A self-adhesive modified bitumen waterproofing membrane

Abstract

The present invention designs a self-adhesive waterproof coiled material, which is composed of a non-stick isolation layer from top to bottom, a wetting adhesive coating layer with a thickness of 0.2 - 0.3 mm, a coating layer with a thickness of 0.7 - 1.3 mm, and a carcass structure layer with a thickness of 0.1 - 0.2 mm. The waterproof coiled material described in the invention adopts a special design of two inner and outer coating layers with different components, so that the outer wetting adhesive coating layer has excellent wetting and penetration effects with the base layer, and has excellent bonding effect with the base layer. At the same time, after construction, the oil in the outer wetting adhesive layer will penetrate into the inner coating layer, avoiding the situation that the oil in the coating layer of the self-adhesive coiled material seeps out to the surface of the base layer, thereby reducing the long-term bonding effect of the material, and greatly improving the initial adhesion and holding adhesion of the self-adhesive waterproof coiled material.

Description

Technical Field

[0001] The present invention belongs to the field of modified asphalt waterproof coiled materials, and specifically relates to self-adhesive modified asphalt waterproof coiled materials. Background Art

[0002] Modified asphalt waterproof coiled materials are divided into hot-melt modified asphalt waterproof coiled materials and self-adhesive modified asphalt waterproof coiled materials. They are a kind of sheet coiled materials prepared by using asphalt as the main material, adding modifiers, fillers, auxiliaries and other materials to prepare modified asphalt coating materials, and then matching with base fabrics / carriers and anti-sticking materials. During hot-melt construction, a hot air gun or other heating devices are used to melt the lower surface of the coiled material and then lay it on the base layer. During self-adhesive coiled material construction, after removing the anti-sticking isolation layer, it can be directly laid on the base layer.

[0003] Self-adhesive modified asphalt waterproof coiled materials are increasingly favored and valued by waterproof customers because of their cold construction, without the need for hot-melt devices, and can be directly pasted after removing the anti-sticking isolation layer. Compared with hot-melt modified asphalt waterproof coiled materials, their convenient construction effect has significantly reduced the waterproof construction period. Especially when the current environmental protection standards are further implemented and the application scope of hot-melt modified asphalt coiled materials is further limited, self-adhesive modified asphalt waterproof coiled materials will surely have a broader application prospect. However, self-adhesive modified asphalt waterproof coiled materials also have certain problems in use, mainly reflected in the fact that their low-temperature resistance performance of the materials is not as excellent as that of common hot-melt modified asphalt waterproof coiled materials. The low-temperature limit of common hot-melt modified asphalt waterproof coiled materials can reach -30 to -35°C or above, while self-adhesive coiled materials generally can only reach -20 to -30°C, and the use of materials is limited in some extreme low-temperature environments. More importantly, due to its special self-adhesive bonding design, compared with hot-melt bonded modified asphalt waterproof coiled materials, the bonding effect with the base layer is much lower than that of hot-melt coiled materials. Generally, in the initial stage of product construction, due to the good wetting effect of the materials, a certain bonding strength and waterproof tightness can be ensured. However, after construction for a period of time, due to the aging and detachment of the rubber material that plays a bonding role in the coating material, the overall volatilization and penetration of the oil component that plays a wetting effect, its long-term adhesive force will drop significantly. At the same time, the excess volatilized oil component will form an oil separation layer between the self-adhesive coiled material and the waterproof base layer, which will further reduce the long-term bonding effect after material construction. Especially in some waterproof material construction environments with low winter temperatures, due to the further reduction of the wetting effect of the coiled material coating on the base material at low temperatures, it will lead to the synchronous decline of the initial adhesion effect and the continuous bonding effect of the material, resulting in a significant decrease in the construction convenience of the material and affecting the service life of the material.

[0004] Therefore, designing a self-adhesive waterproof coiled material that can ensure the initial adhesion and continuous bonding effect of the material, and improving the low-temperature limit performance of the self-adhesive modified asphalt waterproof coiled material to a certain extent will have great application significance for further expanding the application range of the self-adhesive modified asphalt waterproof coiled material, ensuring the long-term bonding density between the waterproof coiled material and the base layer after construction, and improving the bonding effect of the material on the base material in the low-temperature environment in winter. Summary of the Invention

[0005] The object of the present invention is to address the deficiencies of the prior art and design a self-adhesive modified asphalt waterproof coiled material with good initial adhesion and tack. The low-temperature performance of this modified asphalt waterproof coiled material can reach below -35°C, which can meet the use requirements of self-adhesive waterproof materials in some special climate environments. Moreover, in the low-temperature environment outdoors in winter, it can ensure good initial adhesion and bonding effect of the material. After three months of outdoor exposed construction, the bonding and peeling strength of the designed self-adhesive coiled material hardly decays, and after one year of outdoor aging, the bonding and peeling strength only decreases by 5% - 10%.

[0006] To achieve the above object, the present invention provides a self-adhesive modified asphalt waterproof coiled material, which is composed of an anti-sticking isolation layer from top to bottom, a wetting and bonding coating layer with a thickness of 0.2 - 0.3 mm, a coating layer with a thickness of 0.7 - 1.3 mm, and a carcass structure layer with a thickness of 0.1 - 0.2 mm. Among them, the wetting and bonding coating layer is prepared from 100 parts by mass of heavy traffic asphalt, 20 - 30 parts by mass of softening oil, 10 - 15 parts by mass of tackifying filling oil, 8 - 15 parts by mass of SBS, 5 - 10 parts by mass of SBR, 3 - 6 parts by mass of SIS, 3 - 5 parts by mass of tackifying resin, 2 - 3 parts by mass of thixotropic agent, 5 - 10 parts by mass of No. 1 filler, and 5 - 10 parts by mass of No. 2 filler. The coating layer is prepared from 100 parts by mass of heavy traffic asphalt, 20 - 30 parts by mass of softening oil, 10 - 20 parts by mass of SBS, 5 - 8 parts by mass of SBR, and 40 - 60 parts by mass of No. 1 filler.

