CN117801785A - Modified asphalt coating material, preparation method thereof and exposable flame-retardant waterproof coiled material - Google Patents
Modified asphalt coating material, preparation method thereof and exposable flame-retardant waterproof coiled material Download PDFInfo
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- CN117801785A CN117801785A CN202311874304.6A CN202311874304A CN117801785A CN 117801785 A CN117801785 A CN 117801785A CN 202311874304 A CN202311874304 A CN 202311874304A CN 117801785 A CN117801785 A CN 117801785A
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- asphalt
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- 239000010426 asphalt Substances 0.000 title claims abstract description 174
- 239000000463 material Substances 0.000 title claims abstract description 120
- 239000011248 coating agent Substances 0.000 title claims abstract description 83
- 238000000576 coating method Methods 0.000 title claims abstract description 83
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000003063 flame retardant Substances 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 81
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 57
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000011575 calcium Substances 0.000 claims abstract description 44
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 44
- 229920005556 chlorobutyl Polymers 0.000 claims abstract description 40
- 229920001971 elastomer Polymers 0.000 claims abstract description 40
- 239000011435 rock Substances 0.000 claims abstract description 40
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 25
- 230000023556 desulfurization Effects 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims description 49
- 239000002245 particle Substances 0.000 claims description 47
- 239000010410 layer Substances 0.000 claims description 46
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 38
- 238000002156 mixing Methods 0.000 claims description 36
- 239000000839 emulsion Substances 0.000 claims description 30
- 239000011707 mineral Substances 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 15
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 14
- 239000011241 protective layer Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 12
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000011247 coating layer Substances 0.000 claims description 9
- 229920000388 Polyphosphate Polymers 0.000 claims description 8
- 235000021355 Stearic acid Nutrition 0.000 claims description 8
- 238000005660 chlorination reaction Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 8
- 239000001205 polyphosphate Substances 0.000 claims description 8
- 235000011176 polyphosphates Nutrition 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 239000008117 stearic acid Substances 0.000 claims description 8
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 7
- 239000000347 magnesium hydroxide Substances 0.000 claims description 7
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 230000035515 penetration Effects 0.000 claims description 6
- XOAAWQZATWQOTB-UHFFFAOYSA-N taurine Chemical compound NCCS(O)(=O)=O XOAAWQZATWQOTB-UHFFFAOYSA-N 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000002199 base oil Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- APVVRLGIFCYZHJ-UHFFFAOYSA-N trioctyl 2-hydroxypropane-1,2,3-tricarboxylate Chemical compound CCCCCCCCOC(=O)CC(O)(C(=O)OCCCCCCCC)CC(=O)OCCCCCCCC APVVRLGIFCYZHJ-UHFFFAOYSA-N 0.000 claims description 4
- BZQKBFHEWDPQHD-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[2-(2,3,4,5,6-pentabromophenyl)ethyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1CCC1=C(Br)C(Br)=C(Br)C(Br)=C1Br BZQKBFHEWDPQHD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 239000010692 aromatic oil Substances 0.000 claims description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- WIBFFTLQMKKBLZ-SEYXRHQNSA-N n-butyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCCC WIBFFTLQMKKBLZ-SEYXRHQNSA-N 0.000 claims description 3
- 229960003080 taurine Drugs 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 18
- 230000009471 action Effects 0.000 abstract description 5
- 230000002195 synergetic effect Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 16
- 239000002345 surface coating layer Substances 0.000 description 15
- 229920005549 butyl rubber Polymers 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 5
- 239000002426 superphosphate Substances 0.000 description 5
- 229910018557 Si O Inorganic materials 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002318 adhesion promoter Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre
-
- 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
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/346—Applications of adhesives in processes or use of adhesives in the form of films or foils for building applications e.g. wrap foil
-
- 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
- C09J2433/00—Presence of (meth)acrylic polymer
- C09J2433/005—Presence of (meth)acrylic polymer in the release coating
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The application provides a modified asphalt coating material, a preparation method thereof and an exposable flame-retardant waterproof coiled material. The modified asphalt coating material comprises the following raw material components in parts by weight: asphalt, 28-66 parts; 3-10 parts of rock asphalt; 10-15 parts of tackifier; 3-6 parts of SBS; 2-5 parts of chlorinated butyl rubber; 5-10 parts of desulfurization rubber powder; 12-20 parts of silane coupling agent modified heavy calcium powder; 5-15 parts of flame retardant. According to the modified asphalt coating material provided by the embodiment of the application, through the synergistic cooperation of the rock asphalt, the SBS, the chlorinated butyl rubber, the desulfurization rubber powder and the flame retardant, the aging resistance and the bonding performance of the coating material can be stabilized under the combined action of multiple components, and meanwhile, the flame retardant performance is improved, so that the flame retardant meets the B2-level requirement.
Description
Technical Field
The application belongs to the technical field of waterproof coiled materials, and particularly relates to a modified asphalt coating material and a preparation method thereof, and a flame-retardant waterproof coiled material capable of being exposed.
Background
The traditional asphalt waterproof coiled material is mainly prepared by taking high-quality road asphalt as a main material, taking waste engine oil, wire-reducing oil, rubber oil and the like as softening oil and modifying a high-molecular polymer, wherein a large amount of combustible polymers and combustible oil are used, and the flame-retardant effect cannot be realized. When the mineral aggregate is a surface material and is used for exposing the waterproof coiled material, mineral sand is easy to fall off and is washed away by rainwater in use and construction, a water outlet is easy to be blocked, the waterproof layer is aged and invalid due to ultraviolet ageing, the low-temperature flexibility of the waterproof coiled material is poor, the cohesiveness is poor, and water seepage is easy to occur.
Disclosure of Invention
The embodiment of the application provides a modified asphalt coating material and a preparation method thereof, and a flame-retardant waterproof coiled material capable of being exposed, so that the flame-retardant property is improved while the ageing resistance and the bonding property are stabilized.
