A self-adhesive asphalt polyester waterproofing membrane and its preparation method

Abstract

The present invention relates to the technical field of waterproofing rolls, and proposes a self-adhesive asphalt polyester tire waterproofing roll and a preparation method thereof, comprising a polyester tire base, an isolation layer bonded to the upper surface of the polyester tire base, and an anti-sticking layer bonded to the lower surface of the polyester tire base; the polyester tire base is bonded to the isolation layer and the anti-sticking layer through a modified asphalt layer; the modified asphalt layer comprises the following raw materials in parts by weight: 80-90 parts of asphalt, 20-25 parts of cyclohexane oil, 10-15 parts of SBS, 8-12 parts of tackifier, 20-25 parts of calcium carbonate, 6-8 parts of auxiliary agent, 1-3 parts of stabilizer, and 0.4-0.8 parts of antioxidant; the auxiliary agent is composed of 2-(4-aminophenoxy)benzenecarboxylic acid and / or silane coupling agent. Through the above technical scheme, the problem of poor mechanical properties of the self-adhesive asphalt polyester tire waterproofing roll in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof roll materials, and in particular to a self-adhesive asphalt polyester waterproof roll material and a preparation method thereof. Background Art

[0002] As the scale and number of construction projects in my country continue to increase, the types of buildings on the market continue to increase. In construction projects, roof waterproofing construction technology is a very important process content and an important manifestation of the quality of building use. In the construction market, roof waterproofing construction technology is diverse, among which roll waterproofing is the most common.

[0003] There are many types of waterproof membranes. According to different materials, waterproof membranes can be divided into asphalt waterproof membranes, modified asphalt waterproof membranes, polymer waterproof membranes, self-adhesive waterproof membranes, etc. Among them, compared with traditional asphalt waterproof membranes, modified asphalt waterproof membranes have a wider temperature range of use, and the waterproof membranes made are smooth and soft. However, the mechanical properties of modified asphalt waterproof membranes cannot meet the needs of use well. They are easily damaged during construction or use, which not only reduces the use effect, but also leads to a decrease in service life. Summary of the invention

[0004] The invention provides a self-adhesive asphalt polyester waterproofing membrane and a preparation method thereof, which solves the problem of poor mechanical properties of the self-adhesive asphalt polyester waterproofing membrane in the related art.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention provides a self-adhesive asphalt polyester waterproofing membrane, comprising a polyester base layer, an isolation layer bonded to the upper surface of the polyester base layer, and an anti-sticking layer on the lower surface of the polyester base layer; the polyester base layer is bonded to the isolation layer and the anti-sticking layer through a modified asphalt layer; the modified asphalt layer comprises the following raw materials in parts by weight: 80-90 parts of asphalt, 20-25 parts of cyclohexane oil, 10-15 parts of SBS, 8-12 parts of tackifier, 20-25 parts of calcium carbonate, 6-8 parts of auxiliary agent, 1-3 parts of stabilizer, and 0.4-0.8 parts of antioxidant; the auxiliary agent is composed of 2-(4-aminophenoxy)benzenecarboxylic acid and / or a silane coupling agent.

[0007] As a further technical solution, the mass ratio of the 2-(4-aminophenoxy)benzenecarboxylic acid to the silane coupling agent is 1:1-5.

[0008] The present invention finds that when the mass ratio of 2-(4-aminophenoxy)benzenecarboxylic acid to the silane coupling agent is limited to a range of 1:1-5, the tensile force, elongation at maximum tensile force and peel strength of the waterproof coiled material can be further improved.

[0009] As a further technical solution, the mass ratio of the 2-(4-aminophenoxy)benzenecarboxylic acid to the silane coupling agent is 1:2.

[0010] As a further technical solution, the cyclopentane oil includes one of KN4010 cyclopentane oil, KN4006 cyclopentane oil and KN4016 cyclopentane oil.

[0011] As a further technical solution, the 40°C kinematic viscosity of the KN4010 naphthenic oil is 156.7 mm 2 / s, KN4006 naphthenic oil has a kinematic viscosity of 53.7 mm at 40°C 2 / s, KN4016 naphthenic oil has a kinematic viscosity of 318 mm at 40°C 2 / s.