[0007] Preferably, the upper isolation layer is made of polyethylene / polypropylene film material, and its lower surface is coated with anti-sticking silicone oil, with an overall thickness of 0.01 mm.

[0008] Preferably, the carcass structure layer is a polyethylene cross-laminated film material, which is cross-pressed at 90°C in double layers.

[0009] Preferably, the heavy traffic asphalt is 70# heavy traffic asphalt, and the penetration of the asphalt is between 70 and 85.

[0010] Preferably, the softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, and the mass ratio is naphthenic oil: aromatic oil = 0-40: 60-100. Among them, the saturated hydrocarbon content of naphthenic oil is 82-88%, the aromatic content of aromatic oil is ≥85%, and the pour points are all ≤ -15°C. The filling oil is a rubber filling oil with a viscosity of 3000-6000 mpa.s and a saturated content of ≤40%.

[0011] Preferably: the SBS is a styrene-butadiene-styrene block copolymer with a molecular weight of 80,000-160,000;

[0012] The SBR is granular styrene-butadiene rubber, which is prepared by crushing SBR rubber asphalt, and more than 80% of the particle size is 0.2-0.3 mm;

[0013] The SIS is a styrene-isoprene-styrene front copolymer with a molecular weight of 100,000-150,000;

[0014] The tackifying resin is composed of one or several of phenolic resin, terpene resin, rosin, and C5 petroleum resin;

[0015] The thixotropic agent is composed of one or several of polyamide wax, hydrophobic fumed silica, and flaky bentonite.

[0016] Preferably, the No. 1 filler is composed of one or two of talcum powder with a mesh number of 400-600 and heavy calcium carbonate with a mesh number of 400-600, and the No. 2 filler is composed of one or two of nano calcium carbonate with a mesh number of 3000-6000 and kaolin with a mesh number of 1250-3000

[0017] Preferably, the preparation process of the wetting and bonding layer coating material is as follows:

[0018] Step 1: Preheat the reaction kettle to above 130°C, add 70# heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 160-165°C, keep warm and control the temperature within the range of 160-165°C;

[0019] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 minutes;

[0020] Step 3: Add the thixotropic agent and stir at high speed for 30 minutes to activate the thixotropic agent;

[0021] Step 4: Add the tackifying resin and stir for 10 minutes to mix evenly;

[0022] Step 5: Add the filler, turn on the grinding system, and grind and stir for 60 minutes

[0023] Step 6: Import the material into the production equipment for forming.

[0024] Preferably, the preparation process of its coating layer is as follows:

[0025] Step 1: Preheat the reaction kettle to above 130 °C, add 70# heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 170 - 175 °C, keep the temperature within the range of 170 - 175 °C for heat preservation.

[0026] Step 2: Add SBS and SBR in sequence and stir at high speed for 30 min.

[0027] Step 3: Add fillers, start the grinding system, and grind and stir for 60 minutes.

[0028] Step 4: Import the material into the production equipment for forming.

[0029] Preferably, its forming process is as follows:

[0030] Step 1: Unroll the carcass structural layer on the oiling table.

[0031] Step 2: After cooling the exported coating material to below 100 °C, coat it on the structural layer according to the designed thickness.

[0032] Step 3: Cool the exported wetting and sticky coating material to 70 - 80 °C, and coat it on the coating layer according to the designed thickness.

[0033] Step 4: Pull the coil for cooling. When the surface temperature of the coil drops to below 50 °C, coat the unrolled anti-sticking isolation layer on the coil, cool it, and wind it up to obtain the self-adhesive waterproof coil.

[0034] The beneficial effects of the present invention are as follows:

[0035] (1) The thickness of the wetting and bonding coating layer on the outer layer of the present invention is 0.2 - 0.3 mm. The material design adopts a thixotropic system with more oil and less filler and a designed ratio. The combined action of softening oil, filling oil, tackifying resin, and rubber ensures good wetting effect and initial adhesion of the material, which can form a good adhesive force with the cement base material during the bonding construction of self-adhesive coils. Compared with the self-adhesive polymer modified bitumen waterproof material with a conventional single-layer coating, its initial adhesion effect is extremely excellent, and it can ensure the wetting and bonding effect of the material in a low-temperature environment. The selection and matching of fillers and the addition of appropriate thixotropic agents enable the material to have good dimensional stability and anti-slip ability, reducing the risk of coil slippage caused by the design of materials with high wettability and high bonding effect, and inhibiting the precipitation of oil after construction. (2) The thickness of the inner coating layer designed by the present invention is 0.7 - 1.3 mm. The combination of a higher proportion of elastomer SBS material and a higher filler proportion is used, making the overall low-temperature resistance performance of the self-adhesive coil more excellent. The detected low-temperature resistance performance can reach above -32°C, far exceeding the standard requirements of current self-adhesive waterproof coils. Through the combined use of the outer bonding layer and the inner coating layer, the unity of high bonding effect and high cohesion / high low-temperature resistance effect of the material is achieved. At the same time, the combined use of the designed ratio of elastomer material and filler can not only ensure the basic high and low-temperature resistance and bonding performance of the material, but also realize the inward penetration of light-component oily substances in the wetting and bonding layer coating, greatly reducing the decrease in long-term adhesiveness caused by the precipitation of oil to the base surface to form an isolation layer after the construction of self-adhesive materials, and improving the holding adhesiveness of the material.

[0036] For a better understanding of the essence of the present invention, the following examples are given for detailed illustration: Specific embodiments

[0037] Example 1:

[0038] A self-adhesive modified bitumen waterproof coil, which is composed of an anti-sticking isolation layer from top to bottom, a 0.2-mm-thick wetting and bonding coating layer, a 1.0-mm-thick coating layer, and a 0.2-mm-thick carcass structure layer.

