auxiliary coating to be compounded with a coiled material. However, the non-cured asphalt coating still has the following defects: 1) due to the characteristics of no solidification and easy deformation and flowing at high temperature, the further application of the composite material in the building waterproof field of sloping roofs, vertical walls, composite with exposed coiled materials and the like is further limited. 2) The non-cured hot-melt rubber asphalt waterproof coating has low strength, can well seal base cracks and capillary holes, but can cause low bonding strength and water pressure resistance, when the non-cured hot-melt rubber asphalt waterproof coating is applied to underground waterproof engineering with confined water, the base and the waterproof layer are very easy to peel off, and once the upper waterproof layer compounded with the non-cured hot-melt rubber asphalt waterproof coating leaks, the 'coil coating' composite waterproof system leaks, so that the risk is high. 3) At present, for a non-cured coil coating composite system, after non-cured construction is finished, a lap joint edge still needs to be processed independently, open fire construction cannot be completely avoided, and construction efficiency is influenced. Based on the current market environmental requirements, open fire construction is more and more limited, which undoubtedly has great influence on the application of SBS modified asphalt waterproof coiled materials and non-cured coil coating composite systems.
In view of the problems of low strength and no film formation of the non-cured hot-melt rubber asphalt waterproof coating, a high-strength anti-slip water-based asphalt coating mainly containing more asphalt latex is developed in the market at present, but the water-based asphalt coating has low solid content, long film formation time and needs to be thickened for many times, open fire construction needs to be carried out again after film formation, and the construction progress is seriously influenced.
The asphalt waterproof coiled material is a waterproof product which has the largest application amount in the current building waterproof market and is most trusted by customers, however, the problem of the short edge lap joint of the modified asphalt waterproof coiled material with the surface of fine sand and mineral aggregate is the biggest waterproof weak point: the surface is the waterproofing membrane of fine sand or mineral aggregate, use traditional sand setting technology during minor face overlap joint, the mineral aggregate through the minor face of fire roast, press fine sand or mineral aggregate down, spill out the asphalt oil then carry out the minor face overlap joint, it is high to construction worker's process level requirement, the grit is pressed to the child base, easily cause the potential water hazard of leaking, and the national standard does not restrict the minor face overlap joint of fine sand, mineral aggregate at present, the lapped disorderly image of asphalt waterproofing membrane minor face that causes more, its peel strength is far less than the requirement of national standard to long limit overlap joint (≧ 1.5N/mm). Based on the method, the hidden danger of water leakage of the modified asphalt waterproof coiled material of the fine sand and the mineral aggregate is greatly increased.
Disclosure of Invention
The invention aims to provide a hot-melt rubber asphalt waterproof coating and a preparation method thereof, a hot-melt rubber asphalt waterproof coating sealing tape and a waterproof coiled material lapping method aiming at the defects of the prior art; the hot-melt rubber asphalt waterproof coating prepared by the invention has the advantages of high solid content, short curing time, water pressure resistance, one-time film forming, quick forming and the like, and can solve the technical defects of non-cured hot-melt rubber asphalt waterproof coatings and water-based asphalt coatings. The waterproof coiled material lapping method provided by the invention utilizes the hot-melt rubber asphalt waterproof coating or the hot-melt rubber asphalt waterproof coating sealing tape as the adhesive layer, and can solve the problem of lapping of the short edges of the modified asphalt waterproof coiled material of fine sand and mineral granules.
In order to achieve the above object, a first aspect of the present invention provides a hot-melt rubber asphalt waterproof coating material, which is prepared from the following raw materials: 90# asphalt, 200# asphalt, softener, polyethylene wax, star SBS, SSBR, rubber powder, rubber activator, hyperbranched polymer, APAO, C9 petroleum resin and filler;
wherein, the molecular end of the hyperbranched polymer contains active functional groups, and the active functional groups are amino and hydroxyl;
the hyperbranched polymer has a weight average molecular weight (measured by gel permeation chromatography) of 2000-5000, wherein the weight average molecular weight of the hyperbranched polymer is 0.05-1 wt% of amino groups, and the weight average molecular weight of the hyperbranched polymer is 0.7-2.5 wt% of hydroxyl groups; the degree of branching (29Si NMR) of the hyperbranched polymer is 0.2-0.6;
the molecular formula of the hyperbranched polymer is shown as formula I, wherein R is-CH 2 -CH 2 -O-CH 2 -CH 2 -；
The hyperbranched polymer (the molecular formula is shown as formula I) is a polymer with a three-dimensional molecular structure; the polymer molecule end contains a large amount of active functional groups, greatly improves the collision probability with the active groups in the asphalt, can react with the asphalt, and has good compatibility, high temperature resistance and strength. Meanwhile, the molecular volume is large, the steric hindrance is small, and the low viscosity and the good processing and application performance can be considered while the heat resistance and the strength are high.
