Anti-ultraviolet SBS waterproof coiled material and preparation method thereof

Abstract

The invention relates to the technical field of waterproof coiled materials, in particular to an anti-ultraviolet SBS waterproof coiled material and a preparation method thereof.The waterproof coiled material comprises a base layer, an anti-ultraviolet SBS asphalt layer and a thin film layer, the anti-ultraviolet SBS asphalt layer comprises asphalt, an SBS elastomer, asphalt softening oil, an anti-aging waterproof multifunctional agent, composite filler, an initiator and the like, and the thin film layer is prepared from the following components; the anti-aging waterproof multifunctional agent prepared by the invention takes macromolecular polysiloxane as a main chain and simultaneously contains a double hindered amine structure and a benzoxazole structure, and the benzoxazole structure not only can cooperate with a polysiloxane structure to improve the thermal aging resistance of a material, but also can endow a coiled material with a rigid structure; the double hindered amine structure has better ultraviolet aging resistance and does not influence the improvement of silicon-oxygen bonds on the waterproof performance of the coiled material, and the functional agent can make the asphalt coiled material become a coiled material resistant to thermal aging, ultraviolet aging and chemical substance erosion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproofing membrane, in particular to an anti-ultraviolet SBS waterproofing membrane and a preparation method thereof. BACKGROUND

[0002] As a widely used waterproofing material in the field of construction and engineering, waterproofing membrane is usually used in a covering form to prevent water from penetrating into the structure or surface layer of a building. Its main applications include waterproofing treatment of roofs, basements, floors and walls. Common types of waterproofing membranes include SBS modified asphalt waterproofing membrane, ordinary asphalt waterproofing membrane, self-adhesive waterproofing membrane, PVC waterproofing membrane and TPO waterproofing membrane, etc. The preparation of SBS modified asphalt waterproofing membrane mainly relies on asphalt as the base material, and waste engine oil, rubber oil, etc. are used as plasticizers, which are combined with high molecular polymer modifiers through physical mixing.

[0003] Ultraviolet light is one of the key factors causing aging and discoloration of waterproofing membranes. In order to improve the anti-ultraviolet ability of waterproofing membranes, ultraviolet absorbers are often added to the materials to absorb ultraviolet light and convert it into heat energy, reducing the damage of ultraviolet light to the materials. However, the added ultraviolet absorbers are usually in the form of small molecules in the membrane, which may precipitate during actual use, resulting in a significant decrease in anti-ultraviolet effect and thus a decrease in waterproofing effect. In addition, nano materials such as zinc oxide and titanium dioxide nanoparticles are also selected to improve the anti-ultraviolet ability of waterproofing membranes. However, single nano material may cause agglomeration, affecting its own anti-ultraviolet performance, and also leading to a decrease in flatness and density of the membrane, thereby affecting the overall waterproofing performance of the membrane.

[0004] In view of the above problems, the present application provides an anti-ultraviolet SBS waterproofing membrane and a preparation method, which can solve the problems existing in the prior art. SUMMARY

[0005] In order to solve the above-mentioned technical problems, the present application provides an anti-ultraviolet SBS waterproofing membrane and a preparation method.

[0006] The object of the present application can be achieved by the following technical solutions: An anti-ultraviolet SBS waterproofing membrane, comprising a base layer, an anti-ultraviolet SBS asphalt, and a film layer. The anti-ultraviolet SBS asphalt layer comprises the following components by weight: 30-50 parts of asphalt, 8-20 parts of styrene-butadiene-styrene triblock copolymer (SBS) elastomer, 10-13 parts of asphalt softening oil, 3-10 parts of anti-aging waterproof multifunctional agent, 10-18 parts of composite filler, and 0.03-0.05 parts of initiator. The tire base layer is any one of a glass fiber cloth, a polyurethane fiber non-woven fabric; The film layer is a polyethylene film.

[0007] Further, the asphalt is any one of No. 200 asphalt or No. 90 asphalt; the asphalt softening oil is a mixed liquid of cashew nut shell liquid and naphthenic oil at a mass ratio of 1:1; the initiator is azobisisobutyronitrile; and the composite filler is a mixture of talcum powder and kaolin at a mass ratio of 1:2.

