CN117569097B - Self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and preparation method thereof - Google Patents
Self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and preparation method thereof Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 66
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- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000002998 adhesive polymer Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 197
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- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 40
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- 238000002955 isolation Methods 0.000 claims description 58
- 238000002156 mixing Methods 0.000 claims description 33
- 239000003365 glass fiber Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 14
- 229920002799 BoPET Polymers 0.000 claims description 7
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 6
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 6
- MJINPUKGRATQAC-UHFFFAOYSA-N triethoxy(prop-1-enyl)silane Chemical compound CCO[Si](OCC)(OCC)C=CC MJINPUKGRATQAC-UHFFFAOYSA-N 0.000 claims description 6
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- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 11
- 239000012528 membrane Substances 0.000 description 11
- 239000000395 magnesium oxide Substances 0.000 description 8
- 230000032683 aging Effects 0.000 description 6
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- 230000000694 effects Effects 0.000 description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
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- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and a preparation method thereof, belonging to the technical field of building waterproof; the waterproof coiled material comprises a waterproof layer and a self-adhesive layer, wherein the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises the following raw materials in parts by mass: 70-85 parts of 90# petroleum asphalt, 8-15 parts of styrene-butadiene-styrene block copolymer, 10-20 parts of aromatic oil, 4-8 parts of organic montmorillonite and 1-2 parts of nano sulfur powder; the self-adhesive layer is composed of self-adhesive slurry, and the self-adhesive slurry comprises the following raw materials in parts by weight: 60-75 parts of 90# petroleum asphalt, 20-30 parts of liquid styrene-butadiene rubber, 10-15 parts of calcined dolomite powder and 1-3 parts of silane coupling agent; according to the invention, the raw material composition of the waterproof layer and the self-adhesive layer is optimized, so that on one hand, the mechanical strength and the thermal stability of the waterproof layer are improved, and on the other hand, the peel strength and the holding viscosity of the self-adhesive layer are improved, so that the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating has good mechanical properties and durability.
Description
Technical Field
The application relates to the technical field of building waterproofing, in particular to a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and a preparation method thereof.
Background
In recent years, novel building waterproof materials in China are rapidly developed, and the materials and the application enter a diversified development stage. The self-adhesive polymer modified asphalt waterproof coiled material has extremely strong adhesive property and self-healing property, good low temperature resistance, can realize the adhesion of a waterproof layer and a structural layer, achieves the skin-type waterproof effect, and is the best waterproof, dampproof and sealing material for building, subway, tunnel and immovable fire sites. And because the requirements on construction safety, environmental protection and the like are higher and higher, the self-adhesive polymer modified asphalt waterproof coiled material eliminates the problems of safety and environmental pollution of hot-melting construction, meets the social requirements of low carbon and environmental protection, and is favored by a plurality of design units and construction units.
Peel strength, hold-up and heat aging are important indicators considering the service performance of the self-adhesive coiled material, and directly affect the construction and durability of the coiled material. Styrene Butadiene Rubber (SBR) is used as an important modifier in the self-adhesive polymer modified asphalt waterproof coiled material, can obviously improve the low-temperature flexibility of the self-adhesive polymer modified asphalt, prolongs the sticking time, improves the peeling strength, and further improves the adhesive property of the coiled material.
The Chinese patent document with publication number of CN107236102A discloses a powdery polystyrene-b-random copolymerized conjugated diene/divinylbenzene rubber, a preparation method and application thereof, wherein the powdery styrene-butadiene rubber (PSBR for short) is used as an asphalt modifier in self-adhesive modified asphalt waterproof coiled materials and hot-melt modified asphalt waterproof coiled materials, the improvement of cohesive force of the system is not obvious, but the adhesive force of a self-adhesive layer is improved, and particularly the improvement effects of low-temperature flexibility, holding viscosity and peeling strength are obvious.
The Chinese patent document with publication number of CN107984823A discloses a self-adhesive modified asphalt waterproof coiled material and a production method thereof, wherein after substances such as styrene-butadiene rubber, SIS styrene-isoprene-styrene segmented copolymer and the like are modified on asphalt, the obtained modified asphalt has stable properties, the modified asphalt is used for preparing the waterproof coiled material, the performances such as tearing strength, peeling strength and the like of the produced waterproof coiled material are improved, the higher elongation at break is achieved, and the service life of the waterproof coiled material is prolonged. However, when the Styrene Butadiene Rubber (SBR) is added excessively, the ageing speed of the self-adhesive coiled material is obviously increased, the cohesive force is increased, and the peeling strength is obviously reduced.