The hyperbranched polymer is preferably a hyperbranched polymer provided by Beijing aviation materials research institute, has a mark of HAHBPs, is different from star-shaped and linear polymers, has extremely small steric hindrance and more active groups, and can ensure that the coating has good heat resistance and ultrahigh cohesive strength while maintaining low viscosity.
According to the invention, preferably, by weight, the 90# asphalt is 60-80 parts, the 200# asphalt is 5-10 parts, the softener is 5-10 parts, the polyethylene wax is 3-8 parts, the star SBS is 12-16 parts, the SSBR is 1-3 parts, the rubber powder is 10-15 parts, the rubber activator is 0.05-0.1 part, the hyperbranched polymer is 1-5 parts, the APAO is 5-10 parts, the C9 petroleum resin is 5-9 parts, and the filler is 10-15 parts.
According to the invention, preferably, the 90# asphalt is 90# petroleum asphalt; the 200# asphalt is petroleum asphalt with the penetration of 200-240dm at 0 ℃;
the softening agent is aromatic oil and/or two-line-reduced oil;
the 90# asphalt, the 200# asphalt and the softener all need to be derived from the same crude oil.
According to the present invention, preferably, the weight average molecular weight of the star-shaped SBS is 18 to 25 ten thousand, and the mass percentage content of styrene is 30%;
the SSBR is solution polymerized styrene butadiene rubber, and the weight average molecular weight of the SSBR is 8-15 ten thousand;
the rubber powder is vulcanized rubber powder with the particle size of 150 meshes;
the rubber activator is an aromatic disulfide.
The rubber activator of the present invention is preferably a solid powder particle of an aromatic disulfide.
The solid powder particles of the aromatic disulfide can obviously reduce the viscosity of the asphalt coating, improve the adaptability with a base layer, improve the aging performance and greatly slow down the segregation of the hot-melt rubber coating.
In the present invention, the SSBR is preferably in the expanded pellet state.
The SSBR of the invention can endow the hot-melt rubber asphalt waterproof coating with excellent low-temperature performance and initial viscosity, and can avoid the problems of easy agglomeration and short shelf life caused by using the traditional powder SBR.
The polyethylene wax (EVA wax) provided by the invention provides excellent adhesiveness for the hot-melt rubber asphalt waterproof coating, so that the hot-melt rubber asphalt waterproof coating, a base layer and a coiled material achieve an excellent full-bonding effect.
In the invention, Amorphous Polyolefin (APAO) and C9 petroleum resin are used as modifiers for improving heat resistance and adhesiveness, and are used for improving heat resistance and adhesiveness of the hot-melt rubber asphalt waterproof coating.
According to the present invention, preferably, the filler is at least one of light calcium carbonate, heavy calcium carbonate, talcum powder and fly ash, and is preferably 800-mesh light calcium carbonate powder.
In the present invention, the filler is used to slow the segregation problem of the asphalt coating.
The second aspect of the present invention provides a preparation method of a hot-melt rubber asphalt waterproof coating material, comprising: mixing and reacting 90# asphalt, 200# asphalt, a softening agent, star-shaped SBS, SSBR, rubber powder and a rubber activating agent; then adding hyperbranched polymer and polyethylene wax, and stirring for reaction; and finally, mixing the hot-melt rubber asphalt waterproof coating with APAO, C9 petroleum resin and a filler to prepare the hot-melt rubber asphalt waterproof coating.
According to the present invention, preferably, the preparation method comprises: mixing, stirring and heating the 90# asphalt, the 200# asphalt and the softening agent to a first temperature, adding the star-shaped SBS and the SSBR, shearing and grinding to a homogeneous phase, adding the rubber powder and the rubber activating agent, and stirring and reacting at a second temperature; then adding the hyperbranched polymer and the polyethylene wax, and stirring for reaction at a third temperature; adding the APAO and the C9 petroleum resin again, and continuing stirring; and finally, adding the filler, and uniformly stirring to obtain the hot-melt rubber asphalt waterproof coating.
According to the invention, preferably, the first temperature is 130-180 ℃, the second temperature is 180-200 ℃, and the third temperature is 170-190 ℃.