[0012] As a further technical solution, the cyclohexane oil consists of KN4010 cyclohexane oil and KN4016 cyclohexane oil.

[0013] As a further technical solution, the mass ratio of the KN4010 cyclohexane oil to the KN4016 cyclohexane oil is 1~4:1.

[0014] The addition of cyclopentane oil in the present invention can significantly reduce the modulus of SBS modified asphalt, but the polarity of asphalt is very small, and cyclopentane oil has a high polarity due to its saturated cyclic carbon chain structure. Therefore, the compatibility of asphalt and cyclopentane oil in the modified asphalt material is poor. The inventors found that when the cyclopentane oil is composed of KN4010 cyclopentane oil and KN4016 cyclopentane oil, and the mass ratio of KN4010 cyclopentane oil to KN4016 cyclopentane oil is 1-4:1, not only the processing performance is improved, but also the mechanical properties of the prepared waterproof membrane are better.

[0015] As a further technical solution, the mass ratio of the KN4010 cyclohexane oil to the KN4016 cyclohexane oil is 3:1.

[0016] When the mass ratio of KN4010 cyclohexane oil to KN4016 cyclohexane oil is 3:1, the mechanical properties of the prepared waterproof membrane are the best.

[0017] As a further technical solution, the isolation layer is one of a PE film, a PVC film and a PET film.

[0018] As a further technical solution, the polyester tire base layer is polyester felt.

[0019] As a further technical solution, the tackifier includes one or more of phenolic resin, epoxy resin and terpene resin.

[0020] As a further technical solution, the silane coupling agent includes one or more of silane coupling agent KH-570, silane coupling agent KH-550 and silane coupling agent KH-792.

[0021] As a further technical solution, the particle size of the calcium carbonate is 800-1250 meshes.

[0022] As a further technical solution, the thickness of the self-adhesive asphalt polyester waterproof membrane is 3~4mm.

[0023] As a further technical solution, the stabilizer includes one or more of polyvinyl alcohol, ethylenediaminetetraacetic acid and sodium tripolyphosphate.

[0024] As a further technical solution, the antioxidant includes one or more of antioxidant BHA, antioxidant BHT, and antioxidant 1010.

[0025] As a further technical solution, the asphalt includes one or both of No. 70 asphalt and No. 90 asphalt.

[0026] The present invention also provides a method for preparing a self-adhesive asphalt polyester waterproofing membrane, comprising the following steps:

[0027] S1. Weigh the modified asphalt layer raw material for standby use;

[0028] S2, mixing asphalt, naphthenic oil, calcium carbonate and additives uniformly to obtain a mixture;

[0029] S3, adding the remaining other components to the mixture, mixing evenly, to obtain a modified asphalt layer material;

[0030] S4, after impregnating the polyester tire base with the modified asphalt layer material, extruding and coating the modified asphalt layer material on the upper and lower surfaces of the polyester tire base respectively to form an upper modified asphalt layer and a lower modified asphalt layer;

[0031] S5. Cover the surface of the lower modified asphalt layer with an isolation layer, and cover the surface of the upper modified asphalt layer with an anti-sticking layer, cool and roll up to obtain a self-adhesive asphalt polyester waterproof membrane.

[0032] As a further technical solution, the asphalt is preheated to 160°C before being added.

[0033] As a further technical solution, the mixing temperature in S1 and S2 is 185°C.

[0034] As a further technical solution, the thickness of the polyester tire base layer is 1.5 mm.

[0035] As a further technical solution, the thickness of the isolation layer is 0.03~0.04mm.

[0036] As a further technical solution, the anti-sticking layer is quartz sand.

[0037] As a further technical solution, the thickness of the anti-sticking layer is 0.2 mm.