Although styrene-butadiene rubber (SBR) has obvious advantages for improving the adhesive property of the self-adhesive polymer modified asphalt waterproof coiled material, the heat stability of the styrene-butadiene rubber (SBR) is insufficient, the styrene-butadiene rubber (SBR) is polymerized with styrene in a solvent or emulsion in a random mode, the chemical bonding force between a polybutadiene chain segment (PB) and a polystyrene chain segment (PS) is weaker than that of C-C, the styrene-butadiene rubber (SBR) is far weaker than that of C-C, and the polybutadiene chain segment also contains a double bond with higher activity, is easy to age and has poor heat stability, so that the inhibition of the heat aging of the styrene-butadiene rubber (SBR) is one of key technologies for improving the durability of the self-adhesive polymer modified asphalt waterproof coiled material.
Disclosure of Invention
The application provides a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating and a preparation method thereof, so as to solve the problem of poor thermal oxygen stability of the existing waterproof coiled material.
The application provides a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, which comprises a waterproof layer and a self-adhesive layer, wherein the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises, by weight, 70-85 parts of 90# petroleum asphalt, 8-15 parts of styrene-butadiene-styrene block copolymer, 10-20 parts of aromatic hydrocarbon oil, 4-8 parts of organic montmorillonite and 1-2 parts of nano sulfur powder; the self-adhesive layer is composed of self-adhesive slurry, and the raw materials of the self-adhesive slurry comprise 60-75 parts of 90# petroleum asphalt, 20-30 parts of liquid styrene-butadiene rubber, 10-15 parts of calcined dolomite powder and 1-3 parts of silane coupling agent according to parts by weight.
As an alternative implementation way, the waterproof layer is made up of waterproof slurry, waterproof slurry raw materials include 90# petroleum pitch 75-80 parts, styrene-butadiene-styrene block copolymer 10-13 parts, aromatic hydrocarbon oil 13-17 parts, organic montmorillonite 5-7 parts and nanometer sulfur powder 1.3-1.7 parts by weight; the self-adhesive layer is composed of self-adhesive slurry, and the raw materials of the self-adhesive slurry comprise 65-70 parts by weight of 90# petroleum asphalt, 23-27 parts by weight of liquid styrene-butadiene rubber, 12-13 parts by weight of calcined dolomite powder and 1.5-2.5 parts by weight of silane coupling agent.
As an alternative embodiment, the particle size of the calcined dolomite powder is 1-80 μm; or/and, the mass ratio of free MgO in the calcined dolomite powder is not less than 85 percent.
As an alternative embodiment, the density of the liquid styrene-butadiene rubber is 0.7-0.95 g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the And/or the molecular weight of the liquid styrene-butadiene rubber is 45000-5500 g/mol.
As an alternative embodiment, the silane coupling agent is at least one of propenyl triethoxysilane, gamma-aminopropyl triethoxysilane, and vinyl triethoxysilane.
As an optional implementation mode, the waterproof coiled material further comprises a first isolation layer, a tire base layer and a second isolation layer, wherein the first isolation layer, the waterproof layer, the tire base layer, the self-adhesive layer and the second isolation layer are sequentially arranged layer by layer.
As an alternative embodiment, the first isolation layer and the second isolation layer are respectively selected from one of a PE film, a PET film or a PVC film; and/or the base layer comprises a glass fiber mat or a glass fiber reinforced polyester mat.
In a second aspect, the application provides a preparation method of a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, which is carried out according to the following method:
firstly, coating waterproof slurry on the upper surface of a tire base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
and thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
As an alternative embodiment, the waterproof slurry is obtained as follows:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
As an alternative embodiment, the self-adhesive paste is obtained by the following method:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react, and obtaining the self-adhesive slurry.
According to the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, the raw material composition of the waterproof layer and the self-adhesive layer is optimized, so that on one hand, the mechanical strength and the thermal stability of the waterproof layer are improved, on the other hand, the self-adhesive layer modifies petroleum asphalt through silane, so that the interfacial adhesion between the petroleum asphalt and concrete is further improved, and finally, the peeling strength and the holding viscosity of the self-adhesive layer are improved, so that the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating has good mechanical properties and durability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a waterproof roll provided in an embodiment of the present application;
fig. 2 is a schematic flow chart of a method according to an embodiment of the present application.