In the present invention, the stirring reaction is a reaction under stirring.
In the invention, the stirring reaction is carried out for 60-90 min at the second temperature of 180-200 ℃.
The third aspect of the present invention provides a hot-melt rubber asphalt waterproof coating sealing tape, which sequentially comprises: PE isolation film layer, the hot melt rubber asphalt waterproof coating layer and PET isolation film layer;
preferably, the PE isolation film layer is made of a hot-melt polyethylene film.
In the invention, based on the hot-melt rubber asphalt waterproof coating, an asphalt-based hot-melt sealing tape is developed, and the short-edge lap joint can be carried out quickly under the condition of allowing open fire construction, so that the short-edge lap joint strength is higher.
Aiming at a construction site capable of being operated on open fire, the invention develops a sealing adhesive tape based on the hot-melt rubber asphalt waterproof coating, the sealing adhesive tape has the width of (100-200) mm and the thickness of (1-3) mm according to the overlapping requirement of short edges, and the production process comprises the following steps:
coating the prepared hot-melt rubber asphalt waterproof coating on a PET isolation film, coating the film at the temperature of 160-.
Preferably, the hot melt sealing tape of the present invention is used by: pre-laying and cutting the sealing adhesive tape at the overlapping edge according to different lengths of the overlapping edge, removing the isolating film, baking the sealing adhesive tape by fire or a hot air welding gun until the sealing adhesive tape is fully melted, and then sealing and compacting to complete the overlapping of the overlapping edge.
The fourth aspect of the invention provides a modified asphalt waterproof coiled material lapping method, which comprises the following steps: and (3) lapping the lapping surfaces of the modified asphalt waterproof coiled materials by using the hot-melt rubber asphalt waterproof coating or the hot-melt rubber asphalt waterproof coating sealing adhesive tape as an adhesive layer.
In the invention, based on the hot-melt rubber asphalt waterproof coating, a new coil coating composite process is developed, secondary open fire processing on the lap joint edge is not needed, the problem of insufficient lap joint strength of the short edges of the shale and fine sand modified asphalt waterproof coiled material can be particularly solved, and the waterproof quality is greatly improved.
Preferably, when the hot-melt rubber asphalt waterproof coating is used for lap joint treatment, the hot-melt rubber asphalt waterproof coating is hot-melted to (140-.
Preferably, when the hot-melt rubber asphalt waterproof coating sealing tape is used for lap joint treatment, the sealing tape is directly pre-laid and cut on the lapping surfaces of the mineral aggregate according to different sizes of the lapping surfaces of the mineral aggregate, the isolating film is removed, the sealing tape is baked by a fire or hot air welding gun until the sealing tape is sufficiently melted, and then the mineral aggregate is wrapped by the hot-melt rubber asphalt waterproof coating layer through compaction so as to realize lap joint treatment between the lapping surfaces of the mineral aggregate modified asphalt waterproof coiled material.
The technical scheme of the invention has the following beneficial effects:
(1) the hot-melt rubber asphalt waterproof coating disclosed by the invention is high in solid content (more than or equal to 98%), short in curing time, capable of forming a film at one time and quickly formed; the coating has good strength and water pressure resistance, can resist 0.3MPa water pressure when the thickness of the coating is 2mm, and has good anti-slip performance for sloping roofs and vertical walls.
(2) Different from the conventional non-curing construction and waterproof effect, the hot-melt rubber asphalt waterproof coating disclosed by the invention has the advantages that when a coiled material is subjected to blade coating or spraying, the large surface and the overlapping edge can be simultaneously carried out, the overlapping edge does not need to be independently reserved for subsequent independent treatment, the construction efficiency can be improved by 10% -20%, and the peeling strength of the seam of the overlapping edge can be obviously improved by 30% -100% compared with that of the traditional process. Particularly, the peeling strength of the short side lap joint of the shale and fine sand waterproof coiled material can be improved by 150-300%. The waterproof quality can be greatly improved.
(3) Different from the conventional curing type water-based emulsified asphalt coating: the construction thickness of the invention can reach (1-3) mm, and the construction efficiency is improved by several times after the solidification after cooling.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural view of a hot-melt rubber asphalt waterproofing paint sealing tape according to an embodiment of the present invention.