[0039] The composition of its wetting and bonding coating layer is as follows:

[0040] 100 parts by mass of heavy traffic asphalt

[0041] 28 parts by mass of softening oil

[0042] 12 parts by mass of tackifying filling oil

[0043] 12 parts by mass of SBS

[0044] 9 parts by mass of SBR

[0045] 5 parts by mass of SIS

[0046] 4 parts by mass of tackifying resin

[0047] 3 parts by mass of thixotropic agent

[0048] 8 parts by mass of filler No. 1

[0049] It is prepared from 9 parts by mass of filler No. 2.

[0050] Its coating layer composition is as follows:

[0051] 100 parts by mass of heavy traffic asphalt

[0052] 28 parts by mass of softening oil

[0053] 15 parts by mass of SBS

[0054] 6 parts by mass of SBR

[0055] 55 parts by mass of filler No. 1.

[0056] The upper isolation layer uses a polyethylene film material, and its lower surface is coated with anti-sticking silicone oil, with an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, which is formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration between 76 and a softening point of 52.3 °C. The softening oil is composed of naphthenic oil and aromatic oil in a proportional mixture, and its mass ratio is naphthenic oil: aromatic oil = 20:80, where the naphthenic oil has a saturated hydrocarbon content of 83%, a pour point of -16 °C, the aromatic oil has an aromatic content of 86%, and the pour point is -15 °C. The filling oil is rubber filling oil, with a viscosity of 3200 mPa·s and a saturated content of 38%. The SBS is a styrene-butadiene-styrene block copolymer with a linear structure and a molecular weight of 80,000; the SBR is granular styrene-butadiene rubber, which is prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer with a molecular weight of 140,000; the tackifying resin is terpene resin; the thixotropic agent is a mixture of hydrophobic fumed silica and flaky bentonite, with a ratio of 6:4. The filler No. 1 is 500-mesh heavy calcium carbonate, and the filler No. 2 is 6000-mesh nano calcium carbonate.

[0057] The preparation process of its wetting and bonding layer coating is as follows:

[0058] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and begin to heat up to 160 - 165 °C, keep warm and control the temperature within the range of 160 - 165 °C;

[0059] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 min;

[0060] In step 3, add a thixotropic agent and stir at high speed for 30 min to activate the thixotropic agent;

[0061] In step 4, add a tackifying resin and stir for 10 min to mix it evenly;

[0062] In step 5, add fillers, turn on the grinding system, and grind and stir for 60 minutes

[0063] In step 6, introduce the material into the production equipment for shaping.

[0064] The preparation process of its coating layer is as follows:

[0065] In step 1, preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, turn on the stirring and start heating up to 170 - 175 °C, keep warm and control the temperature within the range of 170 - 175 °C;

[0066] In step 2, add SBS and SBR in sequence and stir at high speed for 30 min;

[0067] In step 3, add fillers, turn on the grinding system, and grind and stir for 60 minutes

[0068] In step 4, introduce the material into the production equipment for shaping.

[0069] Its shaping process is as follows:

[0070] In step 1, unfold the carcass structure layer on the oiling table;

[0071] In step 2, after cooling the exported coating material to below 100 °C, coat it on the structure layer according to the designed thickness;

[0072] In step 3, cool the exported wet adhesive coating material to 70 - 80 °C and coat it on the coating layer according to the designed thickness;

[0073] In step 4, draw the coil for cooling. When the surface temperature of the coil drops to below 50 °C, coat the unfolded anti - sticking isolation layer on the coil, cool it, and wind it up to obtain the self - adhesive waterproof coil.

[0074] Example 2:

[0075] A self - adhesive modified asphalt waterproof coil, which is composed of an anti - sticking isolation layer from top to bottom, a 0.3 - mm - thick wet adhesive coating layer, a 0.9 - mm - thick coating layer, and a 0.1 - mm - thick carcass structure layer.

[0076] The composition of its wet adhesive coating layer is as follows:

[0077] 100 parts by mass of heavy traffic asphalt

[0078] 30 parts by mass of softening oil

[0079] 10 parts by mass of tackifying filling oil

[0080] 15 parts by mass of SBS

[0081] 10 parts by mass of SBR

[0082] 4 parts by mass of SIS

[0083] 5 parts by mass of tackifying resin

[0084] 2.5 parts by mass of thixotropic agent

[0085] 5 parts by mass of Filler No. 1

[0086] Prepared from 10 parts by mass of Filler No. 2

[0087] The composition of its coating layer is as follows:

[0088] 100 parts by mass of heavy traffic asphalt

[0089] 25 parts by mass of softening oil

[0090] 15 parts by mass of SBS

[0091] 6 parts by mass of SBR

[0092] 55 parts by mass of filler

[0093] The upper isolation layer uses a polyethylene film material, and its lower surface is coated with anti-sticking silicone oil, with an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration of 82 and a softening point of 49.2 °C. The softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, and their mass ratio is naphthenic oil: aromatic oil = 30:70, where the naphthenic oil has a saturated hydrocarbon content of 87%, a freezing point of -20 °C, the aromatic oil has an aromatic content of 92%, and a freezing point of -18 °C. The filling oil is rubber filling oil, with a viscosity of 5400 mPa·s and a saturated fraction content of 32%. The SBS is a styrene-butadiene-styrene block copolymer, with a linear structure and a molecular weight of 140,000; the SBR is granular styrene-butadiene rubber, prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer, with a molecular weight of 140,000; the tackifying resin is composed of phenolic resin, terpene resin, and rosin resin mixed in a ratio of 3:5:2; the thixotropic agent is flaky bentonite. The Filler No. 1 is 600-mesh talc powder, and the Filler No. 2 is a mixture of 6000-mesh nano-calcium carbonate and 1250-mesh kaolin. The mixing ratio is 1:1.

