High-temperature-resistant anti-aging waterproof roll and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant anti-aging waterproof roll and a preparation method thereof. On one hand, the high-temperature-resistant anti-aging waterproof coiled material comprises an SBS asphalt waterproof layer and a concrete adhesion layer, and the SBS asphalt waterproof layer is prepared from, by mass, 80-100 parts of matrix asphalt, 10-16 parts of an SBS thermoplastic elastomer, 8-12 parts of a plasticizer, 8-14 parts of waste rubber powder, 6-10 parts of nano titanium dioxide, 12-20 parts of a micro-capsule repairing agent and 2-6 parts of an antioxidant. 8-10 parts of a warm mixing agent; the microcapsule repairing agent comprises microcapsule-coated aromatic hydrocarbon oil, microcapsule-coated butyl glycidyl ether and microcapsule-coated epoxidized soybean oil. On the other hand, the invention provides a preparation method of the high-temperature-resistant anti-aging waterproof roll. The waterproof coating is excellent in waterproof performance, has relatively excellent high temperature resistance and ageing resistance, and is relatively convenient to construct.

Description

Technical Field

[0001] This application relates to the field of waterproof materials technology, and in particular to a high-temperature resistant and anti-aging waterproof membrane and its preparation method. Background Technology

[0002] Self-adhesive SBS bitumen waterproof membranes and self-adhesive polymer-modified bitumen waterproof membranes are currently the most widely used and applied waterproof membranes. These membranes are easy to install at room temperature, require no complex pretreatment of the surface, and offer good waterproofing performance at a relatively low cost. These self-adhesive bitumen waterproof membranes mainly consist of a bitumen-based membrane body and a release liner adhered to the outer surface. To use, the release liner is removed from the self-adhesive side, the membrane is laid, and after complete adhesion and curing, the release liner is removed to complete the installation. These two types of bitumen waterproof membranes are relatively inexpensive and offer excellent performance, accounting for over 60% of waterproofing applications in various building roofs, exterior walls, and basements. The usage rate of self-adhesive SBS bitumen waterproof membranes is even higher than that of self-adhesive polymer-modified bitumen waterproof membranes.

[0003] Existing self-adhesive SBS bitumen waterproof membranes use SBS modified bitumen as the waterproofing base material, and can be with or without a reinforcing layer. They are inexpensive and easy to install. However, existing self-adhesive SBS bitumen waterproof membranes have relatively poor high-temperature resistance and insufficient aging resistance, making them prone to blistering, cracking, and leakage after a period of time. Furthermore, the self-adhesive layer of most existing self-adhesive SBS bitumen waterproof membranes is also made of bitumen-based materials, which are also prone to aging, leading to issues such as delamination and leakage after a period of time. Summary of the Invention

[0004] In order to solve at least one of the above-mentioned technical problems, and to develop an SBS bitumen waterproof membrane with excellent waterproof performance, superior high temperature resistance and aging resistance, excellent high temperature resistance and aging resistance of the self-adhesive layer, and convenient construction, this application provides a high temperature resistant and anti-aging waterproof membrane and its preparation method.

[0005] On one hand, this application provides a high-temperature resistant and anti-aging waterproof membrane, the membrane comprising an SBS asphalt waterproof layer and a concrete adhesion layer. The mass ratio of each raw material component in the SBS asphalt waterproof layer includes: 80-100 parts of base asphalt, 10-16 parts of SBS thermoplastic elastomer, 8-12 parts of plasticizer, 8-14 parts of waste rubber powder, 6-10 parts of nano titanium dioxide, 12-20 parts of microcapsule repair agent, 2-6 parts of antioxidant, and 8-10 parts of warm mix agent. The microcapsule repair agent comprises: microcapsule-coated aromatic oil, microcapsule-coated butyl glycidyl ether, and microcapsule-coated epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2-4:3-5.

[0006] Optionally, the SBS bitumen waterproofing layer may also include a fiberglass reinforcing layer.