[0008] Further, the preparation method of the anti-aging waterproof multifunctional agent comprises the following steps: Step D1: oxypenoxazol propionic acid and single-end hydroxyl polysiloxane are added to toluene, p-toluenesulfonic acid is added, the temperature of the system is raised to 100-110°C under an oxygen-free environment, and the reaction is carried out for 3-5 hours. After the reaction is completed, sodium carbonate solution is used for neutralization, vacuum distillation is carried out, and cooling and filtration are carried out to prepare intermediate 1. The reaction route is as follows: ; Step D2: intermediate 1 is added to xylene, alkali is added, and stirring is carried out until the mixture is uniform. The temperature is raised to 80-90°C, a catalyst and 2-hydroxyterephthalic acid are added, and the reaction is carried out for 3-5 hours. The temperature is raised to 130-140°C, and the reaction is carried out for 10-12 hours. After the reaction is completed, cooling, filtration, washing, rotary evaporation, suction filtration, and vacuum drying are carried out to prepare intermediate 2. The reaction route is as follows: ; Step D3: intermediate 2 is uniformly mixed with thionyl chloride, the temperature is raised to 65-75°C, pyridine is added, and the reaction is carried out for 6-10 hours. Then, a mixed liquid of five-methyl piperidinol and benzene is slowly added, and the reaction is carried out for 8-10 hours. The temperature is cooled to room temperature, deionized water is added, and stirring is carried out for 30-50 minutes. An alkali solution is used under an environment of 0-5°C, the organic layer is separated, then extraction is carried out using ethyl acetate, and evaporation is carried out to prepare the anti-aging waterproof multifunctional agent. The reaction route is as follows: .

[0009] Reaction principle: the carboxylic acid group in oxypenoxazol propionic acid and the hydroxyl group in single-end hydroxyl polysiloxane are used to carry out esterification reaction to prepare intermediate 1. The chlorine-containing group in intermediate 1 and 2-hydroxyterephthalic acid are used to carry out condensation reaction to prepare intermediate 2 containing double carboxylic acid groups. Then, esterification reaction is carried out to prepare the anti-aging waterproof multifunctional agent containing a double hindered amine structure.

[0010] Further, in step D1, the amount of oxypenoxazol propionic acid and single-end hydroxyl polysiloxane is 0.1 mol:(0.1-0.12) mol; and the molecular weight of the single-end hydroxyl polysiloxane is 2000.

[0011] Further, in step D2, the amount ratio of intermediate 1, 2-hydroxyterephthalic acid, catalyst, base is 0.1 mol:(0.8-0.1) mol:(0.001-0.002) mol:(0.1-0.12) mol; the base is potassium carbonate; and the catalyst is copper chloride.

[0012] Further, in step D3, the amount ratio of intermediate 2 and thionyl chloride is 0.1 mol:(0.25-0.3) mol.

[0013] Further, in step D3, the base solution is 10% sodium hydroxide aqueous solution.

[0014] Further, the preparation method of the anti-ultraviolet SBS asphalt layer, Step C1: add asphalt, SBS elastomer, composite filler, initiator into a stirrer, heat to 160-170℃, stir for 0.5-1h to prepare anti-ultraviolet premix; Step C2: add asphalt softening oil, anti-aging waterproof multifunctional agent, anti-ultraviolet premix into a stirrer, keep 170-190℃, stir for 1-2h, hot discharge to prepare anti-ultraviolet SBS asphalt layer.