In a first aspect, an embodiment of the present application provides a modified asphalt coating material, including the following raw material components in parts by weight: asphalt, 28-66 parts; 3-10 parts of rock asphalt; 10-15 parts of tackifier; 3-6 parts of SBS; 2-5 parts of chlorinated butyl rubber; 5-10 parts of desulfurization rubber powder; 12-20 parts of silane coupling agent modified heavy calcium powder; 5-15 parts of flame retardant.
According to an embodiment of the first aspect of the present application, the feedstock component meets at least one of the following conditions:
(1) Based on the mass of the silane coupling agent modified heavy calcium powder, the mass fraction of the silane coupling agent is 1.5% -5%;
(2) The chlorination degree of the chlorinated butyl rubber is 1.8-4.5%;
(3) SBS is star SBS, wherein styrene: the mass ratio of butadiene is (2.8-3.5), the melt index is less than or equal to 1, and the weight average molecular weight is 18-30W;
(4) The softening point of the rock asphalt is 145-160 ℃, the penetration is less than 1, and the solubility is more than 96%.
According to an embodiment of the first aspect of the present application, the silane coupling agent modified heavy calcium powder comprises a product prepared by the steps of:
mixing heavy calcium powder with a solvent to obtain a suspension; adding stearic acid into the suspension, stirring and mixing, and then adding a silane coupling agent, stirring and mixing to obtain a mixed system; and (3) drying and grinding the mixed system to obtain the silane coupling agent modified heavy calcium powder.
According to an embodiment of the first aspect of the present application, the feedstock component meets at least one of the following conditions:
(1) The grain diameter of the rubber powder is 10-40mm;
(2) The particle size of the silane coupling agent modified heavy calcium powder is 0.075-0.084 mm;
(3) The grain diameter of the flame retardant is 0.013 mm-0.026 mm.
According to an embodiment of the first aspect of the present application, the tackifier comprises one or more of rubber oil R9, an environmentally friendly aromatic oil, butyl oleate, trioctyl citrate.
According to an embodiment of the first aspect of the present application, the flame retardant comprises one or more of magnesium hydroxide, aluminum hydroxide, decabromodiphenylethane, antimony trioxide, taurine, polyphosphates, chlorinated polyethylene.
In a second aspect, an embodiment of the present application provides a method for preparing a modified asphalt coating material, including the following steps:
providing raw materials according to the raw material components and parts by weight contained in the coating material;
adding asphalt into a reaction vessel, and adding a tackifier into the reaction vessel in the stirring process to obtain a first mixture;
mixing and stirring SBS, chlorinated butyl rubber, rock asphalt and the first mixture to obtain a second mixture;
and mixing the desulfurization rubber powder with the second mixture, adding the filler and the flame retardant, and mixing and stirring to obtain the modified asphalt coating material.
According to an embodiment of the first aspect of the present application, the silane coupling agent modified heavy calcium powder is prepared by: mixing heavy calcium powder with a solvent to obtain a suspension; adding stearic acid into the suspension, stirring and mixing, and then adding a silane coupling agent, stirring and mixing to obtain a mixed system; and (3) drying and grinding the mixed system to obtain the silane coupling agent modified heavy calcium powder.
According to an embodiment of the first aspect of the present application, the step of obtaining the second mixture comprises: at 130-180 ℃, SBS, chlorinated butyl rubber, rock asphalt and the first mixture are mixed and stirred, wherein the mixing and stirring comprises the steps of stirring at a low speed of 50-130 r/min for 5-15min, and then stirring at a high speed of 400-800 r/min for 2.5-3 h.
In a third aspect, embodiments of the present application provide an exposable flame retardant waterproof roll, including a main body substrate layer, coating layers covering two sides of the main body substrate layer, a mineral particle layer covering at least one side of the coating layer, and an isolation protective layer covering the mineral particle layer; wherein the coating layer is formed by the modified asphalt coating material according to the claim or the modified asphalt coating material prepared by the preparation method.
According to an embodiment of the third aspect of the present application, the thickness of the isolation protection layer is 0.3-0.5mm; and/or the number of the groups of groups,
the isolation protective layer is formed by polymer emulsion, and the polymer emulsion comprises one or more of silane modified acrylic emulsion, pure acrylic emulsion and fluorocarbon emulsion.
Compared with the prior art, the application has the following beneficial effects:
according to the modified asphalt coating material, through the synergistic cooperation of the rock asphalt, the chlorinated butyl rubber, the desulfurization rubber powder and the flame retardant, the aging resistance and the bonding performance of the coating material can be stabilized under the combined action of multiple components, and meanwhile, the flame retardant performance is improved, so that the flame retardant performance meets the B2-level requirement. The rock asphalt provides high strength and ageing resistance, the modified butyl rubber can improve the inorganic material peeling strength and flame retardance of asphalt coiled materials, the desulfurization rubber powder has better active reaction, the asphalt bonding performance is enhanced, and the asphalt weather resistance is improved. In addition, the Si-O alkyl connected asphalt in the modified heavy calcium powder by the silane coupling agent forms chemical bond combination with inorganic mineral particles, so that the adhesiveness between the Si-O alkyl connected asphalt and the inorganic mineral particles is improved, the flame retardance of the waterproof coiled material prepared from the modified asphalt coating material and the adhesiveness between the waterproof coiled material and the inorganic mineral particles are improved, the energy is saved, the environment is protected, and the waterproof coiled material is friendly to production workers and the society.
Detailed Description
In order to make the objects, technical solutions and advantageous technical effects of the present application clearer, the present application is further described in detail with reference to examples below. It should be understood that the embodiments described in this specification are for purposes of illustration only and are not intended to limit the present application.
For simplicity, only a few numerical ranges are explicitly disclosed herein. However, any lower limit may be combined with any upper limit to form a range not explicitly recited; and any lower limit may be combined with any other lower limit to form a range not explicitly recited, and any upper limit may be combined with any other upper limit to form a range not explicitly recited. Furthermore, each point or individual value between the endpoints of the range is included within the range, although not explicitly recited. Thus, each point or individual value may be combined as a lower or upper limit on itself with any other point or individual value or with other lower or upper limit to form a range that is not explicitly recited.