[0007] Optionally, the mass proportions of each raw material component in the SBS asphalt waterproofing layer include: 86-90 parts of base asphalt, 12-14 parts of SBS thermoplastic elastomer, 8-10 parts of plasticizer, 10-12 parts of waste rubber powder, 7-8 parts of nano titanium dioxide, 14-16 parts of microcapsule repair agent, 3-4 parts of antioxidant, and 8-10 parts of warm mix agent.

[0008] Optionally, the antioxidant may be a hindered phenolic antioxidant.

[0009] Optionally, the plasticizer is random polypropylene.

[0010] Optionally, the mass proportions of each raw material component in the concrete adhesion layer include: 24-26 parts of base asphalt, 14-16 parts of SBS thermoplastic elastomer, 10-12 parts of SIS thermoplastic elastomer, 8-10 parts of polyethylene wax, 12-14 parts of tackifying resin, 4-6 parts of nano titanium dioxide, 2-6 parts of antioxidant, 10-12 parts of microcapsule repair agent, and 6-8 parts of warm mix agent.

[0011] Optionally, the preparation of the microencapsulated aromatic oil includes the following steps: Sa, accurately weigh carboxymethyl chitosan and aromatic oil according to a mass ratio of 4:1, dissolve carboxymethyl chitosan in water, and prepare an aqueous solution with a concentration of 2~2.5%; Sb. Aromatic oil is poured into an aqueous solution as the oil phase, Tween 80 emulsifier is added, and the mixture is stirred and homogenized at 4000~4500 rpm for more than 5 minutes to obtain a homogeneous emulsion. Sc. Take a ferric chloride solution with a concentration of 2-2.5% and a volume of 80-100% of the homogeneous emulsion volume. Pour the homogeneous emulsion obtained in step Sb into the ferric chloride solution and stir at 400-500 rpm for more than 1 hour. Filter out the solid and dry it to obtain microcapsule-coated aromatic oil.

[0012] Optionally, the preparation of the microencapsulated butyl glycidyl ether includes the following steps: Sa, accurately weigh gelatin, pectin and butyl glycidyl ether according to the mass ratio of 2:2:1, and prepare aqueous solutions of gelatin and pectin with deionized water with a concentration of 4.5~5% respectively; Sb. Add butyl glycidyl ether to the gelatin aqueous solution prepared in step Sa, stir at 800~1000 rpm for more than 15 minutes, then add the gelatin aqueous solution, homogenize at 8000 rpm for more than 10 minutes to obtain a homogeneous emulsion. Sc. Add glutaraldehyde solution with a concentration of 25% or higher to the homogeneous emulsion obtained in step Sb, let it stand for more than 30 minutes, filter out the solid, and dry it to obtain microcapsule-encapsulated butyl glycidyl ether.

[0013] Optionally, the preparation of the microencapsulated epoxidized soybean oil includes the following steps: Sa, Weigh out gelatin, pectin and epoxidized soybean oil precisely according to a mass ratio of 2:2:1, and prepare aqueous solutions of gelatin and pectin with deionized water with a concentration of 4.5-5% respectively. Sb. Add epoxidized soybean oil to the gelatin aqueous solution prepared in step Sa, stir at 800~1000 rpm for more than 15 minutes, then add gelatin aqueous solution, homogenize at 8000 rpm for more than 10 minutes to obtain a homogeneous emulsion. Sc. Add glutaraldehyde solution with a concentration of 25% or higher to the homogeneous emulsion obtained in step Sb, let it stand for more than 30 minutes, filter out the solid matter, and dry it to obtain microencapsulated epoxidized soybean oil.