[0015] A preparation method of anti-ultraviolet SBS waterproof coiled material, comprising the following steps: Step one: heat the anti-ultraviolet SBS asphalt layer to 140-155℃, coat on both sides of the base layer, and heat press to shape to prepare anti-ultraviolet SBS asphalt layer intermediate; Step two: cover polyethylene film on both sides of the anti-ultraviolet SBS asphalt layer intermediate, isolate, press, trim, cool, and then roll to prepare anti-ultraviolet SBS waterproof coiled material. Beneficial effects: the application prepares a macromolecular anti-aging waterproof multifunctional agent with a macromolecular polysiloxane as a main chain, containing a double hindered amine structure and a large number of siloxane bonds, the benzoxazole structure itself contains a large molecular energy which can synergistically improve the heat aging resistance of the material with the polysiloxane structure, firstly, the double hindered amine structure in the application has better anti-ultraviolet aging performance than the single hindered amine structure molecule, and because it is grafted onto the macromolecular structure, it is not easy to precipitate. Secondly, on the one hand, the benzoxazole structure can synergistically improve the rigid structure of the coiled material with 2-hydroxy terephthalic acid to solve the defect of the decrease of rigidity when using polysiloxane alone, without affecting the improvement of the waterproof performance of the siloxane bond to the coiled material, on the other hand, it can improve the ultraviolet resistance of the coiled material with the benzene ring structure in 2-hydroxy terephthalic acid, because the benzene ring has aromaticity, its unique conjugated π electron system makes it have very high thermodynamic stability, this stability makes the asphalt rich in benzene ring and polycyclic aromatic hydrocarbon can resist the corrosion of oxygen, ultraviolet radiation, heat and chemicals.

[0016] Of course, it is not necessary for any product embodying the present application to achieve all of the above advantages simultaneously. DETAILED DESCRIPTION

[0017] The preferred embodiments of the application are described below, and it should be understood that the embodiments described herein are used to illustrate and explain the present application, and are not intended to limit the present application.

[0018] The tire base layer in the following examples is polyurethane fiber non-woven fabric. Example 1

[0019] An ultraviolet resistant SBS waterproof coiled material, comprising the following raw materials: a tire base layer, an ultraviolet resistant SBS asphalt layer, a film layer; The preparation method of the ultraviolet resistant waterproof coiled material comprises the following steps: Step one: heat the ultraviolet resistant SBS asphalt layer to 140℃, coat it on both sides of the tire base layer, and heat press to shape to obtain an ultraviolet resistant SBS asphalt layer intermediate; Step two: cover and isolate the two sides of the ultraviolet resistant SBS asphalt layer intermediate with polyethylene film, press, trim, cool, and roll to obtain the ultraviolet resistant SBS waterproof coiled material; The ultraviolet resistant SBS asphalt layer comprises the following raw materials: 30 parts of asphalt, 8 parts of SBS elastomer, 10 parts of asphalt softening oil, 8 parts of anti-aging waterproof multifunctional agent, 10 parts of composite filler, and 0.03 parts of initiator; The preparation method of the ultraviolet resistant SBS asphalt layer comprises the following steps: Step C1: add the above-mentioned asphalt, SBS elastomer, composite filler and initiator in the proportions by weight into a stirrer, heat to 160℃, and stir for 1h to obtain an ultraviolet resistant premix; Step C2: The above weight parts of asphalt softening oil, anti-aging waterproof multifunctional agent, anti-ultraviolet premix are added to the stirrer to keep 170℃, stirring for 2h, hot discharge, anti-ultraviolet SBS asphalt layer is prepared.

[0020] The preparation method of the anti-aging waterproof multifunctional agent comprises the following steps: Step D1: 0.1 mol of oxybenzoxazole propionic acid and 0.12 mol of monohydroxyl polysiloxane (molecular weight 2000) are added to 100 mL of toluene, 5 g of p-toluenesulfonic acid is added, and the temperature is raised to 106℃ under anaerobic environment. Reflux for 4h, after the reaction is completed, neutralize with sodium carbonate solution, distill under reduced pressure, cool and filter to prepare intermediate 1; Step D2: 0.1 mol of intermediate 1 is added to a xylene solution, followed by adding 0.11 mol of potassium carbonate base, heating to 85℃, adding 0.001 mol of copper chloride catalyst, 0.9 mol of 2-hydroxyterephthalic acid, reacting for 5h, heating to 140℃, and reacting for 12h. After the reaction is completed, cool, filter, rotary evaporate, suction filter, and vacuum dry to prepare intermediate 2; Step D3: 0.08 mol of intermediate 2 and 0.22 mol of thionyl chloride are heated to 70℃, 0.3 mL of pyridine is added, and the reaction is carried out for 8h. Then 0.2 mol of five-methyl piperidinol and 20 mL of benzene are slowly added, and the reaction is carried out for 8h. Cool to room temperature, add 20 mL of ionized water, stir for 30 min, separate the organic layer using 10% sodium hydroxide solution at 0℃, then extract with ethyl acetate, and evaporate to dryness to prepare the anti-aging waterproof multifunctional agent. Example two