Description of the reference numerals
1. PE isolation film layer 2, hot melt rubber asphalt waterproof coating layer 3 and PET isolation film layer
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention is further illustrated by the following examples:
the amounts referred to in the following examples are in parts by weight;
the 90# asphalt used in the following examples was 90# petroleum asphalt; the 200# asphalt is petroleum asphalt with the penetration of 200 and 240dm at 0 ℃; the softening agent is aromatic oil; the 90# asphalt, the 200# asphalt and the softener are all from the same crude oil.
The weight average molecular weight of the star SBS is 18-25 ten thousand, and the mass percentage content of the styrene is 30%;
the SSBR is solution polymerized styrene butadiene rubber, has the weight average molecular weight of 8-15 ten thousand, is in a puffed particle state, is purchased from Yanshan petrochemical and has the trademark of SSBR-2636.
The molecular formula of the used hyperbranched polymer is shown as formula I; the molecular end of the hyperbranched polymer contains active functional groups, and the active functional groups are amino and hydroxyl; the weight average molecular weight (gel permeation chromatography test) of the hyperbranched polymer is 2000-5000, and based on the weight average molecular weight of the hyperbranched polymer, the weight average molecular weight of the hyperbranched polymer is 0.05-1 wt% of amino and 0.7-2.5 wt% of hydroxyl; the degree of branching (29Si NMR method) of the hyperbranched polymer is 0.2-0.6; purchased from the Beijing institute of aerospace materials under the designation HAHBPs.
The used rubber powder is vulcanized rubber powder with the particle size of 150 meshes;
the rubber activator used was solid powder particles of an aromatic disulfide available from Amur gold rubber auxiliaries, Inc. under the designation B-450.
The light calcium is 800 mesh light calcium powder.
The double-sided PE film SBS modified asphalt waterproof coiled material used in the following embodiments is a product with the national standard of SBS PYPEPE 4-10; the exposed shale SBS modified asphalt waterproof coiled material is a product with the national standard of SBS PYMPE 4-10.
The following examples were tested with reference to QSY YHF 0154-2021 standard for each test item on the performance of the prepared hot-melt rubber asphalt waterproof paint; the hot-melt rubber asphalt waterproof coating after construction is tested according to the GB/T328 standard.
The coil coating composite and lap edge treatment sections of examples 1-5 below: the non-curing coil coating composition comprises the following components: heating the non-cured asphalt coating, then blade-coating the non-cured asphalt coating to a base layer, then paving and pasting the waterproof coiled material, and reserving a short-edge overlapping edge and a long-edge overlapping edge. And after finishing the coil coating compounding, performing open fire thermal bonding on the reserved short edge lap joint and the reserved long edge lap joint, and finishing the construction after finishing the edge sealing.
The traditional hot melting construction comprises the following steps: and baking the asphalt surface of the asphalt waterproof coiled material with open fire, and then bonding the asphalt surface to the base layer to complete the waterproof layer construction.
The lapped construction of traditional heavy husky hot melt minor face does: heating fine sand and the overlapping edge of the short edge of the mineral aggregate surface by open fire, pressing the heated sand by using a spatula to enable mineral aggregate to sink into asphalt, heating an upper coiled material, performing thermal bonding and edge sealing, and finishing the overlapping.
The specific preparation method and coil coating compounding and overlap edge treatment process of comparative example 1 rubberized asphalt paint referred to in the test data in example 1 below are as follows:
comparative example 1 the preparation method of the rubber asphalt paint is different from the preparation method of the hot-melt rubber asphalt waterproof paint in example 1, 1.1, only in that 2 parts of the hyperbranched polymer is replaced by 2 parts of SBS, and other components, the using amount and the preparation process are the same as those in example 1.
Comparative example 1 the roll coating compounding and overlap treatment process of the rubberized asphalt paint was the same as the 1.2 roll coating compounding and overlap treatment process of example 1, except that the rubberized asphalt paint of comparative example 1 was selected for construction.
Example 1
The embodiment provides a hot-melt rubber asphalt waterproof coating, and a coil coating compounding and lap edge processing method by using the hot-melt rubber asphalt waterproof coating.
1.1 preparation of Hot-melt rubber asphalt waterproofing paint
Mixing 60 parts of 90# asphalt, 5 parts of 200# asphalt and 10 parts of softening oil, stirring and heating to 160 ℃, adding 12 parts of star-shaped SBS and 2 parts of SSBR, shearing and grinding to be homogeneous, adding 15 parts of rubber powder and 0.05 part of rubber activator, stirring and reacting for 60min at 180 ℃, then adding 2 parts of hyperbranched polymer and 3 parts of EVA wax, stirring and reacting for 30min at 175 ℃, sequentially adding 5 parts of APAO and 5 parts of C9 petroleum resin again, continuously stirring for 30min, finally adding 10 parts of light calcium carbonate, and uniformly stirring to obtain the hot-melt rubber asphalt waterproof coating.