Reference numerals: 1-a first isolation layer, 2-a waterproof layer, 3-a tyre base layer, 4-a self-adhesive layer and 5-a second isolation layer.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
Unless specifically indicated otherwise, the various raw materials, reagents, instruments, equipment, and the like used in this application are commercially available or may be prepared by existing methods.
Fig. 1 is a schematic structural diagram of a waterproof roll provided in an embodiment of the present application; as shown in fig. 1, the embodiment of the application provides a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, the waterproof coiled material comprises a waterproof layer and a self-adhesive layer, the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises, by weight, 70-85 parts of 90# petroleum asphalt, 8-15 parts of styrene-butadiene-styrene block copolymer, 10-20 parts of aromatic oil, 4-8 parts of organic montmorillonite and 1-2 parts of nano sulfur powder; the self-adhesive layer is composed of self-adhesive slurry, and the raw materials of the self-adhesive slurry comprise 60-75 parts of 90# petroleum asphalt, 20-30 parts of liquid styrene-butadiene rubber, 10-15 parts of calcined dolomite powder and 1-3 parts of silane coupling agent according to parts by weight.
Compared with the prior art, the invention has the following advantages:
firstly, the raw material nano sulfur powder is added into the waterproof layer, so that the waterproof layer has higher specific surface area, can generate certain crosslinking with petroleum asphalt and styrene-butadiene-styrene block copolymer (SBS), and can effectively improve the high-temperature stability of the waterproof layer. Meanwhile, the organic montmorillonite which is lamellar silicate mineral is added in the waterproof layer, so that the heat aging of the waterproof layer can be effectively inhibited, and finally, the problem of poor heat stability of the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is solved.
Secondly, the self-adhesive layer is added with the raw material liquid styrene-butadiene rubber, and the liquid styrene-butadiene rubber is a random high polymer prepared by polymerizing styrene and butadiene monomers through anionic solution, thus the self-adhesive layer belongs to a non-aqueous system, is a viscous liquid at normal temperature, and has the density of 0.70-0.95 g/cm 3 The molecular weight is 45000-5500 g/mol, and the liquid styrene-butadiene rubber is added into the self-adhesive layer, so that the peel strength and the holding viscosity of petroleum asphalt can be remarkably improved, the stiffness modulus is low, and the effects of inhibiting crack expansion and healing cracks are achieved.
Meanwhile, a raw material silane coupling agent is added into the self-adhesive layer, the silane coupling agent is more than one of propenyl triethoxysilane, gamma-aminopropyl triethoxysilane and vinyl triethoxysilane, and because the silane coupling agent contains a plurality of functional groups of compounds, one end of the silane coupling agent can be subjected to condensation reaction with hydroxyl on the surface of magnesium oxide in calcined dolomite powder, so that the surface of the magnesium oxide is changed from hydrophilic to hydrophobic, the compatibility and dispersibility of the magnesium oxide and petroleum asphalt and styrene-butadiene rubber are improved, the other end of the silane coupling agent is connected with carboxyl of the petroleum asphalt, a 'molecular bond bridge' is formed between the magnesium oxide and an asphalt matrix, the interfacial binding force of the magnesium oxide and the petroleum asphalt is enhanced through chemical bond interaction, and the petroleum asphalt is coupled into a macromolecule with reactivity.
In a word, the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating optimizes the raw material composition of the waterproof layer and the self-adhesive layer, so that on one hand, the mechanical strength and the thermal stability of the waterproof layer are improved, and on the other hand, the self-adhesive layer modifies petroleum asphalt through silane to further improve the interfacial adhesion force between the petroleum asphalt and concrete, and finally, the peeling strength and the holding viscosity of the self-adhesive layer are improved, so that the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating has good mechanical property and durability.
In some embodiments, the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises, by weight, 75-80 parts of 90# petroleum asphalt, 10-13 parts of styrene-butadiene-styrene block copolymer, 13-17 parts of aromatic oil, 5-7 parts of organic montmorillonite and 1.3-1.7 parts of nano sulfur powder; the self-adhesive layer is composed of self-adhesive slurry, and the raw materials of the self-adhesive slurry comprise 65-70 parts by weight of 90# petroleum asphalt, 23-27 parts by weight of liquid styrene-butadiene rubber, 12-13 parts by weight of calcined dolomite powder and 1.5-2.5 parts by weight of silane coupling agent.