[0021] The preparation method of the anti-ultraviolet waterproof roll comprises the following steps: Step one: heat the anti-ultraviolet SBS asphalt layer to 150℃, cover both sides of the base layer with the asphalt layer, and heat press to shape to prepare the anti-ultraviolet SBS asphalt layer intermediate; Step two: cover both sides of the anti-ultraviolet SBS asphalt layer intermediate with polyethylene film, isolate, press, trim, cool, and roll to prepare the anti-ultraviolet SBS waterproof roll.

[0022] The anti-ultraviolet SBS asphalt layer comprises the following raw materials: 38 parts of asphalt, 15 parts of SBS elastomer, 12 parts of asphalt softening oil, 9 parts of anti-aging waterproof multifunctional agent, 13 parts of composite filler, and 0.04 parts of initiator; The preparation method of the anti-ultraviolet SBS asphalt layer comprises the following steps: Step C1: the above weight parts of asphalt, SBS elastomer, composite filler, initiator into the stirrer to 165℃, stirring 1h to prepare anti-ultraviolet premix; Step C2: the above weight parts of asphalt softening oil, anti-aging waterproof multifunctional agent, anti-ultraviolet premix into the stirrer to keep 180℃, stirring 2h, hot discharge, to prepare anti-ultraviolet SBS asphalt layer.

[0023] The anti-aging waterproof multifunctional agent is the same as prepared in Example 1. Example Three

[0024] The preparation method of the anti-ultraviolet waterproof roll material includes the following steps: Step one: the anti-ultraviolet SBS asphalt layer is heated to 155℃, coated on both sides of the base layer, and hot-pressed to shape, to prepare the anti-ultraviolet SBS asphalt layer intermediate; Step two: the polyethylene film is covered on both sides of the anti-ultraviolet SBS asphalt layer intermediate, isolated, pressed, trimmed, cooled, and then rolled, to prepare the anti-ultraviolet SBS waterproof roll material.

[0025] The anti-ultraviolet SBS asphalt layer includes the following raw materials: asphalt 50 parts, SBS elastomer 20 parts, asphalt softening oil 13 parts, anti-aging waterproof multifunctional agent 10 parts, composite filler 18 parts, and initiator 0.05 parts. The preparation method of the anti-ultraviolet SBS asphalt layer includes the following steps: Step C1: the above weight parts of asphalt, SBS elastomer, composite filler, initiator into the stirrer to 170℃, stirring 1h to prepare anti-ultraviolet premix; Step C2: the above weight parts of asphalt softening oil, anti-aging waterproof multifunctional agent, anti-ultraviolet premix into the stirrer to keep 190℃, stirring 2h, hot discharge, to prepare anti-ultraviolet SBS asphalt layer.

[0026] The anti-aging waterproof multifunctional agent is the same as prepared in Example 1.

[0027] Comparative Example 1 The preparation method of the anti-ultraviolet waterproof roll material includes the following steps: Step one: the anti-ultraviolet SBS asphalt layer is heated to 150℃, coated on both sides of the base layer with the asphalt layer, and hot-pressed to shape, to prepare the anti-ultraviolet SBS asphalt layer intermediate; Step two: the polyethylene film is covered on both sides of the anti-ultraviolet SBS asphalt layer intermediate, isolated, pressed, trimmed, cooled, and then rolled, to prepare the anti-ultraviolet SBS waterproof roll material.