In the description herein, when a composition is described as containing, comprising, or including a particular component, or when a process is described as containing, comprising, or including a particular process step, it is contemplated that the composition of the present application also consists essentially of, or consists of, that component, and that the process of the present application also consists essentially of, that process step.
The use of the terms "comprising," "including," "containing," and "having" are generally to be construed as open-ended and not limiting, unless expressly stated otherwise.
In the description herein, unless otherwise indicated, "above" and "below" are intended to include the present number, and the meaning of "multiple" in "one or more" is two or more.
The above summary of the present application is not intended to describe each disclosed embodiment or every implementation of the present application. The following description more particularly exemplifies illustrative embodiments. Guidance is provided throughout this application by a series of embodiments, which may be used in various combinations. In the various examples, the list is merely a representative group and should not be construed as exhaustive.
The inventor of the application notes that the existing modified asphalt waterproof coiled material uses a large amount of combustible polymers and combustible oil, the flame-retardant effect cannot be achieved, and mineral particles are used as surface materials for the exposed waterproof coiled material, mineral sand is easy to fall off and is washed away by rainwater in use and construction, a water outlet is easy to be blocked, the waterproof layer is aged and disabled due to ultraviolet aging, the waterproof coiled material is aged, the low-temperature flexibility of the waterproof coiled material is poor, the cohesiveness is poor, and the water seepage phenomenon is easy to occur.
Therefore, the inventor of the application performs a great deal of research, provides a modified asphalt coating material and a preparation method thereof, and can expose flame-retardant waterproof coiled materials, and aims to improve flame retardance while stabilizing ageing resistance and adhesive property.
Modified asphalt coating material
In a first aspect, an embodiment of the present application provides a modified asphalt coating material, including the following raw material components in parts by weight: asphalt, 28-66 parts; 3-10 parts of rock asphalt; 10-15 parts of tackifier; 3-6 parts of SBS; 2-5 parts of chlorinated butyl rubber; 5-10 parts of desulfurization rubber powder; 12-20 parts of silane coupling agent modified heavy calcium powder; 5-15 parts of flame retardant.
According to the modified asphalt coating material provided by the embodiment of the application, through the synergistic cooperation of the rock asphalt, the SBS, the chlorinated butyl rubber, the desulfurization rubber powder and the flame retardant, the aging resistance and the bonding performance of the coating material can be stabilized under the combined action of multiple components, and meanwhile, the flame retardant performance is improved, so that the flame retardant meets the B2-level requirement.
The asphalt in the embodiments of the present application is road asphalt commonly used for roads, for example, asphalt includes one or a mixture of two of 70# asphalt (70 # asphalt) and 90# asphalt (90 # asphalt). The asphalt has a softening point of 45-50 ℃ and a penetration of 65-100 at 26 ℃, and has excellent water resistance, aging resistance, chemical corrosion resistance and good bonding performance. Illustratively, the bitumen is 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66 or a range of any two of the foregoing values by weight. The flame retardant may improve flame retardant properties, and the weight part of the flame retardant is 5 to 15 parts based on 28 to 66 parts of asphalt, and illustratively, the weight part of the flame retardant is 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, or a range of any two of the above values.
The inventor of the application notes in experiments that the flame retardant is added into the asphalt coating material to obviously improve the flame retardance of the waterproof coiled material, but has larger influence on the bonding performance, weather resistance and aging resistance. Therefore, the inventor of the application carries out a great deal of experimental study, and components such as rock asphalt, chlorinated butyl rubber, desulfurization rubber powder and the like are added into an asphalt coating system to form a modified asphalt coating so as to improve the performance of the modified asphalt coating.
The rock asphalt provides high strength and ageing resistance, and the modified butyl rubber can improve the inorganic material peeling strength and flame retardance of the asphalt coiled material. Based on 28-66 parts by weight of asphalt and 5-15 parts by weight of flame retardant, 3-10 parts by weight of rock asphalt; illustratively, the parts by weight of the rock asphalt are 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, or a range of any two of the foregoing values.
The chlorinated butyl rubber can improve the peeling strength and the flame retardance between the asphalt coating material and the inorganic material in the waterproof coiled material. Based on the weight parts of asphalt and rock asphalt, the weight parts of chlorinated butyl rubber are 2-5 parts; illustratively, the parts by weight of chlorinated butyl rubber is 2 parts, 3 parts, 4 parts, 5 parts, or a range of any two of the foregoing values.
The desulfurization rubber powder has better active reaction, enhances the adhesive property of asphalt and improves the weather resistance of an asphalt coating material system. On the basis of the weight parts of asphalt, rock asphalt and chlorinated butyl rubber, the weight parts of the desulfurization rubber powder are 5-10 parts; illustratively, the portion by weight of the desulphurized rubber powder is 5, 6, 7, 8, 9, 10 or a range of any two of the foregoing values.
The inventor of the application notes in experiments that the cooperative matching of rock asphalt, chlorinated butyl rubber, desulfurization rubber powder and flame retardant can not reach the balance of single components, the flame retardance B2 level requirement can be met under the combined action of multiple components, the rest performances of the waterproof coiled material are not reduced, and the construction requirements are met.
In addition, the embodiment of the application introduces silane coupling agent modified heavy calcium powder into the modified asphalt coating material. On one hand, the modified asphalt coating material can improve the strength of the coating material, on the other hand, the Si-O alkyl-connected asphalt in the silane coupling agent modified heavy calcium powder and the inorganic mineral particles form chemical bond combination, so that the adhesiveness between the Si-O alkyl-connected asphalt and the inorganic mineral particles is improved, and meanwhile, the flame retardance and the adhesiveness between the waterproof coiled material prepared from the modified asphalt coating material and the inorganic mineral particles are improved, so that the energy-saving and environment-friendly performance is good, and the waterproof coiled material is friendly to production workers and society. 12-20 parts of silane coupling agent modified heavy calcium powder; illustratively, the weight parts of the silane coupling agent modified heavy calcium powder are 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, or a range of any two of the foregoing.