[0014] On the other hand, this application provides a method for preparing the above-mentioned high-temperature resistant and anti-aging waterproof membrane, including the following steps: S1. Add the SBS thermoplastic elastomer, waste rubber powder, nano titanium dioxide and antioxidant in the formula to the mixer, mix at 165~175℃ for more than 30 minutes, and then cool to obtain the mixed colloid. S2. Add the mixed colloid obtained in step S1 to the base asphalt of the formula, add the microcapsule repair agent and warm mix agent of the formula, and then mix at 90~100℃ for more than 2 hours to obtain SBS modified asphalt. S3. The SBS modified bitumen obtained in step S2 is calendered and then coated with a concrete adhesive layer. After attaching a release film, a high-temperature resistant and anti-aging waterproof membrane is obtained.

[0015] In summary, the present invention has at least one of the following beneficial technical effects: 1. This application uses SBS modified bitumen as the main raw material, adds a certain amount of plasticizer and waste rubber powder, and the modified bitumen obtained after mixing has excellent high temperature resistance. In addition, this application adds nano titanium dioxide as a filler to the modified bitumen and adds a certain amount of antioxidant, which can further improve the high temperature resistance and aging resistance of the waterproof membrane.

[0016] 2. This application adds a specific ratio of microcapsule repair agent to the SBS modified bitumen of the waterproof membrane, using a water-soluble wall material as the shell of the microcapsules. After the waterproof membrane ages and is damaged, it can disintegrate upon contact with water, releasing the repair agent to effectively repair the aged SBS bitumen, restore its function, and further improve the aging resistance of the waterproof membrane.

[0017] 3. The waterproof membrane of this application is prepared by low-temperature mixing and the addition of a warm mixing agent, which can better ensure the integrity of the microcapsule repair agent. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the embodiments.

[0019] This application provides a high-temperature resistant and anti-aging waterproof membrane, comprising an SBS asphalt waterproof layer and a concrete adhesion layer. The SBS asphalt waterproof layer comprises the following components in the following mass ratio: 80-100 parts of base asphalt, 10-16 parts of SBS thermoplastic elastomer, 8-12 parts of plasticizer, 8-14 parts of waste rubber powder, 6-10 parts of nano titanium dioxide, 12-20 parts of microcapsule repair agent, 2-6 parts of antioxidant, and 8-10 parts of warm mix agent. The microcapsule repair agent comprises microcapsules of aromatic oil, microcapsules of butyl glycidyl ether, and microcapsules of epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2-4:3-5.

[0020] The preparation method of the above-mentioned high-temperature resistant and anti-aging waterproof membrane includes the following steps: S1. Add the SBS thermoplastic elastomer, waste rubber powder, nano titanium dioxide and antioxidant in the formula to the mixer, mix at 165~175℃ for more than 30 minutes, and then cool to obtain the mixed colloid. S2. Add the mixed colloid obtained in step S1 to the base asphalt of the formula, add the microcapsule repair agent and warm mix agent of the formula, and then mix at 90~100℃ for more than 2 hours to obtain SBS modified asphalt. S3. The SBS modified bitumen obtained in step S2 is calendered and then coated with a concrete adhesive layer. After attaching a release film, a high-temperature resistant and anti-aging waterproof membrane is obtained.

[0021] Prior to this application, existing technologies for preparing aging-resistant SBS modified bitumen waterproof membranes primarily used high-grade, anti-aging bitumen as the main raw material, with the addition of a certain amount of anti-aging additives to achieve membranes with superior high-temperature resistance and aging resistance. Furthermore, the use of microencapsulation technology to encapsulate a certain amount of bitumen rejuvenator as a microencapsulation repair agent is also an important technology developed in recent years.

[0022] However, in existing technologies, microcapsule repair agents are limited by the stability and solubility of the wall material, and generally only relatively stable chemical properties such as aromatic oils are selected as regenerators, resulting in very limited repair effects; while traditional aging-resistant modifications also have limited modification effects and are relatively expensive.

[0023] The applicant designed a regenerative repair agent with a specific ratio and used a specific preparation process to form a coating with a water-soluble wall material, effectively solving the problems of existing technologies.

[0024] The following are preparation examples and embodiments of this application.

[0025] The main raw materials used in the embodiments of this application are all commercially available.