[0028] The anti-ultraviolet SBS asphalt layer comprises the following raw materials: 38 parts of asphalt, 15 parts of SBS elastomer, 12 parts of asphalt softening oil, 13 parts of composite filler, 0.04 parts of initiator, and 9 parts of intermediate 1. The preparation method of the anti-ultraviolet SBS asphalt layer comprises the following steps: Step C1: The above-mentioned raw materials by weight, i.e., asphalt, SBS elastomer, composite filler, and initiator, are added into a stirrer and heated to 175 DEG C, and stirred for 1 h to prepare an anti-ultraviolet premix; Step C2: The raw materials by weight, i.e., asphalt softening oil, intermediate 1, and anti-ultraviolet premix, are added into a stirrer and kept at 185 DEG C, and stirred for 2 h, and then taken out while hot to prepare the anti-ultraviolet SBS asphalt layer.

[0029] The intermediate 1 is the same as the intermediate 1 prepared in Example 1.

[0030] Comparative Example 2 The preparation method of the anti-ultraviolet waterproof roll material comprises the following steps: Step one: The anti-ultraviolet SBS asphalt layer is heated to 150 DEG C, covered on both sides of the base layer with the asphalt layer, and hot-pressed to shape to prepare an anti-ultraviolet SBS asphalt layer intermediate; Step two: The polyethylene film is covered on both sides of the anti-ultraviolet SBS asphalt layer intermediate, isolated, pressed, trimmed, cooled, and then rolled to prepare the anti-ultraviolet SBS waterproof roll material.

[0031] The anti-ultraviolet SBS asphalt layer comprises the following raw materials: 38 parts of asphalt, 15 parts of SBS elastomer, 12 parts of asphalt softening oil, 3 parts of anti-aging waterproof multifunctional agent, 13 parts of composite filler, and 0.04 parts of initiator. The preparation method of the anti-ultraviolet SBS asphalt layer comprises the following steps: Step C1: The above-mentioned raw materials by weight, i.e., asphalt, SBS elastomer, composite filler, and initiator, are added into a stirrer and heated to 165 DEG C, and stirred for 1 h to prepare an anti-ultraviolet premix; Step C2: The raw materials by weight, i.e., asphalt softening oil, anti-aging waterproof multifunctional agent, and anti-ultraviolet premix, are added into a stirrer and kept at 180 DEG C, and stirred for 2 h, and then taken out while hot to prepare the anti-ultraviolet SBS asphalt layer.

[0032] The anti-aging waterproof multifunctional agent is the same as prepared in Example 1.

[0033] Comparative Example 3 The preparation method of the anti-ultraviolet waterproof roll material comprises the following steps: Step one: The anti-ultraviolet SBS asphalt layer is heated to 150 DEG C, covered on both sides of the base layer with the asphalt layer, and hot-pressed to shape to prepare an anti-ultraviolet SBS asphalt layer intermediate; Step two: Cover the polyethylene film on both sides of the anti-ultraviolet SBS asphalt layer intermediate, isolation, pressing, trimming, cooling, and then roll, that is, the anti-ultraviolet SBS waterproofing membrane is made.

[0034] The anti-ultraviolet SBS asphalt layer comprises the following raw materials: 38 parts of asphalt, 15 parts of SBS elastomer, 12 parts of asphalt softening oil, 13 parts of composite filler, and 0.04 parts of initiator; The preparation method of the anti-ultraviolet SBS asphalt layer comprises the following steps: Step C1: The above-mentioned weight parts of asphalt, SBS elastomer, composite filler, and initiator are added to a stirrer, heated to 175℃, and stirred for 1h to prepare an anti-ultraviolet premix; Step C2: The above-mentioned weight parts of asphalt softening oil and anti-ultraviolet premix are added to a stirrer and kept at 185℃, and stirred for 2h, and then hot discharged to prepare the anti-ultraviolet SBS asphalt layer.