The SBS can obviously improve the initial viscosity of the asphalt coiled material and the adhesion of the asphalt coiled material with mineral particles, and effectively reduces the falling-off phenomenon of the mineral particles. 3-6 parts of SBS; illustratively, the SBS is present in an amount of 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, or a range of any two of the foregoing.
In some embodiments, the mass fraction of the silane coupling agent is 1.5% to 5% based on the mass of the silane coupling agent modified ground triple superphosphate. Illustratively, the mass fraction of the silane coupling agent is 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range of any two of the foregoing values.
In the embodiment of the application, the proportion of the silane coupling agent to the heavy calcium powder in the silane coupling agent modified heavy calcium powder is adjusted within the range, so that one side of the silane coupling agent is connected with the heavy calcium powder, and the other side of the silane coupling agent can be fully combined with inorganic mineral particles to form chemical bonds, so that the adhesiveness between the two inorganic mineral particles is improved, and the weather resistance and the ageing resistance of the waterproof coiled material prepared from the modified asphalt coating material are improved.
In some embodiments, the chlorinated butyl rubber has a degree of chlorination of 1.8% to 4.5%. Illustratively, the mass fraction of the silane coupling agent is 1.8%, 2%, 2.2%, 2.5%, 2.8%, 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5% or a range of any two of the foregoing values.
In the embodiment of the application, the modified asphalt coating material has excellent cohesiveness by adjusting the chlorination degree of the chlorinated butyl rubber within the range, so that the flame retardance of the modified asphalt coating material is improved, and the heat and oxygen aging resistance of the modified asphalt coating material is improved.
In some embodiments, the SBS is a star SBS, wherein styrene: the mass ratio of butadiene is (2.8-3.5) (7.2-6.5), the melt index is less than or equal to 1, and the weight average molecular weight is 18-30W.
Illustratively, the star SBS is based on 10 parts by weight total, wherein styrene: the mass ratio of butadiene is 2.8:7.2, 3.0:7.0, 3.1:6.9, 3.2:6.8, 3.3:6.7, 3.4:6.6, 3.5:6.5 or a range consisting of any two of the above ratios.
Illustratively, the weight average molecular weight of the star SBS is 18W, 19W, 20W, 21W, 22W, 23W, 24W, 25W, 26W, 27W, 28W, 29W, 30W or a range of any two of the above values, e.g., 18W represents 180000.
In the embodiment of the application, the proper SBS type is selected, so that the SBS and other components of the modified asphalt coating material are matched with each other to realize good initial adhesion.
In some embodiments, the rock asphalt has a softening point of 145-160 ℃, a penetration of less than 1, and a solubility of > 96%.
Illustratively, the rock asphalt has a softening point of 145 ℃, 146 ℃, 147 ℃, 148 ℃, 149 ℃, 150 ℃, 151 ℃, 152 ℃, 153 ℃, 154 ℃, 155 ℃, 156 ℃, 157 ℃, 158 ℃, 159 ℃, 160 ℃, or a range of any two of the above values.
In the embodiment of the application, rock asphalt with a proper softening point is selected and can be softened and mixed with other components of the modified asphalt coating material at a proper temperature.
In some embodiments, the silane coupling agent modified heavy calcium powder comprises the product prepared by the steps of:
mixing heavy calcium powder with a solvent to obtain a suspension; adding stearic acid into the suspension, stirring and mixing, and then adding a silane coupling agent, stirring and mixing to obtain a mixed system; and (3) drying and grinding the mixed system to obtain the silane coupling agent modified heavy calcium powder.
The preparation method has the advantages that the stearic acid is used for pretreatment of the heavy calcium powder, and then the surface modification is carried out on the heavy calcium powder and the silane coupling agent, so that the compatibility and the dispersibility of the modified heavy calcium powder and the asphalt, SBS, chlorinated butyl rubber and the flame retardant are improved, and the organic matters and the inorganic matters are connected through chemical bonds to form more stable combination; thereby improving the overall flame retardance and the initial viscosity of the modified asphalt coating material.
In some embodiments, the size of the gum powder is 10-40mm. The desulfurization rubber powder can be reclaimed rubber powder obtained by desulfurizing waste rubber, grinding and crushing the waste rubber at low temperature into rubber particles with a certain particle size, desulfurizing the rubber particles by a high-temperature solvent, and the like. The desulfurization rubber powder reduces the emission of waste gas produced by production and is environment-friendly.
In some embodiments, the silane coupling agent modified triple superphosphate powder has a particle size of 0.075mm to 0.084mm.
In some embodiments, the flame retardant has a particle size of 0.013mm to 0.026mm.
The particle size of each component is adjusted within the range, so that the performance of the modified asphalt coating material is improved. The particle size is too small, the agglomeration is easy, and the stability and the adhesive property of the modified asphalt coating material are facilitated by adjusting the particle size of each component within the range.
In some embodiments, the adhesion promoter comprises one or more of a base oil, a rubber oil R9, an environmentally friendly aromatic oil, butyl oleate, trioctyl citrate, and the adhesion promoter is used to adjust the viscosity of the modified asphalt coating material system.
In the embodiments of the present application, the base oil refers to the liquid component that constitutes the finished product of the lubricating oil and the lubricating grease.
In some embodiments, the flame retardant comprises one or more of magnesium hydroxide, aluminum hydroxide, decabromodiphenylethane, antimony trioxide, taurine, polyphosphates, chlorinated polyethylene.
Preparation method of modified asphalt coating material
In a second aspect, an embodiment of the present application provides a method for preparing a modified asphalt coating material, including the following steps:
providing raw materials according to the raw material components and parts by weight contained in the coating material;
adding asphalt into a reaction vessel, and adding a tackifier into the reaction vessel in the stirring process to obtain a first mixture;
mixing and stirring SBS, chlorinated butyl rubber, rock asphalt and the first mixture to obtain a second mixture;
and mixing the desulfurization rubber powder with the second mixture, adding the filler and the flame retardant, and mixing and stirring to obtain the modified asphalt coating material.