[0026] The following materials were purchased: base asphalt (grade 90) from Keli Petrochemical Co., Ltd.; SBS thermoplastic elastomer (S / B ratio 30 / 70) from Changsha Shenli Chemical Technology Co., Ltd.; dibutyl phthalate from Shandong Kexing Chemical Co., Ltd.; random polypropylene from Sinopec Yanshan Petrochemical; waste rubber powder (40-100 mesh) from Hebei Runsheng Chemical Technology Co., Ltd.; nano titanium dioxide (40-100 nm) from Hebei Tengshuang Metal Materials Co., Ltd.; antioxidant (antioxidant 1010) from Dongguan Xingyuan Chemical Co., Ltd.; aromatic oil (aromatic content ≥60%) from Sinopec; butyl glycidyl ether from Shanghai Aladdin; and epoxidized soybean oil (epoxide value ≥6%) from Anhui Yuanyi Chemical Co., Ltd.

[0027] The following is a preparation example of this application.

[0028] Preparation Example 1 The preparation of the microencapsulated aromatic oil in this example includes the following steps: Sa, accurately weigh carboxymethyl chitosan and aromatic oil according to a mass ratio of 4:1, dissolve carboxymethyl chitosan in water, and prepare an aqueous solution with a concentration of 2.5%; Sb. Aromatic oil was poured into an aqueous solution as the oil phase, and Tween 80 emulsifier with a final concentration of 0.5% was added. The mixture was stirred and homogenized at 4500 rpm for 5 min to obtain a homogeneous emulsion. Sc. Take a ferric chloride solution with a concentration of 2.5% and a volume of 80% of the homogeneous emulsion. Slowly pour the homogeneous emulsion obtained in step Sb into the ferric chloride solution. Stir and react at 450 rpm for 1 hour. Filter out the solid and dry it under vacuum to obtain microcapsule-coated aromatic oil.

[0029] Preparation Example 2 The preparation of the microencapsulated butyl glycidyl ether in this example includes the following steps: Sa, accurately weigh gelatin, pectin and butyl glycidyl ether according to a mass ratio of 2:2:1, and prepare 5% aqueous solutions of gelatin and pectin with deionized water respectively. Sb. Add butyl glycidyl ether to the gelatin aqueous solution prepared in step Sa, stir at 800 rpm for 15 min, then add the gelatin aqueous solution, homogenize at a speed of 8500 rpm or higher for 15 min to obtain a homogeneous emulsion. Sc. Add glutaraldehyde solution with a concentration of more than 25% to the homogeneous emulsion obtained in step Sb, the amount added is 25% of the total volume of the homogeneous emulsion, let it stand for 30 min, filter out the solid, and dry it under vacuum to obtain microcapsule-encapsulated butyl glycidyl ether.

[0030] Preparation Example 3 The preparation of the microencapsulated butyl glycidyl ether in this example includes the following steps: Sa, accurately weigh gelatin, pectin and epoxidized soybean oil according to a mass ratio of 2:2:1, and prepare 5% aqueous solutions of gelatin and pectin with deionized water respectively. Sb. Add epoxidized soybean oil to the gelatin aqueous solution prepared in step Sa, stir at 800 rpm for 15 min, then add the gelatin aqueous solution, homogenize at a speed of 8500 rpm or higher for 15 min to obtain a homogeneous emulsion. Sc. Add glutaraldehyde solution with a concentration of more than 25% to the homogeneous emulsion obtained in step Sb, the amount added is 25% of the total volume of the homogeneous emulsion, let it stand for 30 minutes, filter out the solid matter, and vacuum dry it to obtain microencapsulated epoxidized soybean oil.

[0031] Preparation Example 4 The concrete adhesive layer of this preparation example includes the following mass proportions of each raw material component: 25 parts base asphalt, 15 parts SBS thermoplastic elastomer, 11.5 parts SIS thermoplastic elastomer, 8.5 parts polyethylene wax, 14 parts tackifying resin, 5 parts nano titanium dioxide, 4 parts antioxidant, 12 parts microcapsule repair agent, and 7 parts warm mix agent.