[0038] The working principle and beneficial effects of the present invention are:

[0039] In the present invention, the upper and lower surfaces of the polyester base layer are respectively provided with modified asphalt layers. The addition of calcium carbonate in the modified asphalt layer can improve the water resistance and heat resistance of the waterproof coiled material. Calcium carbonate is cheap, easy to obtain, and has low cost. However, the addition of calcium carbonate cannot play its role well. The addition of an auxiliary agent composed of 2-(4-aminophenoxy)benzenecarboxylic acid and a silane coupling agent can not only make the waterproof coiled material have higher aging resistance, but also further improve the peel strength of the waterproof coiled material. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the following examples and comparative examples:

[0042] No. 90 asphalt, Hebei Dezhishan Petrochemical Co., Ltd.;

[0043] Naphthenic oil, model KN4010, Guangzhou Haosheng Chemical Co., Ltd.;

[0044] SBS, product number F875, Sinopec Maoming;

[0045] Terpene resin, model t-100, Shanghai Sanlian Industrial Co., Ltd.;

[0046] KN4010 naphthenic oil, kinematic viscosity at 40℃ is 156.7mm 2 / s; KN4006 naphthenic oil, kinematic viscosity at 40℃ is 53.7mm 2 / s; KN4016 naphthenic oil, kinematic viscosity at 40℃ is 318mm 2 / s, Shenzhen Zhongruntong Chemical Co., Ltd.

[0047] Example 1

[0048] A method for preparing a self-adhesive asphalt polyester waterproofing membrane comprises the following steps:

[0049] S1. After heating 80 parts of No. 90 asphalt to 160°C, mix them evenly with 10 parts of KN4010 naphthenic oil, 10 parts of KN4016 naphthenic oil, 15 parts of calcium carbonate (800 mesh), and 6 parts of silane coupling agent KH-570 at 185°C to obtain a mixture;

[0050] S2, adding 10 parts of SBS, 8 parts of terpene resin, 1 part of sodium tripolyphosphate and 0.4 parts of antioxidant BHA to the mixture and continuing to mix evenly at 185° C. to obtain a modified asphalt layer material;

[0051] S3, impregnating the 1.5 mm thick polyester felt with the modified asphalt layer material, extruding, and applying the modified asphalt layer material to the upper and lower surfaces of the polyester tire base layer respectively to form an upper modified asphalt layer and a lower modified asphalt layer;

[0052] S4. The surface of the lower modified asphalt layer is covered with a 0.03 mm thick PE film as an isolation layer, and the surface of the upper modified asphalt layer is covered with a 0.2 mm thick quartz sand as an anti-sticking layer. The layers are cooled and rolled up to obtain a 3 mm thick self-adhesive asphalt polyester waterproof membrane.

[0053] Example 2

[0054] A method for preparing a self-adhesive asphalt polyester waterproofing membrane comprises the following steps:

[0055] S1. After heating 85 parts of No. 90 asphalt to 160°C, mix them evenly with 11 parts of KN4010 naphthenic oil, 11 parts of KN4016 naphthenic oil, 17 parts of calcium carbonate (800 mesh), and 7 parts of silane coupling agent KH-550 at 185°C to obtain a mixture;

[0056] S2, adding 12 parts of SBS, 10 parts of terpene resin, 2 parts of sodium tripolyphosphate and 0.6 parts of antioxidant 1010 to the mixture and continuing to mix evenly at 185° C. to obtain a modified asphalt layer material;

[0057] S3, impregnating the 1.5 mm thick polyester felt with the modified asphalt layer material, extruding, and applying the modified asphalt layer material to the upper and lower surfaces of the polyester tire base layer respectively to form an upper modified asphalt layer and a lower modified asphalt layer;

[0058] S4. The surface of the lower modified asphalt layer is covered with a 0.04 mm thick PE film as an isolation layer, and the surface of the upper modified asphalt layer is covered with a 0.2 mm thick quartz sand as an anti-sticking layer. The layers are cooled and rolled up to obtain a 3.1 mm thick self-adhesive asphalt polyester waterproof membrane.