In some embodiments, the particle size of the calcined dolomite powder is 1-80 μm, and the mass ratio of free MgO in the calcined dolomite powder is not less than 85%. The preparation method of the calcined dolomite powder comprises the steps of crushing dolomite, calcining at 1200-1800 ℃, and grinding to 1-80 mu m through natural cooling to obtain the calcined dolomite powder, wherein the mass ratio of free MgO is not less than 85%.
In some embodiments, the molecular weight of the styrene-butadiene-styrene block copolymer is 80000 to 150000g/mol.
In some embodiments, the density of the liquid styrene-butadiene rubber is 0.7 to 0.95g/cm 3 The molecular weight of the liquid styrene-butadiene rubber is 45000-5500g/mol.
In some embodiments, the waterproof roll further comprises a first isolation layer, a tire base layer and a second isolation layer, wherein the first isolation layer, the waterproof layer, the tire base layer, the self-adhesive layer and the second isolation layer are sequentially arranged layer by layer. Further, the first isolation layer and the second isolation layer are respectively selected from one of PE film, PET film or PVC film; the base layer comprises glass fiber felt or glass fiber reinforced polyester felt.
Fig. 2 is a schematic flow chart of a method provided in an embodiment of the present application, and as shown in fig. 2, based on a general inventive concept, the embodiment of the present application further provides a method for preparing a self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, which is performed according to the following method:
firstly, obtaining a base layer by using a glass fiber felt or a glass fiber reinforced polyester felt, coating waterproof slurry on the upper surface of the base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
wherein, the waterproof slurry is prepared by the following steps:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
specifically, in the embodiment, 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil are added into a reaction kettle according to parts by weight, and the reaction kettle is heated to 150-160 ℃ and then stirred and mixed at a high speed for 10-20 minutes; then raising the temperature of the reaction kettle to 160-170 ℃ and shearing at a high speed for 30-40 minutes; a first intermediate is obtained.
S2, adding the required amount of organic montmorillonite and nano sulfur powder into the first intermediate, and mixing and reacting to obtain waterproof slurry;
specifically, in the embodiment, the temperature of the reaction kettle is kept at 160-170 ℃, organic montmorillonite and nano sulfur powder are added in sequence, and stirring and mixing are carried out for 5-10 minutes; then the temperature of the reaction kettle is kept at 150-160 ℃, and the water-proof slurry is obtained by stirring for 100-120 minutes at a low speed.
The method comprises the steps of coating waterproof slurry on the upper surface of a tire base layer, changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified, and specifically comprises the steps of spreading the tire base layer on a production line, spraying the waterproof slurry, controlling the thickness by calculating the volume and the spraying area of the sprayed waterproof slurry, and obtaining the waterproof layer after the waterproof slurry is cooled and solidified.
Secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
wherein, the self-adhesive sizing agent is obtained by the following method:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
specifically, in this embodiment, 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder are added into a reaction kettle according to parts by weight, the temperature of the reaction kettle is heated to 150-160 ℃, and then the mixture is stirred and mixed at a high speed for 10-20 minutes, so as to obtain a second intermediate.
S2, mixing the second intermediate with a required amount of silane coupling agent to react to obtain self-adhesive slurry;
specifically, in the embodiment, the temperature of the reaction kettle is maintained unchanged, a silane coupling agent is added, and the mixture is stirred at a high speed for 10-20 minutes to obtain self-adhesive slurry.
The self-adhesive slurry is coated on the lower surface of the tire base layer, after the self-adhesive slurry is cooled and solidified, the self-adhesive slurry is changed into a self-adhesive layer, specifically, the tire base layer after the waterproof slurry is sprayed in a turnover mode is sprayed with the self-adhesive slurry, the thickness control is carried out by calculating the volume and the spraying area of the self-adhesive slurry, and after the self-adhesive slurry is cooled and solidified, the self-adhesive layer is obtained.
And thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
In some embodiments, the method further comprises metering, trimming, rolling, packaging, and the like, the self-adhesive polymer modified asphalt waterproofing membrane based on layered coating.
The present application is further illustrated below in conjunction with specific examples. It should be understood that these examples are illustrative only of the present application and are not intended to limit the scope of the present application. The experimental procedures, which are not specified in the following examples, are generally determined according to national standards. If the corresponding national standard does not exist, the method is carried out according to the general international standard, the conventional condition or the condition recommended by the manufacturer.