[0094] The preparation process of its wetting and bonding layer coating material is as follows:

[0095] Step 1: Preheat the reactor to above 130°C, add heavy traffic asphalt, softening oil, and tackifying filler oil, start stirring and begin heating up to 160 - 165°C, keep the temperature constant and control it within the range of 160 - 165°C;

[0096] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 min;

[0097] Step 3: Add the thixotropic agent and stir at high speed for 30 min to activate the thixotropic agent;

[0098] Step 4: Add the tackifying resin and stir for 10 min to mix it evenly;

[0099] Step 5: Add the filler, start the grinding system, and grind and stir for 60 minutes

[0100] Step 6: Import the material into the production equipment for shaping.

[0101] The preparation process of its coating layer is as follows:

[0102] Step 1: Preheat the reactor to above 130°C, add heavy traffic asphalt, softening oil, and tackifying filler oil, start stirring and begin heating up to 170 - 175°C, keep the temperature constant and control it within the range of 170 - 175°C;

[0103] Step 2: Add SBS and SBR in sequence and stir at high speed for 30 min;

[0104] Step 3: Add the filler, start the grinding system, and grind and stir for 60 minutes

[0105] Step 4: Import the material into the production equipment for shaping.

[0106] Its shaping process is as follows:

[0107] Step 1: Unroll the carcass structural layer on the oiling table;

[0108] Step 2: After cooling the exported coating material to below 100°C, coat it on the structural layer according to the designed thickness;

[0109] Step 3: Cool the exported wetting and tacky coating material to 70 - 80°C and coat it on the coating layer according to the designed thickness;

[0110] Step 4: Pull the coil for cooling. When the surface temperature of the coil drops to below 50°C, coat the unrolled anti-sticking isolation layer on the coil, cool it, and wind it up to obtain the self-adhesive waterproof coil.

[0111] Example 3:

[0112] A self-adhesive modified bitumen waterproofing membrane, which is composed of an anti-sticking isolation layer from top to bottom, a wetting adhesive coating layer with a thickness of 0.3 mm, a coating layer with a thickness of 1.2 mm, and a carcass structure layer with a thickness of 0.15 mm.

[0113] The composition of its wetting adhesive coating layer is as follows:

[0114] 100 parts by mass of heavy traffic bitumen

[0115] 25 parts by mass of softening oil

[0116] 15 parts by mass of tackifying filling oil

[0117] 10 parts by mass of SBS

[0118] 7 parts by mass of SBR

[0119] 6 parts by mass of SIS

[0120] 5 parts by mass of tackifying resin

[0121] 3 parts by mass of thixotropic agent

[0122] 10 parts by mass of filler No. 1

[0123] Prepared from 10 parts by mass of filler No. 2.

[0124] The composition of its coating layer is as follows:

[0125] 100 parts by mass of heavy traffic bitumen

[0126] 25 parts by mass of softening oil

[0127] 18 parts by mass of SBS

[0128] 8 parts by mass of SBR

[0129] 60 parts by mass of filler No. 1.

[0130] The upper isolation layer is made of polyethylene film material, and its lower surface is coated with anti-sticking silicone oil, with an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration between 80, and a softening point of 41.2 °C. The softening oil is aromatic oil, with an aromatic content of the aromatic oil ≥ 92%, and a pour point of -16 °C. The filling oil is rubber filling oil, with a viscosity of 5200 mPa·s and a saturation content of 38%. The SBS is a styrene-butadiene-styrene block copolymer, with a linear structure and a molecular weight of 140,000; the SBR is granular styrene-butadiene rubber, prepared by crushing SBR rubber, with more than 90% of the particle size being 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer, with a molecular weight of 110,000; the tackifying resin is C5 petroleum resin; the thixotropic agent is composed of polyamide wax and hydrophobic fumed silica, with a ratio of 1:1. The No. 1 filler is 400-mesh heavy calcium carbonate, and the No. 2 filler is 1250-mesh kaolin.

[0131] The preparation process of its wetting and bonding layer coating material is as follows:

[0132] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and begin to heat up to 160 - 165 °C, keep warm and control the temperature within the range of 160 - 165 °C;

[0133] Step 2: Add SBS, SBR, and SIS in sequence, and stir at high speed for 30 min;

[0134] Step 3: Add the thixotropic agent and stir at high speed for 30 min to activate the thixotropic agent;

[0135] Step 4: Add the tackifying resin and stir for 10 min to make it evenly mixed;

[0136] Step 5: Add the filler, start the grinding system, and grind and stir for 60 minutes

[0137] Step 6: Import the material into the production equipment for shaping.

[0138] The preparation process of its coating layer is as follows:

[0139] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and begin to heat up to 170 - 175 °C, keep warm and control the temperature within the range of 170 - 175 °C;

[0140] Step 2: Add SBS and SBR in sequence and stir at high speed for 30 min;

[0141] Step 3: Add the filler, start the grinding system, and grind and stir for 60 minutes

[0142] Step 4 imports the material into the production equipment for shaping.

[0143] The shaping process is as follows:

[0144] Step 1 unfolds the carcass structural layer on the oiling table;

[0145] Step 2 cools the exported coating material to below 100 °C and then coats it on the structural layer according to the designed thickness;

[0146] Step 3 cools the exported wetting adhesive coating material to 70 - 80 °C and coats it on the coating material layer according to the designed thickness;

[0147] Step 4 pulls the coil for cooling. When the surface temperature of the coil drops below 50 °C, coats the unfolded anti - sticking isolation layer on the coil, cools it, and winds it up to obtain the self - adhesive waterproof coil.

[0148] Example 4:

[0149] A self - adhesive modified asphalt waterproof coil, which is composed of an anti - sticking isolation layer from top to bottom, a 0.3 - mm - thick wetting adhesive coating material layer, a 0.8 - mm - thick coating material layer, and a 0.2 - mm - thick carcass structural layer.