[0059] Example 3

[0060] A method for preparing a self-adhesive asphalt polyester waterproofing membrane comprises the following steps:

[0061] S1. After heating 90 parts of No. 90 asphalt to 160°C, mix them evenly with 12.5 parts of KN4010 naphthenic oil, 12.5 parts of KN4016 naphthenic oil, 20 parts of calcium carbonate (1250 mesh), and 8 parts of silane coupling agent KH-792 at 185°C to obtain a mixture;

[0062] S2, adding 15 parts of SBS, 12 parts of terpene resin, 3 parts of sodium tripolyphosphate and 0.8 parts of antioxidant BHT to the mixture and continuing to mix evenly at 185° C. to obtain a modified asphalt layer material;

[0063] S3, impregnating the 1.5 mm thick polyester felt with the modified asphalt layer material, extruding, and applying the modified asphalt layer material to the upper and lower surfaces of the polyester tire base layer respectively to form an upper modified asphalt layer and a lower modified asphalt layer;

[0064] S4. The surface of the lower modified asphalt layer is covered with a 0.03 mm thick PE film as an isolation layer, and the surface of the upper modified asphalt layer is covered with a 0.2 mm thick quartz sand as an anti-sticking layer. The layers are cooled and rolled up to obtain a 3 mm thick self-adhesive asphalt polyester waterproof membrane.

[0065] Example 4

[0066] The difference between this embodiment and embodiment 1 is that the silane coupling agent KH-570 is replaced by an equal amount of 2-(4-aminophenoxy)benzenecarboxylic acid.

[0067] Example 5

[0068] The difference between this embodiment and embodiment 1 is that 6 parts of silane coupling agent KH-570 are replaced by 4 parts of 2-(4-aminophenoxy)benzenecarboxylic acid and 2 parts of silane coupling agent KH-570.

[0069] Example 6

[0070] The difference between this embodiment and embodiment 1 is that 6 parts of silane coupling agent KH-570 are replaced by 0.5 parts of 2-(4-aminophenoxy)benzenecarboxylic acid and 5.5 parts of silane coupling agent KH-570.

[0071] Example 7

[0072] The difference between this embodiment and embodiment 1 is that 6 parts of silane coupling agent KH-570 are replaced by 3 parts of 2-(4-aminophenoxy)benzenecarboxylic acid and 3 parts of silane coupling agent KH-570.

[0073] Example 8

[0074] The difference between this embodiment and embodiment 1 is that 6 parts of silane coupling agent KH-570 are replaced by 2 parts of 2-(4-aminophenoxy)benzenecarboxylic acid and 4 parts of silane coupling agent KH-570.

[0075] Example 9

[0076] The difference between this embodiment and embodiment 1 is that 6 parts of silane coupling agent KH-570 are replaced by 1 part of 2-(4-aminophenoxy)benzenecarboxylic acid and 5 parts of silane coupling agent KH-570.

[0077] Example 10

[0078] The only difference between this embodiment and embodiment 1 is that the amount of KN4010 cyclohexane oil is 8 parts and the amount of KN4016 cyclohexane oil is 12 parts.

[0079] Embodiment 11

[0080] The only difference between this embodiment and embodiment 1 is that the amount of KN4010 cyclohexane oil is 18 parts and the amount of KN4016 cyclohexane oil is 2 parts.

[0081] Example 12

[0082] The only difference between this embodiment and embodiment 1 is that the amount of KN4010 cyclohexane oil is 15 parts and the amount of KN4016 cyclohexane oil is 5 parts.

[0083] Example 13

[0084] The only difference between this embodiment and embodiment 1 is that the amount of KN4010 cyclohexane oil is 16 parts and the amount of KN4016 cyclohexane oil is 4 parts.

[0085] Embodiment 14

[0086] The only difference between this embodiment and embodiment 1 is that KN4010 cyclohexane oil is replaced with an equal amount of KN4006 cyclohexane oil.

[0087] Comparative Example 1

[0088] The only difference between this embodiment and embodiment 1 is that the silane coupling agent KH-570 and 2-(4-aminophenoxy)benzenecarboxylic acid are not added.