Example 1:
the utility model provides a self-adhesion polymer modified asphalt waterproofing membrane based on layering application, this waterproofing membrane is five-layer structure, from the top down is in proper order: the first isolation layer, the waterproof layer, the tyre base layer, the self-adhesive layer and the second isolation layer;
the layers are respectively as follows:
the first isolation layer adopts PE film.
The waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises the following raw materials in parts by weight: 70 parts of 90# petroleum asphalt, 8 parts of a styrene-butadiene-styrene block copolymer (molecular weight is 130000 g/mol), 10 parts of aromatic oil, 4 parts of organic montmorillonite and 1 part of nano sulfur powder; the waterproof slurry is prepared by the following steps:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
The base layer adopts glass fiber reinforced polyester felt.
The self-adhesive layer is composed of self-adhesive slurry, and the self-adhesive slurry comprises the following raw materials in parts by mass: 60 parts of 90# petroleum asphalt, 20 parts of liquid styrene-butadiene rubber (with the molecular weight of 50000 g/mol), 10 parts of calcined dolomite powder and 1 part of silane coupling agent (propenyl triethoxysilane); self-adhesive slurry is prepared by the following steps:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react, and obtaining the self-adhesive slurry.
The second isolation layer adopts PET film.
The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is prepared by the following steps:
firstly, obtaining a base layer by using a glass fiber reinforced polyester felt, coating waterproof slurry on the upper surface of the base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
and thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
Example 2:
the utility model provides a self-adhesion polymer modified asphalt waterproofing membrane based on layering application, this waterproofing membrane is five-layer structure, from the top down is in proper order: the first isolation layer, the waterproof layer, the tyre base layer, the self-adhesive layer and the second isolation layer;
the layers are respectively as follows:
the first isolation layer adopts PE film.
The waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises the following raw materials in parts by weight: 75 parts of 90# petroleum asphalt, 10 parts of styrene-butadiene-styrene block copolymer (with the molecular weight of 130000 g/mol), 15 parts of aromatic oil, 6 parts of organic montmorillonite and 1.5 parts of nano sulfur powder; the waterproof slurry is prepared by the following steps:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
The base layer adopts glass fiber reinforced polyester felt.
The self-adhesive layer is composed of self-adhesive slurry, and the self-adhesive slurry comprises the following raw materials in parts by mass: 65 parts of 90# petroleum asphalt, 25 parts of liquid styrene-butadiene rubber (with the molecular weight of 50000 g/mol), 12 parts of calcined dolomite powder and 2 parts of silane coupling agent (gamma-aminopropyl triethoxysilane); self-adhesive slurry is prepared by the following steps:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react to obtain self-adhesive slurry;
the second isolation layer adopts PET film.
The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is prepared by the following steps:
firstly, obtaining a base layer by using a glass fiber reinforced polyester felt, coating waterproof slurry on the upper surface of the base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
and thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
Example 3:
the utility model provides a self-adhesion polymer modified asphalt waterproofing membrane based on layering application, this waterproofing membrane is five-layer structure, from the top down is in proper order: the first isolation layer, the waterproof layer, the tyre base layer, the self-adhesive layer and the second isolation layer;
the layers are respectively as follows:
the first isolation layer adopts a PE film;
the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises the following raw materials in parts by weight: 80 parts of 90# petroleum asphalt, 12 parts of a styrene-butadiene-styrene block copolymer (with the molecular weight of 130000 g/mol), 18 parts of aromatic hydrocarbon oil, 7 parts of organic montmorillonite and 2 parts of nano sulfur powder; the waterproof slurry is prepared by the following steps:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
The base layer adopts glass fiber reinforced polyester felt.
The self-adhesive layer is composed of self-adhesive slurry, and the self-adhesive slurry comprises the following raw materials in parts by mass: 70 parts of 90# petroleum asphalt, 30 parts of liquid styrene-butadiene rubber (with the molecular weight of 50000 g/mol), 15 parts of calcined dolomite powder and 2 parts of silane coupling agent (vinyl triethoxysilane); self-adhesive slurry is prepared by the following steps:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react to obtain self-adhesive slurry;
the second isolation layer adopts PET film.