As shown in table 1, the hot-melt rubber asphalt waterproofing paint prepared in example 1 was tested for the following properties:
TABLE 1
As can be seen from Table 1: due to the addition of the hyperbranched polymer, the hot-melt rubber asphalt waterproof coating of the embodiment has the advantages that on the premise of equivalent viscosity, the high temperature, low temperature, extension, aging and other aspects are obviously improved, the hot-melt rubber asphalt waterproof coating can resist 0.2MPa of water pressure, can be used as an independent waterproof layer, has the elongation rate of more than 1000 percent, and has stronger elastic recovery, creep and base layer adaptability.
1.2 coil coating compounding and overlap edge treatment
The hot-melt rubber asphalt waterproof coating prepared in 1.1 in example 1 is hot-melted to 150 ℃ by using an electric heating device, then a scraper blade is used for blade coating construction, the thickness of the coating is 2mm, a double-sided PE film SBS modified asphalt waterproof coiled material is immediately paved and attached after the blade coating is finished, a base layer and a lap edge are compacted, and the waterproof construction is finished. Wherein, the hot-melt rubber asphalt waterproof coating prepared by 1.1 is used as an adhesive layer to carry out lap joint treatment between the lap joint surfaces of the double-sided PE film SBS modified asphalt waterproof coiled material.
As shown in table 2, the hot-melt rubber asphalt waterproof coating after construction was tested for the following relevant properties:
TABLE 2
As can be seen from Table 2: compared with the non-curing material coil coating compounding, the hot melt coating lapping method improves the lapping edge peel strength by about 5 times, improves the lapping edge shear strength by about 12 times, and improves the base layer peel strength by about 5 times.
Compared with the traditional hot melting construction process, the embodiment of the invention can avoid open fire construction and improve the peel strength by about 60 percent. The waterproof quality and the construction efficiency are greatly improved, and the potential safety hazard is reduced.
Example 2
The embodiment provides a hot-melt rubber asphalt waterproof coating, and a coil coating compounding and lap edge processing method by using the hot-melt rubber asphalt waterproof coating.
2.1 preparation of Hot-melt rubber asphalt waterproofing paint
Mixing 70 parts of 90# asphalt, 6 parts of 200# asphalt and 8 parts of softening oil, stirring and heating to 160 ℃, adding 14 parts of star-shaped SBS and 2 parts of SSBR, shearing and grinding to be homogeneous, adding 13 parts of rubber powder and 0.05 part of rubber activator, stirring and reacting for 80min at 180 ℃, then adding 3 parts of hyperbranched polymer and 5 parts of EVA wax, stirring and reacting for 30min at 175 ℃, sequentially adding 7 parts of APAO and 5 parts of C9 petroleum resin again, continuously stirring for 30min, finally adding 12 parts of light calcium carbonate, and uniformly stirring to obtain the hot-melt rubber asphalt waterproof coating.
As shown in table 3, the hot-melt rubber asphalt waterproofing paint prepared in test example 2 was tested for the following properties:
TABLE 3
As can be seen from Table 3: the hot-melt rubber asphalt waterproof coating can resist 0.2MPa of water pressure, can resist 90 ℃ of slippage, can be used as an independent waterproof layer, has the elongation rate of more than 1000 percent, and has strong elastic recovery, creep and base layer adaptability.
2.2 coil coating compounding and Lap edge treatment
The hot-melt rubber asphalt waterproof coating prepared in 2.1 in the example 2 is hot-melted to 150 ℃ by using an electric heating device, then a scraper blade is used for blade coating construction, the thickness of the coating is 2mm, a double-sided PE film SBS modified asphalt waterproof coiled material is immediately paved and attached after the blade coating is finished, a base layer and a lap joint edge are compacted, and the waterproof construction is finished. Wherein, the lapping surface of the double-sided PE film SBS modified asphalt waterproof coiled material is lapped by using the hot-melt rubber asphalt waterproof coating prepared by 2.1 as an adhesive layer.
As shown in table 4, the hot-melt rubber asphalt waterproof coating after construction was tested for the following relative properties:
TABLE 4
As can be seen from Table 4: compared with the non-curing material coil coating compounding, the hot melt coating lapping method improves the lapping edge peeling strength by about 5 times, improves the lapping edge shearing strength by about 13 times, and improves the base layer peeling strength by about 5 times.