[0032] The preparation of the concrete adhesive layer in this example includes the following steps: Sa, add the formulated amounts of SBS thermoplastic elastomer, SIS thermoplastic elastomer, polyethylene wax, tackifying resin, nano titanium dioxide and antioxidant into a mixer, mix at 165~175℃ for 30 minutes, and then cool to obtain the compound. Sb. Add the mixed rubber obtained in step Sa to the base asphalt of the formula, add the microcapsule repair agent and warm mix agent of the formula, and then mix at 90~100℃ for 2 hours to obtain the concrete adhesion layer adhesive.

[0033] The following are embodiments of this application.

[0034] The waterproof membranes in the embodiments of this application are all non-woven membranes with a thickness of 2.5 mm. The waterproof membranes in embodiments 1 to 8 of this application all use EPDM hot melt pressure-sensitive adhesive purchased from Shanghai Hongchong New Material Technology Co., Ltd. as the concrete adhesion layer, with an adhesive thickness of 0.5 mm.

[0035] The preparation of the high-temperature resistant and anti-aging waterproof membrane according to the embodiments of this application includes the following steps: S1. Add the SBS thermoplastic elastomer, waste rubber powder, nano titanium dioxide and antioxidant in the formula to the mixer, mix at 165~175℃ for 30 minutes, and then cool to obtain the mixed colloid. S2. Add the mixed colloid obtained in step S1 to the base asphalt of the formula amount, add the microcapsule repair agent and warm mix agent of the formula amount, and then mix at 90~100℃ for 2 hours to obtain SBS modified asphalt. S3. The SBS modified bitumen obtained in step S2 is calendered and then coated with a concrete adhesive layer. After attaching a release film, a high-temperature resistant and anti-aging waterproof membrane is obtained. Example 1

[0036] The high-temperature resistant and anti-aging waterproof membrane of this embodiment includes an SBS asphalt waterproof layer and a concrete adhesion layer. The raw material components of the SBS asphalt waterproof layer are proportioned as follows: 80 parts base asphalt, 10 parts SBS thermoplastic elastomer, 8 parts dibutyl phthalate, 8 parts waste rubber powder, 6 parts nano titanium dioxide, 12 parts microcapsule repair agent, 2 parts antioxidant, and 8 parts warm mix agent. The microcapsule repair agent includes microcapsules of aromatic oil, microcapsules of butyl glycidyl ether, and microcapsules of epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2:3. The microcapsules of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil are selected from the microcapsules prepared in Examples 1-3, respectively.

[0037] In this embodiment, commercially available PE release film is selected as the release film. Example 2

[0038] The high-temperature resistant and anti-aging waterproof membrane of this embodiment includes an SBS asphalt waterproof layer and a concrete adhesion layer. The mass ratio of each raw material component in the SBS asphalt waterproof layer is as follows: 100 parts base asphalt, 16 parts SBS thermoplastic elastomer, 12 parts dibutyl phthalate, 14 parts waste rubber powder, 10 parts nano titanium dioxide, 20 parts microcapsule repair agent, 6 parts antioxidant, and 10 parts warm mix agent. The microcapsule repair agent includes microcapsules of aromatic oil, microcapsules of butyl glycidyl ether, and microcapsules of epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2:3. The microcapsules of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil are respectively selected from the microcapsules prepared in Examples 1 to 3.

[0039] In this embodiment, commercially available PE release film is selected as the release film. Example 3

[0040] The high-temperature resistant and anti-aging waterproof membrane of this embodiment includes an SBS asphalt waterproof layer and a concrete adhesion layer. The mass proportions of the raw material components of the SBS asphalt waterproof layer are as follows: 86 parts base asphalt, 12 parts SBS thermoplastic elastomer, 8 parts dibutyl phthalate, 10 parts waste rubber powder, 7 parts nano titanium dioxide, 14 parts microcapsule repair agent, 3 parts antioxidant, and 8 parts warm mix agent. The microcapsule repair agent includes microcapsules of aromatic oil, microcapsules of butyl glycidyl ether, and microcapsules of epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2:3. The microcapsules of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil are selected from the microcapsules prepared in Examples 1-3, respectively.