The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is prepared by the following steps:
firstly, obtaining a base layer by using a glass fiber reinforced polyester felt, coating waterproof slurry on the upper surface of the base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
and thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
Example 4:
the utility model provides a self-adhesion polymer modified asphalt waterproofing membrane based on layering application, this waterproofing membrane is five-layer structure, from the top down is in proper order: the first isolation layer, the waterproof layer, the tyre base layer, the self-adhesive layer and the second isolation layer;
the layers are respectively as follows:
the first isolation layer adopts a PE film;
the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises the following raw materials in parts by weight: 85 parts of 90# petroleum asphalt, 15 parts of a styrene-butadiene-styrene block copolymer (with the molecular weight of 130000 g/mol), 20 parts of aromatic oil, 8 parts of organic montmorillonite and 2 parts of nano sulfur powder; the waterproof slurry is prepared by the following steps:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
The base layer adopts glass fiber reinforced polyester felt.
The self-adhesive layer is composed of self-adhesive slurry, and the self-adhesive slurry comprises the following raw materials in parts by mass: 75 parts of 90# petroleum asphalt, 30 parts of liquid styrene-butadiene rubber (with the molecular weight of 50000 g/mol), 15 parts of calcined dolomite powder and 3 parts of silane coupling agent; wherein the silane coupling agent specifically comprises: 1 part of propenyl triethoxysilane, 1 part of gamma-aminopropyl triethoxysilane, and 1 part of vinyl triethoxysilane; self-adhesive slurry is prepared by the following steps:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react, and obtaining the self-adhesive slurry.
The second isolation layer adopts PET film.
The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is prepared by the following steps:
firstly, obtaining a base layer by using a glass fiber reinforced polyester felt, coating waterproof slurry on the upper surface of the base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
and thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
Comparative example 1:
the utility model provides a self-adhesion polymer modified asphalt waterproofing membrane based on layering application, this waterproofing membrane is five-layer structure, from the top down is in proper order: the first isolation layer, the first self-adhesive layer, the tyre base layer, the second self-adhesive layer and the second isolation layer;
the layers are respectively as follows:
the first isolation layer adopts a PE film;
the first self-adhesive layer is composed of self-adhesive slurry, and the raw materials of the self-adhesive slurry comprise the following components in parts by mass: 75 parts of 90# petroleum asphalt, 30 parts of liquid styrene-butadiene rubber (with the molecular weight of 50000 g/mol), 15 parts of calcined dolomite powder and 3 parts of silane coupling agent; wherein the silane coupling agent specifically comprises: 1 part of propenyl triethoxysilane, 1 part of gamma-aminopropyl triethoxysilane and 1 part of vinyl triethoxysilane; self-adhesive slurry is prepared by the following steps:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react, and obtaining the self-adhesive slurry.
The base layer adopts glass fiber reinforced polyester felt;
the second self-adhesive layer is the same as the first self-adhesive layer;
the second isolation layer adopts PE film.
The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is prepared by the following steps:
firstly, obtaining a base layer by using a glass fiber reinforced polyester felt, coating self-adhesive slurry on the upper surface of the base layer, and after the self-adhesive slurry is cooled and solidified, completing the preparation of a first self-adhesive layer;
coating self-adhesive slurry on the lower surface of the tire base layer, and cooling and solidifying the self-adhesive slurry to finish the preparation of a second self-adhesive layer;
and thirdly, arranging a first isolation layer on the upper surface of the first self-adhesive layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the second self-adhesive layer and on one surface far away from the tire base layer, thereby obtaining the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
Comparative example 2: the existing modified asphalt waterproof coiled material (provided by eastern rainbow company), wherein two asphalt layers of the modified asphalt waterproof coiled material provided by the company are respectively of the same formula, and are different from the self-adhesive layer and the waterproof layer which are independently designed by the invention.
The self-adhesive polymer modified asphalt waterproof coiled materials based on layered coating prepared in the embodiments 1 to 4 of the present invention were subjected to mechanical property test. Mechanical properties including stretchability, low-temperature flexibility, water impermeability, peel strength and holding power, thermal stability including heat aging, mechanical property test was conducted with reference to the method specified in GB 23441 "self-adhesive polymer modified asphalt waterproof roll", heat aging performance was conducted in an oven at around 70 ℃, and comparative examples 1 and 2 were used as controls.