[0150] The composition of its wetting adhesive coating material layer is as follows:

[0151] Heavy traffic asphalt: 100 parts by mass

[0152] Softening oil: 25 parts by mass

[0153] Viscosity - increasing filling oil: 12 parts by mass

[0154] SBS: 10 parts by mass

[0155] SBR: 6 parts by mass

[0156] SIS: 4 parts by mass

[0157] Viscosity - increasing resin: 3.5 parts by mass

[0158] Thixotropic agent: 2 parts by mass

[0159] Filler No. 1: 6 parts by mass

[0160] Filler No. 2: 10 parts by mass prepared.

[0161] The composition of its coating material layer is as follows:

[0162] Heavy traffic asphalt: 100 parts by mass

[0163] Softening oil: 20 parts by mass

[0164] SBS: 15 parts by mass

[0165] SBR6 mass fraction

[0166] 50 parts by mass of filler No. 1.

[0167] The upper isolation layer is made of polypropylene film material, with anti-sticking silicone oil coated on its lower surface and an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration between 76 and a softening point of 42.5 °C. The softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, and their mass ratio is naphthenic oil: aromatic oil = 40:60. Among them, the naphthenic oil has a saturated hydrocarbon content of 84%, a freezing point of -18 °C, the aromatic oil has an aromatic content of 88%, and a freezing point of -15 °C. The filling oil is rubber filling oil, with a viscosity of 4200 mPa·s and a saturation content of 36%. The SBS is a styrene-butadiene-styrene block copolymer with a linear structure and an average molecular weight of 120,000; the SBR is granular styrene-butadiene rubber, prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer with a molecular weight of 120,000; the tackifying resin is composed of terpene resin and rosin mixed in a ratio of 1:1; the thixotropic agent is polyamide wax. The filler No. 1 is 400-mesh talc powder, and the filler No. 2 is composed of 3000-nm calcium carbonate and 3000-mesh kaolin, and the ratio of calcium carbonate to kaolin is 2:1

[0168] The preparation process of its wetting and bonding layer coating material is as follows:

[0169] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 160 - 165 °C, keep warm and control the temperature within the range of 160 - 165 °C;

[0170] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 min;

[0171] Step 3: Add the thixotropic agent and stir at high speed for 30 min to activate the thixotropic agent;

[0172] Step 4: Add the tackifying resin and stir for 10 min to mix it evenly;

[0173] Step 5: Add the filler, start the grinding system, and grind and stir for 60 minutes

[0174] Step 6: Import the material into the production equipment for forming.

[0175] The preparation process of its coating layer is as follows:

[0176] Step 1: Preheat the reaction kettle to above 130°C, add heavy traffic asphalt, softening oil, and tackifying filler oil, start stirring, and begin heating up to 170 - 175°C. Keep the temperature within the range of 170 - 175°C and hold for a certain time.

[0177] Step 2: Add SBS and SBR in sequence and stir at high speed for 30 min.

[0178] Step 3: Add the filler, start the grinding system, and grind and stir for 60 minutes.

[0179] Step 4: Feed the material into the production equipment for shaping.

[0180] The shaping process is as follows:

[0181] Step 1: Unroll the carcass structure layer on the oiling table.

[0182] Step 2: After cooling the exported coating material to below 100°C, coat it on the structure layer according to the designed thickness.

[0183] Step 3: Cool the exported wetting tacky coating material to 70 - 80°C and coat it on the coating material layer according to the designed thickness.

[0184] Step 4: Pull the coil for cooling. When the surface temperature of the coil drops to below 50°C, coat the unrolled anti - sticking isolation layer on the coil, cool it, and wind it up to obtain the self - adhesive waterproof coil.

[0185] Comparative Example 1:

[0186] A self - adhesive modified asphalt waterproof coil, which is composed of an anti - sticking isolation layer, a 1.2 - mm - thick coating material layer, and a 0.2 - mm - thick carcass structure layer from top to bottom.

[0187] The composition of its coating material layer is as follows:

[0188] Heavy traffic asphalt: 100 parts by mass

[0189] Softening oil: 28 parts by mass

[0190] SBS: 15 parts by mass

[0191] SBR: 6 parts by mass

[0192] Filler: 55 parts by mass.

[0193] The upper isolation layer is made of polypropylene film material, with an anti-sticking silicone oil coated on its lower surface and an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration between 76 and a softening point of 52.3 °C. The softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, with a mass ratio of naphthenic oil: aromatic oil = 20:80. Among them, the naphthenic oil has a saturated hydrocarbon content of 83%, a pour point of -16 °C, the aromatic oil has an aromatic content of 86%, and the pour point is -15 °C. The SBS is a styrene-butadiene-styrene block copolymer with a linear structure and a molecular weight of 8; the SBR is granular styrene-butadiene rubber, prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the No. 1 filler is 500-mesh heavy calcium carbonate, and the No. 2 filler is 6000-mesh nano calcium carbonate.

[0194] The preparation process of its coating layer is as follows:

[0195] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 170 - 175 °C, keep warm and control the temperature within the range of 170 - 175 °C;

[0196] Step 2: Add SBS and SBR in sequence and stir at high speed for 30 min;

[0197] Step 3: Add the filler, start the grinding system, grind and stir for 60 minutes

[0198] Step 4: Import the material into the production equipment for shaping.

[0199] Its shaping process is as follows:

[0200] Step 1: Unroll the carcass structural layer on the oiling table;

[0201] Step 2: After cooling the exported coating to below 100 °C, coat it on the structural layer according to the designed thickness;

[0202] Step 3: Pull the coil for cooling. When the surface temperature of the coil drops to below 50 °C, coat the unrolled anti-sticking isolation layer on the coil, cool it, and wind it up to obtain the self-adhesive waterproof coil.