The preparation method of the modified asphalt coating material is simple and feasible, has low equipment requirement, can be well compatible with the existing process, and has great large-scale application potential.
In some embodiments, the silane coupling agent modified triple superphosphate powder is prepared by: mixing heavy calcium powder with a solvent to obtain a suspension; adding stearic acid into the suspension, stirring and mixing, and then adding a silane coupling agent, stirring and mixing to obtain a mixed system; and (3) drying and grinding the mixed system to obtain the silane coupling agent modified heavy calcium powder.
Asphalt is added into the reaction vessel, and then tackifier is added into the reaction vessel in the stirring process, so that the asphalt and the tackifier are uniformly mixed.
The tackifier can be added into the reaction container containing asphalt for multiple times in the embodiment of the application so as to improve the uniformity of the mixing process.
In some embodiments, the step of obtaining the second mixture comprises: at 130-180 ℃, SBS, chlorinated butyl rubber, rock asphalt and the first mixture are mixed and stirred, wherein the mixing and stirring comprises the steps of stirring at a low speed of 50-130 r/min for 5-15min, and then stirring at a high speed of 400-800 r/min for 2.5-3 h. In the embodiment of the application, the main purpose of firstly carrying out low-speed mixing and then carrying out high-speed mixing is to enable SBS, chlorinated butyl rubber and rock asphalt to be more uniformly dispersed and dissolved into asphalt, so that the asphalt is a better modified matrix asphalt.
Expandable flame-retardant waterproof coiled material
In a third aspect, embodiments of the present application provide an exposable flame retardant waterproof roll, including a main body substrate layer, coating layers covering two sides of the main body substrate layer, a mineral particle layer covering at least one side of the coating layer, and an isolation protective layer covering the mineral particle layer; wherein the coating layer is formed by the modified asphalt coating material or the modified asphalt coating material prepared by the preparation method.
The application provides a but foretell modified asphalt coating material of flame retardant type coiled material exposes to through the isolation protection layer at mineral particle layer spraying one deck, make it form the protection film that has certain thickness on mineral particle layer surface, form van der Waals bond with mineral particle surface, form whole skin formula water erosion resistance, and have excellent salt fog resistance, alkali resistance, anticorrosive, extremely strong adhesive force, the water resistance is good, good anti-back tack and the outstanding scheduling characteristics of nai weather, show the ageing resistance that improves coiled material, storage stability and ultraviolet ageing resistance, higher life is applicable to exposing the scene.
In some embodiments, the thickness of the barrier protective layer is 0.3-0.5mm.
In some embodiments, the barrier protective layer is formed from a polymer emulsion including one or more of a silane modified acrylic emulsion, a pure acrylic emulsion, a fluorocarbon emulsion.
Examples
The following examples more particularly describe the disclosure of the present application, which are intended as illustrative only, since numerous modifications and variations within the scope of the disclosure will be apparent to those skilled in the art. Unless otherwise indicated, all parts, percentages, and ratios reported in the examples below are by weight, and all reagents used in the examples are commercially available or were obtained synthetically according to conventional methods and can be used directly without further treatment, as well as the instruments used in the examples.
The sources of the raw materials used in the following examples are as follows:
70# asphalt, lunte petrochemical Co., ltd,
90# asphalt, highly rich petrochemical Co., ltd,
rock asphalt, anhui middle-print natural rock asphalt technology Co., ltd,
SBS, manufactured by Baling petrochemical company,
chlorinated butyl rubber, jinan Hongji chemical Co., ltd,
desulfurizing rubber powder, sea Rui environmental protection new material science and technology Co., ltd,
silane coupling agent, 3-methacryloxypropyl trimethoxysilane, was purchased from Aba Ding Shenghua technologies Co.
Other raw materials not specifically described are all common commercial products.
The silane coupling agent modified heavy calcium powder is prepared by the following steps:
100g of heavy calcium powder is mixed with 300ml of solvent (the volume ratio of water to alcohol is 2:0.5) to obtain suspension;
adding 5.8g of stearic acid into the suspension, stirring and mixing, and adding 3g of silane coupling agent, stirring and mixing to obtain a mixed system;
and (3) drying and grinding the mixed system to obtain silane coupling agent modified heavy calcium powder with the particle size of 0.084mm.
Example 1
The modified asphalt coating material comprises the following raw material components in percentage by weight:
44 parts of asphalt, wherein the asphalt is 70/90# asphalt with the mass ratio of 1:2.6;
5 parts of rock asphalt, wherein the softening point is 152 ℃, the penetration is less than 1, and the solubility is more than 96%;
11 parts of tackifier, wherein the tackifier is prepared from base oil: rubber oil R9 is mixed to form, and the ratio is 1:0.65;
SBS,6 parts, SBS is star SBS, wherein styrene: the mass ratio of butadiene is 2.8:7.2, the melt index is less than or equal to 1, and the weight average molecular weight is 26W;
2 parts of chlorinated butyl rubber, wherein the chlorination degree is 3%;
10 parts of desulfurization rubber powder;
17 parts of filler and silane coupling agent modified nano heavy calcium powder, wherein the content of the silane coupling agent is 2%;
5 parts of flame retardant which is a mixture of magnesium hydroxide and polyphosphate, magnesium hydroxide: the mass ratio of the polyphosphate is 2:0.5;
protective layer emulsion 0.5-1.5mm
The preparation method of the modified asphalt coating material comprises the following steps:
step 1: adding asphalt and one half of the tackifier in the total weight part into a reaction kettle, heating and stirring at a low speed for 15-20min;
step 2: adding the rest tackifier into a stirred reaction kettle, and stirring; 10-15min;
step 3: the temperature is raised to 130-180 ℃, chlorinated butyl rubber SBS and rock asphalt are slowly added into the step 1 and stirred, firstly, the mixture is stirred at a low speed for 5-15min, the temperature is kept at 180 ℃, and the mixture is stirred at a high speed for 2.5-3h;
step 4: adding the desulfurization rubber powder into the step 2, and stirring at a high speed for 1-2h while preserving heat;
step 5: and (3) adding the filler and the flame retardant into the step (4) and stirring uniformly, and cooling to 160-170 ℃ to obtain the modified asphalt coating material.