Compared with the traditional hot melting construction process, the embodiment of the invention can avoid open fire construction and improve the peel strength by about 70 percent.
Example 3
The embodiment provides a hot-melt rubber asphalt waterproof coating, and a coil coating compounding and lap edge processing method by using the hot-melt rubber asphalt waterproof coating.
3.1 preparation of Hot-melt rubber asphalt waterproofing paint
Mixing 75 parts of 90# asphalt, 10 parts of 200# asphalt and 5 parts of softening oil, stirring and heating to 160 ℃, adding 15 parts of star-shaped SBS and 2.5 parts of SSBR, shearing and grinding to be homogeneous, adding 13 parts of rubber powder and 0.07 part of rubber activator, stirring and reacting at 180 ℃ for 80min, then adding 3 parts of hyperbranched polymer and 5 parts of EVA wax, stirring and reacting at 175 ℃ for 30min, sequentially adding 8 parts of APAO and 5 parts of C9 petroleum resin again, continuously stirring for 30min, finally adding 12 parts of light calcium carbonate, and uniformly stirring to obtain the hot-melt rubber asphalt waterproof coating.
As shown in table 5, the hot-melt rubber asphalt waterproofing paint prepared in test example 3 was tested for the following properties:
TABLE 5
As can be seen from Table 5: the hot-melt rubber asphalt waterproof coating can resist 0.3MPa of water pressure, can resist 105 ℃ of slippage, can be used as an independent waterproof layer, has the elongation rate of more than 1000 percent, and has strong elastic recovery, creep and base layer adaptability.
3.2 coil coating compounding and overlap edge treatment
The hot-melt rubber asphalt waterproof coating prepared by 3.1 in the embodiment 3 is hot-melted to 150 ℃ by using an electric heating device, then a scraper blade is used for blade coating construction, the coating thickness is 2mm, the shale SBS modified asphalt waterproof coiled material for exposure is immediately paved and attached after blade coating is completed, a base layer and a lap joint edge are compacted, the hot-melt rubber asphalt waterproof coating prepared by 3.1 at 150 ℃ is blade-coated as a bonding layer in a short edge lap joint, and the blade coating thickness is 2mm, so that the waterproof construction is completed.
As shown in table 6, the long-side lap joint comparative test of the hot-melt rubber asphalt waterproof coating after construction has the following relevant performances:
TABLE 6
From table 6, it can be seen that: compared with the non-curing material coil coating compounding, the hot melt coating lapping method improves the lapping edge peeling strength by about 6 times, improves the lapping edge shearing strength by about 13 times, and improves the base layer peeling strength by about 6 times.
Compared with the traditional hot melting construction process, the embodiment of the invention can not only avoid open fire construction, but also improve the peeling strength by about 90!
As shown in table 7, the short side lap joint comparative test of the hot-melt rubber asphalt waterproof coating after construction has the following relevant performances:
TABLE 7
| Serial number | Item | Traditional desilting hot melt lap joint | 3.1 Hot melt coating Lap prepared |
| 1 | Construction time/S | 90 | 30 |
| 2 | Short edge lap peel strength/N/mm | 1.08 | 2.42 |
As can be seen from the data in table 7: the hot-melt rubber asphalt waterproof coating is directly used for blade coating construction, the construction time is reduced by 60S, and the construction efficiency can be improved by 200%. Besides, the construction efficiency is considered, the short edge lap joint peeling strength is improved by about 1.3 times, and the hidden danger of the short edge lap joint of the exposed coiled material is greatly reduced.
Example 4
The embodiment provides a hot-melt rubber asphalt waterproof coating, and a coil coating compounding and lap edge processing method by using the hot-melt rubber asphalt waterproof coating.
4.1 preparation of Hot-melt rubber asphalt waterproofing paint
Mixing, stirring and heating 80 parts of 90# asphalt, 10 parts of 200# asphalt and 7 parts of softening oil to 160 ℃, adding 15 parts of star-shaped SBS and 3 parts of SSBR, shearing and grinding to be homogeneous, adding 10 parts of rubber powder and 0.07 part of rubber activator, stirring and reacting for 80min at 180 ℃, then adding 3 parts of hyperbranched polymer and 8 parts of EVA wax, stirring and reacting for 30min at 175 ℃, sequentially adding 10 parts of APAO and 9 parts of C9 petroleum resin again, continuously stirring for 30min, finally adding 13 parts of light calcium carbonate, and uniformly stirring to obtain the hot-melt rubber asphalt waterproof coating.