[0203] Comparative Example 2:

[0204] A self-adhesive modified asphalt waterproof coil, which is composed of an anti-sticking isolation layer, a 1.2-mm-thick wetting and bonding coating layer, and a 0.2-mm-thick carcass structural layer from top to bottom.

[0205] The composition of its wetting and bonding coating layer is as follows:

[0206] 100 parts by mass of heavy traffic asphalt

[0207] 28 parts by mass of softening oil

[0208] 12 parts by mass of tackifying filling oil

[0209] 12 parts by mass of SBS

[0210] 9 parts by mass of SBR

[0211] 5 parts by mass of SIS

[0212] 4 parts by mass of tackifying resin

[0213] 3 parts by mass of thixotropic agent

[0214] 8 parts by mass of No. 1 filler

[0215] Prepared from 9 parts by mass of No. 2 filler

[0216] The upper isolation layer is made of polyethylene film material, with anti-sticking silicone oil coated on its lower surface and an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration between 76 and a softening point of 52.3 °C. The softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, and the mass ratio is naphthenic oil: aromatic oil = 20:80, where the saturated hydrocarbon content of naphthenic oil is 83%, the pour point is -16 °C, the aromatic content of aromatic oil is 86%, and the pour point is -15 °C. The filling oil is rubber filling oil, with a viscosity of 3200 mPa·s and a saturated content of 38%. The SBS is a styrene-butadiene-styrene block copolymer with a linear structure and a molecular weight of 80,000; the SBR is granular styrene-butadiene rubber, prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer with a molecular weight of 140,000; the tackifying resin is terpene resin; the thixotropic agent is composed of hydrophobic fumed silica and flaky bentonite, and the ratio is 6:4. The No. 1 filler is 500-mesh heavy calcium carbonate, and the No. 2 filler is 6000-mesh nano calcium carbonate.

[0217] The preparation process of its wetting and bonding layer coating material is as follows:

[0218] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 160 - 165 °C, keep warm and control the temperature within the range of 160 - 165 °C;

[0219] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 min;

[0220] In Step 3, a thixotropic agent is added and stirred at high speed for 30 minutes to activate the thixotropic agent;

[0221] In Step 4, a tackifying resin is added and stirred for 10 minutes to mix it evenly;

[0222] In Step 5, a filler is added, the grinding system is started, and it is ground and stirred for 60 minutes

[0223] In Step 6, the material is introduced into the production equipment for molding.

[0224] Its molding process is as follows:

[0225] In Step 1, the carcass structural layer is unfolded on the oiling table;

[0226] In Step 2, the exported wetting adhesive coating material is cooled to 70 - 80 °C and coated on the coating material layer according to the designed thickness;

[0227] In Step 3, the coil is pulled to cool down. When the surface temperature of the coil drops below 50 °C, the unfolded anti - sticking isolation layer is coated on the coil, cooled, and wound up to obtain the self - adhesive waterproof coil.

[0228] Comparative Example 3:

[0229] A self - adhesive modified asphalt waterproof coil, which is composed of an anti - sticking isolation layer from top to bottom, a 0.3 - mm - thick wetting adhesive coating material layer, a 0.9 - mm - thick coating material layer, and a 0.1 - mm - thick carcass structural layer.

[0230] The composition of its wetting adhesive coating material layer is as follows:

[0231] 100 parts by mass of heavy traffic asphalt

[0232] 30 parts by mass of softening oil

[0233] 10 parts by mass of tackifying filling oil

[0234] 5 parts by mass of SBS

[0235] 4 parts by mass of SBR

[0236] 4 parts by mass of SIS

[0237] 5 parts by mass of tackifying resin

[0238] 5 parts by mass of No. 1 filler

[0239] Prepared from 10 parts by mass of No. 2 filler.

[0240] The composition of its coating material layer is as follows:

[0241] 100 parts by mass of heavy traffic asphalt

[0242] 25 parts by mass of softening oil

[0243] 15 parts by mass of SBS

[0244] 6 parts by mass of SBR

[0245] 55 parts by mass of filler.

[0246] The upper isolation layer is made of polyethylene film material, with an anti-sticking silicone oil coated on its lower surface and an overall thickness of 0.01 mm. The carcass structural layer is a polyethylene cross-laminated material, formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration of 82 and a softening point of 49.2 °C. The softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, and their mass ratio is naphthenic oil: aromatic oil = 30:70, where the saturated hydrocarbon content of naphthenic oil is 87%, the pour point is -20 °C, the aromatic content of aromatic oil is 92%, and the pour point is -18 °C. The filling oil is rubber filling oil, with a viscosity of 5400 mPa·s and a saturation content of 32%. The SBS is a styrene-butadiene-styrene block copolymer, with a linear structure and a molecular weight of 140,000; the SBR is granular styrene-butadiene rubber, prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer, with a molecular weight of 140,000; the tackifying resin is composed of phenolic resin, terpene resin, and rosin resin mixed in a ratio of 3:5:2. The No. 1 filler is 600-mesh talcum powder, and the No. 2 filler is a mixture of 6000-mesh nano-calcium carbonate and 1250-mesh kaolin.

[0247] Mixing ratio 1:1.

[0248] The preparation process of its wetting and bonding layer coating material is as follows:

[0249] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 160 - 165 °C, keep warm and control the temperature within the range of 160 - 165 °C;

[0250] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 min;

[0251] Step 3: Add the tackifying resin and stir for 10 min to make it evenly mixed;

[0252] Step 4: Add the filler, start the grinding system, grind and stir for 60 minutes

[0253] Step 5: Import the material into the production equipment for shaping.

[0254] The preparation process of its coating layer is as follows:

[0255] Step 1: Preheat the reaction kettle to above 130°C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 170 - 175°C, keep the temperature within the range of 170 - 175°C while insulating.

[0256] Step 2: Add SBS and SBR in sequence and stir at high speed for 30 minutes.