[0035] Performance test The anti-ultraviolet SBS asphalt is made into a test sample with a size of 150mm×25mm×3mm. The softening point temperature of the test sample is directly measured. Then the test sample is placed in a hot aging box at 80℃ for 28 days, and then taken out and tested again for the softening point temperature to obtain the softening point increment. The larger the softening point increment, the more serious the aging of the waterproof composite asphalt. Ultraviolet aging: The anti-ultraviolet asphalt layer is poured into an aging disc (Φ150mm×9.5mm), and the thickness of the sample is about 4.5mm. The aging disc containing the sample is placed in an LHX-205 type ultraviolet aging box for simulation aging at a temperature of 60℃, an average ultraviolet radiation intensity of the asphalt surface of about 2000μW / cm2, and an aging time of 10 days, to obtain the SBS modified asphalt ultraviolet aging sample for waterproofing membrane. The tensile property test is carried out according to GB / T328.8-2007, and an electronic universal testing machine is used. The size of the tensile sample is 300mm×50mm, and the distance between the clamps is set to 200mm. The constant rate of clamp movement during the tensile process is 100mm / min. The waterproofness test is carried out according to the B mode of GB / T328.10-2007. The specific operation method is as follows: the upper layer of the 7-hole disc is placed with water, the test temperature is set at 23±5℃, the device is filled with water until the air in the water pipe is exhausted, the upper layer of the sample is placed downward on the water permeable disc, the 7-hole disc is covered, one of the seams is parallel to the longitudinal direction of the waterproofing membrane, the cover is added, and the pressure is gradually increased until the sample is clamped on the disc. The non-water-facing surface of the sample can be dried with cloth or compressed air, and the pressure is gradually increased to the required value. After reaching the specified pressure, the pressure is maintained for (30±2) min, and the waterproofness of the sample is observed during the test. The performance test results are shown in the following table.

[0036] Table 1:

[0037] Table 2:

[0038] As can be seen from Table 1 and Table 2, after heat aging and ultraviolet aging, the performance tests of Examples 1-3 of the present application are carried out, and due to the addition of the anti-aging waterproof multifunctional agent, the test results are excellent, and the anti-heat aging performance, anti-ultraviolet aging performance, waterproof performance, and mechanical performance are excellent.

[0039] The anti-ultraviolet SBS asphalt layer in Comparative Example 1 is different from Example 2 in the preparation process, and the anti-aging waterproof multifunctional agent is replaced by the intermediate 1 containing polysiloxane structure and benzoxazole structure prepared in Example 1. Since it does not have anti-ultraviolet aging performance, the anti-ultraviolet and waterproof performance of the asphalt is affected after ultraviolet aging test. Compared with Example 2, it is found that the performance is good before ultraviolet aging, and it can be concluded that the intermediate 1 does not have anti-ultraviolet aging performance. In Comparative Example 2, compared with Example 2, the difference is that the anti-aging waterproof multifunctional agent added in the preparation process of the anti-ultraviolet SBS asphalt layer is only one third of that of Example 2, so the mechanical test before aging is not as good as that of Example 2, and after ultraviolet aging treatment, the anti-ultraviolet performance is better than that of Comparative Example 1, but because the functional agent added is less, the anti-aging performance and waterproof performance of Example 2 are poor. It can be concluded that the multifunctional agent can greatly improve the performance of the asphalt material; Comparative Example 3 does not have a multifunctional agent compared with Comparative Examples 1-2 and Example 2, so in the test, because it does not contain a polysiloxane structure, the tensile force and elongation at break test in the mechanical test before initial aging is the worst compared with the mechanical performance and impermeability of Comparative Examples 2 and 1. Because it does not contain a hindered amine structure, the test result after ultraviolet aging is the worst, which further proves the importance of the multifunctional agent for the performance improvement of the asphalt.

[0040] The above is only an example and description of the concept of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the concept of the present application or exceed the scope defined by the present claims, which shall belong to the protection scope of the present application.

Claims

1. An ultraviolet resistant SBS waterproofing membrane, characterized in that, It comprises a tire base layer, an anti-ultraviolet SBS asphalt, and a film layer. The anti-ultraviolet SBS asphalt layer comprises, by weight, the following components: 30-50 parts of asphalt, 8-20 parts of elastomer SBS elastomer, 10-13 parts of asphalt softening oil, 3-10 parts of anti-aging waterproof multifunctional agent, 10-18 parts of composite filler, and 0.03-0.05 parts of initiator. The tire base layer is any one of glass fiber cloth and polyurethane fiber non-woven fabric. The film layer is a polyethylene film.