[0041] In this embodiment, commercially available PE release film is selected as the release film. Example 4

[0042] The high-temperature resistant and anti-aging waterproof membrane of this embodiment includes an SBS asphalt waterproof layer and a concrete adhesion layer. The mass ratio of each raw material component in the SBS asphalt waterproof layer is as follows: 90 parts base asphalt, 14 parts SBS thermoplastic elastomer, 10 parts dibutyl phthalate, 12 parts waste rubber powder, 8 parts nano titanium dioxide, 16 parts microcapsule repair agent, 4 parts antioxidant, and 10 parts warm mix agent. The microcapsule repair agent includes microcapsules of aromatic oil, microcapsules of butyl glycidyl ether, and microcapsules of epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2:3. The microcapsules of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil are respectively selected from the microcapsules prepared in Examples 1 to 3.

[0043] In this embodiment, commercially available PE release film is selected as the release film. Example 5

[0044] The high-temperature resistant and anti-aging waterproof membrane of this embodiment includes an SBS asphalt waterproof layer and a concrete adhesion layer. The mass proportions of the raw material components of the SBS asphalt waterproof layer are as follows: 88 parts base asphalt, 13 parts SBS thermoplastic elastomer, 9 parts dibutyl phthalate, 11 parts waste rubber powder, 7.5 parts nano titanium dioxide, 15 parts microcapsule repair agent, 3.6 parts antioxidant, and 8.8 parts warm mix agent. The microcapsule repair agent includes microcapsules of aromatic oil, microcapsules of butyl glycidyl ether, and microcapsules of epoxidized soybean oil. The mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:2:3. The microcapsules of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil are respectively selected from the microcapsules prepared in Examples 1 to 3.

[0045] In this embodiment, commercially available PE release film is selected as the release film. Example 6

[0046] The difference between this embodiment and Embodiment 5 is that the mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:4:5. Example 7

[0047] The difference between this embodiment and Embodiment 5 is that the mass ratio of aromatic oil, butyl glycidyl ether, and epoxidized soybean oil in the microcapsule repair agent is 10:3:4. Example 8

[0048] The difference between this embodiment and Embodiment 7 is that the plasticizer used is random polypropylene. Example 9

[0049] The difference between this embodiment and Example 8 is that the concrete adhesive layer prepared in Example 4 is used.

[0050] Comparative Example 1 Rainbow Waterproof Fengxing FXZ150 membrane was selected as comparative example 1.

[0051] Comparative Example 2 The difference between this comparative example and Example 9 is that an equal amount of microencapsulated aromatic oil is used instead of microencapsulated butyl glycidyl ether and microencapsulated epoxidized soybean oil.

[0052] Comparative Example 3 The difference between this comparative example and Example 9 is that an equal amount of microencapsulated aromatic oil is used instead of microencapsulated butyl glycidyl ether.

[0053] Comparative Example 4 The difference between this comparative example and Example 9 is that an equal amount of microencapsulated aromatic oil is used instead of microencapsulated epoxidized soybean oil.

[0054] The performance of the products from Examples 1-9 and Comparative Examples 1-4 was tested, as well as their performance after high-temperature aging. Performance testing was performed using the methods described in GB 18242-2008; the aging treatment was conducted at a temperature of 80°C, humidity of 85%, and UV intensity of 0.45 W / m². 2 Under the given conditions, the treatment lasted for 240 hours, followed by a 2.5-hour soaking in water.

[0055] The results are shown in Tables 1 and 2 below.