The method for preparing the exposable flame-retardant waterproof coiled material comprises the following steps:
uniformly coating the modified asphalt coating material on two sides of a dried, oil-immersed and squeezed main substrate layer in an upper layer and a lower layer, and forming a structure with a lower surface protective layer, a lower surface coating layer, a presoaked main substrate layer and an upper surface coating layer from bottom to top in sequence;
on one side of the main substrate layer, mineral particles are uniformly coated on the upper surface coating layer to form a mineral particle layer, a 10cm overlap edge is reserved on the upper surface coating layer, an isolation layer is coated on the overlap edge and the lower surface coating layer, then the isolation layer is formed by cooling and spraying polymer emulsion on the upper surface mineral particle layer for 0.3-0.5mm, and the isolation protection layer is obtained after the shaping of the emulsion by heat drying and drying.
The polymer emulsion is silane modified acrylic emulsion, and the inorganic mineral particles are dust-free shale particles and sintered mineral particles/clay particles.
Example 2
The embodiment provides a preparation and molding method of an exposed flame-retardant SBS modified asphalt waterproof coiled material coating material, which comprises the following raw material components in percentage by weight:
44 parts of asphalt, wherein the asphalt is 90# petroleum asphalt;
5 parts of rock asphalt, wherein the softening point is 152 ℃, the penetration is less than 1, and the solubility is more than 96%;
11 parts of tackifier, wherein the tackifier is trioctyl citrate: the ratio of the environment-friendly organic aromatic hydrocarbon oil mixed reagent is 1:1.5.
SBS,6 parts, SBS is star SBS, wherein styrene: the mass ratio of butadiene is 2.8:7.2, the melt index is less than or equal to 1, and the weight average molecular weight is 25W;
2 parts of chlorinated butyl rubber, wherein the chlorination degree is 3%;
regenerated desulfurization rubber powder 10
Filling material, 12 parts of silane coupling agent modified nano heavy calcium powder, and 4% of silane coupling agent;
10 parts of flame retardant, wherein the flame retardant is a mixture of antimony trioxide and polyphosphoric acid ester, and the antimony trioxide is as follows: polyphosphate is 1.5:0.5;
protective layer emulsion 0.5-1.5mm
The preparation method of the modified asphalt coating material comprises the following steps:
step 1: adding asphalt and two thirds of tackifier into a reaction kettle according to weight fraction, heating and stirring for 15-20min at low speed;
step 2: adding the rest tackifier into a stirred reaction kettle, and stirring; 10-15min;
step 3: slowly adding the chlorinated butyl rubber, the SBS and the rock asphalt into the step 1 and stirring, firstly stirring at a low speed for 5-15min, preserving heat at 180 ℃, and stirring at a high speed for 2.5-3h;
step 4: adding the desulfurization rubber powder into the step 2, and stirring at a high speed for 1-2h while preserving heat;
step 5: and (3) adding the filler and the flame retardant into the step (4) while stirring uniformly, and cooling to 160-170 ℃ to obtain the wet-laid modified asphalt waterproof coiled material coating material.
The method for preparing the exposable flame-retardant waterproof coiled material comprises the following steps:
uniformly coating the modified asphalt coating material on two sides of a dried, oil-immersed and squeezed main substrate layer in an upper layer and a lower layer, and forming a structure with a lower surface protective layer, a lower surface coating layer, a presoaked main substrate layer and an upper surface coating layer from bottom to top in sequence;
and uniformly coating mineral particles on one side of the main substrate layer to form a mineral particle layer on the upper surface coating layer, leaving a 10cm overlap edge on the upper surface coating layer, covering an isolation layer on the overlap edge and the lower surface coating layer, cooling, spraying polymer emulsion on the upper surface mineral particle layer for 0.3-0.5mm to form an isolation protection layer, and performing thermal drying, emulsion shaping to obtain the exposable flame-retardant SBS modified asphalt waterproof coiled material.
Wherein the polymer emulsion is silane modified acrylic emulsion, and the mineral particles are dust-free sintered mineral particles.
Example 3
The embodiment provides a preparation and molding method of an exposed flame-retardant SBS modified asphalt waterproof coiled material coating material, which comprises the following raw material components in percentage by weight:
38 parts of asphalt, wherein the asphalt is 70# asphalt;
4 parts of rock asphalt,
10 parts of tackifier which is naphthenic oil: rubber oil R9 mixed reagent with the ratio of 1:0.75.
SBS,6 parts, SBS is star SBS, styrene: the mass ratio of butadiene is 3.2:6.8, the melt index is less than or equal to 1, and the weight average molecular weight is 28W;
3 parts of chlorinated butyl rubber, wherein the chlorination degree is 2%;
6 parts of desulfurization rubber powder,
25 parts of filler and silane coupling agent modified nano heavy calcium powder, wherein the content of the silane coupling agent is 3%;
8 parts of flame retardant which is a mixture of magnesium hydroxide and polyphosphate, wherein the magnesium hydroxide is as follows: the mass ratio of the polyphosphate is 2:0.5;
the preparation method of the modified asphalt coating material comprises the following steps:
step 1: adding asphalt and one third of the tackifier according to the weight fraction, heating and stirring at low speed for 15-20min;
step 2: adding the tackifier into a stirred reaction kettle, and stirring; 10-15min;
step 3: the temperature is raised to 130-180 ℃, chlorinated butyl rubber SBS and rock asphalt are slowly added into the step 1 and stirred, firstly, the mixture is stirred at a low speed for 5-15min, the temperature is kept at 180 ℃, and the mixture is stirred at a high speed for 2.5-3h;
step 4: adding the desulfurization rubber powder into the step 2, and stirring at a high speed for 1-2h while preserving heat;
step 5: and (3) adding the filler and the flame retardant into the step (4) while stirring uniformly, and cooling to 160-170 ℃ to obtain the wet-laid modified asphalt waterproof coiled material coating material.