[0089] Test example

[0090] (1) The waterproof membranes in Examples 1 to 14 and Comparative Example 1 were tested for longitudinal tensile force and elongation (longitudinal) at maximum tensile force according to the test method for PY membranes in GB 23441-2009 "Self-adhesive polymer modified asphalt waterproof membranes". The test results are shown in Table 1.

[0091] Table 1 Performance test results of waterproof membranes in Examples 1 to 14 and Comparative Example 1

[0092]

[0093] Compared with Example 1, Example 4 replaces the silane coupling agent KH-570 with an equal amount of 2-(4-aminophenoxy)benzenecarboxylic acid, and Example 5 replaces the silane coupling agent KH-570 with 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570. Comparative Example 1 does not add silane coupling agent KH-570 and 2-(4-aminophenoxy)benzenecarboxylic acid. The results show that the tensile force and elongation at maximum tensile force of the waterproof membrane in Examples 1 and 4 to 5 are All of them are higher than Comparative Example 1, and among Examples 1 and 4-5, the tensile force and elongation at maximum tensile force of the waterproof membrane in Example 5 are the largest, indicating that the addition of silane coupling agent KH-570 or 2-(4-aminophenoxy)benzenecarboxylic acid can increase the tensile force and elongation at maximum tensile force of the waterproof membrane, and the simultaneous addition of silane coupling agent KH-570 and 2-(4-aminophenoxy)benzenecarboxylic acid can further increase the tensile force and elongation at maximum tensile force of the waterproof membrane.

[0094] Compared with Example 5, Examples 6 to 9 change the mass ratio of 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570. As a result, the tensile force and elongation at maximum tensile force of the waterproof membrane in Examples 7 to 9 are higher than those in Examples 5 to 6, indicating that when the mass ratio of 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570 is 1:1 to 5, the tensile force and elongation at maximum tensile force of the waterproof membrane can be further improved.

[0095] In addition, the tensile force and elongation at maximum tensile force of the waterproof membrane in Example 8 are higher than those in Example 7 and Example 9, indicating that when the mass ratio of 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570 is 1:2, the tensile force and elongation at maximum tensile force of the waterproof membrane are the largest.

[0096] Compared with Example 1, Example 14 replaces KN4010 cyclopentane oil with an equal amount of KN4006 cyclopentane oil. As a result, the tensile force and elongation at maximum tensile force of the waterproof membrane of Example 14 are lower than those of Example 1, indicating that when the cyclopentane oil is composed of KN4010 cyclopentane oil and KN4016 cyclopentane oil, the tensile force and elongation at maximum tensile force of the waterproof membrane can be further improved.

[0097] Compared with Example 1, Examples 10 to 13 changed the mass ratio of KN4010 cyclohexane oil and KN4016 cyclohexane oil. As a result, the tensile force and elongation at maximum tensile force of the waterproof membrane in Examples 1 and 12 to 13 were higher than those in Examples 10 to 11, indicating that when the mass ratio of KN4010 cyclohexane oil and KN4016 cyclohexane oil is 1 to 4:1, the tensile force and elongation at maximum tensile force of the waterproof membrane can be further improved.

[0098] (2) The peel strength of the waterproof membranes in Example 1, Examples 4-5 and Comparative Example 1 was measured according to the determination method for PY membranes in GB 23441-2009 "Self-adhesive polymer modified asphalt waterproof membranes". The measurement results are shown in Table 2.

[0099] Table 2 Peel strength test results of waterproof membranes in Example 1, Examples 4-5 and Comparative Example 1

[0100]

[0101] Compared with Example 1, Example 4 replaces the silane coupling agent KH-570 with an equal amount of 2-(4-aminophenoxy)benzenecarboxylic acid, Example 5 simultaneously adds 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570, and Comparative Example 1 does not add 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570. As a result, the peel strength of the waterproof membrane in Examples 1 and Examples 4 to 5 is higher than that in Comparative Example 1, and the peel strength of the waterproof membrane in Example 5 is the largest, indicating that the addition of silane coupling agent KH-570 or 2-(4-aminophenoxy)benzenecarboxylic acid can improve the peel strength of the waterproof membrane, and the simultaneous addition of silane coupling agent KH-570 and 2-(4-aminophenoxy)benzenecarboxylic acid can further improve the peel strength of the waterproof membrane.