2. The weathering modified bitumen waterproofing membrane according to claim 1, characterized in that, The asphalt is any one of No. 200 asphalt and No. 90 asphalt; the asphalt softening oil is a mixed liquid of cashew nut shell oil and naphthenic oil at a mass ratio of 1:1; the initiator is azobisisobutyronitrile; and the composite filler is a mixture of talcum powder and kaolin at a mass ratio of 1:

2.

3. The anti-UV SBS waterproofing membrane according to claim 1, characterized in that, The preparation method of the anti-aging waterproof multifunctional agent comprises the following steps: Step D1: oxypenoxazolyl propionic acid and monohydroxyl polysiloxane are added to toluene, p-toluenesulfonic acid is added, the system is heated to 100-110 DEG C under an oxygen-free environment, and reaction is carried out for 3-5 h; after the reaction is completed, sodium carbonate solution is used for neutralization, vacuum distillation is carried out, cooling and filtration are carried out, and intermediate 1 is prepared; Step D2: intermediate 1 is added to xylene, alkali is added, stirring is carried out, the mixture is uniformly mixed, heating is carried out to 80-90 DEG C, a catalyst and 2-hydroxyterephthalic acid are added, reaction is carried out for 3-5 h, heating is carried out to 130-140 DEG C, reaction is carried out for 10-12 h, after the reaction is completed, cooling, filtration, washing, rotary evaporation, suction filtration and vacuum drying are carried out, and intermediate 2 is prepared; Step D3: intermediate 2 and thionyl chloride are uniformly mixed, heating is carried out to 65-75 DEG C, pyridine is added, reaction is carried out for 6-10 h, then a mixed liquid of five-methyl-piperidinol and benzene is slowly added, reaction is carried out for 8-10 h, cooling is carried out to room temperature, deionized water is added, stirring is carried out for 30-50 min, an alkali solution is used under an environment of 0-5 DEG C, an organic layer is separated, then extraction is carried out using ethyl acetate, and the anti-aging waterproof multifunctional agent is prepared by distillation.

4. The anti-UV SBS waterproofing membrane according to claim 3, characterized in that, In step D1, the amount ratio of oxypenoxazolyl propionic acid and monohydroxyl polysiloxane is 0.1 mol:(0.1-0.12) mol; the molecular weight of the monohydroxyl polysiloxane is 2000.

5. The anti-UV SBS waterproofing membrane according to claim 3, wherein In step D2, the amount ratio of intermediate 1, 2-hydroxyterephthalic acid, a catalyst and alkali is 0.1 mol:(0.8-0.1) mol:(0.001-0.002) mol:(0.1-0.12) mol; the alkali is potassium carbonate; and the catalyst is copper chloride.

6. The anti-UV SBS waterproofing membrane according to claim 3, characterized in that, In step D3, the amount ratio of intermediate 2 and thionyl chloride is 0.1 mol:(0.25-0.3) mol.

7. The anti-UV SBS waterproofing membrane according to claim 3, characterized in that, In step D3, the alkali solution is a sodium hydroxide aqueous solution with a mass fraction of 10%.

8. The anti-UV SBS waterproofing membrane according to claim 1, characterized in that, The preparation method of the anti-ultraviolet SBS asphalt layer comprises the following steps: Step C1: asphalt, SBS elastomer, composite filler and initiator are added to a stirrer, heating is carried out to 160-170 DEG C, and stirring is carried out for 0.5-1 h to prepare an anti-ultraviolet premix; Step C2: Add bitumen softening oil, anti-aging waterproof multifunctional agent, anti-ultraviolet premix to the stirrer to keep 170-190℃, stir for 1-2h, take out the anti-ultraviolet SBS bitumen layer while hot.

9. A method for preparing anti-ultraviolet SBS waterproof coiled material, comprising the following steps: Step one: heat the anti-ultraviolet SBS bitumen layer to 140-155℃, coat on both sides of the base layer, and heat-press to shape to prepare the anti-ultraviolet SBS bitumen layer intermediate; Step two: cover polyethylene film on both sides of the anti-ultraviolet SBS bitumen layer intermediate, isolate, press, trim, cool, and then roll to prepare the anti-ultraviolet SBS waterproof coiled material.

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