The method for preparing the exposable flame-retardant waterproof coiled material comprises the following steps:
uniformly coating the modified asphalt coating material on two sides of a dried, oil-immersed and squeezed main substrate layer in an upper layer and a lower layer, and forming a structure with a lower surface protective layer, a lower surface coating layer, a presoaked main substrate layer and an upper surface coating layer from bottom to top in sequence;
further, on one side of the main body substrate layer, mineral particles are uniformly coated on the upper surface coating layer to form a mineral particle layer, a 10cm overlap edge is reserved on the upper surface coating layer, an isolation layer is coated on the overlap edge and the lower surface coating layer, then the isolation layer is formed by cooling and spraying polymer emulsion 0.3-0.5mm on the upper surface mineral particle layer, and the isolation protection layer is obtained after the shaping of the thermal drying and drying emulsion.
Wherein the polymer emulsion is pure acrylic emulsion, and the mineral particles are dust-free shale particles.
Comparative example 1
Similar to the components and parts by weight of example 1, the major difference is the equivalent replacement of rock asphalt with 90# asphalt.
Comparative example 2
Similar to the components and parts by weight of example 2, the main difference is the equivalent replacement of the flame retardant with stone dust.
Comparative example 3
Similar to the components and parts by weight of example 3, the major difference is that the chlorinated butyl rubber is replaced with an equal amount of normal butyl rubber, and the upper surface of the waterproof roll is not covered with the polymer emulsion.
Comparative example 4
Similar to the components and parts by weight of example 1, the main difference is that example 1 is to replace the flame retardant with stone powder in equal amounts.
Comparative example 5
Similar to the components and parts by weight of example 1, the main difference is that the modified butyl rubber is replaced with an equal amount of butyl rubber.
Comparative example 6
Similar to the components and parts by weight of example 1, the major difference is that the rock asphalt is replaced with an equivalent amount of asphalt and the chlorinated butyl rubber is replaced with an equivalent amount of butyl rubber.
Comparative example 7
Similar to the components and parts by weight of example 1, the main difference is that 17 parts of the silane coupling agent modified nano heavy calcium powder is replaced by 0.34 part of the silane coupling agent and 16.66 parts of the nano heavy calcium powder.
Test results
Examples and comparative examples were tested according to GB 328-2007 and GB 8624-2012.
The following table shows the results of performance testing of the modified asphalt coating samples prepared in examples 1-3 and comparative examples 1-7:
from the examples 1 to 3, it can be seen that the modified asphalt coating material and the flame-retardant waterproof coiled material asphalt capable of being exposed, SBS, chlorinated butyl rubber, desulfurization rubber powder and flame retardant are matched in a synergistic manner, so that the aging resistance and the bonding performance of the coating material can be stabilized and the flame retardant performance can be improved under the combined action of multiple components, and the flame retardant performance can reach the B2-level requirement.
Compared with example 1, comparative example 1 replaces rock asphalt with 90# asphalt equally, and it can be seen that the ageing resistance is reduced; similar to the components and parts by weight of example 2, comparative example 2 replaces the flame retardant with stone dust in equal amounts, and it can be seen that the flame retardant performance is reduced and the requirement of B2 grade cannot be met; compared with example 3, comparative example 3 replaces the chlorinated butyl rubber with the common butyl rubber in an equal amount, the upper surface of the waterproof coiled material is not covered by emulsion, the peeling strength between the coiled material and the cement mortar is obviously reduced, and the flame retardant property is reduced, because the chlorinated butyl rubber has a certain flame retardant property and adhesion property with the cement mortar due to chlorination, and the common butyl rubber has inflammability; compared with example 1, in comparative example 4, the flame retardant is removed, and the stone powder is replaced by the same amount, so that the peeling strength between the modified asphalt and cement is improved, the low-temperature flexibility is better, and the flame retardance is obviously reduced to be unqualified, because the rock asphalt, SBS, chlorinated butyl rubber and desulfurization rubber powder cannot provide an effective flame retardant effect in the modified asphalt coating material; compared with the example 1, in the comparative example 5, the chlorinated butyl rubber is replaced by butyl rubber in an equivalent way, so that the flame retardant property is reduced, the peeling strength is reduced by 20%, and the cement peeling is unqualified, because the addition of the flame retardant can influence the low temperature of the modified asphalt coating material and the peeling strength of the cement, and the modified asphalt coiled material with good flame retardant property and physical property is required to be added and matched with other components; in comparison with example 1, comparative example 6 replaced rock asphalt with asphalt and chlorinated butyl rubber with butyl rubber, it can be seen that the mineral aggregate adhesion was reduced to unacceptable, the peel strength to cement was also reduced to unacceptable, and the flame retardancy was reduced to B2E grade, as both had a related performance impact in the system to counteract the negative impact of the flame retardant. Compared with example 1, comparative example 7 replaces the silane coupling agent modified nano triple superphosphate powder with the mixture composed of the silane coupling agent and the nano triple superphosphate powder in equal amount, and it can be seen that the adhesiveness of the mineral aggregate is reduced to be failed, the low-temperature flexibility after aging is failed and the peel strength is reduced, probably due to the unstable chemical bond connection between the organic matter and the inorganic matter, the performance is reduced.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The modified asphalt coating material is characterized by comprising the following raw material components in parts by weight:
asphalt, 28-66 parts;
3-10 parts of rock asphalt;
10-15 parts of tackifier;
3-6 parts of SBS;
2-5 parts of chlorinated butyl rubber;
5-10 parts of desulfurization rubber powder;
12-20 parts of silane coupling agent modified heavy calcium powder;
5-15 parts of flame retardant.