As shown in table 1, it is clear from table 1 that, compared with the existing modified asphalt waterproof coiled material (without waterproof layer) of comparative example 1, the self-adhesive polymer modified asphalt waterproof coiled materials based on layered coating prepared in examples 1 to 4 of the present invention have better tensile property and thermal aging property, and simultaneously have better peel strength and holding viscosity, which indicates that the self-adhesive polymer modified asphalt waterproof coiled materials based on layered coating of the present invention have better mechanical property and thermal stability.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
TABLE 1
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Claims (8)
1. The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is characterized by comprising a waterproof layer and a self-adhesive layer, wherein the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises, by weight, 70-85 parts of 90# petroleum asphalt, 8-15 parts of styrene-butadiene-styrene block copolymer, 10-20 parts of aromatic oil, 4-8 parts of organic montmorillonite and 1-2 parts of nano sulfur powder; the self-adhesive layer consists of self-adhesive slurry, wherein the raw materials of the self-adhesive slurry comprise 60-75 parts of 90# petroleum asphalt, 20-30 parts of liquid styrene-butadiene rubber, 10-15 parts of calcined dolomite powder and 1-3 parts of silane coupling agent in parts by weight; wherein the particle size of the calcined dolomite powder is 1-80 mu m; the mass ratio of free MgO in the calcined dolomite powder is not less than 85%; the density of the liquid styrene-butadiene rubber is 0.7-0.95 g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The molecular weight of the liquid styrene-butadiene rubber is 45000-5500 g/mol, and the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating is obtained by the following method:
firstly, coating waterproof slurry on the upper surface of a tire base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on the surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on the surface far away from the tire base layer, so as to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating; wherein, the waterproof slurry is prepared by the following steps: s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate; s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
2. The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating according to claim 1, wherein the waterproof layer is composed of waterproof slurry, and the waterproof slurry comprises, by weight, 75-80 parts of 90# petroleum asphalt, 10-13 parts of styrene-butadiene-styrene block copolymer, 13-17 parts of aromatic hydrocarbon oil, 5-7 parts of organic montmorillonite and 1.3-1.7 parts of nano sulfur powder; or/and the self-adhesive layer is composed of self-adhesive slurry, wherein the raw materials of the self-adhesive slurry comprise, by weight, 65-70 parts of 90# petroleum asphalt, 23-27 parts of liquid styrene-butadiene rubber, 12-13 parts of calcined dolomite powder and 1.5-2.5 parts of silane coupling agent.
3. The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating according to claim 1 or 2, wherein the silane coupling agent is at least one of propenyl triethoxysilane, gamma-aminopropyl triethoxysilane and vinyl triethoxysilane.
4. The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating according to claim 1 or 2, wherein the waterproof coiled material further comprises a first isolation layer, a tire base layer and a second isolation layer, and the first isolation layer, the waterproof layer, the tire base layer, the self-adhesive layer and the second isolation layer are sequentially arranged layer by layer.
5. The self-adhesive polymer modified asphalt waterproof coiled material based on layered coating according to claim 4, wherein the first isolation layer and the second isolation layer are respectively selected from one of PE film, PET film or PVC film; or/and the base layer comprises glass fiber felt or glass fiber reinforced polyester felt.
6. A method for preparing the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating according to claim 1, 2 or 5, which is characterized by comprising the following steps:
firstly, coating waterproof slurry on the upper surface of a tire base layer, and changing the waterproof slurry into a waterproof layer after the waterproof slurry is cooled and solidified;
secondly, coating self-adhesive slurry on the lower surface of the tire base layer, and changing the self-adhesive slurry into a self-adhesive layer after the self-adhesive slurry is cooled and solidified;
and thirdly, arranging a first isolation layer on the upper surface of the waterproof layer and on one surface far away from the tire base layer, and arranging a second isolation layer on the lower surface of the self-adhesive layer and on one surface far away from the tire base layer to obtain the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating.
7. The preparation method of the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, which is characterized in that the waterproof slurry is prepared by the following steps:
s1, mixing 90# petroleum asphalt, a styrene-butadiene-styrene block copolymer and aromatic oil with required amounts for reaction to obtain a first intermediate;
s2, adding the organic montmorillonite with required amount and nano sulfur powder into the first intermediate, and mixing and reacting to obtain the waterproof slurry.
8. The preparation method of the self-adhesive polymer modified asphalt waterproof coiled material based on layered coating, which is characterized in that the self-adhesive slurry is obtained by the following steps:
s1, mixing and reacting required amount of 90# petroleum asphalt, liquid styrene-butadiene rubber and calcined dolomite powder to obtain a second intermediate;
s2, mixing the second intermediate with a required amount of silane coupling agent to react, and obtaining the self-adhesive slurry.
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