As shown in table 8, the hot-melt rubber asphalt waterproofing paint prepared in test example 4 was tested for the following properties:
TABLE 8
As can be seen from table 8: the hot-melt rubber asphalt waterproof coating can resist 0.3MPa of water pressure, can resist 115 ℃ of slippage, can be used as an independent waterproof layer, has the elongation rate of more than 1000 percent, and has strong elastic recovery, creep and base layer adaptability.
4.2 coil coating composition and overlap edge treatment
The hot-melt rubber asphalt waterproof coating prepared by 4.1 in the example 4 is hot-melted to 170 ℃ by using an electric heating device, then a scraper blade is used for blade coating construction, the thickness of the coating is 2mm, the shale SBS modified asphalt waterproof coiled material for exposure is immediately paved and attached after blade coating is finished, a base layer and a lap joint edge are compacted, the hot-melt rubber asphalt waterproof coating prepared by 4.1 with the temperature of 150 ℃ is used for blade coating as a bonding layer in a short edge lap joint, the blade coating thickness is 2mm, and the waterproof construction is finished.
As shown in table 9, the long-side lap joint comparative test of the hot-melt rubber asphalt waterproof coating after construction has the following relevant properties:
TABLE 9
As can be seen from table 9: compared with the non-curing material coil coating compounding, the hot melt coating lapping method improves the lapping edge peeling strength by about 6 times, improves the lapping edge shearing strength by about 14 times, and improves the base layer peeling strength by about 5 times.
Compared with the traditional hot melting construction process, the embodiment of the invention can avoid open fire construction, the peel strength can be improved by about 90 percent, the shear strength can be improved by about 17 percent, and the peel strength of the base layer can be improved by about 70 percent.
Example 5
The embodiment provides a hot-melt rubber asphalt waterproof coating sealing tape and a short edge lap joint use method.
5.1 Hot melt rubber asphalt waterproof coating sealing tape
As shown in fig. 1, the hot-melt rubber asphalt waterproof coating sealing tape of the present embodiment sequentially includes: a PE barrier film layer 1, a hot melt rubber asphalt waterproof coating layer 3 prepared in 4.1 of the embodiment 4 and a PET barrier film layer 3; the PE isolation film layer 1 is made of a hot-melt polyethylene film.
Preparation: the hot-melt rubber asphalt waterproof coating prepared in the step 4.1 in the embodiment 4 is coated on a PET isolation film, the film coating temperature is 160 ℃, the PET isolation film is coated by cooling the PET isolation film to 110 ℃ through a cooling belt, and then the PE isolation film is stretched, rolled and cut to prepare the hot-melt rubber asphalt waterproof coating sealing tape with the thickness of 2mm, the width of 120mm and the length of 20 m/roll.
5.2 short edge lap joint use method
Pre-paving 5.1 hot-melt rubber asphalt waterproof coating sealing adhesive tapes prepared at the joint of the short edges of the exposed shale SBS modified asphalt waterproof coiled material, cutting corresponding sealing adhesive tape length according to the joint length of the short edges, removing an isolation film, baking the sealing adhesive tapes by using a methane tank until the sealing adhesive tapes are fully melted, and then sealing and compacting the edges to wrap mineral aggregates by the hot-melt rubber asphalt waterproof coating layer to complete joint edge lapping.
As shown in table 10, the short edge lap joint comparative test of the hot-melt rubber asphalt waterproof coating sealing tape after construction has the following relevant performances:
watch 10
As can be seen from the test data in table 10: when the hot-melt rubber sealing adhesive tape is used for hot-melt construction, the construction time is reduced by 55s, the construction efficiency can be obviously improved, and the open fire time is reduced. Except taking into account the efficiency of construction, minor face overlap joint peel strength promotes about 2 times, and peel strength further promotes for whole waterproof system is sealed tighter, and the wholeness is stronger.