[0102] (3) The waterproof membranes in Example 1, Examples 4-5 and Comparative Example 1 were subjected to heat aging dimensional stability testing according to the testing method for PY membranes in GB 23441-2009 “Self-adhesive polymer modified asphalt waterproof membranes”. The heat aging treatment method is as follows (5.16.2 PY membranes): the specimens were placed horizontally in a (70±2)°C oven for 7d±2h, taken out and placed at (23±2)°C for 24h. The test results are shown in Table 3.

[0103] Table 3 Dimensional stability of waterproof membranes in Example 1, Examples 4-5, and Comparative Example 1

[0104]

[0105] Compared with Example 1, the silane coupling agent KH-570 in Example 4 was replaced with an equal amount of 2-(4-aminophenoxy)benzenecarboxylic acid, and 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570 were added simultaneously in Example 5. Comparative Example 1 did not add 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570. As a result, the dimensional stability of the waterproof membrane in Examples 1 and Examples 4 to 5 was lower than that in Comparative Example 1, indicating that the addition of 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570 can improve the aging resistance of the waterproof membrane.

[0106] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-adhesive asphalt polyester waterproof membrane, characterized in that: It comprises a polyester tire base, an isolation layer bonded to the upper surface of the polyester tire base, and an anti-sticking layer bonded to the lower surface of the polyester tire base; the polyester tire base is bonded to the isolation layer and the anti-sticking layer through a modified asphalt layer; the modified asphalt layer comprises the following raw materials in parts by weight: 80-90 parts of asphalt, 20-25 parts of cyclohexane oil, 10-15 parts of SBS, 8-12 parts of tackifier, 20-25 parts of calcium carbonate, 6-8 parts of auxiliary agent, 1-3 parts of stabilizer, and 0.4-0.8 parts of antioxidant; the auxiliary agent is composed of 2-(4-aminophenoxy)benzenecarboxylic acid and silane coupling agent KH-570; The naphthenic oil is composed of KN4010 naphthenic oil and KN4016 naphthenic oil in a mass ratio of 1 to 4:

1. The kinematic viscosity of the KN4010 naphthenic oil at 40° C. is 156.7 mm 2 / s, the 40°C kinematic viscosity of the KN4016 naphthenic oil is 318 mm 2 / s; The tackifier is a terpene resin.

2. A self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The isolation layer is one of a PE film, a PVC film and a PET film.

3. The self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The polyester tire base layer is polyester felt.

4. The self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The particle size of the calcium carbonate is 800-1250 meshes.

5. The self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The thickness of the self-adhesive asphalt polyester waterproofing membrane is 3-4 mm.

6. The self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The stabilizer includes one or more of polyvinyl alcohol, ethylenediaminetetraacetic acid and sodium tripolyphosphate.

7. The self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The antioxidant includes one or more of antioxidant BHA, antioxidant BHT, and antioxidant 1010.

8. The self-adhesive asphalt polyester waterproofing membrane according to claim 1, characterized in that: The asphalt includes one or both of No. 70 asphalt and No. 90 asphalt.

9. The method for preparing a self-adhesive asphalt polyester waterproofing membrane according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Weigh the modified asphalt layer raw material for standby use; S2, mixing asphalt, naphthenic oil, calcium carbonate and additives uniformly to obtain a mixture; S3, adding the remaining other components to the mixture, mixing evenly, to obtain a modified asphalt layer material; S4, after impregnating the polyester tire base with the modified asphalt layer material, extruding and coating the modified asphalt layer material on the upper and lower surfaces of the polyester tire base, respectively, to form an upper modified asphalt layer and a lower modified asphalt layer; S5. Cover the surface of the lower modified asphalt layer with an isolation layer, and cover the surface of the upper modified asphalt layer with an anti-sticking layer, cool and roll up to obtain a self-adhesive asphalt polyester waterproof membrane.

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