[0056] Table 1 Performance test results of Examples 1-9 and Comparative Examples 1-4

[0057] Table 2. Performance test results of Examples 1-9 and Comparative Examples 1-4 after aging.

[0058] As can be seen from the data in Table 1, the waterproof membranes prepared in Examples 1-9 of this application have significantly improved tensile strength, high temperature resistance, and aging resistance compared with the waterproof membranes used in Comparative Example 1 of the prior art. In addition, the waterproof membranes prepared in Examples 1-9 of this application can withstand high temperatures of 130°C and can maintain their performance well under long-term humid and hot conditions.

[0059] The data in Table 1, comparing the data from Examples 1 to 9, shows that the performance of the roll material can be further improved after adjusting the raw material ratio.

[0060] By comparing the data of Example 9 and Comparative Examples 2-3 in Table 1, it can be seen that after optimizing the microcapsule repair agent ratio, the aging repair effect of this application is more prominent, and the performance of the repaired roll material is almost consistent with that of the new roll material. Furthermore, after using irregular polypropylene as a plasticizer, the waterproof performance of the roll material and its waterproof performance after high-temperature aging can be further enhanced. The applicant argues that due to high-temperature aging, both the asphalt and adhesive layers of the waterproof membrane suffer damage to their internal cross-linking, leading to internal cracks. These cracks are the primary cause of leakage in the waterproof membrane. The repair agent wall material, upon immersion in water, swells and releases aromatic oils, butyl glycidyl ether, and epoxidized soybean oil. The aromatic oils and epoxidized soybean oil dissolve in the asphalt, repairing it, while the butyl glycidyl ether repairs the broken cross-links in the SBS adhesive. The introduced epoxidized soybean oil in the repaired asphalt results in a large number of epoxy groups, which cross-link with the active groups in the asphalt and other components of the membrane, repairing the entire cross-linking network and restoring the membrane's excellent waterproof performance.

[0061] The applicant conducted concrete adhesion tests on the waterproof membranes of Examples 1-9 of this application. After aging treatment and water permeability testing, the concrete adhesion layer of the membranes of Examples 1-8 showed varying degrees of hollowing and desorption, while the concrete adhesion layer of the membrane of Example 9 did not show any hollowing or desorption problems. It is evident that the membrane of this application, using the specific concrete adhesion layer of this application, exhibits significantly better high-temperature resistance and aging resistance than existing hot-melt pressure-sensitive adhesives.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high temperature resistant, age resistant, waterproofing membrane, characterized in that, The roll material includes an SBS asphalt waterproof layer and a concrete adhesion layer, and the SBS asphalt waterproof layer includes the following components in the following proportions: 80-100 parts of base asphalt, 10-16 parts of SBS thermoplastic elastomer, 8-12 parts of plasticizer, 8-14 parts of waste rubber powder, 6-10 parts of nano titanium dioxide, 12-20 parts of microcapsule repair agent, 2-6 parts of antioxidant, and 8-10 parts of warm-mixing agent; the microcapsule repair agent includes microcapsule-coated aromatic oil, microcapsule-coated butyl glycidyl ether, and microcapsule-coated epoxy soybean oil; and the mass ratio of the aromatic oil, butyl glycidyl ether, and epoxy soybean oil in the microcapsule repair agent is 10:2-4:3-5.

2. The high temperature resistant, age resistant, waterproofing membrane of claim 1, wherein, The SBS asphalt waterproof layer further includes a glass fiber body.

3. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, The SBS asphalt waterproof layer includes the following components in the following proportions: 86-90 parts of base asphalt, 12-14 parts of SBS thermoplastic elastomer, 8-10 parts of plasticizer, 10-12 parts of waste rubber powder, 7-8 parts of nano titanium dioxide, 14-16 parts of microcapsule repair agent, 3-4 parts of antioxidant, and 8-10 parts of warm-mixing agent.

4. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, The antioxidant is a hindered phenol antioxidant.

5. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, The plasticizer is random polypropylene.

6. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, The concrete adhesion layer includes the following components in the following proportions: 24-26 parts of base asphalt, 14-16 parts of SBS thermoplastic elastomer, 10-12 parts of SIS thermoplastic elastomer, 8-10 parts of polyethylene wax, 12-14 parts of tackifying resin, 4-6 parts of nano titanium dioxide, 2-6 parts of antioxidant, 10-12 parts of microcapsule repair agent, and 6-8 parts of warm-mixing agent.

7. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, The preparation of the microcapsule-coated aromatic oil includes the following steps: Sa, carboxymethyl chitosan and aromatic oil are accurately weighed according to a mass ratio of 4:1, the carboxymethyl chitosan is dissolved in water to prepare a water phase solution with a concentration of 2-2.5%, Sb, the aromatic oil is poured into the water phase solution as an oil phase, a Tween 80 emulsifier is added, stirring and homogenization are performed at a speed of 4000-4500 rpm for more than 5 min to prepare a homogenized emulsion, Sc, an iron trichloride solution with a volume of 80-100% of the volume of the homogenized emulsion and a concentration of 2-2.5% is measured, the homogenized emulsion prepared in step Sb is poured into the iron trichloride solution, stirring is performed at a speed of 400-500 rpm for more than 1 h, the solid product is filtered out, and the microcapsule-coated aromatic oil is prepared after drying. The preparation of the microcapsule-coated butyl glycidyl ether includes the following steps: Sa, gelatin, pectin, and butyl glycidyl ether are accurately weighed according to a mass ratio of 2:2:1, the gelatin and pectin are respectively prepared into water phase solutions with a concentration of 4.5-5% using deionized water, Sb, the butyl glycidyl ether is added to the gelatin water phase solution prepared in step Sa, stirring is performed at a speed of 800-1000 rpm for more than 15 min, the pectin water phase solution is then added, and homogenization is performed at a speed of more than 8000 rpm for more than 10 min to prepare a homogenized emulsion, Sc, a glutaraldehyde solution with a concentration of more than 25% is added to the homogenized emulsion prepared in step Sb, the mixture is left to react for more than 30 min, the solid product is filtered out, and the microcapsule-coated butyl glycidyl ether is prepared after drying.

8. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, ​ ​ ​ ​ 9. The high temperature resistant, age resistant waterproofing membrane of claim 1, wherein, The preparation of the microencapsulated epoxy soybean oil comprises the following steps: Sa, accurately weigh gelatin, pectin and epoxy soybean oil according to the mass ratio of 2:2:1, and prepare the gelatin and pectin into aqueous solutions with a concentration of 4.5-5% respectively with deionized water; Sb, add the epoxy soybean oil into the gelatin aqueous solution prepared in step Sa, stir at a speed of 800-1000 rpm for more than 15 min, then add the gelatin aqueous solution, and homogenize at a speed of more than 8000 rpm for more than 10 min to obtain a homogenized emulsion; Sc, add a glutaraldehyde solution with a concentration of more than 25% to the homogenized emulsion prepared in step Sb, and let it stand for more than 30 min for reaction, then filter out the solid product, and dry to obtain the microencapsulated epoxy soybean oil.

10. A process for the preparation of the high temperature resistant, age resistant, waterproofing membrane as claimed in claim 1, characterized in that, Comprise the following steps: S1, add the formula amount of SBS thermoplastic elastomer, waste rubber powder, nano titanium dioxide and antioxidant into a mixing machine, mix at a temperature of 165-175℃ for more than 30 min, and cool to obtain a mixed rubber; S2, add the mixed rubber prepared in step S1 into the formula amount of base pitch, add the formula amount of microcapsule repairing agent and warm mixing agent, and then mix at a temperature of 90-100℃ for more than 2 h to obtain SBS modified asphalt; S3, calender the SBS modified asphalt prepared in step S2, then coat a concrete adhesion layer, and then attach a separation film to obtain a high-temperature-resistant, anti-aging and waterproofing membrane.

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