[0257] Step 3: Add the filler, start the grinding system, and grind and stir for 60 minutes.

[0258] Step 4: Introduce the material into the production equipment for forming.

[0259] Its forming process is as follows:

[0260] Step 1: Unroll the carcass structure layer on the oiling table.

[0261] Step 2: After cooling the exported coating material to below 100°C, coat it on the structure layer according to the designed thickness.

[0262] Step 3: Cool the exported wetting adhesive coating material to 70 - 80°C and coat it on the coating material layer according to the designed thickness.

[0263] Step 4: Pull the coil for cooling. When the surface temperature of the coil drops to below 50°C, coat the unrolled anti-sticking isolation layer on the coil, cool it, and wind it up to obtain the self-adhesive waterproof coil.

[0264] Comparative Example 4:

[0265] A self-adhesive modified asphalt waterproof coil, which is composed of an anti-sticking isolation layer from top to bottom, a 0.3 mm thick wetting adhesive coating material layer, a 0.9 mm thick coating material layer, and a 0.1 mm thick carcass structure layer.

[0266] The composition of its wetting adhesive coating material layer is as follows:

[0267] 100 parts by mass of heavy traffic asphalt

[0268] 30 parts by mass of softening oil

[0269] 10 parts by mass of tackifying filling oil

[0270] 15 parts by mass of SBS

[0271] 10 parts by mass of SBR

[0272] 4 parts by mass of SIS

[0273] 5 parts by mass of tackifying resin

[0274] 2.5 parts by mass of thixotropic agent

[0275] 5 parts by mass of No. 1 filler

[0276] It is prepared from 10 parts by mass of packing material No. 2.

[0277] Its coating layer is composed of the following components:

[0278] Heavy traffic asphalt: 100 parts by mass

[0279] Softening oil: 35 parts by mass

[0280] SBS: 15 parts by mass

[0281] SBR: 6 parts by mass

[0282] Filler: 20 parts by mass.

[0283] The upper isolation layer uses polyethylene film material, and its lower surface is coated with anti-sticking silicone oil, with an overall thickness of 0.01 mm. The carcass structural layer is made of polyethylene cross-laminated material, which is formed by double-layer 90° cross-pressing. The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration of 82 and a softening point of 49.2 °C. The softening oil is composed of naphthenic oil and aromatic oil mixed in proportion, and the mass ratio is naphthenic oil: aromatic oil = 30:70, where the saturated hydrocarbon content of naphthenic oil is 87%, the freezing point is -20 °C, the aromatic content of aromatic oil is 92%, and the freezing point is -18 °C. The filling oil is rubber filling oil, with a viscosity of 5400 mPa·s and a saturated content of 32%. The SBS is a styrene-butadiene-styrene block copolymer with a linear structure and a molecular weight of 140,000; the SBR is granular styrene-butadiene rubber, which is prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; the SIS is a styrene-isoprene-styrene block copolymer with a molecular weight of 140,000; the tackifying resin is composed of phenolic resin, terpene resin, and rosin resin mixed in a ratio of 3:5:2; the thixotropic agent is flaky bentonite. The No. 1 filler is 600-mesh talc powder, and the No. 2 filler is a mixture of 6000-mesh nano calcium carbonate and 1250-mesh kaolin. The mixing ratio is 1:1.

[0284] The preparation process of its wetting and bonding layer coating material is as follows:

[0285] Step 1: Preheat the reaction kettle to above 130 °C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 160 - 165 °C, keep warm and control the temperature within the range of 160 - 165 °C;

[0286] Step 2: Add SBS, SBR, and SIS in sequence and stir at high speed for 30 min;

[0287] Step 3: Add the thixotropic agent and stir at high speed for 30 min to activate the thixotropic agent;

[0288] In Step 4, tackifying resin is added and stirred for 10 min to make it evenly mixed.

[0289] In Step 5, filler is added, the grinding system is turned on, and grinding and stirring are carried out for 60 minutes.

[0290] In Step 6, the material is introduced into the production equipment for forming.

[0291] The preparation process of its coating layer is as follows:

[0292] In Step 1, the reaction kettle is preheated to above 130 °C, heavy traffic asphalt, softening oil, and tackifying filling oil are added, stirring is started and the temperature is raised to 170 - 175 °C, and the temperature is kept within the range of 170 - 175 °C.

[0293] In Step 2, SBS and SBR are added in sequence and stirred at high speed for 30 min.

[0294] In Step 3, filler is added, the grinding system is turned on, and grinding and stirring are carried out for 60 minutes.

[0295] In Step 4, the material is introduced into the production equipment for forming.

[0296] Its forming process is as follows:

[0297] In Step 1, the carcass structural layer is unfolded on the oiling table.

[0298] In Step 2, after the exported coating material is cooled to below 100 °C, it is coated on the structural layer according to the designed thickness.

[0299] In Step 3, the exported wetting and tacky coating material is cooled to 70 - 80 °C and coated on the coating layer according to the designed thickness.

[0300] In Step 4, the coiled material is pulled for cooling, and when the surface temperature of the coiled material drops to below 50 °C, the unfolded anti-sticking isolation layer is coated on the coiled material, cooled, and wound up to obtain the self-adhesive waterproof coiled material.