2. The modified asphalt coating of claim 1, wherein the raw material component satisfies at least one of the following conditions:
(1) Based on the mass of the silane coupling agent modified heavy calcium powder, the mass fraction of the silane coupling agent is 1.5% -5%;
(2) The chlorination degree of the chlorinated butyl rubber is 1.8% -4.5%;
(3) The SBS is star SBS, wherein styrene: the mass ratio of butadiene is (2.8-3.5) (7.2-6.5), the melt index is less than or equal to 1, and the weight average molecular weight is 18-30W;
(4) The softening point of the rock asphalt is 145-160 ℃, the penetration is less than 1, and the solubility is more than 96%.
3. The modified asphalt coating material according to claim 1, wherein the silane coupling agent modified heavy calcium powder comprises a product prepared by the steps of:
mixing heavy calcium powder with a solvent to obtain a suspension;
adding stearic acid into the suspension, stirring and mixing, and then adding a silane coupling agent, stirring and mixing to obtain a mixed system;
and drying and grinding the mixed system to obtain the silane coupling agent modified heavy calcium powder.
4. A modified asphalt coating according to claim 1 or 3, wherein said raw material component satisfies at least one of the following conditions:
(1) The grain diameter of the rubber powder is 10-40mm;
(2) The particle size of the silane coupling agent modified heavy calcium powder is 0.075-0.084 mm;
(3) The grain diameter of the flame retardant is 0.013 mm-0.026 mm.
5. The modified asphalt coating material according to claim 1, wherein,
the tackifier comprises one or more of base oil, rubber oil R9, environment-friendly aromatic oil, butyl oleate and trioctyl citrate; and/or the number of the groups of groups,
the flame retardant comprises one or more of magnesium hydroxide, aluminum hydroxide, decabromodiphenyl ethane, antimonous oxide, taurine, polyphosphates and chlorinated polyethylene.
6. The preparation method of the modified asphalt coating material is characterized by comprising the following steps of:
providing a raw material according to the raw material components and parts by weight contained in the coating material according to any one of claims 1 to 5;
adding asphalt into a reaction vessel, and adding a tackifier into the reaction vessel in the stirring process to obtain a first mixture;
mixing and stirring SBS, chlorinated butyl rubber, rock asphalt and the first mixture to obtain a second mixture;
and mixing the desulfurization rubber powder with the second mixture, adding the filler and the flame retardant, and mixing and stirring to obtain the modified asphalt coating material.
7. The method for preparing a modified asphalt coating material according to claim 6, wherein the silane coupling agent modified heavy calcium powder is prepared by the following method:
mixing heavy calcium powder with a solvent to obtain a suspension;
adding stearic acid into the suspension, stirring and mixing, and then adding a silane coupling agent, stirring and mixing to obtain a mixed system;
and drying and grinding the mixed system to obtain the silane coupling agent modified heavy calcium powder.
8. The method of preparing a modified asphalt coating according to claim 6, wherein said step of obtaining a second mixture comprises: and mixing and stirring the SBS, the chlorinated butyl rubber, the rock asphalt and the first mixture at the temperature of 130-180 ℃, wherein the mixing and stirring comprises the steps of stirring at a low speed for 5-15min at 50-130 r/min, and then stirring at a high speed for 2.5-3h at 400-800 r/min.
9. The flame-retardant waterproof coiled material capable of being exposed is characterized by comprising a main body substrate layer, coating layers, a mineral particle layer and an isolation protective layer, wherein the coating layers are coated on two sides of the main body substrate layer;
wherein the coating layer is formed from the modified asphalt coating material according to any one of claims 1 to 5 or the modified asphalt coating material produced by the production method according to any one of claims 6 to 8.
10. The exposable flame retardant waterproof roll according to claim 9, wherein the thickness of the isolating protective layer is 0.3-0.5mm; and/or the number of the groups of groups,
the isolation protective layer is formed by polymer emulsion, and the polymer emulsion comprises one or more of silane modified acrylic emulsion, pure acrylic emulsion and fluorocarbon emulsion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311874304.6A CN117801785A (en) | 2023-12-29 | 2023-12-29 | Modified asphalt coating material, preparation method thereof and exposable flame-retardant waterproof coiled material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311874304.6A CN117801785A (en) | 2023-12-29 | 2023-12-29 | Modified asphalt coating material, preparation method thereof and exposable flame-retardant waterproof coiled material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101582214B1 (en) * | 2015-06-29 | 2016-01-12 | 한국건설생활환경시험연구원 | Modified asphalt waterproofing compositions using mineral powder |
| CN106515115A (en) * | 2016-11-23 | 2017-03-22 | 咸阳东方雨虹建筑材料有限公司 | Anti-aging elastomer-modified asphalt waterproof rolling material |
| CN108047951A (en) * | 2017-11-21 | 2018-05-18 | 广西武宣金牌防水材料科技有限公司 | Flame-retardant modified asphalt waterproofing paint and its production method |
| CN109880386A (en) * | 2019-02-27 | 2019-06-14 | 云南云天化以化磷业研究技术有限公司 | A kind of high-performance composite modified asphalt and preparation method thereof |
-
2023
- 2023-12-29 CN CN202311874304.6A patent/CN117801785A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101582214B1 (en) * | 2015-06-29 | 2016-01-12 | 한국건설생활환경시험연구원 | Modified asphalt waterproofing compositions using mineral powder |
| CN106515115A (en) * | 2016-11-23 | 2017-03-22 | 咸阳东方雨虹建筑材料有限公司 | Anti-aging elastomer-modified asphalt waterproof rolling material |
| CN108047951A (en) * | 2017-11-21 | 2018-05-18 | 广西武宣金牌防水材料科技有限公司 | Flame-retardant modified asphalt waterproofing paint and its production method |
| CN109880386A (en) * | 2019-02-27 | 2019-06-14 | 云南云天化以化磷业研究技术有限公司 | A kind of high-performance composite modified asphalt and preparation method thereof |
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