While embodiments of the present invention have been described above, the above description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The hot-melt rubber asphalt waterproof coating is characterized by comprising the following raw materials: 90# asphalt, 200# asphalt, a softening agent, polyethylene wax, star SBS, SSBR, rubber powder, a rubber activator, a hyperbranched polymer, APAO, C9 petroleum resin and a filler;
wherein, the molecular end of the hyperbranched polymer contains active functional groups, and the active functional groups are amino and hydroxyl;
the weight average molecular weight of the hyperbranched polymer is 2000-5000, and based on the weight average molecular weight of the hyperbranched polymer, the amino group accounts for 0.05-1 wt%, and the hydroxyl group accounts for 0.7-2.5 wt%; the branching degree of the hyperbranched polymer is 0.2-0.6;
the molecular formula of the hyperbranched polymer is shown as formula I, wherein R is-CH 2 -CH 2 -O-CH 2 -CH 2 -；
2. The hot-melt rubber asphalt waterproof coating material according to claim 1, wherein the 90# asphalt is 60 to 80 parts, the 200# asphalt is 5 to 10 parts, the softener is 5 to 10 parts, the polyethylene wax is 3 to 8 parts, the star SBS is 12 to 16 parts, the SSBR is 1 to 3 parts, the rubber powder is 10 to 15 parts, the rubber activator is 0.05 to 0.1 part, the hyperbranched polymer is 1 to 5 parts, the APAO is 5 to 10 parts, the C9 petroleum resin is 5 to 9 parts, and the filler is 10 to 15 parts by weight.
3. The hot-melt rubber asphalt waterproofing coating according to claim 1 or 2, wherein the No. 90 asphalt is No. 90 petroleum asphalt; the 200# asphalt is petroleum asphalt with the penetration of 200-240dm at 0 ℃;
the softening agent is aromatic oil and/or two-line-reduced oil;
the 90# asphalt, the 200# asphalt and the softening agent are required to be all derived from the same crude oil.
4. The hot-melt rubber asphalt waterproof coating material as claimed in claim 1 or 2, wherein the weight average molecular weight of the star-shaped SBS is 18 to 25 ten thousand, and the mass percentage content of styrene is 30%;
the SSBR is solution polymerized styrene butadiene rubber, and the weight average molecular weight of the SSBR is 8-15 ten thousand;
the rubber powder is vulcanized rubber powder with the particle size of 150 meshes;
the rubber activator is an aromatic hydrocarbon disulfide.
5. The hot-melt rubber asphalt waterproof coating material according to claim 1 or 2, wherein the filler is at least one of light calcium carbonate, heavy calcium carbonate, talcum powder and fly ash, and is preferably 800-mesh light calcium carbonate powder.
6. The method of preparing a hot-melt rubber asphalt waterproofing paint according to any of claims 1 to 5, characterized in that it comprises: mixing and reacting 90# asphalt, 200# asphalt, a softening agent, star-shaped SBS, SSBR, rubber powder and a rubber activating agent; then adding the hyperbranched polymer and the polyethylene wax, and stirring for reaction; and finally, mixing the hot-melt rubber asphalt waterproof coating with APAO, C9 petroleum resin and a filler to prepare the hot-melt rubber asphalt waterproof coating.
7. The preparation method of the hot melt rubber asphalt waterproofing paint according to claim 6, wherein the preparation method comprises: mixing, stirring and heating the 90# asphalt, the 200# asphalt and the softening agent to a first temperature, adding the star-shaped SBS and the SSBR, shearing and grinding to a homogeneous phase, adding the rubber powder and the rubber activating agent, and stirring and reacting at a second temperature; then adding the hyperbranched polymer and the polyethylene wax, and stirring for reaction at a third temperature; adding the APAO and the C9 petroleum resin again, and continuing stirring; and finally, adding the filler, and uniformly stirring to obtain the hot-melt rubber asphalt waterproof coating.
8. The preparation method of the hot-melt rubber asphalt waterproof coating material according to claim 6, wherein the first temperature is 130-180 ℃, the second temperature is 180-200 ℃, and the third temperature is 170-190 ℃.
9. The utility model provides a hot melt rubber pitch waterproof coating sealing tape which characterized in that, this hot melt rubber pitch waterproof coating sealing tape includes in proper order: a PE barrier film layer, the hot melt rubber asphalt waterproof coating layer of any one of claims 1 to 5 and a PET barrier film layer;
preferably, the PE isolation film layer is made of a hot-melt polyethylene film.
10. A modified asphalt waterproof coiled material lapping method is characterized by comprising the following steps: the lapping process is carried out between the lapping surfaces of the modified asphalt waterproof coiled material by using the hot-melt rubber asphalt waterproof coating material of any one of claims 1 to 5 or the hot-melt rubber asphalt waterproof coating material sealing tape of claim 9 as an adhesive layer.
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| CN114921226B (en) | 2023-11-03 |
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