[0301] For Comparative Examples 5 and 6, commercially available self-adhesive modified asphalt waterproof coiled materials

[0302] The following table shows the performance comparison results of the self-adhesive modified asphalt coiled materials of Examples 1 - 4 and Comparative Examples 1 - 6:

[0303]

[0304]

[0305] From the comparison results of the examples and comparative examples, it can be seen that for the self-adhesive modified asphalt waterproof coiled materials designed according to Examples 1-4, their low-temperature resistance and bonding peel strength have been significantly improved, and the reduction in the bonding effect at low temperatures is not obvious. The retention rate of the bonding peel strength from 3 months to 12 months, which reflects the long-term outdoor aging of the material, remains at a relatively high level. The bonding peel strength hardly decays at 3 months, and the decay is controlled within 10% at 12 months. For the harsh low-temperature outdoor environment and long-term outdoor exposure environment, the improvement of the material bonding effect is obvious. Compared with Example 1, Comparative Example 1 removed the wetting bonding coating layer of the coiled material and replaced it with a conventional coating layer. The initial adhesion of the material (peeling strength from concrete under normal conditions) and the bonding peel strength at low temperatures decreased significantly, and the retention rate after outdoor aging was also low. Compared with Example 1, Comparative Example 2 removed the coating layer in the present invention and replaced it entirely with a wetting bonding coating layer. The low-temperature resistance of the material decreased significantly, and the initial adhesion, low-temperature bonding effect, and holding adhesion all decreased significantly. Compared with Example 2, in Comparative Examples 3 and 4, the formulation ratio of the wetting bonding layer material in the former did not meet the design requirements of this patent, and no thixotropic agent was added. In the latter, the ratio of the coating layer did not meet the design requirements of this patent. Compared with Example 2, the initial adhesion of the material decreased to a certain extent, and the holding adhesion decreased significantly. There is a problem that the bonding and peeling performance decreases significantly after long-term outdoor aging. Comparative Examples 5 and 6 are commercially available self-adhesive modified asphalt waterproof coiled materials of the same specifications. Compared with the self-adhesive waterproof coiled materials designed by this patent in Examples 1-4, there are significant differences in their low-temperature resistance, initial adhesion, low-temperature bonding performance, and continuous bonding performance.

[0306] Subsequently, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A self-adhesive modified bitumen waterproofing membrane, characterized in that: The waterproof coiled material consists of a non-stick release layer from top to bottom, a wetting adhesive coating layer with a thickness of 0.2 - 0.3 mm, a coating layer with a thickness of 0.7 - 1.3 mm, and a carcass structure layer with a thickness of 0.1 - 0.2 mm; The wetting adhesive coating layer is prepared from 100 parts by mass of heavy traffic asphalt, 20 - 30 parts by mass of softening oil, 10 - 15 parts by mass of tackifying filling oil, 8 - 15 parts by mass of SBS, 5 - 10 parts by mass of SBR, 3 - 6 parts by mass of SIS, 3 - 5 parts by mass of tackifying resin, 2 - 3 parts by mass of thixotropic agent, 5 - 10 parts by mass of No. 1 filler, and 5 - 10 parts by mass of No. 2 filler; The coating layer is prepared from 100 parts by mass of heavy traffic asphalt, 20 - 30 parts by mass of softening oil, 10 - 20 parts by mass of SBS, 5 - 8 parts by mass of SBR, and 40 - 60 parts by mass of No. 1 filler; The No. 1 filler is composed of one or a mixture of two of 400 - 600 mesh talcum powder and 400 - 600 mesh heavy calcium carbonate, and the No. 2 filler is composed of one or a mixture of two of 3000 - 6000 mesh nano calcium carbonate and 1250 - 3000 mesh kaolin.

2. The self-adhesive modified asphalt waterproof coiled material according to claim 1, characterized in that, The upper release layer is made of polyethylene / polypropylene film material, and its lower surface is coated with non-stick silicone oil, with an overall thickness of 0.01 mm.

3. The self-adhesive modified bitumen waterproof coiled material according to claim 1, characterized in that, The carcass structure layer is a polyethylene cross-laminated film material, which is formed by double-layer 90° cross-pressing.

4. The self-adhesive modified bitumen waterproofing membrane according to claim 1, characterized in that, The heavy traffic asphalt is 70# heavy traffic asphalt, with an asphalt penetration between 70 - 85 and a softening point of 40 - 55°C.

5. The self-adhesive modified asphalt waterproof coiled material according to claim 1, characterized in that: The SBS is a styrene-butadiene-styrene block copolymer, with a linear structure and a molecular weight of 8 - 16w; The SBR is granular styrene-butadiene rubber, which is prepared by crushing SBR rubber, and more than 90% of the particle size is 0.2 - 0.3 mm; The SIS is a styrene-isoprene-styrene block copolymer, with a molecular weight of 10 - 15w; The tackifying resin is composed of one or a mixture of several of phenolic resin system, terpene resin, rosin, and C5 petroleum resin; The thixotropic agent is composed of one or a mixture of several of polyamide wax, hydrophobic fumed silica, and flaky bentonite.

6. The preparation process of the wetting adhesive layer coating material of the self-adhesive modified asphalt waterproof coiled material according to claim 1 is as follows: Step 1: Preheat the reaction kettle to above 130°C, add heavy traffic asphalt, softening oil, and tackifying filling oil, start stirring and heat up to 160 - 165°C, keep warm and control the temperature within the range of 160 - 165°C; Step 2: Add SBS, SBR, and SIS in sequence, and stir at high speed for 30 min; Step 3: Add the thixotropic agent and stir at high speed for 30 min to activate the thixotropic agent; Step 4: Add the tackifying resin and stir for 10 min to make it evenly mixed; Step 5: Add the filler, start the grinding system, and grind and stir for 60 minutes Step 6: Introduce the material into the production equipment for forming.

7. The forming process of the self-adhesive modified asphalt waterproof coiled material according to any one of claims 1 - 6 is as follows: Step 1: Unroll the carcass structure layer on the oiling table; Step 2: After cooling the exported coating material to below 100°C, coat it on the structural layer according to the designed thickness; Step 3: Cool the exported wet adhesive coating material to 70 - 80°C and coat it on the coating material layer according to the designed thickness; Step 4: Pull the coil for cooling. When the surface temperature of the coil drops to below 50°C, coat the unfolded anti-sticking isolation layer on the coil, cool it, and wind it up to obtain the self-adhesive waterproof coil.

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